Frontier Oil was an energy company, originally based in Canada, that moved to the United States. Its headquarters were located in Houston, TX, and its subsidiary company, Frontier Refining & Marketing, Inc., is located in Denver, Colorado. Frontier's primary products were gasoline, diesel, and asphalt, and were marketed in the Rocky Mountain and Plains States.

Frontier Oil owned refineries in Cheyenne, Wyoming and El Dorado, Kansas. Its Cheyenne refinery has a capacity of (bpd) and the El Dorado Refinery has a capacity of .

Frontier merged with Holly Corporation in 2011 to form HollyFrontier Corporation.

History

The company was incorporated in Ontario in 1949 as Wainwright Refineries Limited, changing its names to Wainwright Producers & Refiners Limited in 1953, to Wainoco Oil and Chemicals Ltd. in 1966, and to Wainoco Oil Ltd. in 1971. In 1976 it became Wainoco Oil Corporation on its move to Wyoming in the United States.

Frontier merged with Holly Corporation effective as of July 1, 2011 to form HollyFrontier Corporation.

See also

  • List of oil refineries

References

  • Frontier Oil website
  • Crude pipelines serving Frontier's refineries