TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 101183 Notice Type: Operational Alert/SOL Subject: SOL - GAS DAY MONDAY, JANUARY 26, 2026 - ENTIRE SYSTEM Location: MARKET AND FIELD AREAS Critical: Y Post Date/Time: 01/22/2026 03:00 PM Notice Status: Initiate For Gas Day(s): 01/26/2026 MID/Zone: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16A, 16B, ABC, D, EF SMS %: Field 0%, Zone ABC 0%, Zone D 0%, Zone EF 0% Notice Effective Date/Time: 01/26/2026 09:00 AM Notice End Date/Time: 01/27/2026 08:59 AM Required Response Indicator Description: 5-No response required Notice Text: An SOL has been called for all Market Area zones (ABC, D and EF) and Field Area MIDswith 0% SMS available for Gas Day Monday, January 26, 2026, due to lower-than-normal system-weighted temperatures. DDVC penalties are applicable to the bumped shipper's quantity.