West Operations

Williams’ West Operations include natural gas gathering and processing operations in Colorado, Wyoming and the Four Corners area, as well as the Northwest Pipeline interstate natural gas transmission system. Assets in this area include:

  • Williams, Opal Gas Plant, Wyoming.The Wamsutter and southwest Wyoming areas with approximately 3,500 miles of gathering pipelines with a capacity of more than 1 billion cubic feet per day (Bcf/d) and more than 3,500 receipt points
  • The Opal and Echo Springs processing plants in Wyoming, which have a combined daily inlet capacity of more than 2.2 Bcf/d of natural gas and nearly 125,000 barrels per day (bpd) of NGL production capacity
  • The Willow Creek processing plant in Western Colorado, which has processing capacity of 450 million cubic feet per day (MMcfd) and NGL production capacity of 30,000 bpd
  • The Parachute Plant Complex and three other treating facilities in western Colorado with combined inlet capacity of 1.4 Bcfd. These facilities are connected to more than 3,300 wells via a gathering system with approximately 300 miles of pipeline, ranging up to 30-inch trunk lines
  • The Parachute Lateral, a 38-mile, 30-inch diameter line transporting gas from the Parachute area to the Greasewood hub and White River hub in northwest Colorado
  • PGX Pipeline, a pipeline that transports NGLs from the Parachute area to a major NGL transportation pipeline system
  • Overland Pass, which includes a 760-mile NGL pipeline from Opal, Wyo., to the Mid-Continent NGL market center in Conway, Kan., along with 150- and 125-mile extensions into the Piceance and Denver-Julesburg Basins in Colorado, respectively
  • The Four Corners system in New Mexico and Colorado, which is comprised of 3,800 miles of gathering lines, nearly 6,500 receipt points and three natural gas processing and/or treating plants. The plants have the combined inlet capacity of 1.4 Bcfd of natural gas and can produce 41,000 bpd of NGLs
  • The Mid-Continent Fractionation and Storage complex near Conway, Kan., which consists of a network of interconnected underground caverns that hold large volumes of NGLs and other hydrocarbons and have an aggregate capacity of approximately 20 million barrels