operations

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

View our Environmental, Health and Safety (EHS) policy, which sets out our commitment to protect the environment and to comply with all applicable laws and regulations. Select any facility below to learn more about its operations

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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Sonneborn

Sonneborn

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