HollyFrontier Corp (HollyFrontier) is an energy company. The company carries out crude oil refining and wholesale marketing of refined petroleum products. It produces and markets high-value light products such as gasoline, jet fuel, diesel, specialty and modified asphalt, heavy products, and specialty lubricant products. HollyFrontier also operates refineries at Navajo, Woods Cross, Tulsa, El Dorado, Anacortes, Artesia and Cheyenne. The company also owns and operates various asphalt terminals in Arizona, Oklahoma, and New Mexico through HollyFrontier Asphalt Company. It owns and operates logistic assets comprising petroleum products and crude oil pipelines and terminal, tankage and loading rack facilities in the Mid-Continent, Southwest and Rocky Mountains, the US. HollyFrontier is headquartered in Dallas, Texas, the US.