TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 100832 Notice Type: TSP Capacity Offering Subject: CAPACITY NOTICE - MARKET AREA SERVICE BEGINNING APRIL OR NOVEMBER 1, 2026 Critical: N Post Date/Time: 01/16/2026 08:45 AM Notice Status: Initiate For Gas Day(s): 01/15/2026 - 02/06/2026 Notice Effective Date/Time: 01/16/2026 08:45 AM Notice End Date/Time: 02/06/2026 05:00 PM Required Response Indicator Description: 5-No response required Notice Text: Northern is willing to sell firm capacity and grant realignments greater than 60 days prior to the contract start date for (1) annual service (twelve consecutive months of the same amount of capacity); and (2) seasonal service for requests from receipt point NBPL/NNG Ventura (POI 192) for deliveries east of Ventura on the Mason City Branch Line that begin April 1, 2026 or November 1, 2026 for (1) one or multiple years or (2) one or multiple seasons. The contract quantities must be uniform throughout the term of the agreement for each annual or seasonal service and are subject to available capacity. All realignments must go through the term of the contract and are subject to available capacity. If you have any questions, please contact your marketing representative.