Southern Natural Gas imposes capacity restrictions on several segments
Southern Natural Gas Pipeline has restricted reductions into and through multiple segments, including 30 (ONWARD), 50 (PICKENS EAST), 340 (WHITE CASTLE), 380 (SNG — SESH), and 400 (GWINVILLE), citing that they exceed operating capacity. The pipeline also disallowed incremental interruptible storage (ISS) injections.
( 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: 9/20/2026 Effective Date: 09/20/2026 End Date: 09/21/2026 Posting Text: Effective Timely Cycle for gas day Monday, September 21, 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 allowed — See Notice # 711727 Type 3 / 4 OFO Probability (Unlikely (UL); Too Close to Call (TC); Likely (L); Highly Likely (HL)) September 21, 2026 — UL Type 6 OFO Probability (Unlikely (UL); Too Close to Call (TC); Likely (L); Highly Likely (HL)) September 21, 2026 — UL for Short and UL for Long Imbalances More information is available at