Northern has scheduled the service outages that will affect operating capacity within the months of May 2025 through October 2025. 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.
Market/Field Area Combined
Allocation Group(s)/Point(s): Field to Demarc (Group 831) and Beatrice North (Group 832)
Location: Northern’s mainlines and compressor stations between Mullinville, Kansas, and Ogden, Iowa
Project Description: Pipeline and compressor station maintenance
Month: May 2025 through October 2025
Direction of Flow:
Delivery: Field to Demarc (Group 831) and Beatrice North (Group 832)
Capacity Impact: Northern does not anticipate primary firm service will be impacted for Beatrice North (Group 832) and Field to Demarc (Group 831).
Revision: Capacity impacts for Field to Demarc (Group 831) and Beatrice North (Group 832) have been updated for August 2025.
Market Area
Allocation Group(s)/Point(s): Waterloo East (Group 773), Earlville East (Group 487), Galena East (Group 463) and Belleville East (Group 488)
Location: Northern’s pipelines and compressor stations between Waterloo, Iowa, and Belleville, Wisconsin
Project Description: Pipeline and compressor station maintenance
Month: May 2025 through August 2025
Direction of Flow:
Delivery: Waterloo East (Group 773), Earlville East (Group 487), Galena East (Group 463) and Belleville East (Group 488)
Capacity Impact: Northern does not anticipate primary firm service will be impacted for Waterloo East (Group 773), Galena East (Group 463) and Earlville East (Group 487). Primary firm service will not be impacted for Belleville East (Group 488).
Revision: Capacity impacts for Waterloo East (Group 773), Earlville East (Group 487), Galena East (Group 463) and Belleville East (Group 488) have been included for August 2025.
Field Area
Allocation Group(s)/Point(s): Beaver North (Group 1025), Beaver C and Beaver North (Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023), Mitchell to Gaines (Group 825) and Beaver C System (Group 31)
Location: Northern’s compressor stations and mainline between Florey, Texas, and Mullinville, Kansas
Project Description: Station maintenance
Month: May 2025 through August 2025
Direction of Flow:
Receipt: Beaver C System (Group 31) and Mitchell to Gaines (Group 825)
Delivery: Beaver North (Group 1025), Beaver C and Beaver North (Group 1080), Brownfield North (Group 1022) and Pampa North (Group 1023)
Capacity Impact: Northern anticipates primary firm service will be impacted for Beaver C and Beaver North (Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023) and Mitchell to Gaines (Group 825). Primary firm service will not be impacted for Beaver North (Group 1025) and Beaver C System (Group 31).
Revision: Capacity impacts for Beaver North (Group 1025), Beaver C and Beaver North (Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023), Mitchell to Gaines (Group 825) and Beaver C System (Group 31) have been updated for June 2025. Capacity impacts for Beaver North (Group 1025) have been updated for July 2025. Capacity impacts for Beaver North (Group 1025), Beaver C and Beaver North (Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023) and Beaver C System (Group 31) have been included for August 2025.
Allocation Group(s)/Point(s): Spraberry 12-inch (Group 601), Spraberry 16-inch (Group 1112) and Spraberry Station (Group 602)
Location: Northern’s compressor station in Midland, Texas
Project Description: Station maintenance
Month: July 2025 and August 2025
Direction of Flow:
Delivery: Spraberry 12-inch (Group 601) and Spraberry 16-inch (Group 1112)
Receipt: Spraberry Station (Group 602)
Capacity Impact: Northern anticipates primary firm service will be impacted for Spraberry 12-inch (Group 601), Spraberry 16-inch (Group 1112) and Spraberry Station (Group 602).
Revision: Capacity impacts for Spraberry 12-inch (Group 601) and Spraberry Station (Group 602) have included for August 2025.
Allocation Group(s)/Point(s): Seminole Subsystem (Group 598), El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311) and Oneok Westex Reeves (POI 152)
Location: Northern’s pipeline south of Kermit, Texas
Project Description: Pipeline maintenance
Months: May 2025 and August 2025
Direction of Flow:
Delivery: Seminole Subsystem (Group 598), El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311) and Oneok Westex Reeves (POI 152)
Capacity Impact: Primary firm service will be impacted for El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415) and Oasis/NNG Waha (POI 62148). Primary firm service will not be impacted for Seminole Subsystem (Group 598), Trans Pecos Hub (POI 79311) and Oneok Westex Reeves (POI 152).
Revision: Capacity impacts for Seminole Subsystem (Group 598), El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311) and Oneok Westex Reeves (POI 152) have been included for August 2025.
Please see Operationally Available Capacity on Northern’s website for current flow information and the Field Area Group Allocation Maps and Market Area Group Allocation Maps for a list of impacted points.
If you have any questions, contact your customer service or marketing representative.