Tesoro Refineries
Salt Lake City Refinery

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Tesoro’s Salt Lake City refinery is the largest of Utah’s five refineries and began operating in 1908. It was the first refinery in the Salt Lake City area and produced lubricating oils, harness dressings and lamp oil for local businesses. The refinery was initially built to process seven
barrels per day of Wyoming crude oil. It has been expanded and updated many times since and was acquired by Tesoro in 2001. Today, the refinery is situated on 145 acres and processes crude oils from Utah, Colorado, Wyoming and Canada. With a total crude-oil capacity
of 58,000 barrels per day, the refinery manufactures gasoline, diesel fuel, jet fuel, heavy fuel oils and liquefied petroleum gas. Products from the refinery are distributed through a system of company-owned and third-party terminals and third-party pipeline connections, primarily to high-growth markets in Utah, Idaho and eastern Washington, with some refined product delivered in Nevada and Wyoming. It also supplies jet fuel to the Salt Lake City International Airport. 

In addition to sales at the refinery, products are distributed to customers through a thirdparty pipeline to our own terminals in Boise and Burley, Idaho, and to third-party terminals in Pocatello, Idaho, and Pasco, Wash. The refinery’s customer base includes more than 40 company-owned Tesoro® and Mirastar® stations. The refinery supplies more than 115 Tesoro branded stations in Utah, Idaho, Wyoming, Nevada and western Colorado that are operated by jobbers or wholesale distributors.