| http://www.w3.org/ns/prov#value | - Co. operates two segments: refining operating segment, which operates seven refineries in the western U.S., refines crude oil and other feedstocks into transportation fuels, such as gasoline and gasoline blendstocks, jet fuel and diesel fuel, as well as other products, including heavy fuel oils, liquefied petroleum gas, petroleum coke and asphalt; and retail operating segment, which sells transpor
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