Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
Trunkline Gas Company
[Trunkline Gas Company] [Maint] Trunkline South Texas Maintenance Update #2
SEV 3/5
Maintenance77 Days
Trunkline Gas Company is performing integrity work on its South Texas Modified Transmission System (STX System) between the Jalapeno interconnection (Jim Wells County) and Mainline Valve 16 (Bee County) from March 23 through June 8, 2026. The segment will operate under reduced pressure, effectively shutting in deliveries on the affected segment unless a delivery point can accept gas. This is the second update to the original notice and is marked Critical by the pipeline, with reservation charge credits applicable under tariff Section 29.1(A)(2).
Trunkline STX segment effectively shut in through June 8 removes Gulf Coast southbound delivery capacity on this corridor, supportive of Henry Hub and Transco Zone 4 as Gulf Coast supply tightens modestly from this segment outage.
Reroute: Moderate: Texas Eastern (TETCO), Southern Natural (EGT), and ANR serve overlapping Gulf Coast and northbound corridors, though specific South Texas delivery points on the STX System may have limited bypass options depending on local interconnects.
