MountainWest includes approximately 2,000 miles of natural gas transmission pipelines and 56 Bcf of gas storage, including the Clay Basin underground storage reservoir, providing valuable service to western markets.

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Operational Details

MoutainWest Pipeline

• System Peak Design Capacity: 2.6 million dekatherms per day
• Supply Areas: Located in Rocky Mountains near six major producing areas, including Greater Green River, Uinta, and Piceance Basins
• Market Areas: Transports natural gas to various Salt Lake City delivery points as well as other major pipeline systems for delivery to markets in the West and Mid-Continent
• Miles of Transmission Pipeline: 1,868 miles
• Compressor Stations: 14
• Storage Assets: Depleted reservoir Clay Basin (54.0 Bcf) and aquifer storage peaking facilities Leroy(0.8 Bcf), Coalville (0.7 Bcf), and Chalk Creek (0.3 Bcf)
• Clay Basin is key underground storage reservoir in the RockiesStrategically located at center of MountainWest system

MountainWest Overthrust Pipeline

• System Peak Design Capacity: 2.8 million dekatherms per day
• Supply Areas: Serves producers in the Greater Green River, Wamsutter, and other Rockies basins and provides transport to interconnected interstate pipelines importing gas from other regions
• Market Areas: Delivers regional and imported natural gas to multiple market outlets, enables shippers to access both eastern and western markets given the bi-directional pipeline flow capabilities.
• Miles of Transmission Pipeline: 261 miles
• Compressor Stations: 3

White River Hub

• 4 miles of 36-inch pipeline, ~11 miles of 30-inch pipeline and related interconnect facilities
• System Peak Design Capacity: 2.6 million dekatherms per day
• Hub services Piceance natural gas production access to interconnected pipelines including Northwest Pipeline, MountainWest Pipeline, Rockies Express Pipeline, Colorado Interstate Gas Pipeline, and Wyoming Interstate Pipeline
• 50/50 JV between (hub operator) and Enterprise Products Partners L.P.
• Provides producers, marketers, and shippers access to downstream markets for Piceance Basin gas