TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 108042 Notice Type: Planned Service Outage Subject: PLANNED SERVICE OUTAGES - JUNE 2026 THROUGH OCTOBER 2026 Location: MARKET AND FIELD AREA Critical: N Post Date/Time: 06/14/2026 10:15 AM Notice Status: Supersede Prior Notice: 107850 For Gas Day(s): 06/14/2026 - 10/31/2026 Notice Effective Date/Time: 06/14/2026 10:15 AM Notice End Date/Time: 11/01/2026 08:59 AM Required Response Indicator Description: 5-No response required Notice Text: Northern has scheduled the following service outages that will affect operating capacity within the months of June 2026 through October 2026. Please review the Planned Service Outage Summary for detailed information related to each outage. A brief description of the most recent change(s) to the Planned Service Outage Summary follows. Northern completed station maintenance at the Bakersfield, Texas compressor station. As a result, capacity impacts for Oasis Bakersfield Pecos Co. (POI 79340) have been updated for the Intraday 2 nomination cycle for Gas Day Sunday, June 14, 2026. Field Area Allocation Group(s)/Point(s): Oasis Bakersfield Pecos Co. (POI 79340) Location: Northern's compressor station located in Oasis, Texas Project Description: Compressor station maintenance Month: June 2026 Direction of Flow: Delivery: Oasis Bakersfield Pecos Co. (POI 79340) Capacity Impact: Primary firm service will be impacted for Oasis Bakersfield Pecos Co. (POI 79340). Revision: Capacity impacts for Oasis Bakersfield Pecos Co. (POI 79340) have been updated for June 2026. Please see Operationally Available Capacity on Northern's website for current flow information and the Field Area Group Allocation Maps andMarket Area Group Allocation Maps for a list of impacted points. If you have any questions, contact your customer service or marketing representative.