Enercast

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

SEV 4/5Force Majeure0.580 Bcf/dUntil further notice
Summary
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.
Trading note
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 potential
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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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:  10/02/2026 1:17:55PM	Notice End Date/Time:  10/03/2026 9:00:00am
Post Date/Time:  10/2/2026 1:17:55 PM	Notice ID: 404646
Reqrd Rsp:  1	Rsp Date/Time:  10/2/2026 12:00:00 AM
Notice Stat Desc:  INITIATE	Prior Notice: 
Subject:  FORCE MAJEURE MLV 313(HC LINE) EFF 10-6
Notice Text:

 

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

 

Pursuant to Article XII of the General Terms and Conditions of Tennessee's FERC Gas Tariff, Tennessee is posting notice of a Force Majeure event between valve sections 313A-403 to 313A-404 on the HC Line just south of Avoca, New York.  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) EFF 10-6” (Tennessee Gas Pipeline (TGP)), posted 2026-10-02. https://enercast.com/notice/tennessee-gas-pipeline-tgp-tgp-404646-r1.html
ID: TGP-404646  |  Rev. 1  |  Posted: 2026-10-02 18:21  |  Direction: Bullish All Tennessee Gas Pipeline (TGP) notices  ·  page generated 2026-10-02 18:24 UTC