Southern Natural Gas Notice 711638

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TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO.	Critical: Y
Notice Type Desc (1): PIPELINE CONDITIONS	Notice Type Desc (2): CURRENT PIPELINE CONDITIONS
Notice Eff Date/Time: 01/31/2026 3:23:03PM	Notice End Date/Time: 02/01/2026 9:00:00am
Post Date/Time: 1/31/2026 3:23:03 PM	Notice ID: 711638
Reqrd Rsp: 1	Rsp Date: 01/31/2026
Notice Stat Desc: INITIATE	Prior Notice:
Subject: Pipeline Conditions as of 02-01-2026

Notice Text:

Effective Timely Cycle for gas day Sunday, February 01, 2026, and continuing until further notice, SNG restricted the following:

OPERATIONAL FLOW ORDERS (OFO)

Type 3 Level 2 OFO North System will be in effect for the start of the gas day, Saturday, January 24, 2026, until further notice, Notice ID # 711602

Type 3 Level 2 OFO South System will be in effect for the start of the gas day, Saturday, January 24, 2026, until further notice, Notice ID # 711603

RESTRICTIONS (SEGMENT)

· 20 (ZONE 0/1 BOUNDARY) BH - Exceeds Operating Capacity - Reductions through IT Services

· 50 (LOUISVILLE EAST) - Exceeds Operating Capacity - Reductions through OP Services

· 270 (RINCON) - Exceeds Operating Capacity - Reductions into IT 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

· 490 (ELLERSLIE) - Exceeds Operating Capacity - Reductions through OP Services

· 710 (PAVO) BH - Exceeds Operating Capacity - Reductions through OP Services

RESTRICTIONS (LINEPACK)

Payback Due Pipe – Payback Due Pipe – Not Accepting for February 1 and February 2

Payback Due Shipper – Not Accepting Until Further Notice

RESTRICTIONS (STORAGE)

SNG will no longer accept requests to execute new loans in Zones 0 and 1 under rate schedule PAL.

ISS withdrawal nominations will be limited by contract to a volume of 5,000 Dths/D.

Type 3 / 4 OFO Probability (Unlikely (UL); Likely (L); Too Close to Call (TC); Highly Likely (HL)

February 01, 2026 – OFO Until Further Notice

February 02, 2026 – OFO Until Further Notice

Type 6 OFO Probability (Unlikely (UL); Too Close to Call (TC); Highly Likely (HL)

February 01, 2026 – UL for Short and UL for Long Imbalances

February 02, 2026 – UL for Short and UL for Long Imbalances

TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO.	Critical: Y
Notice Type Desc (1): PIPELINE CONDITIONS	Notice Type Desc (2): CURRENT PIPELINE CONDITIONS
Notice Eff Date/Time: 01/31/2026 3:23:03PM	Notice End Date/Time: 02/01/2026 9:00:00am
Post Date/Time: 1/31/2026 3:23:03 PM	Notice ID: 711638
Reqrd Rsp: 1	Rsp Date: 01/31/2026
Notice Stat Desc: INITIATE	Prior Notice:
Subject: Pipeline Conditions as of 02-01-2026