holly frontier

an independent petroleum refiner in the united states with operations throughout the mid-continent, southwestern and rocky mountain regions. subsidiaries of hollyfrontier produce and market gasoline, diesel, jet fuel, asphalt, heavy products and specialty lubricant products. additionally, hollyfrontier owns petro-canada lubricants inc. whose mississauga, ontario facility produces 15,600 barrels per day of base oils and other specialized lubricant products.