Free: this page refreshes several times a day (delayed) — email & Telegram alerts on a 1-hour delay, severity 4–5 only.
Pro ($149/mo): Real-time alerts within ~2 minutes of posting, full AI trading note. See plans →
All
Force Majeure
Maintenance
Capacity
Compressor
Sev 4–5 Only
Algonquin Gas Transmission
09/14/2026- AGT Operational Flow Order -- EFF 9/15
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
09/01/2026- Hanover to Stoney Point Line 30B Valve Section 6 Investigation -- COMPLETE
SEV 1/5
Informational
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
09/03/2026- AGT Operational Flow Order -- EFF 9/5
SEV 3/5
Informational
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/31/2026- AGT Operational Flow Order --Lifted -- EFF 9/1
SEV 1/5
lifted ✓
Informational
Pre-screen severity 1 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
09/01/2026- Algonquin Operational Notice
SEV 3/5
Informational
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
09/01/2026- Algonquin Operational Notice - UPDATE
SEV 3/5
Informational
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
09/01/2026- Algonquin Operational Notice - UPDATE
SEV 3/5
Informational
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/24/2026- AGT Operational Flow Order -- EFF 8/26
SEV 3/5
Informational
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/22/2026- J-1 Sec 2 VS-08 Detailed Investigation -- COMPLETE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/22/2026- E-1 Sec 2 VS-05 Detailed Investigation -- COMPLETE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/20/2026- AGT Operational Flow Order -- EFF 8/22
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/12/2026- AGT Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/12/2026- Burrillville to EOLN Mainline Valve Section 5 - 7 detailed investigations -- COMPLETE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/12/2026- AGT Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/06/2026- AGT Customer Specific Operational Flow Order -- EFF 8/7
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
08/07/2026- TE Hanover Compressor Station Maintenance -- COMPLETE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
08/07/2026- AGT Operational Flow Order -- EFF 8/8
SEV 4/5
Operational Alert
Until Further Notice
Algonquin Gas Transmission has declared a system-wide Operational Flow Order effective August 8, 2026, and lasting until further notice (notice end date listed as 11/05/2026). The OFO prohibits daily pathing exceeding 4% over scheduled quantities (500 MMBtu minimum) for all system customers, with a tighter 2% / 500 MMBtu restriction applied to customer-specific nominations. No restoration timeline is given beyond 'until further notice,' indicating an open-ended supply management event on one of New England's two dominant interstate pipelines.
Algonquin system-wide OFO effective 8/8 with no fixed end date signals tightening New England supply balance; expect bullish pressure at Algonquin Citygate and elevated New England basis vs Henry Hub, with risk of extreme spike if Iroquois faces simultaneous constraint.
Reroute: Limited to none: Algonquin and Iroquois are the two primary pipelines serving New England; if Iroquois is simultaneously constrained, there is zero reroute available and extreme basis spikes are likely at Algonquin Citygate.
View original notice text Loading…
Algonquin Gas Transmission
08/06/2026- AGT Operational Advisory
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
08/03/2026- AGT Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
07/20/2026- AGT Customer Specific Operational Flow Order -- EFF 7/20
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
07/16/2026- AGT Operational Flow Order -- LIFTED -- EFF 7/14
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
07/13/2026- AGT Operational Flow Order -- EFF 7/14
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
07/08/2026- AGT Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
07/08/2026- AGT Operational Flow Order-- EFF 7/9
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
07/07/2026- AGT Customer Specific Operational Flow Order -- EFF 7/7
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
07/05/2026- AGT Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
06/29/2026- AGT Operational Flow Order -- EFF 6/30
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
06/17/2026- AGT Operational Flow Order -- EFF 6/20
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
06/17/2026- AGT Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
06/17/2026- AGT Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
06/11/2026- AGT Customer Specific Operational Flow Order -- EFF 6/12
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
05/27/2026- AGT Operational Flow Order - EFF 5/28
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
05/21/2026- AGT Operational Flow Order - EFF 5/23
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
05/18/2026- AGT Operational Flow Order -- EFF 5/19
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
05/14/2026- AGT Operational Flow Order -- EFF 5/16
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
05/07/2026- AGT Operational Flow Order -- EFF 5/9
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/30/2026- AGT Operational Flow Order -- EFF 5/2
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/28/2026- AGT Operational Flow Order -- EFF 4/29 and 5/1
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/16/2026- AGT Customer Specific Operational Flow Order -- EFF 4/18
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/16/2026- AGT Operational Flow Order -- EFF 4/20
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/14/2026- AGT Operational Flow Order -- EFF 4/16
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/06/2026- AGT Operational Flow Order -- UPDATE
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/06/2026- AGT Operational Flow Order -- UPDATE
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
04/09/2026- AGT Operational Flow Order -- EFF 4/13
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
03/30/2026- AGT Operational Flow Order - EFF 3-31
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
03/29/2026- AGT Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
03/26/2026- AGT Operational Flow Order
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
03/26/2026- AGT Customer Specific Operational Flow Order
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
03/24/2026- AGT Hourly Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
03/24/2026- AGT Operational Flow Order -- LIFTED EFF 3/25
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
03/18/2026- AGT Hourly Customer Specific Operational Flow Order
SEV 4/5
Operational Alert
Until Further Notice
Algonquin Gas Transmission has issued a system-wide Hourly Customer Specific Operational Flow Order (OFO) effective March 18, 2026, and continuing until further notice (notice end date listed as June 16, 2026). The OFO imposes a No Deficiency Point constraint of 25%/250 on an hourly basis for all customers system-wide, indicating active system stress requiring shippers to maintain balanced or surplus positions on an intra-day basis. No specific capacity volume is stated, but the 'until further notice' language and system-wide scope signal an unresolved operational constraint.
Algonquin system-wide Hourly OFO active from March 18 with no firm restoration date -- expect significant bullish pressure at Algonquin Citygate and broader New England basis as shippers scramble to comply with hourly balancing requirements, with heightened spike risk given no reroute alternative exists for core New England deliveries.
Reroute: Limited to none: Algonquin and Iroquois are the two primary pipelines serving New England; Iroquois is not reported constrained at this time but cannot absorb full Algonquin system shortfall. No meaningful reroute exists for the core New England LDC market.
View original notice text Loading…
Algonquin Gas Transmission
03/19/2026- AGT Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
03/19/2026- AGT Hourly Customer Specific Operational Flow Order -- LIFTED EFF 3/20
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text Loading…
Algonquin Gas Transmission
03/19/2026- AGT Operational Flow Order -- EFF 3/23
SEV 3/5
Informational
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 Loading…
Algonquin Gas Transmission
03/20/2026- AGT Hourly Customer Specific Operational Flow Order
SEV 3/5
Informational
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 Loading…
About Algonquin Gas Transmission
One of the main gas routes into New England. Its constraints drive some of the most volatile winter prices in North America.
Operated by Enbridge Runs New Jersey and New York into New England Trading points Algonquin Citygates
Algonquin Gas Transmission
Line from EIA pipeline data; dots are facilities named in this pipeline’s notices (HIFLD locations). Dashed lines are schematic.
New to pipeline notices? How to read a notice ·
Glossary ·
Get alerts for Algonquin Gas Transmission ·
Capacity offline on all pipelines