HollyFrontier

HollyFrontier is an independent petroleum refiner that owns and operates four refineries serving the Rockies, midcontinent, and Southwest, with a total crude oil throughput capacity of 405,000 barrels per day. It is converting its Cheyennepetroleum refinery to renewable diesel. It also has a 57% ownership stake in Holly Energy Partners, which owns and operates petroleum product pipelines and terminals principally in the Southwestern United States.