The Wood River Refinery is an oil refinery located in Roxana, Illinois, approximately 15 miles (24 km) north of St. Louis, Missouri, on the east side of the Mississippi River. The refinery is currently owned by Phillips 66 and Cenovus Energy, and operated by the joint-venture company WRB Refining, LLC (WRB). WRB was formed on 1 July 2007, with Encana taking a 49% interest in Wood River and also Phillips 66' Borger refinery. Encana subsequently spun off heavy oil producer Cenovus and ConocoPhillips spun off Phillips 66. In return for a 49% stake in the refinery, ConocoPhillips gained a joint interest in two Alberta oil sands (bitumen) heavy oil projects: Christina_Lake_(Alberta) and Foster Creek.