TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 101473 Notice Type: Over-Under Performance Subject: UPDATE 2: UNDERPERFORMANCE - MARKET AREA RECEIPT POINTS Location: MARKET AREA Critical: N Post Date/Time: 01/25/2026 08:59 AM Notice Status: Supersede Prior Notice: 101415 For Gas Day(s): 01/24/2026 - 01/27/2026 Notice Effective Date/Time: 01/25/2026 08:59 AM Notice End Date/Time: 01/28/2026 08:59 AM Required Response Indicator Description: 5-No response required Notice Text: Update 2: Northern isno longerexperiencing underperformance at REX/NNG Gage County (POI 78929) Market Area receipt point. Northern will continue to monitorreceiptpoint performance and provide further updates, if necessary. Northern is currently experiencing underperformance at the following Market Area receipt point: POI Market Area Receipt Point 210 TIGT Milligan Update 1: REX/NNG Gage County (POI 78929) has been added to the list of underperforming receipt points. As a result, Northern may be required to allocate the underperforming receipt point to actual flowing volumes during an intraday nomination cycle to protect pipeline integrity. As performance improves at the receipt point, allocations may be lifted. If you have any questions, contact your customer service or marketing representative.