24 hrs a day
Petroleum Refining & Marketing
Among the largest independent petroleum refiners 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.
OUR MISSION IS to be the premier U.S. petroleum refining, pipeline and terminal company as measured by superior financial performance and sustainable, profitable growth.