NATGAS PIPELINE CRITICAL NOTICE: Southern Natural Gas Updated Pipeline Conditions 10 — 17 — 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 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: PIPELINE CONDITIONS Posted Date: 10/17/2026 Effective Date: 10/17/2026 End Date: 10/18/2026 Posting Text: Effective Intraday 2 Cycle for gas day Saturday, October 17, 2026, and continuing until further notice, SNG restricted the following: OPERATIONAL FLOW ORDERS (OFO) None RESTRICTIONS (SEGMENT) · 340 (WHITE CASTLE) — Exceeds Operating Capacity — Reductions through OP Services · 400 (GWINVILLE) — Exceeds Operating Capacity — Reductions through OP Services · 510 (SOUTH ATLANTA LINE) BH — Exceeds Operating Capacity — Reductions into IT 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 Call (TC); Likely (L); Highly Likely (HL)) October 17, 2026