TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 101696 Notice Type: TSP Capacity Offering Subject: UPDATE 2: OPEN SEASON FOR FIELD AND FIELD TO DEMARC CAPACITY BEGINNING APRIL 2026 Critical: N Post Date/Time: 01/28/2026 01:40 PM Notice Status: Supersede Prior Notice: 099595 For Gas Day(s): 01/28/2026 - 02/06/2026 Notice Effective Date/Time: 01/28/2026 01:40 PM Notice End Date/Time: 02/06/2026 05:00 PM Required Response Indicator Description: 5-No response required Notice Text: On October 31, 2025, Northern posted an open season for service commencing April 1, 2026, for all Field Area capacity. The amount of available capacity in Northern's Field Area for Summer 2026 is continuing to be evaluated due to pipeline maintenance. These outages impact available capacity during the summer months and at this time, there is no capacity available for the full summer for deliveries to Demarc. Therefore, Northern is closing this open season with this posting. Northern will provide details of available capacity for deliveries to Demarc for the month of April as information becomes available. Northern continues to have limited available capacity for Field Area deliveries. If you have questions, please contact your marketing representative.