NATGAS PIPELINE CRITICAL NOTICE: Southern Natural Gas Pipeline Conditions as of 09 — 20 — 2026

( 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: PIPELINE CONDITIONS Posted Date: 9/19/2026 Effective Date: 09/19/2026 End Date: 09/20/2026 Posting Text: Effective Timely Cycle for gas day Sunday, September 20, 2026, and continuing until further notice, SNG restricted the following: OPERATIONAL FLOW ORDERS (OFO) None RESTRICTIONS (SEGMENT) · 30 (ONWARD) — Exceeds Operating Capacity — Reductions into OP Services · 50 (PICKENS EAST) BH — Exceeds Operating Capacity — Reductions through OP Services · 340 (WHITE CASTLE) — Exceeds Operating Capacity — Reductions through OP Services · 380 (SNG — SESH) — Exceeds Operating Capacity — Reductions into OP Services · 400 ( GWINVILLE) — Exceeds Operating Capacity — Reductions through OP Services RESTRICTIONS (LINEPACK) Payback Due Pipe — None Payback Due Shipper — None RESTRICTIONS (STORAGE) Incremental Interruptible Storage (ISS) Injections not allo