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Frontier Oil

Now part of HollyFrontier Corporation, a defunct American oil company, founded in 19491

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.2 Its shares trade on NYSE under the symbol FTO.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1949Founded1

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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.2

The story

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. It changed its name to Frontier Oil in 1996.

On November 7, 2007, Frontier announced that the third quarter of 2007 had been the most profitable in the company's history. They reported a total income of US$137,200,000 for the quarter, and $432,700,000 for the year to that point.

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

From Wikipedia’s article on Frontier Oil, shared under CC BY-SA 4.0.3

Products and brands

  • petrochemical product

Listed on Wikidata.1

Timeline

  1. 1949Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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