HollyFrontier Corp in Cheyenne is an independent petroleum refiner operating in the mid-continent, southwestern, and Rocky Mountain regions of the United States.
Its subsidiaries produce and market a wide range of petroleum products including gasoline, diesel, jet fuel, asphalt, heavy products, and specialty lubricants. Additionally, HollyFrontier owns Petro-Canada Lubricants Inc., which operates a facility in Mississauga, Ontario, producing base oils and specialized lubricant products.
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