TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 103046 Notice Type: Rates and Charges Subject: RATE CASE UPDATE - DOCKET NO. RP25-989 Critical: N Post Date/Time: 02/24/2026 09:40 AM Notice Status: Initiate For Gas Day(s): 02/24/2026 - 03/30/2026 Notice Effective Date/Time: 02/24/2026 09:40 AM Notice End Date/Time: 03/31/2026 12:00 AM Required Response Indicator Description: 5-No response required Notice Text: Northern is pleased to confirm that a settlement in principle has been reached with a majority of customers in the pending rate case, Docket No. RP25-989. On Monday, February 23, 2026, Northern filed a motion to implement interim settlement rates effective February 1, 2026, for inclusion in the March billing of February 2026 reservation and commodity charges. Northern requested an expedited order on the motion by February 25, 2026, so the lower settlement rates can be applied to the February 2026 billing cycle. The motion is posted on the Rate Proceeding Documentsweb page of Northern's website, along with the Settlement Rate Summary Tableand the MID Matrix Tables available on the Transport and Fuel Ratesweb page. Anticipating the motion will be granted, these interim settlement rates will be reflected on customers' preliminary invoices effective Thursday, February 26, 2026. Estimated rate information for nominated volumes will also be available in the Throughput Management System. In the event the motion is not granted, Northern will revert back to the previously authorized interim rates. If you have any questions, please contact your marketing representative