Maintenance Construction Schedule - MountainWest Overthrust Pipeline

2025 Schedule

Period Category Preliminary Dates Duration Location Project Possible Customer Impact Current Capacity (Dth/d) Restricted Capacity (Dth/d) Anticipated Firm Cut Quantity Anticipated Total Nomination Cut %
November Commissioning November 11 - 13 3 Days Rock Springs Compressor Station Overthrust West Compression Expansion • ML122 Rendezvous: From 1,427,000 Dth/d down to 1,151,000 Dth/d

• Whitney Canyon Constraint: From 345,000 Dth/d down to 291,000 Dth/d

• MAP 10005 Kanda/Col: From 300,000 Dth/d down to 173,667 Dth/d

• MAP 10013 WIC RS: From 825,000 Dth/d down to 347,333 Dth/d
ML122 Rendezvous: 1,427,000 Dth/d

Whitney Canyon Constraint: 345,000 Dth/d

MAP 10005 Kanda/Col: 300,000 Dth/d

MAP 10013 WIC RS: 825,000 Dth/d
ML122 Rendezvous: 1,151,000 Dth/d

Whitney Canyon Constraint: 291,000 Dth/d

MAP 10005 Kanda/Col: 173,667 Dth/d

MAP 10013 WIC RS: 347,333 Dth/d
17,667 Dth 32%

Note: This schedule is subject to change. It is recommended the Shippers monitor MountainWest Pipeline's critical notices about schedule revisions.