Northern has scheduled the following service outages that will affect operating capacity within the months of August 2026 through November 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.
Market Area
Allocation Group(s)/Point(s): Ventura South (Group 735)
Location: Northern’s pipelines and compressor stations between Ventura, Iowa, and Ogden, Iowa
Project Description: Compressor station and pipeline maintenance
Month: August 2026 through September 2026
Direction of Flow:
Delivery: Ventura South (Group 735)
Capacity Impact: Northern does not anticipate primary firm service will be impacted for Ventura South (Group 735).
Revision: Capacity impacts for Ventura South (Group 735) have been included for September 2026.
Field Area
Allocation Group(s)/Point(s): Beaver North (Group 1025), Beaver C & Beaver North (Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023), Beaver C System (Group 31) and Mitchell to Gaines (Group 825)
Location: Northern’s compressor stations and pipeline between Florey, Texas, and Mullinville, Kansas
Project Description: Compressor station and pipeline maintenance
Month: August 2026 through September 2026
Direction of Flow:
Delivery: Beaver North (Group 1025), Beaver C & Beaver North (Group 1080), Brownfield North (Group 1022) and Pampa North (Group 1023)
Receipt: Beaver C System (Group 31) and Mitchell to Gaines (Group 825)
Capacity Impact: Primary firm service will be impacted for Brownfield North (Group 1022) and Mitchell to Gaines (Group 825). Northern does not anticipate primary firm service will be impacted for Beaver C and Beaver System North (Group 1080) and Pampa North (Group 1023). 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 System North (Group 1080) and Pampa North (Group 1023) have been updated for September 2026.
Allocation Group(s)/Point(s): Sunray Low (Group 10), Sunray High (Group 32) and ETC Sunray Plant (POI 58676)
Location: Northern’s compressor station in Sunray, Texas
Project Description: Compressor station and pipeline maintenance
Month: August 2026 through September 2026
Direction of Flow:
Receipt: Sunray Low (Group 10), Sunray High (Group 32) and ETC Sunray Plant (POI 58676)
Capacity Impact: Primary firm service will be impacted for Sunray Low (Group 10) and ETC Sunray Plant (POI 58676). Primary firm service will not be impacted for Sunray High (Group 32).
Revision: Capacity impacts for Sunray Low (Group 10) and Sunray High (Group 32) have been updated for September 2026.
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 Spraberry, Texas
Project Description: Compressor station maintenance
Month: August 2026 and September 2026
Direction of Flow:
Delivery: Spraberry 12-inch (Group 601) and Spraberry 16-inch (Group 1112)
Receipt: Spraberry Station (Group 602)
Capacity Impact: Northern does not anticipate 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) have been updated for September 2026.
Allocation Group(s)/Point(s): Seminole Subsystem (Group 598)
Location: Northern’s pipeline south of Seminole, Texas
Project Description: Pipeline maintenance
Month: September 2026
Direction of Flow:
Receipt: Seminole Subsystem (Group 598)
Capacity Impact: Northern does not anticipate primary firm service will be impacted for Seminole Subsystem (Group 598).
Allocation Group(s)/Point(s): El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), OneOK Westex Reeves (POI 152), Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311), Agua Blanca Pecos Co (POI 79398), ETC Coyanosa (POI 78630), TW/NNG Estes Ward (POI 61334) and Vaquero Caymus Plant Pecos Co (POI 79303)
Location: Northern’s pipeline south of Kermit, Texas
Project Description: Compressor station maintenance
Month: August 2026
Direction of Flow:
Delivery: El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), OneOK Westex Reeves (POI 152), Oasis/NNG Waha (POI 62148) and Trans Pecos Hub (POI 79311)
Receipt: Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311), Agua Blanca Pecos Co (POI 79398), ETC Coyanosa (POI 78630), TW/NNG Estes Ward (POI 61334) and Vaquero Caymus Plant Pecos Co (POI 79303)
Capacity Impact: Primary firm service will be impacted for Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), OneOK Westex Reeves (POI 152), Oasis/NNG Waha (POI 62148), Trans Pecos Hub (POI 79311), Agua Blanca Pecos Co (POI 79398), TW/NNG Estes Ward (POI 61334) and Vaquero Caymus Plant Pecos Co (POI 79303). Northern does not anticipate primary firm service will be impacted for El Paso/NNG Waha (POI 57100). Primary firm service will not be impacted for ETC Coyanosa (POI 78630).
Revision: Capacity impacts for El Paso/NNG Waha (POI 57100), Permian Highway Waha (POI 79489), GCX/NNG Waha (POI 79415), OneOK Westex Reeves (POI 152), Oasis/NNG Waha (POI 62148) and Trans Pecos Hub (POI 79311) have been updated for August 2026.
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.