TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 105567 Notice Type: TSP Capacity Offering Subject: UPDATE 1: SUMMER MARKET AREA CAPACITY FOR BEATRICE NORTH Critical: N Post Date/Time: 04/29/2026 02:05 PM Notice Status: Supersede Prior Notice: 105554 For Gas Day(s): 04/29/2026 - 05/11/2026 Notice Effective Date/Time: 04/29/2026 02:05 PM Notice End Date/Time: 05/11/2026 05:00 PM Required Response Indicator Description: 5-No response required Notice Text: Update 1: For the period of May 1 through May 11, 2026, Northern is able to make short-term adjustments to capacity for groups on the East Leg that would allow all 23,739 Dth/day of the receipts mentioned below that are outside of the Beatrice North Allocation Group (832) to be delivered to points inside the Belleville East Group (488), which includes ANR/NNG Janesville (POI #180) and Guardian/NNG Walworth (POI #78348). Parties requesting service are responsible for ensuring arrangements have been made for any capacity necessary on any upstream or downstream pipeline for their volumes to be confirmed during the nomination and scheduling process and for actual receipts and deliveries. Northern will not provide reservation charge credits for firm delivery quantities not scheduled to Guardian/NNG Walworth (POI #78348) in May 2026 that are a result of underperformance. Original Notice: Market Area capacity in May 2026 is limited due to maintenance outages on Northern's system that are posted under Planned Service Outage. Northern is offering firm throughput service for capacity beginning May 1, 2026 and ending no later than May 31,2026 as follows: Capacity of 23,739 Dth/day from receipts outside of the Beatrice North Allocation Group (832) for delivery to points inside the Beatrice North Allocation Group (832), including up to 17,700 Dth/day at points inside Belleville East Group (488) is available. Northern will not begin evaluating requests for service commencing on May 1, 2026, prior to 5 p.m. CCT Wednesday, April 29, 2026. If you have any questions, please contact your account manager.