Summary
Transco has declared force majeure on an unplanned outage at Compressor Station 70 Main Unit 9 (approximately MP 662, in the Southeast zone south of the Mid-Atlantic delivery region). This is Revision 2 of the notice; the original was posted 08/15/2026. No specific capacity loss volume is stated in the notice text. The live capacity table shows COMPRESSOR STATION 70 MP 662 at 77.9% utilization with 0.739 Bcf/d of headroom as of the 2026-08-18 post cycle -- one day prior to this revision -- meaning that reading may predate or not yet fully reflect the unit outage.
Trading note
Transco force majeure at Station 70 (MP 662) removes mainline compression capacity in the Southeast corridor; no stated volume impact, but Station 60 (MP 588.62) is already at 100% utilization immediately downstream to the south, and CS 84 (MP 784, north of Station 70) is at 99% utilization, indicating the mainline is highly loaded on both sides of the affected unit -- expect bullish pressure at Transco Zone 4 and downstream Mid-Atlantic/Northeast zones with possible curtailment risk to interruptible and secondary firm shippers north of Station 70.
Reroute potential
Limited: Southern Natural Gas (SNG) provides partial Southeast corridor alternative in principle, but SNG is unmonitored and its current available capacity is unknown; Tennessee Gas Pipeline (TGP) serves overlapping Northeast markets but cannot substitute for Transco mainline compression losses at the Southeast zone level without significant re-nomination lead time.
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View original notice text (as posted by Transco)
Pipeline: Transco
Notice: UPDATE - Notice of Force Majeure Event - Unplanned Outage Station 70 Main Unit 9
Posted: 08/15/2026 19:19:24 CDT
Notice ID: 17169481
