PipeProwler Notable Event

Updated force majeure on ANR Pipeline's reversed Southeast Mainline

Updated FM on ANR's reversed Southeast Mainline. Gulf LNG feedgas reads bullish on supply tightening; Appalachian basis reads bearish as gas strands.

· · 1 min read

PipeProwler — severity-graded notable pipeline event with lineage from raw notice to API

An updated multi-week force majeure on ANR's reversed Southeast Mainline curtails southbound Appalachia/Midwest-to-Gulf throughput. Gulf LNG feedgas tightens as less Appalachian supply reaches the export terminals; Dom South and Midwest receipts widen as gas strands upstream.

Event details

  • Pipeline / operator: ANR Pipeline Company
  • Event type: Force majeure (unplanned), transport constraint
  • Severity grade: 5/5
  • Affected capacity: 2,915 MMcf/d nominal (May 12–19 peak, 4-point sum)
  • Duration: Multi-week; restoration June 30, 2026
  • Corridor / hub linkage: ANR Southeast Mainline (reversed): Appalachia / Midwest receipts → Gulf / LNG feedgas deliveries
  • Operator notice: ANR Notice #26003023 (UPDATED: NOTICE OF FORCE MAJEURE — ANR Southeast Mainline)
  • First detected: 2026-05-12 09:47 CT

Tags: anr-southeast · gulf-lng-feedgas · force-majeure · transport-constraint · appalachian-basis · midwest-basis

Directional reads describe expected supply/demand implications. Not realized prices. Not trading advice.