FORCE MAJEURE MLV 313 (HC LINE) 10-6 REM

SEV 4/5Force Majeure0.580 Bcf/dUntil further notice

Summary

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.

Trading note

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 potential

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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View original notice text (as posted by Tennessee Gas Pipeline (TGP))

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TSP/TSP Name:  1939164-TENNESSEE GAS PIPELINE	Critical: Y
Notice Type Desc (1):  FORCE MAJEURE	Notice Type Desc (2):  FORCE MAJEURE
Notice Eff Date/Time:  10/05/2026 6:37:08AM	Notice End Date/Time:  10/06/2026 9:00:00am
Post Date/Time:  10/5/2026 6:37:08 AM	Notice ID: 404701
Reqrd Rsp:  1	Rsp Date/Time:  10/5/2026 12:00:00 AM
Notice Stat Desc:  SUPERSEDE	Prior Notice:  404646
Subject:  FORCE MAJEURE MLV 313 (HC LINE) 10-6 REM
Notice Text:

 

FORCE MAJEURE AT MLV 313A-403 TO MLV 313A-404 (HC LINE) EFFECTIVE 10-6-2026 REMINDER

 

As a reminder, pursuant to Article XII of the General Terms and Conditions of Tennessee's FERC Gas Tariff, Tennessee posted notice of a Force Majeure event between valve sections 313A-403 to 313A-404 on the HC Line just south of Avoca, New York on October 2, 2026 (Notice Identifier #404646).  An anomaly has been discovered which requires immediate repairs.  Tennessee personnel are on site developing a repair plan with repair work scheduled to begin on Tuesday, October 6, 2026.  Tennessee estimates the impact of this work to be up to 580,000 Dths pathed through MLV 313 HC Zone 4 End (Segment 399 FH).  Based on current nominations and forecasted demand, Tennessee is providing notice to customers that Primary In the Path capacity at MLV 313 HC Zone 4 End (Segment 399 FH) could be impacted as early as Timely Cycle for the Gas Day of Tuesday, October 6, 2026 and throughout the duration of this repair work. 

 

Additionally, the following meters will be physically shut in for the duration of the work: 

412803 TGP Gravel Run

421068 TGP Wyckoff Storage

During the outage, Tennessee will restrict all secondary receipts and secondary deliveries at these meters.

 

Tennessee will continue to update customers as more information becomes available.

 

Please contact your Account Representative or Scheduler if you have any questions.

..

Cite this Enercast Pipe Monitor, “FORCE MAJEURE MLV 313 (HC LINE) 10-6 REM” (Tennessee Gas Pipeline (TGP)), posted 2026-10-06. https://enercast.com/notice/tennessee-gas-pipeline-tgp-tgp-404701-r3.html

ID: TGP-404701 | Rev. 3 | Posted: 2026-10-06 02:32 | Direction: Bullish All Tennessee Gas Pipeline (TGP) notices · page generated 2026-10-06 02:34 UTC