NATGAS PIPELINE CRITICAL NOTICE: Southern Natural Gas Updated Pipeline Conditions 10 — 12 — 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: 10/12/2026 Effective Date: 10/12/2026 End Date: 10/13/2026 Posting Text: Effective Intraday 1 Cycle for gas day Monday, October 12, 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 into OP Services · 340 (WHITE CASTLE) — 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 allowed — See Notice # 711727 Type 3 / 4 OFO Probability (Unlikely (UL); Too Close to