Tennessee Gas Pipeline (TGP)
RESULTS OS #1440
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Active Notices
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Tennessee Gas Pipeline (TGP)
RESULTS OS #1441
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
TGP Outage Impact Report
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
TGP Outage Impact Report
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
MLV 560-2 to MLV 563-2 Pipe Replacement
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
AVAILABLE FIRM CAPACITY OS #1442
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
MLV 325-1 to MLV 329-1 Pig runs - EMAT
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
RESULTS OS #1439
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
AVAILABLE FIRM CAPACITY - OS #1441
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
AVAILABLE FIRM CAPACITY OS #1440
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
TGP Outage Impact Report
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE MLV 313 (HC LINE) RESOLVED
Tennessee Gas Pipeline has resolved the force majeure declared October 6, 2026 on the HC Line between valve sections MLV 313A-403 and 313A-404 just south of Avoca, New York (Segment 399 FH, Zone 4 End). Repairs to the discovered anomaly are complete and the area is returning to normal operations effective Timely Cycle for gas day October 16, 2026. Meters 412803 TGP Gravel Run and 421068 TGP Wyckoff Storage will also accept nominations up to meter capacity; this is the final update for the outage.
TGP HC Line force majeure south of Avoca, NY is fully resolved as of October 16 gas day Timely Cycle -- no capacity constraint remains and any Zone 4 Northeast basis premium attributable to this event should unwind.
Reroute: High: constraint is resolved; no reroute analysis required. Prior to resolution, limited reroute existed given TGP and Transco are the two dominant Northeast pipes, but that is now moot.
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Tennessee Gas Pipeline (TGP)
NO ANT PIP RESTR SEG 399FH EFF 10-16
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
MLV 560-2 to MLV 563-2 Pipe Replacement
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
OFO DAILY CD1 DS 219 LIFTED EFF 10-15-26
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
METERS HELD TO EPSQ EFFECTIVE 10-14-26
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
AVAILABLE FIRM CAPACITY OS #1439
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
RESULTS - OS #1438
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
FORCEMAJEURE MUSKRAT LINE RESOLVED 10-11
TGP is posting resolution of the force majeure declared on its Muskrat Line (Segments 509, 515, 516, 523, 524) effective October 9, 2026, which was triggered by Hurricane Isaias evacuations at the Cocodrie, Louisiana area facilities. Personnel have returned and operations are returning to normal, with full nominations scheduled to restore effective the Timely Cycle for Gas Day October 11, 2026. This is the final update for this outage; the constraint lasted approximately two gas days.
TGP Muskrat Line force majeure resolved; full scheduling through Segment 524 FH resumes October 11 Timely Cycle, removing any residual bullish pressure on Gulf Coast and Southeast TGP basis points -- no new market impact from this notice.
Reroute: Moderate: Tennessee Gas Pipeline overlaps with SNG (unmonitored), Transco, and ANR in Gulf Coast and Southeast corridors, though the Muskrat Line serves specific offshore/Cocodrie-area receipt points with limited direct bypass. Moot given the restoration.
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Tennessee Gas Pipeline (TGP)
NO ANT PIP RESTR MUSKRAT EFF 10-11
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
MLV 73-1 to MLV 74-1: Anomaly Remediatio
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
TGP Outage Impact Report
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE ON MUSKRAT EFF 10-9-26
Tennessee Gas Pipeline has declared a force majeure on its Muskrat Line (Segments 509, 515, 516, 523, and 524) effective Gas Day October 9, 2026 and until further notice, due to evacuations in the Cocodrie, Louisiana area driven by the projected path and landfall of Hurricane Isaias. Primary In the Path capacity at Segment 524 FH may be impacted as early as the Timely Cycle for October 9. No specific capacity volume is stated; duration is indeterminate (UFN).
TGP Muskrat Line force majeure effective 10-9-26 UFN removes Gulf Coast zone supply with no stated capacity figure but hurricane-driven evacuations at Cocodrie create immediate risk to primary firm service on Segments 509-524; expect bullish pressure on Tennessee Zone 0/1 downstream basis and potential widening at Transco Zone 4 as Gulf Coast TGP supply is at risk.
Reroute: Limited: Gulf South (monitored) and Columbia Gulf Transmission serve overlapping Gulf Coast corridors, but hurricane evacuation conditions affecting the Cocodrie area may simultaneously constrain other Gulf Coast infrastructure; reroute cannot be assumed reliable while Isaias threatens landfall.
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Tennessee Gas Pipeline (TGP)
ANT PIP RESTR SEG 524 FH EFF 10-9-26
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
FGT CARNES DEL RESTRICTION LIFTED 10-9
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE MLV 313 (HC LINE) 10-6 REM
Tennessee Gas Pipeline declared a force majeure on October 2, 2026 between valve sections 313A-403 to 313A-404 on the HC Line just south of Avoca, New York, following discovery of an anomaly requiring immediate repair. This is Revision 3, issued as a reminder that repair work is scheduled to begin on October 6, 2026, with primary firm capacity at MLV 313 HC Zone 4 End (Segment 399 FH) at risk for up to 0.580 Bcf/d; meters 412803 (TGP Gravel Run) and 421068 (TGP Wyckoff Storage) are being physically shut in for the duration of work, with all secondary receipts and deliveries restricted. No restoration timeline has been provided.
TGP HC Line force majeure threatens up to 0.580 Bcf/d of primary firm capacity at MLV 313 Zone 4 End with no restoration timeline; expect bullish pressure on Tennessee Zone 4-300 and Zone 6 New England basis as Appalachian corridor flows through this segment are curtailed, with Wyckoff Storage shut in compounding supply tightness for downstream Northeast markets.
Reroute: Limited: Transco is the primary competing pipeline for Northeast deliveries, and while it serves overlapping markets, TGP's HC Line serves specific Appalachian Zone 4 segments with limited bypass; partial reroute via Transco and TETCO is possible but unlikely to fully offset 0.580 Bcf/d of primary firm curtailment given current system loadings.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE MLV 313(HC LINE) EFF 10-6
Tennessee Gas Pipeline has declared a Force Majeure between valve sections 313A-403 and 313A-404 on the HC Line just south of Avoca, New York, effective October 6, 2026 starting with the Timely Cycle. An anomaly requiring immediate repair was discovered; repair work begins October 6 with no stated end date. Up to 0.580 Bcf/d of Primary In the Path capacity at MLV 313 HC Zone 4 End (Segment 399 FH) is at risk, and meters 412803 (TGP Gravel Run) and 421068 (TGP Wyckoff Storage) will be physically shut in for the duration.
TGP HC Line force majeure removes up to 0.580 Bcf/d of Zone 4 primary firm capacity effective Oct 6 with no restoration timeline; expect bullish pressure on Tennessee Zone 4 and Zone 6 Northeast/New England basis with Wyckoff Storage shut in compounding supply tightness into the region.
Reroute: Limited: Transco is the primary competing Northeast pipeline and serves overlapping Zone 4/6 markets, but TGP and Transco together are the two dominant Northeast corridors, so a TGP constraint of this size cannot be fully offset without knowing Transco's available capacity; no same-corridor single alternative exists for direct HC Line Zone 4 deliveries north of the constraint point.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE MLV 313(HC LINE) EFF 9-16
Tennessee Gas Pipeline has declared a force majeure on the HC Line between valve sections 313A-403 and 313A-404, just south of Avoca, New York, effective September 16, 2026. An anomaly requiring immediate repair was discovered, with TGP personnel on site and repair work estimated to last approximately 4 days. The event threatens up to 0.590 Bcf/d of Primary In the Path capacity at MLV 313 HC Zone 4 End (Segment 399 FH), with impact possible as early as the Timely Cycle for Gas Day September 16.
TGP force majeure on the HC Line near Avoca, NY threatens up to 0.590 Bcf/d of Zone 4 primary firm capacity starting September 16 for an estimated 4 days; expect bullish pressure on Tennessee Zone 4-300 leg basis (most recently -1.440 vs HH) and downstream Algonquin Citygate and New England basis as Appalachian/Northeast supply tightens with limited reroute via Transco.
Reroute: Limited: Transco is the primary competing pipeline for Northeast deliveries from this corridor, but Transco Zone 5 and Northeast segments frequently run near capacity; TGP and Transco together dominate this market, so a 0.590 Bcf/d Zone 4 firm curtailment has limited practical reroute relief for affected Northeast shippers.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE AT STA 542 EFF 8-25-26
Tennessee Gas Pipeline has declared a Force Majeure at Station 542 near DeKalb, Mississippi, effective August 25, 2026 and until further notice, after discovering a failure requiring immediate repairs on Unit 1. Units 2 and 3 at the same station have been out of service since March and April 2026 respectively, meaning all three compressor units are now offline simultaneously. Tennessee estimates the capacity impact at up to 0.280 Bcf/d, with Primary In the Path nominations on Segment 539 BH at risk of curtailment as early as the Timely Cycle for August 26, 2026.
TGP force majeure at STA 542 removes up to 0.280 Bcf/d of northbound capacity on Segment 539 BH; with all three compressor units now offline and no restoration timeline, expect bullish pressure on Tennessee Zone 4/500 Leg basis vs Henry Hub -- Tennessee Zone 4-300 leg was already trading at a -1.360 basis vs HH as of 2026-08-24 and the loss of primary firm capacity eligibility beginning August 26 Timely Cycle could drive further widening in Southeast and downstream Northeast zones.
Reroute: Moderate: Southern Natural Gas (not live-monitored) and Gulf South serve overlapping Gulf Coast-to-Southeast corridors and may absorb some displaced volumes, though SNG real-time capacity is unverified and neither pipe fully replicates TGP's northbound reach into the Northeast.
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Tennessee Gas Pipeline (TGP)
FORCEMAJEURE AT STA 542 EFFECTIVE 8-4-26
Tennessee Gas Pipeline has declared a Force Majeure at Station 542 near DeKalb, Mississippi effective August 4, 2026, after discovering an issue with Unit 1 requiring immediate repairs. Units 2 and 3 at the same station have been out of service since late March and early April 2026 respectively, meaning all three units at STA 542 are now offline. The estimated capacity impact is up to 280,000 Dth/day (0.280 Bcf/d), with Primary In the Path nominations through Segment 539 BH at risk beginning Timely Cycle for August 5, and the event is open-ended with no restoration timeline.
TGP force majeure at STA 542 with all three compressor units offline removes up to 0.280 Bcf/d of capacity through the Mississippi corridor; with no restoration timeline and primary firm service at risk starting August 5, expect bullish pressure on Southeast basis points (Tennessee Zone 4, Transco Zone 4) versus Henry Hub.
Reroute: Moderate: Southern Natural Gas (EGT) and Transco serve overlapping Gulf Coast-to-Southeast corridors, but both are significantly smaller than TGP in this segment and may lack spare capacity to fully absorb 0.280 Bcf/d of displaced volumes.
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Tennessee Gas Pipeline (TGP)
FORCE MAJEURE 113-2 TO 114-2 EFF 7-22-26
Tennessee Gas Pipeline has declared a Force Majeure on Line 2 between MLV 113-2 and MLV 114-2 (Broad Run Lateral) in Boyd County, Kentucky near Catlettsburg, effective July 22, 2026, until further notice. The FM is triggered by a PHMSA Corrective Action Order (CAO) following an emergent repair that began July 8, 2026, which restricts operating pressures on Line 2 from Sta. 110 (Morehead, KY) to Sta. 114 (Catlettsburg, KY). As a result, nominations at Big Sandy Glancy Fork PIN 412742 will be reduced to zero, with potential for additional segment restrictions as nearby scheduled maintenance concludes.
TGP force majeure on Line 2 Appalachian segment (Sta. 110-114, KY) reduces Big Sandy Glancy Fork nominations to zero until further notice, tightening Appalachian southbound/downstream capacity and supporting bullish pressure at Transco Zone 4 Southeast and Dominion South basis vs Henry Hub.
Reroute: Moderate: Transco and Columbia Gas Transmission (TCO) serve overlapping Appalachian and Southeast corridors, but TCO and TETCO M2 capacity availability will determine how much of the stranded Big Sandy volume can be rerouted; additional TGP segment restrictions flagged as possible if nearby maintenance concludes, which could further limit reroute flexibility.
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Showing 31 of 330 active notices: every severity 4–5 notice and everything posted in the last 7 days. The other 299 are older routine postings (mostly severity 1–3).
See all 330 Tennessee Gas Pipeline notices →About Tennessee Gas Pipeline
A long-haul system moving Gulf Coast and Marcellus/Utica gas north and east, with a growing share of flows now running south from Appalachia toward Gulf Coast demand and LNG.
- Operated by
- Kinder Morgan
- Runs
- The Texas and Louisiana Gulf Coast to New York and New England, through Appalachia
- Trading points
- Tennessee Zone 0, Zone 1 (500L, 800L), Zone 4 Marcellus, Zone 6
- Mapped facilities
- Station 542 (Dekalb)
Line from EIA pipeline data; dots are facilities named in this pipeline’s notices (HIFLD locations). Dashed lines are schematic.
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