The Wyoming Refining Company (WRC) (formerly Gray Oil Company, Sioux Oil Company, and Tesoro Crude Oil Company) is a petroleum refinery which is located in the western portion of the town of Newcastle, Wyoming.
The facility consists of a refinery production/processing area and evaporation ponds (latter onsite and offsite). Cambria Creek serves as the western boundary of the facility and West Main Street/U.S. Highway 16 serves as the facility's northern boundary. Stampede Street generally serves as the facility's eastern boundary, and Little Oil Creek/U.S. Highway 16 Bypass serves as the facility's southern boundary.
