Western Canadian Select is one of North America’s largest heavy crude oil streams. It is a heavy blended crude oil composed mostly of bitumen blended with sweet synthetic and condensate diluents and 25 existing streams of both conventional and unconventional Alberta heavy crude oils at the large Husky terminal in Hardisty, Alberta. Western Canadian Select—which is the benchmark for emerging heavy, high TAN (acidic) crudes— is one of many petroleum products from the Western Canadian Sedimentary Basin oil sands. WCS was launched in December 2004 as a new heavy oil stream by EnCana (now Cenovus), Canadian Natural Resources Limited, Petro-Canada (now Suncor) and Talisman Energy Inc.—. Husky Energy has managed WCS terminal operations since 2004 and joined the WCS Founders in 2015.