Subsidiaries of HollyFrontier Corporation own and operate five complex refineries with an annual average crude oil capacity of approximately 457,000 barrels per day. Our refineries can process heavier, less expensive types of crude oil and still produce a high percentage of gasoline, diesel fuel and other high value refined products. Additionally, subsidiaries of HollyFrontier Corporation produce base oils and other specialized lubricants in the U.S., Canada and the Netherlands.

Refinery Locations

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USA Canada

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Cheyenne Refinery

Cheyenne Refinery

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El Dorado Refinery

El Dorado Refinery

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Navajo Refinery

Navajo Refinery

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Tulsa Refinery

Tulsa Refinery

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Woods Cross Refinery

Woods Cross Refinery

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Petro Canada Lubricants

Petro Canada Lubricants

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