Transco
Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Active Notices
Showing 1131 notices
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Transco
Non-Tariff Quality Gas at LIVE OAK KARON M1345
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/24/2026 - LIFTED
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/24/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
REMINDER - Station 195 Outage (Job 578694) 2026 Planned Outage Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/09/2026 - 10/13/2026
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/08/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/07/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/06/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location(s) Off Rate Notice - Underperformance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Notice of Force Majeure Event - Unplanned Outage Station 50 Main Unit 9
Transco is reporting that repairs to Main Unit 9 at Compressor Station 50 (MP 517.23, South-to-North, loc ID 9013363) have been completed and the unit has been returned to service. The associated TSB limitation is lifted effective the ID1 cycle for Gas Day October 3, 2026. This notice supersedes prior notice 17324005 and ends the force majeure event.
Station 50 Unit 9 restoration removes the TSB limitation effective ID1 October 3; live capacity data shows CS 50 MP 517.25 at 59.6% utilization with 0.856 Bcf/d headroom, corroborating full return to service -- no residual basis impact expected at Transco Zone 4 or Henry Hub.
Reroute: High: the constraint has been resolved and no reroute is needed; during the outage, Transco's south-to-north mainline south of Station 50 had moderate reroute via alternative southern zone capacity.
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Transco
Update - Notice of Force Majeure Event - Unplanned Outage - Guillory M3681 Meter Station 2026
Transco has declared the force majeure at the Guillory M3681 Meter Station (Location ID 9013263, MP 473.5) resolved. Repairs to facility piping are complete and the station will be returned to service and available for scheduling effective gas day 10/3/2026. Live capacity data shows the receipt meter at zero operating capacity on the 10/2 evening cycle (vs-design flag), consistent with it being offline prior to restoration.
Force majeure at Guillory M3681 is fully resolved effective 10/3/2026 gas day; no ongoing capacity restriction at this receipt point and no actionable basis signal.
Reroute: Moot -- the constraint is resolved and supply is being restored to full service.
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Transco
Location(s) Off Rate Notice - Underperformance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Notice of Force Majeure Event - Unplanned Outage - Guillory M3681 Meter Station 2026
Transco declared a Force Majeure event on 9/28/2026 due to integrity concerns on piping at the Guillory M3681 Meter Station (loc 9013263, Receipt, MP 473.5). The location was immediately restricted to zero scheduled capacity effective ID3 gas day 9/28/2026, with anticipated return to service October 3, 2026 -- a five-day outage. This is a revision superseding prior notice 17328542, with the key new information being the October 3 anticipated return-to-service date.
Transco FM at Guillory M3681 receipt meter eliminates scheduling capacity at this Gulf Coast receipt point through October 2; live capacity data confirms 0 Bcf/d operating and scheduled at loc 9013263 (evening cycle 9/30), corroborating the outage, with bullish implications for Transco Zone 4 basis as Gulf Coast receipt supply is curtailed; no volume stated in the notice so system-wide impact depends on typical throughput at this meter.
Reroute: Limited to moderate: Transco is the dominant Southeast-to-Northeast pipeline and producers with access to alternative interconnects (Gulf South, CGT, TETCO) may be able to reroute volumes, but the specific meter restriction at Guillory M3681 eliminates that receipt point entirely for its contracted shippers.
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Transco declared force majeure on 9/28/2026 due to a Variable Frequency Drive failure on Main Unit 9 at Compressor Station 50 (MP 517.23), restricting south-to-north mainline flows effective timely gas day 9/29/2026. The TSB at MP 517 shows design capacity of 1.536 Bcf/d with total available quantity of 1.300 Bcf/d, representing a 0.236 Bcf/d reduction (approximately 15% of design capacity) with 5-12% cuts to primary firm service. Repairs are underway and expected to be completed by end of week, but no firm restoration date is given and duration remains UFN.
Transco Station 50 force majeure removes approximately 0.236 Bcf/d of south-to-north mainline capacity with 5-12% primary firm cuts, supportive of Transco Zone 4 and downstream zone basis widening vs Henry Hub; monitor CS 60 (already at 100% utilization per live data) and CS 65 South (81.5% loaded) as downstream choke points that could amplify impact if repairs extend beyond week-end.
Reroute: Limited: Transco is the dominant pipeline in the Southeast-to-Northeast corridor; Southern Natural Gas provides partial real-world alternative capacity in the Southeast but is unmonitored and cannot be confirmed available. Tennessee Gas Pipeline serves overlapping Northeast markets but cannot fully offset a Transco mainline constraint at this scale.
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Transco
Update - Notice of Force Majeure Event - Unplanned Outage – Guillory M3681 Meter Station 2026
Transco declared a force majeure on 9/28/2026 due to integrity concerns on piping at the Guillory M3681 Meter Station (loc 9013263, receipt point, MP 473.5), effective ID3 gas day 9/28. Total available capacity at this receipt point has been zeroed out (EPSQ/0), and the location is unavailable for scheduling or flow until further notice. Repair work is underway with no restoration timeline posted; an updated timeline will follow when available.
Transco receipt FM at Guillory M3681 removes this Gulf Coast receipt point from scheduling UFN with zero available capacity confirmed in live data (loc 9013263 showing 0 Bcf/d operating capacity, 0.015 Bcf/d still scheduled vs-design flag); with Zone 4, Zone 5, and Zone 6 segment headroom already at 0% in today's intraday cycle, any reduction in Gulf Coast receipts adds incremental bullish pressure to Transco Zone 4 and downstream Southeast basis.
Reroute: Moderate: Transco serves Gulf Coast-to-Southeast flows alongside Southern Natural Gas (SNG, unmonitored) and Tennessee Gas Pipeline; shippers at this specific receipt meter have no bypass at this location, but alternative receipt points on Transco and competing pipes may partially offset lost supply. However, with Zone 4 and Zone 5 segment headroom already at 0% today, absorbing rerouted volumes on Transco itself is constrained.
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SEV 4/5
Transco has declared a force majeure event at the Guillory M3681 Receipt Meter Station (Location ID 9013263, MP 473.5) effective ID3 gas day 9/28/2026 through at least the Evening cycle of 9/29/2026 due to equipment failure. The station is unavailable for scheduling or flow until further notice, with no restoration date provided. Live capacity data from intraday 2 on 9/28 showed 0.321 Bcf/d scheduled at this receipt point against 1.03 Bcf/d operating capacity, so the curtailed volume is approximately 0.321 Bcf/d; however, that reading predates the event and current scheduled quantities are now effectively zero per the notice.
Transco force majeure at Guillory M3681 (MP 473.5, Zone 4 corridor) removes approximately 0.321 Bcf/d of receipt capacity until further notice -- expect mild bullish pressure at Transco Zone 4 basis, with limited broader HH signal given the localized receipt-point nature of the outage; mainline segments remain largely unconstrained at this time but the UFN duration warrants monitoring.
Reroute: Limited: as a receipt meter station on Transco, the reroute option is for upstream shippers to redirect gas to alternative Transco receipt points or competing pipelines (Gulf South, CGT) serving this Louisiana corridor, but those arrangements require operational changes and may not fully replace scheduled quantities on short notice.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco has declared a force majeure event due to an unplanned equipment failure on Main Unit 9 at Compressor Station 50 (MP 517.23), effective timely gas day 9/29/2026 with no end date provided. The outage restricts south-to-north mainline flows through the TSB at MP 517, reducing total available capacity from 1,536 Mdt/d design capacity to 1,300 Mdt/d available -- a loss of approximately 236 MMdt/d (0.236 Bcf/d) -- with primary firm shippers facing potential cuts of 5-12% based on historical utilization. An updated posting with an estimated return-to-service date is expected no later than September 30, 2026.
Transco CS 50 force majeure removes approximately 0.236 Bcf/d of south-to-north mainline capacity effective 9/29 UFN, expect bullish pressure at Transco Zone 4 and Zone 5/6 as northbound supply tightens, with primary firm shippers at 5-12% cut risk and no restoration timeline yet available.
Reroute: Limited: Transco is the dominant south-to-north mainline in this corridor; Southern Natural Gas (not monitored for live conditions) provides partial Southeast alternative capacity but cannot fully replace Transco mainline throughput for Mid-Atlantic and Northeast deliveries. Tennessee Gas Pipeline offers some competing capacity for Northeast markets but is unlikely to absorb the full constraint volume.
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Transco
Location Confirmations Being Reduced for 09/28/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 09/27/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 09/25/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Station 195 Outage (Job 578694) 2026 Planned Outage Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 09/24/2026
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Unplanned Maintenance - Tryon Lateral
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location(s) Off Rate Notice - Underperformance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 09/23/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance - Tryon Lateral
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Location Confirmations Being Reduced for 09/20/2026 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 09/20/2026 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 60 Mainline C (Job 808136) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 195 Outage (Job 578694) 2026 Planned Outage Maintenance Summary
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Station 620 (Job 355854) 2026 Planned Outage Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Non-Tariff Quality Gas at PETTUS OUTLET M3649
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Non-Tariff Quality Gas at PETTUS OUTLET M3649
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Non-Tariff Quality Gas at PETTUS OUTLET M3649
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance – ANR Duralde Meter Station 2026
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update: Job 327549 & 477378 Mainline B & Station 155 2026 Planned Outage and Maintenance Summary
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 35 Tool Runs (Job 134423) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Transco posted an updated daily market and production constraints notice effective August 25, 2026, superseding prior notice 17197658. Multiple segments across Zones 2 through 6 show zero or near-zero available capacity, including Compressor Station 160 (Zone 5 delivery, 1,726 Mdt/d available primary), Central Penn Line South N-to-S (Zone 6, 2,093 Mdt/d primary), SELA N-to-S and S-to-N (Zone 3, zero available primary), and several Zone 5/6 segment TSBs at zero NSRP and secondary capacity. HBLV swing availability is zero across Zones 2 through 6, signaling no no-notice swing buffer on the entire mainline north of Zone 1. Live capacity data from 2026-08-22 (two days prior, may not yet reflect August 25 conditions) corroborates tightness at CS 160 and TSB MP 1412.98 to MP 1369.45, both at 100% utilization with zero headroom.
Transco mainline is running at or near capacity on multiple northbound Zone 3-6 segments with zero HBLV swing buffer Zones 2-6 and several delivery laterals at zero available capacity, pointing to bullish pressure at Transco Zone 4 Southeast basis and elevated Zone 5/6 Mid-Atlantic and Northeast basis vs Henry Hub for the August 25 gas day; CS 60 (Zone 3 receipt, 0.0% headroom at 1.92 Bcf/d) and CS 160 (Zone 5 delivery, 0.0% headroom at 1.73 Bcf/d) are the most acute binding points per the two-day-lagged live data.
Reroute: Limited: for Southeast Zone 3/4 tightness, Southern Natural Gas serves overlapping Gulf Coast and Southeast markets but is unmonitored with unknown spare capacity; for Zone 5/6 Mid-Atlantic and Northeast, Tennessee Gas Pipeline (TGP) is the primary alternative but is frequently loaded during summer peak demand.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 35 Tool Runs (Job 134423) 2026 Planned Outage and Maintenance Summary
Transco is performing inline inspection tool runs (pig runs) between Station 35 and Station 40 on August 25 (HS/Combo Tool) and August 27 (EMAT Tool) as part of Job 134423. Due to operational challenges, the originally anticipated maintenance impact can no longer be achieved within the previously posted restriction, and Transco will restrict scheduled quantities for all transportation priorities moving south to north through TSB location ML S35 S to N MP 327.27 (Location ID 9011644). Available capacity will be reduced to 425,000 Dt/d (0.425 Bcf/d) on August 25 and 480,000 Dt/d (0.480 Bcf/d) on August 27, versus a design capacity of 708,995 Dt/d (0.709 Bcf/d), representing cuts of 10-15% to primary firm shippers on each day.
Transco S-to-N mainline through Station 35 (MP 327.27) will be cut to 0.425 Bcf/d on Aug 25 and 0.480 Bcf/d on Aug 27 (vs 0.709 Bcf/d design), removing up to 0.284 Bcf/d of northbound capacity on the tighter day; expect modest bullish pressure at Transco Zone 4 and downstream Zone 5/6 basis versus Henry Hub on those discrete days.
Reroute: Limited: Transco is the dominant pipeline in this corridor and while SNG provides partial Southeast alternative capacity in principle, SNG is unmonitored and significantly smaller than Transco, meaning full offset of even this partial restriction is unlikely on the affected days.
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Transco
2026 Major Construction and Maintenance Projects
Transco has updated its 2026 major construction and maintenance schedule, posted as a link on the 1Line portal. The notice supersedes prior notice 17162011 and adds a new tab for Pipeline Inspection (ILI) activities. No specific capacity restrictions are stated in this notice; Transco indicates that individual maintenance activities expected to affect transportation services will receive separate notices prior to commencement.
This is a schedule update only with no quantified capacity impact -- any basis or flow implications will be conveyed in separate notices issued before each individual project begins; no actionable trading signal at this time.
Reroute: Not applicable -- no capacity constraint is declared in this notice. Individual project impacts will be assessed when project-specific notices are issued.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Gas Merchantability Notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmation Changed for 08/24/2023 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmation Changed for 08/29/2023 Evening Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 09/01/2023 ID1 Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 09/08/2023 Evening Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Location Confirmations Being Reduced for 09/08/2023 Evening Cycle LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Job 880738 & Job 351475 Station 70 2023 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 09/21/2023 Evening Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 10/01/2023 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 10/06/2023 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order Zone 6 - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order Zone 6 - Imbalance
This is Revision 3 of a Transco Zone 6 Imbalance OFO originally posted on October 20, 2023, effective October 21, 2023, with no stated end date. The OFO applied to all deliveries in Zone 6 and required shippers to maintain concurrent balance of receipts and deliveries, with a 10% tolerance and minimum $50/dt/day penalty for violations. No new operational information is contained in this revision relative to the prior filing, and the underlying event is nearly three years old, making this a legacy repost.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying October 2023 Zone 6 imbalance OFO is a legacy event with no current trading signal.
Reroute: Limited: Transco Zone 6 covers the New York metro and Mid-Atlantic delivery area; Tennessee Gas Pipeline (TGP) provides partial alternative for some Mid-Atlantic volumes, but this OFO is a legacy filing with no active operational constraint to reroute.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 11/01/2023 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Introducing a new TSB on the Regional Energy Access Lateral
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Job #897533 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Unplanned Outage Station 195
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 12/06/2023 Evening until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Unplanned Outage Station 195
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Location Confirmations Being Reduced for 12/06/2023 Evening until further notice LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 and 2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Maintenance on SELA Lateral
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 and 2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Unplanned Maintenance on SELA Lateral
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Unplanned Outage Station 195
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2023 and 2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Unplanned Maintenance continuing on SELA Lateral
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update 2: Unplanned Outage Station 195
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2023 and 2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Maintenance continuing on SELA Lateral
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 01/04/2024 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 1/16/2024 ID1
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 1/17/2024 ID1
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Location Confirmations Being Reduced for 1/17/2024
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 1/18/2024 ID1
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Outage – Victoria Invista (1006391)
This is Revision 3 of a notice originally posted 02/02/2024, flagging an unplanned outage at the Victoria Invista delivery meter (loc 1006391, MP 200.1) on Transco with no stated end date. No escalation triggers are present in this revision -- no force majeure declaration, no curtailment of firm service, no new locations added, and no worsened restoration timeline versus prior revisions. The capacity data from 2026-08-18 (2 days prior and not reflecting the 2024 event) shows this meter at 0.095 Bcf/d operating capacity with only 0.017 Bcf/d scheduled, consistent with a long-standing outage already priced by the market.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Not applicable: Victoria Invista is a single industrial end-user delivery point on Transco; the outage affects only that customer's receipts and does not displace mainline volumes to other markets.
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Transco
Updated - Unplanned Outage – Victoria Invista (1006391)
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Unplanned Outage – Victoria Invista (1006391)
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned pipeline segment outage in Zone 6
This is Revision 3 of a February 9, 2024 unplanned pipeline segment outage near Compressor Station 195 (MP 1674) in Transco Zone 6, originally limiting north-to-south primary-firm transportation to 2,239 MDth/d (2.239 Bcf/d) with no restoration timeline. No escalation triggers are present in this revision -- no new locations, no worsening timeline, no force majeure, no OFO, and no curtailment escalation language versus prior revisions. The original event is approximately two and a half years old relative to the Last Updated date of 2026-08-20, making this a legacy repost; live capacity data from 2026-08-18 shows CS 195 at 76.4% utilization with 0.653 Bcf/d of available headroom, consistent with normal operations.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; this is a legacy repost of a February 2024 event with no current trading signal.
Reroute: Limited: Transco is the dominant pipeline in this Zone 6 north-to-south corridor; Tennessee Gas Pipeline (TGP) serves overlapping Northeast markets but cannot fully replace Transco Zone 6 north-to-south capacity for Mid-Atlantic and New York deliveries. However, given this is a stale revision of a 2024 event with live data showing normal CS 195 operations, reroute is moot.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned pipeline segment outage in Zone 6
This is Revision 3 of a February 2024 notice (original post date 02/15/2024, anticipated completion 02/17/2024) describing an unplanned pipeline segment outage near Compressor Station 195 in Transco Zone 6. The notice is a legacy repost -- the event originated over two years before the Last Updated timestamp of 2026-08-20. No new operational information is present in this revision; the outage and its 2,239 MDth/d north-to-south primary-firm capacity constraint were resolved by February 17, 2024 at the latest.
No new market impact -- this is a stale revision of a February 2024 outage that has long since been resolved; market has already priced this constraint and no current trading signal exists.
Reroute: Limited: Transco is the dominant north-to-south pipeline in Zone 6; Southern Natural Gas provides partial real-world alternative but this is a historical event and reroute is moot.
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Transco
Station 180 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 2/22/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 195 (Job 30006) Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Activating TSB on Transco’s Mainline
This is Revision 3 of a February 28, 2024 critical notice activating a Throughput Section Boundary (TSB) at Zone 2 mainline location ML S35 S-N MP 327.27 (Location ID 9011644) on Transco's mainline, managing south-to-north transportation services. The notice was originally posted over 18 months ago and no restoration end date was ever specified. No escalation triggers are present in this revision -- no new locations added, no force majeure, no curtailment escalation, and no worsened timeline language versus prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (not monitored) provides partial Southeast alternative, and Tennessee Gas Pipeline serves overlapping Northeast markets, but neither fully replicates Transco mainline capacity.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 60 (Job 481980 & 481985) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 3/12/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
This is Revision 3 of a Transco imbalance OFO originally posted March 12, 2024, effective March 13, 2024, covering Zones 4, 5, and 6 until further notice. No escalation triggers are present in this revision -- no new locations, no force majeure, no capacity volume stated, no worsened timeline, and no firm curtailment language beyond the original imbalance OFO terms. The notice is also a legacy repost, with the original effective date more than two years before this revision's Last Updated timestamp of August 20, 2026.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; legacy OFO from March 2024 carries no fresh trading signal.
Reroute: Moderate: Southern Natural Gas and Tennessee Gas Pipeline serve overlapping Southeast and Mid-Atlantic corridors, though SNG real-time conditions are unmonitored; for Zone 6 Northeast deliveries reroute is limited given Transco and TGP are the two dominant pipes.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Markham Brazos 538 Maintenance - CTGS Lateral Update
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 3/22/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 3/22/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 03/22/2024 Timely Cycle until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 4/1/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 4/1/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmation Changed for 3/28/2024 Timely Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 04/05/2024 ID2 Cycle until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Changed for 04/10/2024 Timely Cycle until further notice
Transco issued a revision (now Revision 3) to a April 2024 critical notice reducing the confirmation quantity at the Katy-Atmos receipt meter (M3559, Loc 1005518) to 20,000 MMBtu/day (0.020 Bcf/d) effective the Timely cycle for gas day 04/10/2024, continuing until further notice. This is a stale revision reposted in August 2026 for an operational event that originated in April 2024; no new operational information is contained in this revision. The volume involved is immaterial at system scale -- 0.020 Bcf/d against a Transco mainline carrying 3-4+ Bcf/d.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the 0.020 Bcf/d Katy-Atmos receipt restriction is immaterial to Henry Hub or Transco Zone 4 basis.
Reroute: High: the Katy Hub area is served by numerous Transco receipt interconnects and intrastate pipelines; volumes not confirmed at this meter can readily flow via alternative receipt points with no meaningful supply impact.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 60 (Job 40627) Planned Outage and Maintenance Summary¿
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 180 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 60 (Job 481980 & 481985) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Third Party Mobile Bay Lateral Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE Location Confirmations Being Reduced for 04/30/2024 ID1 Cycle until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmations Being Reduced for 04/30/2024 ID1 Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Station 60 (Job 40627) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 520 (Job 425118) 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/10/2024 ID1 Cycle until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 60 Update
This is Revision 3 of a May 2024 critical notice (originally posted 05/10/2024) describing an unplanned incident at Transco Station 60 in East Feliciana Parish, Louisiana that restricted primary south-to-north transportation to 775 MDth/d (0.775 Bcf/d). No escalation triggers are present in this revision -- no new locations, no worsened timeline, no force majeure declaration, no OFO, and no change to the capacity figure. Live capacity data for 2026-08-18 confirms COMPRESSOR STATION 60 MP 588.62 S to N is at 100% utilization with zero headroom (1.93 Bcf/d scheduled against 1.93 Bcf/d operating capacity), consistent with the long-standing TSB constraint. This is a stale revision of an event that originated over two years before the Last Updated date, and the market has long since priced this constraint.
No new market impact -- operational situation unchanged from prior revision, market has already priced this 0.775 Bcf/d south-to-north restriction at Station 60.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (SNG, unmonitored) provides partial alternative capacity in the real world, but SNG is significantly smaller than Transco and its current conditions are not live-verified in this system.
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Transco
Update Washington Storage Semi-Annual Outage: Job #123181 2024 Planned Outage and Maintenance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update Location Confirmations for 04/10/2024 Timely Cycle until further notice LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Upcoming May 2024 Maintenance Jobs Reminder
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/10/2024 ID1 Cycle until further notice LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 05/10/2024 ID1 Cycle until further notice LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Upcoming May 2024 Maintenance Jobs Reminder
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 520 (Job 425118) 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 60 Update
This is Revision 3 of a maintenance/incident notice originally posted 05/17/2024 regarding an ongoing investigation at Station 60 (MP 588.62) on Transco. No new operational information is provided -- the notice confirms only that operating restrictions remain in effect and federal/agency cooperation continues. No escalation triggers are present: no force majeure declaration, no escalation to firm curtailments, no new locations added, and no worsened restoration timeline beyond the pre-existing open-ended status.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (SNG, unmonitored) provides partial real-world alternative capacity in the Southeast segment, but SNG live conditions are unverifiable in this system. Station 60 at MP 588.62 sits in Transco Zone 3 (Southeast), and the live capacity table confirms zero headroom at this point (1.93 Bcf/d scheduled against 1.93 Bcf/d operating capacity as of 2026-08-18), consistent with the ongoing restriction being active and binding.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 535
This is Revision 3 of a May 2024 critical notice regarding an unplanned outage at Transco's Station 535 facility near Wharton, PA, which supports the Wharton Storage Field and Rate Schedule GSS injection services. No escalation triggers are present in this revision -- no force majeure declaration, no firm curtailments, no new affected locations, and no worsened restoration timeline beyond the original 'up to 30% reduction in GSS injection capability' language. The operational situation appears unchanged from prior revisions, and no specific capacity volume or end date is provided.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Wharton Storage Field supports Transco GSS service in Pennsylvania; no direct physical reroute exists for storage injection capability, though the GSS service impact is limited to a potential 30% reduction in injection flexibility rather than mainline transport curtailment.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/29/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Washington Storage Semi-Annual Outage: Job #123181 2024 Planned Outage and Maintenance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
¿June 2024 Maintenance Jobs Reminder
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Station 535
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/30/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/31/2024 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Transco Mainline ‘C’ (Job 945712) 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 05/31/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update Third Party Mobile Bay Lateral Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 60 Update
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update SELA Offshore (Job #265065) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 06/17/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 80 Update - Unplanned Maintenance
This is Revision 3 of a June 18, 2024 unplanned maintenance notice for Transco Station 80 (MP 740.50), posted over two years before the current date of August 20, 2026. The original event limited southbound-to-northbound flow through the TSB at MP 740.50 to approximately 2.045 Bcf/d. No escalation triggers are present in this revision -- no new force majeure, no worsened timeline, no new locations added -- making this a stale revision with no new operational information.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying Station 80 unplanned maintenance event dates to June 2024 and any basis impact at Transco Zone 4 and downstream markets was fully absorbed at that time.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (unmonitored) provides partial Southeast alternative capacity, but this is a legacy event with no current operational relevance.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
June 2024 Maintenance Jobs Reminder (Updated)
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 80 Update - Unplanned Maintenance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Location Confirmations Being Reduced for 07/12/2024 TMY until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 07/16/2024 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Location Confirmations Being Reduced for 07/16/2024 ID1 Cycle LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 07/25/2024 ID Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 07/26/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
UPDATE - Station 520 (Job 425118) 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 190 (Job 41154) 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Station 70 (Job 440482) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 07/27/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 09/10/2024 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Sabine River MLB Outage – Unplanned Maintenance
This is Revision 3 of a September 10, 2024 unplanned maintenance notice for Transco Mainline B near MP 438.84, posted nearly two years before the current date of August 20, 2026. The notice describes isolation of Mainline B between valves 40B30 and 40B40 with south-to-north flow limited to 450 MDth/d (0.450 Bcf/d), with no end date stated and Hurricane Francine cited as a potential delay. No escalation triggers are present in this revision -- the operational situation is unchanged from the prior revision and the market priced this constraint at its September 2024 effective date.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying event dates to September 10, 2024 and this revision carries no new operational information.
Reroute: Moderate: Southern Natural Gas serves overlapping Gulf Coast-to-Southeast corridors and Transco has multiple south-to-north mainline segments that may carry volumes around the MP 438.84 restriction, though SNG is unmonitored and real-time spare capacity cannot be confirmed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 09/10/2024 ID1 Cycle LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Maintenance at West Bernard Location 9012883
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Maintenance at West Bernard Location 9012883 - Update
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of a September 26, 2024 critical notice regarding an unplanned outage on Transco Mainline B near MP 438.84 (Sabine River area), limiting southbound-to-northbound flow to 450 MDth/d (0.450 Bcf/d). No escalation triggers are present in this revision -- the return-to-service timeline remains 'prior to end of year' (originally stated in September 2024), and no new locations, curtailment escalations, or worsened timelines appear. This notice was last updated August 20, 2026, roughly 23 months after the original effective date of September 26, 2024, making it a legacy repost of a long-resolved or administratively retained event.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; note this is a legacy repost of a September 2024 event now approximately 23 months old with no new trading signal.
Reroute: Limited: Southern Natural Gas provides partial alternative capacity in the Southeast corridor, but SNG is unmonitored and its real-time condition cannot be confirmed; Transco is the dominant Southeast-to-Northeast pipeline and a 0.450 Bcf/d restriction on Mainline B near MP 438.84 would have limited full bypass options at the time of the original event.
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Transco
System Operating Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced starting 10/01/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced starting 10/01/2024 ID2 Cycle - LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
System Operating Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Subject: SELA Line A Outage - Unplanned Maintenance
This is Revision 3 of a notice originally posted October 11, 2024 -- nearly 10 months before the Last Updated timestamp of 2026-08-20 -- making this a legacy repost of a historical event. The notice describes an unplanned pressure isolation on a portion of the Southeast Louisiana Lateral (SELA) between valves 62a12 and 62a30 near MP 85.38, cutting off the Larose receipt location (ID 9002040). No escalation triggers are present in this revision: no force majeure, no new locations, no firm curtailment language, and no worsened timeline relative to prior revision.
No new market impact -- this is a legacy repost of an October 2024 SELA outage; the market priced this constraint at the original effective date and the operational situation is unchanged from the prior revision.
Reroute: Moderate: Transco mainline receives Gulf Coast supply from multiple receipt paths and the SELA lateral represents one of several Louisiana gathering interconnects; however, specific reroute capacity at the time of the original October 2024 event cannot be assessed from current data.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Caldwell Loop Anomaly Dig Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Job #909867 MLC Mississippi River to Sta 65 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Job 41056 Sta 70 MLD 2024 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 116 Unplanned Compressor Maintenance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update: Station 120 (Job #548015) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of an unplanned outage notice originally posted October 28, 2024, covering a Transco Mainline B failure near milepost 438.84 (Sabine River area). The update states that return-to-service is anticipated February 18, 2025, with no new escalation triggers versus prior revisions. No escalation triggers are present: no new locations added, no force majeure declared, no curtailment of firm service, and the restoration timeline (February 18, 2025) was established in prior revisions. As of the Last Updated date of August 20, 2026, this notice is also a legacy repost of an event that occurred and resolved nearly two years ago.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; note this is also a legacy repost of an October 2024 outage that was anticipated to resolve by February 18, 2025, and any basis signal was priced at the original effective date.
Reroute: Moderate: Transco mainline south-to-north capacity through the Sabine River area could be partially offset via Southern Natural Gas and Tennessee Gas Pipeline for overlapping Southeast corridor volumes, though neither fully replaces Transco's throughput at this segment.
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Transco
UPDATE Location Confirmations Being Reduced for 10/29/2024 Evening Cycle until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - SELA Line A Outage - Unplanned Maintenance
This is Revision 3 of a Transco critical notice originally posted October 29, 2024, describing an unplanned isolation and pressure reduction on the Southeast Louisiana Lateral (SELA) Line A between the 62A12 and 62A30 valves near MP 85.38, with an anticipated return-to-service date of December 2, 2024. The effective date (October 12, 2024) is nearly two years prior to the Last Updated timestamp (August 20, 2026), confirming this is a legacy repost of a fully resolved historical event. No escalation triggers are present in this revision, and no new operational information is provided relative to prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying SELA Line A outage originated in October 2024 and was anticipated to resolve by December 2, 2024, making this a stale legacy repost with no current trading signal.
Reroute: Not applicable -- this is a legacy event from October 2024 with no current operational relevance. At the time of the original outage, the SELA lateral serves specific Southeast Louisiana receipt points (Larose, loc 9002040); limited reroute options exist via Transco mainline or Gulf South for volumes that were affected.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmations Being Reduced for 10/30/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
(Updated) Job #909867 MLC Mississippi River to Sta 65 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmations Being Reduced for 10/31/2024 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmations Being Reduced for 10/31/2024 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced starting 11/04/2024 ID3 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE Location Confirmations Updated Starting Evening Cycle 11/05/2024
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE: CORRECTION Location Confirmations Updated Starting Evening Cycle 11/06/2024
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations being reduced starting ID3 Cycle 11/05/2024
This is Revision 3 of a November 2024 critical notice (original post date 11/05/2024) reporting a reduction in location confirmations at Golden Pass M/L (Location ID 9013124, a receipt point on Transco) starting the ID3 cycle on 11/05/2024. No escalation triggers are present in this revision -- no new locations, no force majeure, no curtailment escalation, no worsened timeline, and no capacity volume is stated. The notice simply repeats the original operational alert with no new information added.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Moderate: Transco is one of the highest-capacity U.S. interstate pipelines with multiple interconnects; no specific volume loss is stated and the notice does not indicate firm service curtailments, limiting reroute assessment.
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Transco
Location Confirmations being reduced starting ID3 Cycle 11/05/2024
This is Revision 3 of a Transco scheduling alert originally posted on 11/05/2024, now being reviewed on 08/20/2026 -- over 21 months after the original event. The notice describes a possible lightning strike at the Golden Pass M/L meter (Location 9013124, a receipt point) that reduced confirmation quantities to zero for Evening cycle starting 11/06/2024. No escalation triggers are present in this revision: no force majeure declaration, no capacity volume stated, no worsened timeline, and no new locations added. This is a stale revision with no new operational information.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Moderate: Transco is a high-capacity system with multiple Gulf Coast and Haynesville receipt points; a single meter reduction at Golden Pass M/L in 2024 would have had limited system-wide impact and alternative receipt paths were available.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced starting 11/06/2024 ID1 Cycle
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE: Location Confirmations Updated Starting Timely Cycle 11/07/2024
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced starting 11/07/2024 Timely Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Location Confirmations being reduced starting ID3 Cycle 11/05/2024
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Location Confirmations Being Reduced starting 11/07/2024 Timely Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 80 (Job 455422) Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE: Location Confirmations Updated Starting ID1 Cycle 11/8/24
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE: Location Confirmations Updated Starting ID3 Cycle 11/8/24
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE: Location Confirmations Updated Starting ID3 Cycle 11/8/24
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of a November 2024 unplanned outage notice for Transco Mainline B between valves 40B30 and 40B40 near MP 438.84. The TSB at that milepost limits south-to-north flow to 450 MDth/d (0.450 Bcf/d); north-to-south flows are unaffected. The originally anticipated return-to-service date was February 18, 2025, but this notice -- last updated August 20, 2026 -- carries no updated restoration date, and the notice status is listed as Supersede, suggesting this is a legacy administrative repost of an event that has long since resolved or been superseded.
No new market impact -- this is a legacy administrative repost of a November 2024 unplanned Mainline B outage (0.450 Bcf/d south-to-north restriction at MP 438.84) that was anticipated to resolve by February 2025; the market priced this constraint at the original effective date nearly nine months ago.
Reroute: Moderate: during the original event, Southern Natural Gas and Tennessee Gas Pipeline provided partial alternative south-to-north capacity for Southeast and Mid-Atlantic markets, though neither fully replaces Transco mainline B south-to-north throughput at this scale.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - SELA Line A Outage - Unplanned Maintenance
This is Revision 3 of a November 2024 unplanned maintenance notice for the Southeast Louisiana Lateral (SELA) Line A between valves 62A12 and 62A30 near MP 85.38, affecting the Larose receipt location (ID 9002040). The prior revision updated the return-to-service date from December 2, 2024 to November 20, 2024; this revision confirms repairs were completed ahead of schedule. No escalation triggers are present -- no force majeure, no firm curtailments, no worsened timeline, and no new affected locations.
No new market impact -- repairs to SELA Line A were completed ahead of schedule per this revision, situation resolved from prior revision, market has already priced this constraint.
Reroute: Moderate: Transco mainline and other Gulf Coast receipt points provide alternative supply paths into the Southeast; SELA is a lateral, not the mainline, limiting systemic impact.
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Transco
Update-Job 41056 Sta 70 MLD 2024 Planned Outage and Maintenance Summary
This is Revision 3 of a November 2024 maintenance notice for Transco Job 41056 at Compressor Station 70 (MP 662, Station 70 TSB), covering planned pipeline inspection and hard spot remediation work scheduled for December 2-5 and December 9-12, 2024. The notice states available capacity would be reduced from 3,466 MDt/d (3.466 Bcf/d) to 2,350 MDt/d (2.350 Bcf/d), a restriction of 1,116 MDt/d (1.116 Bcf/d) on south-to-north flows. The scheduled maintenance dates are now approximately 8 months in the past; no new operational information is present in this revision, and no escalation triggers are present.
No new market impact -- operational situation unchanged from prior revision; the December 2024 maintenance at Compressor Station 70 is long concluded and the market has already priced this constraint.
Reroute: Moderate: Southern Natural Gas (SNG) provides partial alternative capacity in the Southeast corridor, though SNG is not monitored in this system; Tennessee Gas Pipeline (TGP) also serves overlapping markets northward, but neither fully offsets a 1.116 Bcf/d Transco mainline restriction.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced starting 11/07/2024 Timely Cycle LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Post Cycle and Retroactive Nominations
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Anomaly Dig Maintenance Summary
This is Revision 3 of a December 2024 notice (originally posted 12/11/2024) regarding an unplanned anomaly dig on Transco's MLA segment between the Mississippi River and the Amite River, specifically the 65A10-65A20 line segment. The notice identifies two small delivery locations affected -- McComb #4483 and Magnolia UGPL #4150 -- and states Transco is working with those operators to mitigate flow impact. No escalation triggers are present in this revision: no new locations added, no force majeure, no curtailment escalation, no worsened timeline, and no capacity volumes quantified.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Transco is the dominant Southeast pipeline in this corridor; however, the two affected delivery points (McComb, MS and Magnolia, LA) are small local delivery taps and any volumes curtailed there are unlikely to be material enough to warrant system-level rerouting.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update-Job 41056 Sta 70 MLD 2024 Planned Outage and Maintenance Summary
This is Revision 3 of a December 2024 planned maintenance notice (Job 41056) at Transco Station 70 (MP 662), covering pipeline inspection work under the Hard Spot Remediation Program. The maintenance windows were December 10-12 and December 15-17, 2024 -- both dates are approximately eight months in the past relative to the August 2026 Last Updated timestamp. No new operational information is introduced in this revision; the constraint described (3,466 MDth/d design capacity reduced to 2,350 MDth/d available, or approximately 1.116 Bcf/d of restriction, south-to-north) reflects the same figures from prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying December 2024 maintenance at Station 70 is a legacy event and the ~1.116 Bcf/d south-to-north restriction has been resolved for months.
Reroute: Moderate: Southern Natural Gas and Tennessee Gas Pipeline serve overlapping Southeast-to-Northeast corridors and could absorb diverted volumes, though this is moot given the event dates are well in the past.
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Transco
2024 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update-Station 80 Unplanned Compressor Unit Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update-Station 80 Unplanned Compressor Unit Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 01/07/2025 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 01/09/2025 ID1 Cycle
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of a January 9, 2025 notice (Notice ID 15286708) regarding an unplanned outage on Transco Mainline B near MP 438.84 at the Sabine River, originally posted over 18 months ago. The notice references an anticipated return-to-service date of March 4, 2025 (with a prior estimate of February 18, 2025), meaning the underlying event is almost certainly fully resolved at this point. The south-to-north capacity constraint of 0.450 Bcf/d at TSB Location ID 9011140 was the operational impact; this revision contains no new operational information relative to the current gas day.
No new market impact -- this is a stale revision of a January 2025 outage with an anticipated return-to-service date of March 4, 2025; the constraint was priced at the original effective date and the underlying event is long resolved.
Reroute: Limited to moderate: Transco is the dominant Southeast-to-Northeast corridor pipeline, though SNG and Tennessee Gas Pipeline serve overlapping Southeast markets; the Mainline B constraint at MP 438.84 limited south-to-north capacity to 0.450 Bcf/d at that location during the original event period, which has since passed.
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Transco
Operational Flow Order - Imbalance
This is Revision 3 of a Transco OFO-Imbalance notice originally posted January 9, 2025 and effective January 11, 2025, covering Zones 4, 5, and 6 until further notice. No escalation triggers are present in this revision -- no new zones added, no force majeure, no firm curtailment language, and no worsened restoration timeline relative to prior revisions. The notice is a superseding administrative update to an OFO that the market priced over 18 months ago.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; live Transco mainline data (2026-08-18, 2-day lag) shows 64.2% average utilization with binding segment CS 84 at 1.0% headroom, consistent with normal summer operations unrelated to this January 2025 OFO filing.
Reroute: Not applicable -- this is a stale administrative revision of a January 2025 OFO with no current operational constraint to reroute. Transco Zones 4-6 alternatives include SNG (unmonitored) and Tennessee Gas Pipeline for Southeast/Mid-Atlantic portions, but no active constraint exists in this notice.
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Transco
Location Confirmations Being Reduced for 01/09/2025 ID1 Cycle - LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Compressor Station 190 MLC Unplanned Outage
Transco posted this notice on 01/14/2025 regarding an unplanned isolation of a portion of Mainline C between the Potomac River and Station 190 near MP 1610, affecting north-to-south flows at TSB MP 1628.78 (design capacity 2.684 Bcf/d). This is Revision 3 of that January 2025 notice, reposted as of 2026-08-20 -- the underlying event originated over 18 months ago, making this a legacy repost. No escalation triggers are present in this revision: no force majeure language, no firm curtailment escalation, no worsened restoration timeline, and no new affected locations are added.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; this is a legacy repost of a January 2025 event and carries no new trading signal.
Reroute: Limited: Transco is the dominant pipeline in this Mid-Atlantic corridor near MP 1628.78; Tennessee Gas Pipeline provides partial northeast market alternative, but for volumes flowing north-to-south toward Southeast markets, Southern Natural Gas (unmonitored) offers the primary partial alternative with significantly smaller capacity than Transco.
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Transco
Job 1088505 MLA near Station 100 Unplanned Maintenance Summary
This is Revision 3 of a January 2025 unplanned maintenance notice for Mainline A in the 100A0-100A10 valve segment near Station 100 (MP 890.591). The scheduled maintenance window was January 24-29, 2025 -- a six-day period now approximately 18 months in the past. No escalation triggers are present: no force majeure, no firm curtailments, no worsened restoration timeline, and no new affected locations. The stated constraint was a reduction from 6,147 MDth/d design capacity to 5,472 MDth/d available southbound-to-northbound, implying a restriction of approximately 675 MDth/d (0.675 Bcf/d), with an estimated 0-5% shipper cut based on historical utilization.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying maintenance window (Jan 24-29, 2025) is approximately 18 months in the past and carries no current trading signal.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (SNG, unmonitored) provides partial real-world alternative for Southeast volumes, but this event is historical and reroute assessment is academic at this stage.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update-Station 80 Unplanned Compressor Unit Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned Transco’s West End Lateral near MP 1819.17 Outage
This is Revision 3 of an unplanned outage on Transco's West End Lateral near MP 1819.17, originally posted January 20, 2025 -- a legacy event now over 18 months old relative to the August 2026 last-updated timestamp. The affected location, Kearney - Parkway M6236 (Location ID 9012223), is a single small delivery tap with an operating capacity of approximately 0.068 Bcf/d. No escalation triggers are present in this revision; the notice carries no restoration date and no new operational information beyond the original posting.
No new market impact -- this is a stale revision of a January 2025 outage on a 0.068 Bcf/d delivery tap; the market priced this constraint at original effective date and live capacity data confirms the location is currently showing 98.8% headroom as of the 2026-08-18 gas day, consistent with no ongoing material constraint.
Reroute: Limited: the West End Lateral serves a specific local delivery point with no named alternative; however, at 0.068 Bcf/d maximum operating capacity this tap is immaterial at system scale and reroute assessment is moot.
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Transco
Update - Compressor Station 190 MLC Unplanned Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Regional Energy Access (REA) Update
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update-Job 1088505 MLA near Station 100 Unplanned Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
This is Revision 3 of a Transco Imbalance OFO originally posted January 23, 2025, covering Zones 4, 5, and 6 system-wide. The OFO was initiated due to limited flexibility to manage imbalances and required shippers to maintain concurrent balance of receipts and deliveries; the third phase (beginning January 25, 2025) extended the Due From/Due To Shipper imbalance OFO until further notice. No escalation triggers are present in this revision -- no new locations added, no force majeure, no firm curtailment language, and no worsened restoration timeline relative to prior revisions. The notice is a legacy repost of an event from over 18 months ago.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; this is a legacy repost of a January 2025 OFO and carries no current trading signal.
Reroute: Moderate: Southern Natural Gas and Tennessee Gas Pipeline serve overlapping Southeast and Mid-Atlantic corridors, though SNG real-time conditions are unmonitored; for Northeast Zone 6, reroute options are limited as Algonquin and Iroquois serve distinct but overlapping markets.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update-Job 1088505 MLA near Station 100 Unplanned Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Transco’s West End Lateral near MP 1819.17 Outage
This is Revision 3 of a January 23, 2025 unplanned outage notice on Transco's West End Lateral near MP 1819.17, affecting the Kearney-Parkway M6236 delivery point (Location ID 9012223). No escalation triggers are present in this revision -- no new locations, no force majeure, no OFO, no worsened restoration timeline, and no curtailment language beyond the original scope. Live capacity data for 2026-08-18 (two days behind current, so predating this notice by over 18 months) shows the Kearney-Parkway M6236 meter at only 0.0008 Bcf/d scheduled against 0.068 Bcf/d operating capacity, confirming this is a small lateral delivery tap with negligible throughput.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the affected point (Kearney-Parkway M6236, max capacity 0.068 Bcf/d) is immaterially small relative to Transco system flows.
Reroute: Limited: the Kearney-Parkway M6236 is a small lateral delivery point; affected customers may have access to alternative local distribution or other delivery interconnects, but no system-level reroute is relevant at this scale.
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Transco
Unplanned Leidy Line near Station 517 Maintenance January 2025
This is Revision 3 of a January 24, 2025 unplanned maintenance notice for an anomaly on the Leidy Line segment 517B10 to 517B20 near Station 517 (TSB at MP 127.95), posted over 18 months after the original event. No escalation triggers are present in this revision -- no force majeure, no firm curtailments, no capacity figures, and no worsened restoration timeline versus prior revisions. The live capacity data (2026-08-18) shows LEIDY LINE STATION 517 EAST MP 127.95 at 58.3% utilization with 1.87 Bcf/d of headroom, consistent with normal operations, though this reading is from 18 months after the original event and cannot corroborate original conditions. This notice provides no new operational information and appears to be a stale administrative repost of a long-resolved January 2025 event.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: The Leidy Line is a major Appalachian segment of Transco; Tennessee Gas Pipeline (TGP) and Columbia Gas Transmission (TCO) serve overlapping Appalachian and Northeast markets, but the original January 2025 constraint affected only non-primary (non-firm) west-to-east flows and primary service was not interrupted, limiting practical reroute necessity.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 80 (Job 1008461) Planned Outage and Maintenance Summary
This is Revision 3 of a January 2025 planned maintenance notice for Transco Station 80 (Job 1008461) at mainline milepost 740.50, covering Hard Spot Remediation work originally scheduled February 10-15, 2025 -- now more than six months in the past. No pressure limitations or capacity outages were planned, and Transco stated it did not expect any transportation service impacts, though it reserved the right to invoke the TSB at MP 740.50 to manage south-to-north flows if adverse findings warranted it. No escalation triggers are present in this revision; the operational situation is unchanged from prior revisions.
No new market impact -- operational situation unchanged from prior revision, event is months old, and no capacity restriction was ever confirmed; market has already priced any risk associated with this constraint.
Reroute: Not applicable -- no capacity restriction was declared. In the event a future restriction were imposed at Station 80 MP 740.50, moderate reroute options exist via Southern Natural Gas and Tennessee Gas Pipeline for Southeast-bound volumes, though SNG is unmonitored in real time.
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Transco
Regional Energy Access (REA) Permit Received
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Job 1088505 MLA near Station 100 Unplanned Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Transco’s West End Lateral near MP 1819.17 Outage
Revision 3 of this Transco critical notice confirms that repairs to the West End Lateral near MP 1819.17 (Kearny - Parkway M6236, loc 9012223) were completed and the lateral was returned to service as of the ID1 cycle on January 30, 2025. The outage originally began January 20, 2025 and affected a small delivery-only lateral with an operating capacity of approximately 0.068 Bcf/d. No escalation triggers are present in this revision -- the event is fully resolved and no new operational constraint exists.
No new market impact -- operational situation is fully resolved per this revision, with the lateral returned to service; the 0.068 Bcf/d delivery point (Kearny - Parkway M6236) is confirmed available again and the market has already priced this constraint.
Reroute: Moderate: the Kearny - Parkway M6236 lateral is a small delivery point (0.068 Bcf/d operating capacity) in the Transco Zone 5/6 corridor near MP 1819.17; moot given the lateral is back in service.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Transco (Job 367383) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Leidy Line near Station 517 Maintenance January 2025
This is Revision 3 of a January/February 2025 maintenance notice for an unplanned anomaly repair on the Transco Leidy Line segment 517B10 to 517B20, west of Station 517. The notice confirms that repairs were completed and the pipeline was returned to service on 2/5/2025. This is a legacy restoration notice -- the event originated in early February 2025, over six months before the Last Updated date of 2026-08-20.
No new market impact -- this is a stale restoration notice from February 2025 confirming repairs were completed; the event has been fully resolved and priced for over 18 months.
Reroute: Not applicable -- pipeline was returned to service on 2/5/2025; no ongoing constraint exists.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
This is Revision 3 of a February 6, 2025 Transco OFO covering Zones 5 and 6 (Mid-Atlantic and Northeast), originally posted over 18 months before the Last Updated timestamp of August 20, 2026. The OFO directed shippers to maintain concurrent balance of receipts and deliveries in Zones 5 and 6, with the second phase (Due From Shipper only, 7% tolerance) running until further notice from February 10, 2025. No escalation triggers are present in this revision -- no new locations added, no force majeure, no worsening restoration timeline beyond the original 'until further notice' language already present in prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; notice is also a legacy repost of a February 2025 event with no new trading signal for current gas days.
Reroute: Limited: Transco Zones 5 and 6 serve Mid-Atlantic and Northeast markets where Tennessee Gas Pipeline (TGP) is the primary competing pipeline, but this OFO is a stale re-filing from February 2025 and reroute assessment has no current operational relevance.
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Transco
Station 116 Unplanned Compressor Unit Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Transco (Job 1077647) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Transco (Job 1077742) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
South Virginia Lateral - Mainline A Pressure Reduction
This is Revision 3 of a February 18, 2025 Transco critical notice for a pressure reduction on Mainline A of the South Virginia Lateral due to an unexpected integrity concern. The original event is now approximately 18 months old (effective date 02/18/2025 vs. last updated 2026-08-20), making this a legacy repost. No new operational information, restoration timeline, or capacity figures are provided in this revision. Nine delivery locations in southern Virginia and North Carolina are listed as affected.
No new market impact -- operational situation unchanged from prior revision; this is a legacy repost of a February 2025 event and the market has already priced this constraint.
Reroute: Moderate: Transco is the dominant pipeline in this Southeast corridor, but Southern Natural Gas (SNG) serves overlapping Virginia and Carolina markets; SNG condition is unmonitored so full offset cannot be confirmed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - South Virginia Lateral - Mainline A Pressure Reduction
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Terminate Operational Flow Order - Imbalance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of an unplanned Transco Mainline B outage near MP 438.84 (Sabine River area) originally declared in September 2024. The revision, posted February 25, 2025, updated the return-to-service date from February 18 to March 21, 2025, citing challenging construction site conditions. No new operational information is present beyond a date extension already known to the market; the restoration was anticipated to have occurred by late March 2025, well before this notice was last updated on 2026-08-20.
No new market impact -- this is a stale revision of a February 2025 maintenance update on an outage originating in September 2024, with a stated restoration target of March 21, 2025; the 0.450 Bcf/d south-to-north capacity restriction has long since resolved and the market priced this constraint at the time of original notice.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (unmonitored) provides partial Gulf Coast/Southeast alternative capacity, but is significantly smaller. For the original outage period, capacity constraints were managed within the Transco system via TSB at MP 438.84.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
This is Revision 3 of a Transco Imbalance OFO originally posted February 27, 2025, covering Zones 5 and 6 for three gas days (March 1-4, 2025). The OFO required shippers to maintain concurrent balance of receipts and deliveries with a 10% tolerance, with penalties under Tariff Section 52. No escalation triggers are present in this revision -- no new locations, no force majeure, no worsened timeline, and the event period has long since passed.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Moderate: Tennessee Gas Pipeline (TGP) serves overlapping Northeast markets alongside Transco Zones 5/6; however, this event is from February 2025 and any reroute decisions were made at that time.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - 35B40 - Station 40 (Job 933925) 2025 Planned Outage and Maintenance Summary
This is Revision 3 of a Transco planned maintenance notice (Job 933925) for a line outage on Mainline B between MP 372.85 and MP 389.20 (Station 40 area), associated with Transco's Hard Spot Remediation Program. The notice explicitly states the maintenance is now completed. No capacity impact remains.
No new market impact -- maintenance at Transco Mainline B MP 372.85-389.20 is confirmed complete per this revision, operational situation is resolved and the market has already priced this constraint.
Reroute: Moot -- maintenance is complete and no active constraint exists. During the outage period, Transco Southeast segment alternatives via SNG would have provided limited partial reroute given SNG's smaller capacity relative to Transco.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Sabine River MLB Outage - Unplanned Maintenance
This is Revision 3 of an unplanned Transco Mainline B outage near MP 438.84 (Sabine River area), originally declared in September 2024. The update moves the anticipated return-to-service date from February 18, 2025 to March 31, 2025, reflecting ongoing challenging site conditions. South-to-north capacity through this location remains limited to 450 MDth/d (0.450 Bcf/d); north-to-south flows are unaffected. No new escalation triggers are present beyond the timeline extension -- the restoration date has worsened, but this is a legacy event originally priced in September 2024 and the market has already absorbed multiple revisions.
No new market impact beyond a further delay in restoration already flagged in prior revisions -- the 0.450 Bcf/d south-to-north cap at Transco MP 438.84 has been the operative constraint since at least September 2024, and any Transco Zone 4 basis widening associated with this outage was priced long ago; the slip to March 31, 2025 extends a known constraint rather than introducing a new one.
Reroute: Limited: Southern Natural Gas serves overlapping Southeast markets and provides partial capacity relief in principle, but SNG is unmonitored and its real-time availability cannot be confirmed; Transco is the dominant Southeast mainline and the 0.450 Bcf/d cap materially limits northbound throughput with no direct bypass of the constrained segment.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update 2 -Station 80 Unplanned Compressor Unit Outage
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 03/18/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 03/18/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 03/19/2025 ID1 Cycle and until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Completed - Sabine River MLB Outage - Unplanned Maintenance
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 03/19/2025 ID1 Cycle and until further notice- LIFTED
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Capacity Update - Station 40
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Changed for 04/08/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Changed for 04/18/2025 Timely Cycle and until further notice.
This is Revision 3 of a Transco Over/Under Performance notice originally posted April 17, 2025, restricting the Poole Road delivery location (Meter M4585, Loc 9002300) to a confirmation quantity of 50,000 MMBtu/day (0.050 Bcf/d) effective the timely cycle for April 18, 2025 and until further notice. No escalation triggers are present in this revision -- no force majeure, no firm curtailments, no new locations added, and no worsened restoration language relative to prior revisions. The restriction applies to a single small delivery meter and has no system-level significance. The live capacity data is from August 18, 2026 -- two days behind today -- and predates this notice's original April 2025 effective date by over 16 months, so it provides no corroboration.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: High: Poole Road is a single small delivery meter at 0.050 Bcf/d; shippers have ample Transco mainline capacity and alternative delivery points available to redirect volumes.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Changed for 04/18/2025 ID1 Cycle and until further notice.
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Changed for 04/21/2025 Timely Cycle and until further notice.
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 04/20/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 04/21/2025 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 04/22/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 04/23/2025 ID1 Cycle and until further notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Transco (Job 1077647) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations changed for 04/27/2025 ID1 Cycle and until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations changed for 04/27/2025 ID1 Cycle and until further notice
This is Revision 3 of a Transco Over/Under Performance notice originally posted 04/28/2025, now reposted on 08/20/2026 with no new operational information. The notice increases the confirmation quantity available at Poole Road (Location 9002300, Meter M4585) by 80,000 MMBtu/d (0.080 Bcf/d) effective ID1 cycle 04/28/2025 and until further notice. No escalation triggers are present; this is a stale revision with no change to the underlying operational situation.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Not applicable -- this is a small delivery tap confirmation increase (0.080 Bcf/d) on Transco with no supply disruption; Transco's south-to-north mainline and interconnects with SNG and TGP provide ample alternative routing in any event.
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Transco
Location Confirmations changed for 04/28/2025 ID1 Cycle and until further notice
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
MLD Immediate Anomaly Dig
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - MLD Immediate Anomaly Dig (Completed)
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Job #160129 Milltown 2025 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations changed for 06/10/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 65 – Unplanned Maintenance 2025
This is Revision 3 of a June 2025 unplanned maintenance notice for Transco Station 65 (mainline milepost 626.55), originally posted June 10, 2025. The notice describes a 5-day outage limiting south-to-north capacity to 1.430 Bcf/d (design capacity 3.242 Bcf/d) with 5-10% cuts to primary firm shippers. No escalation triggers are present in this revision -- no new locations, no force majeure, no worsened timeline, no curtailment escalation beyond the original notice.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Southern Natural Gas (SNG) provides partial alternative capacity in the Southeast corridor, but SNG is unmonitored and significantly smaller than Transco; full offset of a 1.812 Bcf/d throughput reduction at Station 65 is unlikely.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
This is Revision 3 of Transco's 2025 Major Construction and Maintenance Projects notice, originally posted June 12, 2025. The notice provides no new curtailment details, no specific capacity volumes, and no named locations -- it directs recipients to an external link for the updated maintenance schedule. No escalation triggers are present in this revision.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Not applicable -- no specific capacity constraint or segment restriction is identified in this notice.
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Transco
UPDATE Station 65 – Unplanned Maintenance 2025
This is Revision 3 of a June 2025 unplanned maintenance notice for Transco Station 65 (mainline milepost 626.55, south-to-north flow). The notice text states repairs were completed June 13, 2025 with return to service June 14, 2025 -- the event has been fully resolved for over 14 months as of this posting. No escalation triggers are present; this is a stale revision of a long-closed outage. During the constraint, south-to-north capacity was limited to 1.430 Bcf/d (design capacity 3.242 Bcf/d), with an estimated 5-10% cut to primary firm shippers based on historical utilization.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the Station 65 outage resolved June 14, 2025 and this revision carries no new operational information.
Reroute: Moot: Station 65 returned to service June 14, 2025 per the notice text. For reference, during the live constraint, partial reroute via Southern Natural Gas (SNG, unmonitored) would have been the primary alternative for Southeast-bound volumes, though SNG capacity is significantly smaller than Transco.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Job #1071388 Station 60 ILI Runs Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations changed for 06/21/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 50 (Job 933926) CS Outage 2025 Planned Outage and Maintenance Summary
This is Revision 3 of a planned maintenance notice for Compressor Station 50 (MP 517.25, Location 9012563) on Transco, originally posted June 24, 2025 for a July 17-31, 2025 outage window -- an event now roughly 3-4 weeks in the past relative to the notice's own schedule and over a year behind the Last Updated date of August 20, 2026. The notice described a partial CS outage limiting south-to-north primary-firm capacity from 2,119 MDth/d (2.119 Bcf/d design) to 1,575 MDth/d (1.575 Bcf/d available), a reduction of approximately 544 MDth/d (0.544 Bcf/d), with 0-15% estimated cuts to primary firm. No escalation triggers are present in this revision; no new operational information has been added.
No new market impact -- operational situation unchanged from prior revision; the July 2025 CS 50 outage (0.544 Bcf/d south-to-north reduction) has long since concluded and the market priced this constraint at the original effective date.
Reroute: Moderate: during the original July 2025 maintenance period, Southern Natural Gas served overlapping Southeast corridors and some volumes could be rerouted via SNG or Tennessee Gas Pipeline, though SNG is unmonitored and spare capacity was not confirmed. This is now a moot point as the outage window has passed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations changed for 07/13/2025 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance Station 115 MU3 Planned Outage and Maintenance Summary
This is Revision 3 of a notice originally posted July 29, 2025 for unplanned maintenance on Transco Station 115 Main Unit 3 at Mainline MP 1031, reducing south-to-north available capacity from 4,524 Mdt/d design to 3,450 Mdt/d total quantity available (a reduction of approximately 1,074 Mdt/d or 1.074 Bcf/d). No escalation triggers are present in this revision -- no force majeure, no firm curtailments beyond the original 0-5% primary impact estimate, no new locations added, and restoration remains TBD as it was in prior revisions. The notice has been active since July 29, 2025 and the market has had ample time to price this constraint.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the 1.074 Bcf/d south-to-north reduction at MP 1031 affects only non-primary service with primary firm cuts estimated at 0-5%, and live capacity data for MAINLINE MP 1031 TSB S to N (loc 9013083) as of 2026-08-18 shows 3.34 Bcf/d scheduled against 4.58 Bcf/d operating capacity (72.9% utilized, 27.1% headroom), indicating the system is absorbing the constraint without firm service stress.
Reroute: Limited to Moderate: Southern Natural Gas and Gulf South serve overlapping Southeast corridors and could absorb non-firm volumes displaced by this Station 115 constraint; primary firm shippers face minimal impact (0-5% estimated cuts) and are unlikely to need rerouting.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Maintenance Station 115 MU3 Planned Outage and Maintenance Summary
Transco is performing unplanned maintenance at Station 115 (MP 1007, South Carolina area) due to equipment failure on Main Unit 3, effective July 29, 2025 through an anticipated September 12, 2025 (TBD). The TSB at Mainline MP 1031 limits southbound-to-northbound capacity to 3,450 Mdt/d (3.450 Bcf/d) against a design capacity of 4,524 Mdt/d (4.524 Bcf/d), a reduction of approximately 1.074 Bcf/d. This is Revision 3 of the notice; impacts to primary firm service remain estimated at 0-5%, with non-primary service (NSRP, secondary FT, IT) significantly curtailed for south-to-north flows.
Transco Station 115 MU3 unplanned outage removes roughly 1.074 Bcf/d of south-to-north non-primary capacity through at least September 12; primary firm cuts remain 0-5% per pipeline guidance, but non-firm and secondary service shippers face real curtailment risk, supporting Transco Zone 4 and Zone 5 basis firming vs Henry Hub -- live capacity data (2026-08-18, 2-day lag) shows MAINLINE MP 1031 TSB S to N at 3.34 Bcf/d scheduled of 4.58 Bcf/d operating (72.9% utilized, 27.1% headroom), which predates the current constraint period and may not reflect actual current conditions.
Reroute: Limited: Southern Natural Gas (SNG) serves overlapping Southeast corridors but is unmonitored with unknown spare capacity, and is significantly smaller than Transco; no fully reliable alternative exists for south-to-north non-primary shippers on this segment.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Transco issued a Revision 3 system operating conditions notice on 08/22/2025 warning shippers of limited flexibility to manage imbalances during a mild-weather weekend period. The notice strongly encourages shippers to avoid daily 'Due To' (long) imbalances and warns that an OFO may be issued absent voluntary compliance. No capacity restriction, force majeure, or curtailment has been declared; this is a pre-OFO advisory.
No new market impact -- operational situation unchanged from prior revision; this is a pre-OFO imbalance warning during mild demand conditions, with no capacity figure or forced curtailment stated, and the market has already priced this advisory.
Reroute: Not applicable -- no capacity constraint has been declared; notice is a voluntary imbalance management advisory. If an OFO is subsequently issued, Southern Natural Gas provides partial Southeast reroute but SNG capacity is significantly smaller than Transco.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 35 (Job 240432) 2025 Planned Outage and Maintenance Summary
This is Revision 3 of a planned maintenance notice originally posted 09/03/2025. Transco is performing pig runs at Station 35 (milepost 327.27, south-to-north) on five discrete single-day windows: 10/14, 10/16, 10/21, 10/23, and 10/28. Each pig run day reduces available S-to-N capacity at location 9011644 from 708,995 Dt/d design capacity to 250,000 Dt/d (approximately 0.250 Bcf/d available), representing a loss of roughly 0.459 Bcf/d and cutting primary firm throughput to 35% of design capacity with 60-65% shipper impact. No escalation triggers are present in this revision relative to prior revisions.
No new market impact -- operational situation unchanged from prior revision; the five single-day pig run dates and the 0.459 Bcf/d S-to-N capacity reduction at Station 35 were already disclosed at original posting, market has already priced this constraint.
Reroute: Limited: Transco is the dominant pipeline in this corridor; Southern Natural Gas (unmonitored) provides some partial Southeast alternative capacity, but SNG is significantly smaller than Transco and its current condition cannot be verified. Partial reroute is possible but unlikely to fully offset the 0.459 Bcf/d single-day reductions.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Unplanned McMullen Lateral Outage 2025 Planned Outage and Maintenance Summary
This is Revision 3 of a notice originally posted September 8, 2025 regarding an unplanned integrity-driven pressure restriction on a portion of the McMullen lateral between MP 32.65 and MP 52.71 on Transco. The event originally ran September 9-25, 2025 and is now nearly a year old relative to the Last Updated date of August 20, 2026. No escalation triggers are present in this revision; the operational situation appears unchanged from the original posting. The McMullen lateral carries a design capacity of 0.095 Bcf/d bidirectionally, with total available quantity reduced to zero in both directions during the restriction period.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying event dates to September 2025 and the 0.095 Bcf/d McMullen lateral restriction is immaterial to Transco mainline or Zone 4 basis at current system loading.
Reroute: Moderate: the McMullen lateral is a small Transco lateral; Transco mainline and interconnecting Gulf Coast pipelines (Gulf South, TGC) provide alternative routing for affected volumes. The small scale (0.095 Bcf/d) limits market significance.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned McMullen Lateral Outage 2025 Planned Outage and Maintenance Summary
Revision 3 of this notice confirms that work on the McMullen Lateral (Job #1071403) has been completed and the pipeline was returned to service by ID1 on September 17, 2025 -- eight days into a planned outage that had an original completion date of September 25, 2025. The constraint had restricted 0.095 Bcf/d (95,000 Dt/d) of capacity in both east-to-west and west-to-east directions between MP 32.65 and MP 52.71. This revision carries no new operational information; it is a restoration confirmation for an event that resolved nearly a year before this repost date of August 20, 2026.
No new market impact -- operational situation resolved on September 17, 2025, and the market has long since priced this constraint; this revision is a stale repost with no current trading signal.
Reroute: Moot: the McMullen Lateral outage affecting 0.095 Bcf/d has been resolved. During the outage, Transco mainline capacity offered partial workaround given the lateral's relatively small design capacity relative to the mainline.
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Transco
Update - Market and Production Constraints
This is Revision 3 of Transco notice 16052846, a daily Market and Production Constraints update originally posted September 17, 2025 -- nearly 11 months prior to the Last Updated timestamp of August 20, 2026. No escalation triggers are present: no force majeure, no firm curtailment escalation, no new locations added, no worsened restoration timeline, and no OFO declarations. The notice is a routine daily constraint table repost with no new operational content relative to prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Not applicable -- stale revision with no new constraint identified. Transco Southeast (Zone 4) constraints would have SNG as a partial alternative, though SNG real-time data is unmonitored; Northeast Zone 5/6 constraints would have limited reroute via Tennessee Gas Pipeline.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 50 (Job 1071389) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance Station 70 – Main Unit 7
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 35 (Job 240432) 2025 Planned Outage and Maintenance Summary
This is Revision 3 of a planned maintenance notice originally posted September 30, 2025, covering pig run assessments at Transco Station 35 (mainline milepost 327.27, south-to-north flow) on seven discrete dates between October 14-28, 2025. The notice caps available capacity at 250,000 Dt/d (0.250 Bcf/d) against a design capacity of 708,995 Dt/d (0.709 Bcf/d), representing roughly 35% availability and potential 60-65% primary firm cuts. No escalation triggers are present in this revision -- the affected location, capacity figures, and schedule are unchanged from prior revisions, and the underlying outage dates are now approximately 10 months in the past.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying October 2025 pig run schedule at Station 35 is long past and this revision carries no new trading signal.
Reroute: Moderate: Southern Natural Gas (SNG) provides partial alternative capacity in the Southeast corridor overlapping Transco Zone 4, though SNG is significantly smaller than Transco; the event dates are historical and reroute is moot.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Unplanned Maintenance Station 70 – Main Unit 7
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/04/2025 ID2 Cycle
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/06/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/06/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 10/11/2025 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Restriction Lifted for 10/12/2025 ID1 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 50 (Job 1071378) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance SELA Lateral Offshore
This is Revision 3 of a Transco unplanned maintenance notice originally posted October 21, 2025, affecting two offshore Southeast Louisiana Lateral (SELA) receipt locations -- Ship Shoal 28D (Loc 1000033) and Ship Shoal 72J (Loc 1000035) -- with no restoration date provided. No escalation triggers are present in this revision: no new locations added, no force majeure declared, no capacity volume stated, no curtailment escalation, and no worsened timeline language beyond the original TBD. Live capacity data for SELA MP 85.94 and MP 85.93 show zero scheduled and zero operating capacity as of 2026-08-18 (2 days prior to this notice), consistent with ongoing shut-in and suggesting the market has long since absorbed this constraint.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: the two affected locations are offshore Gulf of Mexico receipt points on the SELA lateral; no alternative offshore gathering path exists for these specific platform volumes, though their combined contribution to Transco mainline throughput appears negligible given zero scheduled flow on the SELA segments in the most recent capacity data.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 35 (Job 240432) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 35 (Job 240432) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Completed - Unplanned Maintenance SELA Lateral Offshore
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance at Station 195 Outage and Maintenance Summary
This is Revision 3 of an unplanned maintenance notice for Transco Station 195 (MP 1674, N-to-S flow) originally posted October 31, 2025, with the outage occurring November 5-6, 2025 -- nearly 10 months before this revision's Last Updated date of August 20, 2026. No escalation triggers are present: the event is a completed 2-day planned outage with a known start and end date, no force majeure, no firm curtailment escalation, and no worsened restoration timeline. The notice states design capacity of 2,772 Mdt/d with 1,900 Mdt/d primary firm available (68%), implying a cut of approximately 872 MDth/d (0.872 Bcf/d) for two days, affecting N-to-S transportation priorities with a 7-12% cut to shippers based on historical utilization.
No new market impact -- this is a stale Revision 3 of a November 2025 outage that has long since concluded; market has already priced this constraint and no new trading signal exists.
Reroute: Limited: Transco is the dominant Southeast-to-Gulf-Coast backhaul pipe; SNG provides partial overlapping capacity in the Southeast, but as this outage is already completed, reroute is moot.
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Transco
Unplanned Maintenance at Station 195 Outage and Maintenance Summary
This is Revision 3 of a Transco unplanned maintenance notice originally posted October 31, 2025, concerning Station 195 MP 1674 (N-to-S flow direction), with a revised work window of November 5-6, 2025. The notice restricted all transportation priorities moving north to south through this location, with design capacity of 2.772 Bcf/d (2,772 Mdt/d) and total primary firm available quantity of 1.900 Bcf/d (1,900 Mdt/d), representing a restriction of approximately 0.872 Bcf/d or 32% of design capacity. No escalation triggers are present in this revision -- the event is now more than 30 days old and is a legacy repost with no new operational information.
No new market impact -- this is a stale Revision 3 of a November 2025 outage at Transco Station 195 MP 1674; the 0.872 Bcf/d N-to-S restriction was priced at the original effective date and the market has already fully absorbed this constraint.
Reroute: Moderate: Southern Natural Gas serves overlapping Southeast markets and Tennessee Gas Pipeline (TGP) provides partial alternative capacity for north-to-south flows in the region, though SNG real-time conditions are unmonitored. The event is historical and reroute assessment is moot.
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Transco
Update - Station 35 (Job 240432) 2025 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 11/08/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance at Puddlefield Meter Station Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance at Puddlefield Meter Station Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance at Puddlefield Meter Station Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance at Puddlefield Meter Station Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
December 2025 Maintenance Jobs Reminder
This is Revision 3 of a November 2025 reminder notice for planned December 2025 maintenance jobs at Transco Station 50, covering four specific dates (December 9, 11, 16, and 18, 2025). The notice was last updated August 20, 2026 -- more than eight months after the maintenance dates referenced -- making this a stale revision of an event that has already occurred. No new operational information is present and no escalation triggers are met.
No new market impact -- this is a stale revision of a December 2025 maintenance reminder posted in November 2025; the underlying Station 50 jobs occurred over eight months ago and any market impact was priced at the original effective date.
Reroute: Not applicable -- this is a historical maintenance reminder with no current operational impact; Transco's Southeast segment has limited reroute via Southern Natural Gas in any case.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance Station 60 Outage 2025
This is Revision 3 of the December 3, 2025 unplanned maintenance notice for Transco Mainline B between the 60B10 and 65B0 valves (MP 602.90 to MP 626.51). The original event reduced southbound-to-northbound capacity at the Station 60 TSB from a design capacity of 2.133 Bcf/d to 1.300 Bcf/d available (a reduction of approximately 0.833 Bcf/d), with 15-33% potential cuts to primary firm service. No escalation triggers are present in this revision -- no new locations added, no force majeure declared, no worsening timeline language -- making this a stale revision with no new operational information.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Transco is the dominant pipeline in this Southeast-to-Mid-Atlantic corridor; Southern Natural Gas (SNG, unmonitored) provides partial real-world alternative capacity but is significantly smaller and its current availability cannot be confirmed from live data.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 / 2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Unplanned Maintenance Station 60 Outage 2025
This is Revision 3 of the Station 60 unplanned maintenance notice, originally posted December 5, 2025 -- approximately 8.5 months before this Last Updated timestamp of August 20, 2026. The notice states that repair work between valves 60B10 and 65B0 on Mainline B (MP 602.90 to MP 626.51) was expected to be completed by December 9, 2025, restoring available capacity back to pre-outage levels effective that date. The constraint ran from December 3 to approximately December 8, 2025 (6 days), reducing available throughput from a design capacity of 2,133 MDth/d to 1,300 MDth/d (a reduction of approximately 833 MDth/d, or 0.833 Bcf/d), with primary firm cuts estimated at 15-33%. No new operational information is introduced in this revision beyond the December 9 restoration date.
No new market impact -- operational situation is resolved per this revision with restoration confirmed by December 9, 2025; market has already priced this constraint months ago and the 0.833 Bcf/d southbound-to-northbound restriction at Station 60 is no longer active.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Southern Natural Gas (SNG, unmonitored) provides partial alternative capacity in overlapping Southeast corridors, but SNG capacity is significantly smaller than Transco and its real-time condition cannot be verified. Tennessee Gas Pipeline (TGP, monitored) serves overlapping Northeast markets and would have been the primary reroute option during the outage period.
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Transco
Update - Unplanned Maintenance Station 60 Outage 2025
This is Revision 3 of the Station 60 unplanned mainline B maintenance notice, and it announces full restoration: Transco has completed all integrity assessment work between valves 60B10 and 65B0 and lifted the capacity constraint effective immediately ID1 December 7, 2025. The outage ran December 3-7 (approximately 4 days), during which design capacity of 2.133 Bcf/d was restricted to 1.300 Bcf/d -- a loss of roughly 0.833 Bcf/d -- with 15-33% potential cuts to primary firm shippers. No new operational constraint remains; this revision is a closure notice.
No new market impact -- constraint at Compressor Station 60 (MP 588.62) was fully lifted December 7, 2025; the 0.833 Bcf/d south-to-north restriction is resolved and the market priced this event at the original December 3 effective date.
Reroute: Moot: the constraint has been fully lifted as of this revision. During the outage, reroute was limited -- Southern Natural Gas serves overlapping Southeast markets but carries significantly less capacity than Transco, and Tennessee Gas Pipeline provides partial northeast alternative routing.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2025 / 2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2025 / 2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 50 (Job 1071389) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance Compressor Station 517 MU5 Outage - Notice of Force Majeure Event
Transco declared force majeure at Compressor Station 517 Main Unit 5 (Leidy Line, MP 127.96) due to equipment failure, limiting primary firm transportation west-to-east through Station 517 effective December 14, 2025 ID2 cycle. Available primary firm capacity is restricted to 2,375 MDth/d (2.375 Bcf/d), representing 30-40% potential cuts to primary firm shippers based on historical utilization. Estimated return to full service was December 24, 2025 to January 1, 2026, with no confirmed end date posted; this is Revision 3 of a notice originally posted December 14, 2025, and the event dates are approximately 8 months prior to the Last Updated timestamp of August 20, 2026, suggesting this is a legacy repost or administrative revision of an event that resolved in late 2025.
Legacy repost or administrative revision of a December 2025 force majeure event -- Transco CS 517 MU5 restricted 2.375 Bcf/d of primary firm west-to-east capacity with 30-40% firm cuts; market impact was priced at the original December 14, 2025 effective date and no new trading signal applies.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline and Southern Natural Gas (unmonitored) provides partial alternative capacity in overlapping Southeast corridors, but cannot fully offset primary firm curtailments of this magnitude; Tennessee Gas Pipeline (TGP) serves similar Northeast markets but competing capacity may have been tight during the December 2025 winter period.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 12/17/2025 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 517 MU5 Outage - Force Majeure Event
This is Revision 3 of a force majeure notice originally posted December 13, 2025, covering the Main Unit 5 outage at Transco Station 517 on the Leidy Line (MP 127.96). The notice carries a TSB limiting primary firm capacity to 2,375 MDth/d (2.375 Bcf/d) west-to-east with estimated 18-26% cuts to primary firm shippers. No new escalation triggers are present in this revision -- the restoration target of December 27, 2025 was already established, the affected location is unchanged, and no new curtailment escalation language appears. This revision conveys no new operational information beyond confirming the prior status.
No new market impact -- operational situation unchanged from prior revision; this Transco Station 517 MU5 force majeure with a 2.375 Bcf/d TSB limitation was originally effective December 13, 2025, and the market has already priced this constraint.
Reroute: Limited: Transco is the dominant Southeast-to-Northeast pipeline; Tennessee Gas Pipeline (TGP) provides partial alternative capacity for some Northeast-bound volumes, but Leidy Line is a key Appalachian receipt and northbound path with limited bypass for affected shippers.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 517 MU5 Outage - Force Majeure Event
Transco has terminated the force majeure event at Compressor Station 517 Main Unit 5, effective ID1 December 24, 2025. All unplanned maintenance work is complete and the constraint through the TSB has been lifted, with available capacities returning to pre-outage levels. This is Revision 3 of the notice and constitutes a restoration/termination filing -- no capacity loss remains active.
No new market impact -- this revision terminates the Station 517 MU5 force majeure and restores previously constrained TSB capacity; the constraint was priced at its original effective date of December 24, 2025 and this notice carries no new trading signal.
Reroute: Not applicable -- the force majeure has been terminated and capacity restored. No reroute assessment required.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
January 2026 Maintenance Jobs Reminder
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location Confirmations Being Reduced for 01/08/2026 ID2 Cycle
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
This is Revision 3 of a January 15, 2026 Transco System Operating Conditions critical notice issued ahead of a cold weather event beginning January 18, 2026. The notice invoked Transco's Weather Resiliency Plan, suspended retroactive nominations system-wide, and requested shippers flow gas within contractual entitlements on a uniform hourly basis. No escalation triggers are present in this revision -- no new force majeure, no firm curtailments, no worsened restoration timeline, and no new locations added -- making this a stale revision with no new operational information for a winter weather event now more than six months in the past.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the underlying January 2026 cold-weather tightness event is now a legacy filing with no current trading signal.
Reroute: Not applicable -- this is a stale revision of a system-wide operational alert from January 2026 with no active capacity constraint identified; Southern Natural Gas (unmonitored) and Tennessee Gas Pipeline serve overlapping Southeast corridors but no reroute assessment is warranted for a resolved historical event.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Station 50 (Job 1071389) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 35 (Job 136501) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Station 35 (Job 136501) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Locations being reduced for gas day 1/25/26
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Non-Tariff Quality Gas at Live Oak Karon M1345 (McMullen)
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Transco issued an Operational Flow Order for imbalance management effective February 3, 2026 at 9:00 AM CT, directed at Zone 6 shippers with a 'Due From Shipper' imbalance condition lasting until further notice; a prior OFO covering Zones 4, 5, and 6 ran for approximately 4 days beginning January 30. This is Revision 3 of notice 16519969, which supersedes prior notice 16499771. The OFO carries a minimum $50/dt/day penalty for shippers exceeding 5% imbalance tolerance and requires immediate operational response. Live capacity data from 2026-08-18 (2 days behind the current gas day and predating this February 2026 event) shows Zone 6 Segment HB and CS 160 at 0% headroom and CS 60 at 0% headroom, consistent with the tight system conditions that prompted this OFO, though those readings cannot be treated as current.
Transco Zone 6 OFO 'until further notice' with no end date and an active penalty regime signals ongoing line pack stress in the Mid-Atlantic and Northeast; expect bullish pressure at Transco Zone 6 N.Y. and Zone 5 basis vs Henry Hub, with tightening through the Zone 4/5 interface if the broader Zones 4-5-6 OFO from the prior revision remains in effect.
Reroute: Limited: Tennessee Gas Pipeline (TGP) is the primary competing pipeline for Northeast and Mid-Atlantic deliveries, but simultaneous winter system stress often constrains TGP as well; no full reroute exists for Zone 6 New York deliveries.
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Transco
February 2026 Maintenance Jobs Reminder
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 50 (Job 631201) Outage 2026 Planned Outage and Maintenance Summary
This is Revision 3 of a Transco planned maintenance notice for Compressor Station 50 (Job 631201), covering a partial outage of main unit 9 that was scheduled March 3-6, 2026. The outage was a 4-day planned event limiting south-to-north capacity at the TSB at mainline MP 517.23 (Station 50 West) to 1,265 MDt/d against a design capacity of 1,535 MDt/d -- a reduction of approximately 270 MDt/d (0.270 Bcf/d), or 18% of design. As of the Last Updated date of 2026-08-20, the scheduled outage window ended over five months ago and no escalation triggers are present in this revision.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint; the March 3-6 outage window expired months before this revision posted and the 0.270 Bcf/d south-to-north restriction at Station 50 is no longer active.
Reroute: Limited: Transco is the dominant pipeline in this corridor, with Southern Natural Gas (unmonitored) providing partial Southeast alternative capacity, though SNG is significantly smaller. This assessment is moot given the outage has long since concluded.
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Transco
Pipeline Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
System Operating Conditions – Location Specific
This is Revision 3 of a February 6, 2026 Transco operational alert warning of limited flexibility at the Carolina Gas Transmission delivery location (Zone 5, Loc 9003140) during periods of high system utilization. No escalation triggers are present in this revision -- no force majeure, no firm curtailments, no new locations added, and no worsened restoration timeline. The notice remains a pre-OFO voluntary compliance request with no confirmed new operational change from prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Carolina Gas Transmission is one of two major pipes into the Carolinas alongside Transco; a confirmed OFO at this delivery point would tighten Southeast Carolinas supply with partial alternatives only via SNG corridors.
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Transco
Locations being reduced for gas day 2/8/2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Station 35 Outage (Job 134423 & 838247) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Notice of Force Majeure Event - Unplanned Equipment Outage Station 115
This is Revision 3 of a Transco force majeure notice originally posted February 11, 2026, covering an unplanned equipment outage at Compressor Station 115 (mainline milepost 1007.66, South-to-North flows). The update reports improved system conditions and a capacity increase effective February 12, 2026, raising primary firm available capacity from 3,850 MDth/d to 3,950 MDth/d (versus 4,746 MDth/d design capacity), reducing potential cuts from 6-13% to 0-5%. No restoration timeline has been provided; return to service remains TBD. None of the Step 1 escalation triggers are present in this revision: no force majeure escalation, no new locations, no firm curtailment language, no worsening timeline, and capacity impact has actually improved.
No new market impact -- the operational situation at Station 115 has improved from the prior revision with primary firm available capacity increasing to 3.950 Bcf/d (0.796 Bcf/d below design), and the market has already priced this constraint from the original February 11 posting; no fresh trading signal.
Reroute: Limited: Tennessee Gas Pipeline (TGP) is the primary competing pipeline for Southeast-to-Northeast flows along this corridor, but Transco's total available primary firm capacity at 3.950 Bcf/d represents only a marginal tightening versus design, limiting the urgency of reroute considerations.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Location Confirmations Being Reduced for 2/15/2026 ID1 Cycle
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Location Confirmations Being Reduced for 2/15/2026 ID1 Cycle
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Galveston 209 SWLA Lateral Outage 2026
This is Revision 3 of an unplanned outage at the Galveston 209 facility on Transco's Southwest Louisiana lateral, originally declared February 16, 2026 -- over six months before this revision. No escalation triggers are present: no force majeure, no firm curtailments, no capacity volume stated, no worsened restoration timeline, and no new locations added. Live capacity data (2026-08-18, two days behind) shows GA 209 M1694 (loc 9000225) at 0.011 Bcf/d scheduled against 0.139 Bcf/d operating capacity with 92.3% headroom, indicating minimal current throughput at this point; the broader SWLA lateral itself shows 98.2% headroom. Operational situation appears unchanged from prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Moderate: the Southwest Louisiana lateral is one of several Transco receipt laterals in the Gulf Coast region; volumes from this point can be partially sourced via other Gulf Coast receipt interconnects on the Transco mainline, though specific shipper nominations on this lateral must be rebid.
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Transco
UPDATE - Notice of Force Majeure Event - Unplanned Equipment Outage Station 115
Transco has issued Revision 3 of Notice 16572364, terminating the force majeure event at Compressor Station 115 (MP 1007.66) effective ID2 February 17, 2026. All work has been completed and the TSB constraint has been lifted, with available capacities returning to pre-outage levels. This is a restoration notice -- the operational event is fully resolved and no capacity constraint remains active.
No new market impact -- this revision confirms termination of the Station 115 force majeure and full restoration of capacity; the constraint and any associated basis widening were priced at the original February 17, 2026 effective date and the market has already absorbed this event.
Reroute: Not applicable -- the force majeure has been terminated and capacity fully restored at Compressor Station 115.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Unplanned Galveston 209 SWLA Lateral Outage 2026
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted Revision 3 of its 2026 Major Construction and Maintenance Schedule, updating the previously filed schedule with no specific new capacity restriction stated in the notice text. The notice advises that some work may affect interruptible and secondary firm transportation availability, with additional detail to be posted prior to each activity. No escalation triggers are present -- this is a stale schedule update with no new operational information.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Not applicable -- no specific constraint or capacity restriction is identified in this notice; reroute assessment deferred to individual project notices as they are posted.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Subject: Location(s) Off Rate Notice - Underperformance
This is Revision 3 of a Transco Over/Under Performance notice originally posted 02/21/2026 -- nearly six months before the 08/20/2026 last-updated date -- flagging underperformance at the CAROLINA GAS delivery point (Location ID 9003140, Zone 5). No escalation triggers are present: no force majeure, no firm curtailments, no capacity volume stated, no worsened restoration timeline, and no new locations added. The situation is operationally unchanged from prior revisions.
No new market impact -- operational situation unchanged from prior revision, market has already priced this constraint.
Reroute: Limited: Zone 5 is in the Mid-Atlantic corridor; Transco is the dominant pipeline at this delivery point, with SNG providing partial real-world alternative capacity, though SNG is unmonitored. The underlying underperformance notice carries no stated volume, limiting reroute assessment.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update: Non-Tariff Quality Gas at Live Oak Karon M1345 (McMullen)
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco has declared the force majeure at Compressor Station 70 (MP 662, Location 9011500) resolved. Repairs to Main Unit 9 were completed and the unit returned to service; the associated TSB limitation was lifted effective the Evening Cycle for Gas Day August 16, 2026. This is Revision 3 of the original notice and represents a full restoration, not an ongoing constraint.
No new market impact -- force majeure at Station 70 is resolved as of Gas Day August 16 Evening Cycle; live capacity data (2026-08-18 post) shows Station 70 (loc 9011500) at 77.9% utilization with 0.739 Bcf/d of headroom, consistent with the restoration, and no new trading signal exists.
Reroute: Not applicable -- the constraint has been lifted and Station 70 is back in service.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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SEV 3/5
Transco Revision 3 of its Market and Production Constraints notice (original posted 08/17/2026, effective 08/18/2026) details multiple active TSB constraints across the system. The most binding constraints are Compressor Station 160 (Zone 5, 1,726 Mdt/d available, 0.0% headroom per live data), Central Penn Line South N-to-S MP 1.0 (Zone 6, 2,093 Mdt/d available but live data shows 99.7% utilization at 0.3% headroom), SELA laterals (both directions at 0 available), TSB MP 1412.98 to MP 1369.45 (0 available, 100% utilization), and Compressor Station 60 MP 588.62 (200 Mdt/d NSRP only, 100% utilization on primary). HBLV swing capacity is at 0 or near-0 for Zones 2 through 6, indicating the system has no no-notice swing cushion available. This is a revision with escalation triggers present: Compressor Station 60 and multiple Zone 5/6 TSBs are at 0% headroom with primary firm restricted, and the SELA segment shows zero capacity in both directions at PRIMARY priority.
Transco Zone 5/6 Mid-Atlantic and Northeast capacity is severely constrained with CS 160 at 0.0% headroom (1.73 Bcf/d scheduled against full operating capacity) and Central Penn Line South at 99.7% utilization; simultaneously CS 60 (Zone 3, 1.93 Bcf/d, 100% utilized) restricts southbound Gulf Coast receipts, and SELA laterals show zero PRIMARY capacity in both directions -- expect bullish pressure at Transco Zone 5 and Zone 6 basis versus Henry Hub, with the SELA/Gulf Coast zones facing mild bearish pressure as southbound throughput is saturated and HBLV swing is exhausted across Zones 2-6.
Reroute: Limited: Tennessee Gas Pipeline (TGP) provides partial reroute for Northeast and Southeast volumes, but Transco is the dominant pipeline in these corridors and TGP lacks equivalent capacity in Zone 5/6 markets; Southern Natural Gas (unmonitored) could theoretically absorb some Southeast volumes, but SNG real-time conditions are unknown.
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Transco
Revised- Market and Production Constraints
Transco has posted Revision 3 of its Market and Production Constraints notice effective August 19, 2026, listing multiple active TSB and maintenance constraints across the system. The most binding constraints are at Compressor Station 160 (Zone 5, 1,726 Mdt/d available, 0% headroom per live data), Central Penn Line South N-to-S MP 1.0 (Zone 6, 2,093 Mdt/d available, 0.3% headroom), SELA N-to-S and S-to-N MP 85.93/94 (Zone 3, 0 Mdt/d available), and TSB MP 1412.98 to 1369.45 (Zone 5, 0 Mdt/d available, 100% utilized per live data). HBLV swing availability is zero across Zones 2 through 6, signaling system-wide tightness with no operational flexibility for non-firm or interruptible customers in those zones.
Live data corroborates multiple fully saturated northbound and southbound segments on Transco, including CS 160 and TSB MP 1412.98-1369.45 at 100% utilization and CS 60 at 100% utilization (1.93 Bcf/d scheduled); expect widening basis at Transco Zone 5/6 Mid-Atlantic and Northeast delivery points versus Henry Hub, with potential softness in Zone 3/4 Southeast as southbound NSRP and secondary capacity remains constrained at near-zero availability.
Reroute: Limited: Tennessee Gas Pipeline (TGP) provides partial alternative for Northeast and Mid-Atlantic deliveries, but simultaneous tightness across multiple Transco zones and zero HBLV swing in Zones 2-6 means TGP cannot fully absorb displaced volumes. Southern Natural Gas (unmonitored) provides partial Southeast alternative but with unknown current capacity.
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Transco
System Operating Conditions
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance - Bobcat Meter Station # 4609/3609
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update on Unplanned Maintenance - Bobcat Meter Station # 4609/3609
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Unplanned Maintenance – Station 17/Sinton Meter Station 2026
Transco posted Revision 3 of this unplanned maintenance notice for Compressor Station 17 in south Texas, with the capacity restriction at Sinton Meter Station (loc 9010299) scheduled for one day only -- August 25, 2026. Available capacity at Sinton M4669 will be limited to 100,000 Mdt/d (0.100 Bcf/d) on that date. No escalation triggers are present in this revision; the event scope and duration are unchanged from prior revisions.
No new market impact -- operational situation unchanged from prior revision, with a single-day 0.100 Bcf/d delivery restriction at Sinton M4669 on August 25 that is too small and localized to move Transco Zone 4 or Henry Hub basis materially; market has already priced this constraint.
Reroute: Moderate: Sinton M4669 is a delivery point in south Texas with access to intrastate alternatives; shippers with flexibility can likely source volumes via intrastate Texas pipelines for the single-day restriction.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Updated - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Pipeline Conditions
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location(s) Off Rate Notice - Underperformance
Transco issued a critical underperformance notice effective 08/19/2026 for a single delivery location, Poole Rd (Location ID 9002300), in Zone 1. No specific volume loss is stated. Transco warned that if performance does not improve, scheduled volumes may be curtailed and a Location Specific OFO could follow with limited advance notice.
Single Zone 1 delivery point underperformance with no stated capacity volume; watch for escalation to a Location Specific OFO, but current impact on Henry Hub or Transco Zone 4 basis is negligible absent further action.
Reroute: Unclear: reroute depends on the specific end-use customer and whether alternative Transco lateral taps or interconnects serve the Poole Rd delivery area; no system-level reroute concern at this stage.
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SEV 1/5
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Transco
Update - Market and Production Constraints
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Transco
2026 Major Construction and Maintenance Projects
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Transco
Update: Job 327549 & 477378 Mainline B & Station 155 2026 Planned Outage and Maintenance Summary
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Transco
2026 Major Construction and Maintenance Projects
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Transco
Update - Market and Production Constraints
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Transco
Pipeline Conditions
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Transco has posted a Critical constraint update effective August 12, 2026, reflecting capacity restrictions across multiple Throughput Section Boundary locations spanning Zones 2 through 6. Key binding constraints include SELA (Zone 3, 0 available both directions), Compressor Station 160 Zone 5 (1,726 Mdt/d available, 0.0% headroom per live data), TSB MP 1412.98-1369.45 Zone 5 (0 NSRP available, confirmed at 100% utilization), Central Penn Line South Zone 6 (0 Secondary available, confirmed at 100% utilization), and an unplanned outage at Compressor Station 70 MP 662 Zone 4 (2,479 Mdt/d available). HBLV swing capacity is exhausted at Zones 2 through 6 with 0 available, indicating the system has no no-notice swing buffer across most of the mainline. Note that the live capacity data is 2 days old (reflecting 2026-08-09) and may not yet capture the full extent of the August 12 restrictions.
Multiple simultaneous binding TSB constraints on Transco from Zone 3 through Zone 6, with Compressor Station 160, Central Penn South, and Zone 4/6 HBLV segments all at zero headroom per the most recent available data; Transco Zone 4 basis has been running +0.715 vs Henry Hub as of 2026-08-07 and northbound delivery constraints into Zones 5-6 risk further Zone 5/6 basis widening while Southeast receipt-side restrictions at SELA (Zone 3, 0 available) and CS 70 (Zone 4, unplanned, only 7.1% headroom in prior data) add upward pressure across Mid-Atlantic and Northeast delivery markets.
Reroute: Limited: Southern Natural Gas (SNG) provides partial real-world alternative capacity for Southeast segments but is unmonitored and its current condition cannot be verified; Tennessee Gas Pipeline (TGP) serves overlapping Northeast markets but simultaneous system stress on Transco of this multi-zone breadth is unlikely to be fully offset by TGP alone, particularly for Mid-Atlantic Zone 5/6 deliveries.
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Transco
Pipeline Conditions
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order ? Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update- Job #367383 Cascade Creek Planned Outage and Maintenance Summary
Transco has posted a planned maintenance notice for the Cascade Creek meter station (Location ID 9001040) associated with Job #367383. The outage is scheduled from October 6 to October 8, 2026, lasting approximately 3 days. The location will remain available for gas scheduling during the maintenance window, suggesting limited operational disruption.
Planned single-meter maintenance at Cascade Creek with no stated capacity restriction and scheduling availability maintained throughout -- no material basis or Henry Hub price signal expected.
Reroute: High: Cascade Creek is a single bi-directional meter station on Transco; no specific capacity loss is stated and gas scheduling remains available, making reroute considerations largely moot.
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Transco
Station 33 (Job 780583) 2026 Planned Outage and Maintenance Summary
Transco has posted a planned one-day compressor station outage at Station 33 (mainline milepost 284.5) on October 27, 2026, associated with facility modifications under Job #780583. Northbound throughput will be constrained, with available capacity reduced from 709 MDt/d to 574 MDt/d (81% of design capacity), representing a 135 MDt/d (~0.135 Bcf/d) reduction. Primary firm shippers face an estimated 12-15% cut based on historical utilization.
Planned single-day Transco Station 33 constraint on October 27 removes approximately 0.135 Bcf/d of northbound capacity, expect modest bullish pressure on Southeast Transco Zone 4 basis and mild bearish signal at downstream Mid-Atlantic delivery points for that day.
Reroute: Limited: Southern Natural Gas (SNG/EGT) provides partial alternative routing for Southeast markets, but Transco is the dominant Southeast-to-Northeast pipeline and SNG capacity is significantly smaller, so full offset of the constrained volumes is unlikely.
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Transco
Station 60 MLA (Job 130950) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Transco has posted a system-wide market and production constraint notice effective August 11, 2026, covering multiple throughput section boundaries (TSBs) across Zones 2 through 6. Numerous delivery TSBs are at zero available capacity including SELA (both directions), Central Penn South, NY Bay Lateral, Mainline Milltown, and Rivervale Lateral, with HBLV swing availability also at zero across Zones 2 through 6. An unplanned maintenance constraint is active at Compressor Station 70 MP 662 (Zone 4 receipt, southbound) alongside planned maintenance at CS 160 and ML S35, indicating simultaneous pressure from both unplanned and scheduled events across the system.
Widespread Transco TSB constraints at zero available capacity across Zones 4-6 -- including SELA, Central Penn South, NY Bay Lateral, and Mainline Milltown -- signal a tightly packed system with no swing buffer (HBLV zero Zones 2-6); expect bullish pressure at Transco Zone 4 Southeast and Zone 6 NY basis versus Henry Hub, with highest risk of curtailment at secondary and interruptible service classes on August 11.
Reroute: Limited: Southern Natural Gas (SNG/EGT) provides partial alternative for Southeast Zone 4 volumes, but cannot replace Transco's scale; Tennessee Gas Pipeline offers partial Northeast/Mid-Atlantic reroute but is also frequently constrained in summer peak; no reroute exists for Florida deliveries via FGT if Transco Zone 2 SWLA lateral constraint (40 Mdt/d available) tightens further.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Notice of Force Majeure Event - Unplanned Outage Station 70 Main Unit 9
Transco declared force majeure on August 7, 2026 due to an unplanned equipment failure at Compressor Station 70 (MP 662), restricting south-to-north throughput effective ID2 8/7/2026 with no stated return-to-service date. Design capacity at the TSB is 3,344 MDth/d but available primary firm transportation is reduced to 2,479 MDth/d, implying a loss of approximately 865 MDth/d (0.865 Bcf/d) of northbound capacity. Potential shipper cuts of 0-15% on primary firm service are indicated, with major repairs anticipated before full restoration.
Transco FM at Station 70 removes approximately 0.865 Bcf/d of northbound capacity with no restoration timeline; expect bullish pressure on Transco Zone 4 and Zone 5 basis as Southeast and Mid-Atlantic shippers compete for reduced northbound scheduling space, with mild upward bias at Henry Hub given Transco's dominant role in Gulf Coast-to-Northeast flows.
Reroute: Limited: Southern Natural Gas (SNG/EGT) provides partial alternative for Southeast volumes, but SNG capacity is significantly smaller than Transco and cannot absorb a full 0.865 Bcf/d displacement; Tennessee Gas Pipeline serves overlapping Northeast markets but may also face summer throughput constraints, leaving meaningful volumes without viable reroute.
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Transco
Operational Flow Order ? Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
UPDATE - Unplanned Maintenance St, James LIG Meter station (LOC 9002760)
Transco has completed repairs at the St. James LIG Meter Station (LOC 9002760) in Louisiana. Effective intraday cycle 2 for gas day 08/06/2026, scheduling and physical flow at the bi-directional meter are restored to open status. This supersedes prior notice 17135953, which initiated the unplanned maintenance event.
Restoration of St. James LIG meter on Transco removes a localized Louisiana receipt-point constraint; no lasting basis impact expected given the intraday resolution and absence of a stated capacity volume.
Reroute: High: restoration notice -- reroute question is moot as the constraint has been resolved. During the outage, alternative Transco receipt points and interconnecting Gulf Coast pipelines (SNG/EGT, Gulf South, CGT) would have provided partial coverage.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted an updated 2026 major construction and maintenance schedule, superseding prior notice 17115660. The update adds a new tab for Pipeline Inspection (ILI) activities. No specific capacity restrictions or curtailments are announced in this notice; individual maintenance events will be posted separately prior to commencement.
No immediate market impact -- this is a schedule update only; individual events affecting transportation availability will be posted as separate notices prior to each activity.
Reroute: Not applicable -- no capacity constraint is identified in this notice.
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Transco
Update - Market and Production Constraints
Transco posted a daily market and production constraints update effective August 7, 2026, showing multiple zero-capacity TSB locations across Zones 2 through 6. Most notable are zero available capacity readings at SELA N-to-S and S-to-N MP 85.93/85.94 (Zone 3), NY Bay Lateral MP 35.00 (Zone 6), Central Penn South N-to-S (Zone 6), Mainline Milltown MP 1790.85 (Zone 6), and Rivervale Lat North NJ Extension (Zone 6), alongside heavily restricted Zone 5 segment TSBs capped at 0-200 Mdt/d. HBLV secondary swing availability is zero across Zones 2 through 6, indicating system-wide swing service exhaustion from Louisiana through the Northeast.
Multiple zero-capacity TSBs on Transco spanning Zones 3 through 6 with zero HBLV swing in Zones 2-6 signal meaningful northbound and southbound flow restrictions; watch for widening basis at Transco Zone 5 and Zone 6 versus Henry Hub, with potential bearish pressure in Southeast Zone 3-4 if southbound receipts are backed up.
Reroute: Limited: Tennessee Gas Pipeline (TGP) provides the primary competing route for Gulf Coast-to-Northeast flows and may absorb some diverted volumes, but simultaneous system stress on Transco of this breadth across multiple zones limits the degree to which TGP or SNG can fully offset; Zone 6 Mid-Atlantic and Northeast deliveries have particularly constrained alternatives.
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Transco
Unplanned Maintenance St, James LIG Meter station (LOC 9002760)
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Location(s) Off Rate Notice - Underperformance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Update - Market and Production Constraints
Transco has posted a critical market and production constraints notice effective August 4, 2026, showing widespread capacity restrictions across multiple zones from the Gulf Coast to the Northeast. Key constraints include SELA laterals (Zone 3) at 0 MDt/d for both directions, SWLA Lat at 40 MDt/d NSRP only, Mainline Milltown (Zone 6) at 0 NSRP, NY Bay Lateral at 0 Secondary, Central Penn South at 0 Secondary, and multiple Zone 5 segment TSBs at 0-200 MDt/d NSRP, indicating severe northbound flow restrictions from the Southeast through the Mid-Atlantic. No end date is specified, suggesting conditions are operationally driven on a daily basis with no defined restoration timeline.
Widespread Transco constraint notice with zero available capacity at multiple key Zone 3, 5, and 6 TSBs signals significant northbound flow restrictions; expect bullish pressure at Transco Zone 4, Zone 5, and Zone 6 basis points versus Henry Hub, with particular tightness in Mid-Atlantic and Northeast delivery markets on August 4.
Reroute: Limited: Southern Natural Gas (SNG/EGT) provides partial alternative for Southeast segment volumes, and Tennessee Gas Pipeline serves overlapping Northeast markets, but Transco's dominant capacity share in the Southeast-to-Northeast corridor means partial reroute at best; Zone 6 Mid-Atlantic and Northeast volumes have minimal viable alternatives.
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Transco
Update - Market and Production Constraints
Transco has posted its daily market and production constraint update effective August 4, 2026, superseding prior notice 17089214. Multiple system TSB locations show zero or near-zero available capacity, including SELA N-to-S and S-to-N at MP 85.93/94 (Zone 3, both directions at 0), Central Penn South N-to-S (Zone 6, 0 secondary), NY Bay Lateral MP 35.00 (Zone 6, 0 secondary), Mainline Milltown MP 1790.85 (Zone 6, 0 NSRP), and the SWLA Lat N-to-S (Zone 2, 40 MDt/d NSRP remaining). Several Zone 5 segment TSBs (MP 1412.98 to 1674.56) are at 0 NSRP northbound, and HBLV swing service is exhausted in Zones 2 through 6 with only 1 MDt/d remaining in Zone 1. The Vinton FGT Meter 4381 (Zone 2 delivery) is at 0, indicating no available capacity at that key FGT interconnect.
Transco daily constraint posting shows zero HBLV swing in Zones 2-6 and multiple zero-capacity TSBs on northbound Zone 5-6 segments and Southeast laterals, signaling tightness along the full mainline corridor from Gulf Coast through Mid-Atlantic with particular basis widening risk at Transco Zone 5/Zone 6 and the Algonquin Citygate interconnect (135 MDt/d non-traditional remaining).
Reroute: Limited: Southern Natural Gas (EGT) provides partial Southeast alternative for Gulf Coast-origin volumes, and Tennessee Gas Pipeline competes for Mid-Atlantic and Northeast deliveries, but neither can fully replace Transco mainline capacity at the volumes indicated; Zone 5-6 northbound NSRP at zero with no swing backup leaves Mid-Atlantic and Northeast shippers with minimal flexibility.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted an updated 2026 major construction and maintenance schedule, superseding prior notice 17089661. The notice is a general informational posting referencing an external link to the full schedule; no specific outage dates, segments, or capacity restrictions are identified in the notice text itself. Any individual maintenance activities expected to affect transportation services will be communicated via separate notices prior to commencement.
No actionable trading signal from this notice -- it is a schedule update pointer with no capacity volumes, affected segments, or curtailment language; monitor 1Line portal for project-specific follow-on notices that may carry basis implications for Transco Zone 4, Zone 5, or Zone 6.
Reroute: Not applicable -- no specific constraint identified in this notice. Reroute assessments will be relevant when individual project notices are posted with segment and capacity details.
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Transco
Tryon Lateral Unplanned Immediate Digs 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Monthly Maintenance Outlook
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted an updated 2026 major construction and maintenance schedule superseding prior notice 17064602. The notice does not specify individual project dates, durations, or capacity impacts, and states that additional notices will be issued before any activity expected to affect transportation services. Only interruptible and secondary firm service are flagged as potentially affected; primary firm service is not mentioned as at risk.
No actionable trading signal at this time -- this is a schedule update notice with no specific capacity restrictions identified; watch for project-level follow-on notices that will detail segment, dates, and interruptible capacity impacts.
Reroute: Not applicable -- no specific capacity constraint has been identified in this notice; reroute assessment will be relevant when individual project notices are posted.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 50 (Job 361708) Outage 2026 Planned Outage and Maintenance Summary
Transco is performing a planned one-day compressor station outage at Station 50 West (MP 517.23) on September 9, 2026 for safety systems testing. The event restricts south-to-north flow through the TSB, reducing available throughput from 1,535 MDt/d design capacity to 1,435 MDt/d, a loss of approximately 0.100 Bcf/d. Estimated shipper impact is 0-5% of primary firm volumes based on historical utilization.
Single-day planned Transco maintenance on September 9 removes approximately 0.100 Bcf/d of southbound-to-northbound capacity at Station 50 West; impact is negligible with 94% of design capacity remaining available and no firm curtailments expected.
Reroute: Moderate: Southern Natural Gas (SNG/EGT) and Tennessee Gas Pipeline serve overlapping Southeast-to-Northeast corridors and can absorb minor displacement volumes given the small capacity reduction involved.
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Transco
Update - Market and Production Constraints
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Tryon Lateral Unplanned Immediate Digs 2026 Planned Outage and Maintenance Summary
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 80-100 MLD Tool Re-Runs (Job 1211799) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted an updated 2026 major construction and maintenance schedule as an informational notice, superseding prior notice 17043258. The schedule covers planned projects throughout 2026 and includes a new tab for Pipeline Inspection (ILI) activities. No specific capacity restrictions or affected segments are identified in this notice; individual maintenance events will be posted separately prior to commencement.
This is a high-level schedule update with no specific capacity restriction announced -- no actionable basis or Henry Hub signal until individual maintenance windows are posted with segment and volume detail.
Reroute: Not applicable -- no operational constraint is identified in this notice; reroute assessment will depend on specific maintenance windows posted in subsequent notices.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
REMINDER: Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted an updated 2026 major construction and maintenance schedule, superseding prior notice 17022850. The notice is informational only, advising that planned work may affect interruptible and secondary firm transportation services, with no specific capacity volumes, dates, or affected segments identified in this notice. Additional notices will be posted prior to individual maintenance activities if firm service impacts are expected.
Informational scheduling update only -- no specific capacity restrictions or basis implications identified; monitor Transco 1Line for individual maintenance activity notices as they are posted closer to execution.
Reroute: Not applicable -- no specific constraint identified in this notice. When individual Transco maintenance events are posted, reroute potential will vary by segment; SNG/EGT provides partial Southeast alternative, TGP serves overlapping Northeast markets, but Transco is the dominant pipe in its corridors with limited full reroute capacity.
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Transco
2026 Major Construction and Maintenance Projects
Transco has posted a routine update (Revision 3) to its 2026 major construction and maintenance schedule, noting the addition of a new Pipeline Inspection (ILI) Activities tab. No specific capacity restrictions, affected segments, or volumes are identified in this notice. Impacts are limited to interruptible and secondary firm transportation services, with additional notices to be posted prior to individual maintenance activities.
No new market impact -- this is a routine schedule update with no specific capacity figures or segment restrictions named; market has already priced any previously disclosed 2026 Transco maintenance constraints.
Reroute: Not applicable -- no specific capacity constraint is identified in this notice. When individual maintenance activities are posted with segment-level detail, reroute assessment via Southern Natural Gas (SNG/EGT) and Tennessee Gas Pipeline (TGP) would apply for Southeast corridors.
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Transco
Operation Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operational Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
2026 Major Construction and Maintenance Projects
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Operation Flow Order - Imbalance
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Transco
Station 35 ESD Test (Job 327479) 2026 Planned Outage and Maintenance Summary
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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About Transco (Williams)
The largest-volume interstate gas pipeline in the U.S. It carries Gulf Coast and, increasingly, Marcellus supply to the Southeast, Mid-Atlantic and New York markets, and feeds several Gulf Coast LNG export terminals.
- Operated by
- Williams
- Runs
- South Texas and the Louisiana Gulf Coast to New York City, through the Southeast and Mid-Atlantic
- Trading points
- Transco Zone 1–6 (Zone 4, Zone 5, Zone 6 NY, Zone 6 non-NY), Leidy, Station 65, Station 85
- Mapped facilities
- Station 50 (Eunice), Station 60 (St. Francisville), Station 70 (Tylertown), Station 80 (Sanderville), Station 115 (Newnan), Station 110 (Wadley), Station 517 (Benton), Station 35 (Houston)
Line from EIA pipeline data; dots are facilities named in this pipeline’s notices (HIFLD locations). Dashed lines are schematic.
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