Enercast
Transwestern Pipeline

[Transwestern Pipeline] [Force Majeure] Force Majeure - GCX Waha- POI 100744- GD 9/11/2026 (Intraday 3) thru 9/12/26

SEV 4/5Force Majeure0.250 Bcf/d2 days
Summary
Transwestern Pipeline declared force majeure at the GCX Waha interconnect (POI 100744) effective September 11, 2026 at 4:02 PM, reducing delivery capacity from 0.250 Bcf/d to zero due to emergency valve repair. Restoration to full 0.250 Bcf/d capacity is scheduled for September 13, 2026 at 8:59 AM, yielding approximately two gas days of curtailment. Live capacity data for GD 9/11 id3 confirms GCX WAHA (loc 100744) posted operating capacity of 0 with scheduled volumes of 0.027 Bcf/d, consistent with the force majeure declaration -- the data predates full reflection of the event but already shows the constraint.
Trading note
TW force majeure eliminates 0.250 Bcf/d of Permian takeaway at GCX Waha through 9/13 morning; expect bearish Waha basis pressure as Permian supply backs up, with modest bullish signal at SoCal Border and Arizona delivery points where TW volumes are reduced.
Reroute potential
Moderate: EPNG serves overlapping Permian-to-SoCal/Arizona corridors and is the primary reroute alternative for westbound volumes displaced from TW at Waha; however, if EPNG is simultaneously constrained, no California reroute exists. The GCX Waha point is a specific Permian Basin interconnect and producers may need to redirect onto EPNG or other Permian takeaway pipes.

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View original notice text (as posted by Transwestern Pipeline)
Pipeline: Transwestern Pipeline
Notice ID: 120582
Notice Type: Force Majeure
Subject: Force Majeure - GCX Waha- POI 100744- GD 9/11/2026 (Intraday 3) thru 9/12/26
Posted: Sep 11 2026 4:39PM
Effective: Sep 11 2026 4:02PM
End Date: Sep 13 2026 8:59AM

Notice Type Description: Force Majeure
Notice Identifier: 120582
Critical Notice Description: Critical notice
Posting Date/Time: Sep 11 2026 4:39PM
Notice Status Description: Initiate
Required Response Indicator Description: No response required
TSP: 7933047
TSP Name: TRANSWESTERN PIPELINE COMPANY, LLC
Subject: Force Majeure - GCX Waha- POI 100744- GD 9/11/2026 (Intraday 3) thru 9/12/26
Notice Effective Date/Time: Sep 11 2026 4:02PM
Notice End Date/Time: Sep 13 2026 8:59AM
Notice Text: September 11, 2026To: All TW CustomersSubject: Force Majeure - GCX WahaReason: Emergency Maintenance - Valve Repair Gas Day September 11th (Intraday 3)GCX Waha (100744) delivery capacity will be reduced from 250,000 MMBtu/d to 0 MMBtu/d.Gas Day September 13th, 2026GCX Waha (POI 100744) delivery capacity will increase from 0 MMBtu/d to 250,000 MMBtu/d.Transwestern Pipeline reserves the right to revise the above listed schedule. Please continue to monitor Transwestern's website for updates and schedule changes.
Cite this Enercast Pipe Monitor, “[Transwestern Pipeline] [Force Majeure] Force Majeure - GCX Waha- POI 100744- GD 9/11/2026 (Intraday 3) thru 9/12/26” (Transwestern Pipeline), posted 2026-09-12. https://enercast.com/notice/transwestern-pipeline-tw-120582-r1.html
ID: TW-120582  |  Rev. 1  |  Posted: 2026-09-12 11:31  |  Direction: Bearish All Transwestern Pipeline notices  ·  page generated 2026-09-30 04:12 UTC