Our mission is to be the premier U.S. refining and logistics company.

Refineries & Business Units


Cheyenne Refinery

The Cheyenne Refinery is located in Cheyenne, Wyoming and has a crude oil capacity of 52,000 barrels per day with the complexity to convert a wide variety of crude oils into a high percentage of light products. 

El Dorado Refinery

The El Dorado Refinery is located in El Dorado, Kansas and is one of the largest refineries in the plains states and Rocky Mountain region with a crude oil capacity of 135,000 barrels per day. 

Navajo Refinery

The Navajo Refinery is located in Artesia, New Mexico and has a crude oil capacity of 100,000 barrels per day with the flexibility and complexity to process heavy crude oil, sour crude oil and light sweet crude oil. 

Tulsa Refinery

The Tulsa Refinery is located in Tulsa, Oklahoma in close proximity to the Cushing, Oklahoma crude oil trading hub and has a crude oil capacity of 125,000 barrels per day and a specialty lubricant products manufacturing division.

Woods Cross Refinery

The Woods Cross Refinery is located north of Salt Lake City, Utah and has a crude oil capacity of 31,000 barrels per day in a high conversion refinery that processes regional and Canadian crude oils. 

Holly Energy Partners

HollyFrontier owns a 39% interest, including the 2% general partnership interest, in Holly Energy Partners, L.P. (NYSE: HEP), a master limited partnership that owns and operates petroleum logistics assets including pipelines, terminals and tankage throughout the midcontinent.  

Lubricants & Specialty Products

We manufacture and market lubricants and specialty products through a subsidiary


Our subsidiaries manufacture and markets commodity and modified asphalt products in Arizona, New Mexico, Texas and Northern Mexico.