NATGAS PIPELINE CRITICAL NOTICE: Southern Natural Gas Complete Unsched Outage — Seg 400

( This is the verbatim text of a critical notification provided by the pipeline operator to its shippers. The information has not been independently verified by Reuters. This item may be followed by a news story depending on the severity of the incident's impact, if any, on operations. )) Company Name: Southern Natural Gas Notice Type Description: MAINTENANCE Posted Date: 10/16/2026 Effective Date: 10/16/2026 End Date: 10/17/2026 Posting Text: Completion of Unscheduled Unit Outage — Gwinville Compressor Station (Segment 400 — Gwinville) The unscheduled unit outage at the Gwinville compressor station (Segment 400 — Gwinville) located in Jefferson Davis County, MS referenced on Southern's weekly EBB maintenance postings and on posting (#712531) posted on October 15, 2026, has been completed. As a result, Segment 400 (Gwinville) capacity of 234 Mdth/d will be returned to full capacity effective Intraday cycle 2, gas day, Friday, October 16, 2026. Please continue to reference our weekly EBB postings for current maintenance information. If you have any questions, please contact your Scheduling Representative or Account Manager. SNG Gas Control More information is available at