NATGAS PIPELINE CRITICAL NOTICE: Southern Natural Gas SESH Force Majeure — LIFTED

( This is the verbatim text of a critical notification provided by the pipeline operator to its shippers. The information has not been independently verified. 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: FORCE MAJEURE Posted Date: 9/19/2026 Effective Date: 09/19/2026 End Date: 09/20/2026 Posting Text: SESH Force Majeure- LIFTED As previously posted in Notice ID #712413, SESH pipeline's operator notified Southern of a planned outage at their Gwinville Compressor Stations that reduced the available SNG — SESH capacity (Segment 380). SESH pipeline's operator informed Southern that this outage has been completed. As such, SNG — SESH capacity (Segment 380) has been restored to full capacity effective for gas day, Saturday, September 19, 2026. The event of Force Majeure is now cancelled. If you have any questions, please contact your Scheduling Representative or Account Manager. More information is available at