MountainWest Pipeline
Project information
As at 31 December 2025
Type:
Processing Facility
Type:
Processing Facility
Aggregation level:
Play or complex
Aggregation level:
Play or complex
Status:
Operating
Status:
Operating
Report standard:
-
Report standard:
-
Ownership %:
100
Ownership %:
100
Operator:
Yes
Operator:
Yes
Extraction:
Processing Facility
Extraction:
Processing Facility
Country:
United States
Country:
United States
Region:
Rocky Mountains
Region:
Rocky Mountains
Facility kind:
Pipeline Gas
Facility kind:
Pipeline Gas
Licensed capacity:
8.4
Licensed capacity:
8.4
Capacity unit:
tbtu
Capacity unit:
tbtu
Capacity period:
Per Day
Capacity period:
Per Day
Capacity kind:
Nameplate
Capacity kind:
Nameplate
Description
As at 31 December 2025
100%-owned FERC-regulated interstate natural gas transmission company operating an approximately 2,200-mile system in the Rocky Mountains near six producing areas, including the Greater Green River, Uinta and Piceance basins. Comprises MountainWest Pipeline, LLC; MountainWest Overthrust Pipeline, LLC; a 50% equity-method interest in White River Hub, LLC; and 64 Bcf of natural gas storage capacity including the Clay Basin underground reservoir in Utah. The Overthrust Westbound Compression expansion entered service in November 2025, adding approximately 325 Mdth/d of firm capacity.
Processing facilities
As at 31 December 2025
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