HF Sinclair
American integrated refining and petroleum-products marketing company with renewable fuels, lubricants, chemicals, and asphalt operations.
Last updated October 16, 2026
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Overview
HF Sinclair Corporation is a United States-based energy company focused on petroleum refining, fuels marketing, renewable fuels, lubricants, specialty chemicals, and asphalt products. The company is headquartered in Dallas, Texas, and serves markets primarily across the western and central United States, while its lubricants and specialty-products operations also extend into Canada and the Netherlands. The business is the successor to Holly Corporation and HollyFrontier Corporation. Its corporate lineage began with the incorporation of General Appliance Corporation in 1947, which adopted the Holly Corporation name in 1952. Holly later expanded through refinery acquisitions and, in 2011, merged with Frontier Oil to create HollyFrontier Corporation. The organization subsequently broadened its portfolio beyond conventional refining through the acquisition of Petro-Canada Lubricants and Sonneborn, a producer of specialty mineral oils and waxes. HF Sinclair's refining system comprises seven complex refineries with stated aggregate crude-processing capacity of approximately 678,000 barrels per stream day. Facilities are located in El Dorado, Kansas; Artesia, New Mexico; Tulsa, Oklahoma; Woods Cross, Utah; Sinclair and Casper, Wyoming; and Anacortes, Washington. The company manufactures and markets gasoline, diesel fuel, jet fuel, asphalt, and other refined petroleum products. Its refining footprint is complemented by asphalt terminals in Arizona, New Mexico, and Oklahoma. Renewable fuels are another important part of the portfolio. HF Sinclair operates renewable-diesel facilities in Sinclair, Wyoming, Artesia, New Mexico, and Cheyenne, Wyoming. The Cheyenne refinery was converted from petroleum processing to renewable-fuel production after the company announced in 2020 that conventional refining at the site would end. The company also operates lubricant and specialty facilities in Mississauga, Ontario; Petrolia, Pennsylvania; and the Netherlands. These businesses produce specialty lubricants, food-grade white mineral oils, waxes, specialty chemicals, and related products. The current corporate identity was established through transactions involving HollyFrontier, Holly Energy Partners, and The Sinclair Companies. In March 2022, HollyFrontier and Holly Energy Partners completed the transactions creating HF Sinclair Corporation as the new parent company, and it began trading on the New York Stock Exchange under the ticker DINO. HF Sinclair later completed its acquisition of Holly Energy Partners in December 2023, ending Holly Energy Partners' status as a separately traded public partnership. The resulting company combines refining and marketing activities with logistics, specialty products, and renewable fuels capabilities.
History
HF Sinclair traces its corporate history to General Appliance Corporation, incorporated in 1947. The company changed its name to Holly Corporation in 1952 and gradually developed into a refining business. Its later history has been shaped by acquisitions, refinery consolidation, and diversification into specialty products and renewable fuels. In 2003, Frontier Oil agreed to acquire Holly, but Holly subsequently cancelled the proposed merger. The termination led to litigation and delayed the combination of the two companies. Holly later expanded its operating footprint in Tulsa, Oklahoma, acquiring one refinery from Sinclair Oil Corporation and another from Sunoco in 2009. These transactions strengthened Holly's position in the central United States. Holly Corporation and Frontier Oil ultimately completed a merger in July 2011. The combined company was named HollyFrontier Corporation and operated a larger network of refining assets. In February 2017, HollyFrontier acquired Suncor Energy's Petro-Canada Lubricants business for C$1.125 billion. The transaction added a significant lubricants platform with operations in Mississauga, Ontario, and broadened the company beyond transportation fuels. HollyFrontier continued diversifying in early 2019 by acquiring Sonneborn for $655 million. Sonneborn manufactured specialty products including food-grade white mineral oils and waxes, giving HollyFrontier a presence in specialty chemicals and industrial materials. The company also began reshaping its refinery portfolio in response to changing fuel economics and renewable-fuel opportunities. In June 2020, HollyFrontier announced that its Cheyenne, Wyoming, refinery would cease conventional petroleum processing and instead be converted to renewable-fuel production. The change resulted in the loss of approximately 200 jobs but created a renewable-diesel facility within the company's refining network. HollyFrontier announced another major expansion in May 2021, agreeing to purchase the Shell Anacortes refinery in Washington for $350 million. The Anacortes facility added stated crude-processing capacity of 149,000 barrels per day. In August 2021, HollyFrontier agreed to acquire assets of Sinclair Oil Corporation, including the Sinclair and Casper refineries in Wyoming, for approximately $2.6 billion. The transaction brought together HollyFrontier's refining and specialty-products businesses with Sinclair's refining, marketing, and branded fuel activities. On March 14, 2022, HollyFrontier and Holly Energy Partners announced completion of the transactions involving The Sinclair Companies and the creation of HF Sinclair Corporation. The new parent company began operating under the HF Sinclair name and traded on the New York Stock Exchange using the ticker DINO. The post-formation company continued to adjust its operating structure. In July 2022, HF Sinclair announced a workforce reduction affecting approximately 87 people at the Sinclair, Wyoming, refinery. In December 2023, HF Sinclair completed its acquisition of Holly Energy Partners through a combination of HF Sinclair shares and cash. Holly Energy Partners' common units were removed from the New York Stock Exchange, and the partnership ceased to operate as a separately traded public entity. Today, HF Sinclair operates a downstream energy platform centered on seven complex refineries with aggregate stated crude-processing capacity of approximately 678,000 barrels per stream day. Its portfolio also includes renewable-diesel facilities, lubricants and specialty-products plants, asphalt terminals, and petroleum-product marketing activities. The company remains primarily oriented toward the United States, while its specialty-products operations provide an international dimension through facilities in Canada and the Netherlands.
- 2023
Holly Energy Partners becomes wholly integrated
[1]HF Sinclair completed the acquisition of Holly Energy Partners, which ceased to be a separately traded public partnership.
- 2022
HF Sinclair is established
[1]Transactions with The Sinclair Companies were completed and HF Sinclair Corporation became the new parent company.
- 2021
Anacortes refinery acquisition agreement
[1]HollyFrontier agreed to acquire the Shell Anacortes refinery in Washington for $350 million.
- 2021
Sinclair assets acquisition agreement
[1]HollyFrontier agreed to acquire Sinclair Oil assets, including two Wyoming refineries, for approximately $2.6 billion.
- 2020
Cheyenne refinery conversion announced
[1]HollyFrontier announced that the Cheyenne refinery would stop petroleum processing and transition to renewable-fuel production.
- 2019
Sonneborn acquisition
[1]HollyFrontier acquired Sonneborn for $655 million, expanding its specialty-products portfolio.
- 2017
Petro-Canada Lubricants acquisition
[1]HollyFrontier acquired Suncor Energy's Petro-Canada Lubricants unit for C$1.125 billion.
- 2011
HollyFrontier is formed
[1]Holly Corporation and Frontier Oil completed their merger, creating HollyFrontier Corporation.
- 2009
Tulsa refinery acquisitions
[1]Holly acquired two Tulsa refineries, one from Sinclair Oil Corporation and one from Sunoco.
- 2003
Proposed Frontier Oil merger is cancelled
[1]Frontier Oil agreed to acquire Holly, but Holly later cancelled the merger, resulting in litigation.
Products and positioning
Integrated downstream energy company combining refining, petroleum-product marketing, renewable fuels, lubricants, specialty chemicals, and asphalt.
Refining and fuels
Refined petroleum fuels
HF Sinclair manufactures and markets conventional transportation fuels through its refinery network. Major products include gasoline, diesel fuel, and jet fuel. The company's seven complex refineries are located in Kansas, New Mexico, Oklahoma, Utah, Wyoming, and Washington, providing a geographically concentrated downstream platform serving western and central U.S. markets.
Renewable fuels · 2020
Renewable diesel
The company operates renewable-diesel facilities in Sinclair, Wyoming; Artesia, New Mexico; and Cheyenne, Wyoming. Renewable diesel became more prominent in the portfolio after the Cheyenne refinery was converted from petroleum processing to renewable-fuel production. These facilities complement HF Sinclair's conventional refining operations.
Lubricants · 2017
Lubricants and specialty oils
HF Sinclair's lubricants platform includes specialty lubricant products and related oils manufactured through facilities in Mississauga, Ontario, and other locations. The business entered the portfolio through the acquisition of Petro-Canada Lubricants and supports industrial, automotive, and other specialty applications.
Specialty chemicals · 2019
Specialty chemicals and waxes
The specialty-products portfolio includes food-grade white mineral oils, waxes, and specialty chemicals associated with the Sonneborn business. These products diversify HF Sinclair away from dependence on transportation fuels and serve industrial, consumer, pharmaceutical, and food-related applications where the relevant grades are qualified for those uses.
Asphalt
Asphalt and modified asphalt
HF Sinclair produces specialty and modified asphalt products and operates asphalt terminals in Arizona, New Mexico, and Oklahoma. The asphalt business supplies materials for road construction, paving, maintenance, and other infrastructure-related uses, linking the company's refining operations with construction-material markets.
Brand decisions
2023
Acquire Holly Energy PartnersM&ABackground
HF Sinclair pursued full ownership of Holly Energy Partners to integrate the logistics partnership into the parent company.
Action taken
HF Sinclair completed the acquisition using a combination of HF Sinclair common stock and cash.
Aftermath
Holly Energy Partners' common units were no longer listed on the New York Stock Exchange, and the entity ceased to be a separately traded public partnership.
2021
Acquire Sinclair Oil assetsM&ABackground
HollyFrontier sought to expand its refining and marketing footprint through the acquisition of assets owned by Sinclair Oil Corporation.
Action taken
The parties agreed to a transaction covering Sinclair assets, including refineries near Casper and Sinclair, Wyoming, for approximately $2.6 billion.
Aftermath
The transaction contributed to the formation of HF Sinclair Corporation in 2022.
Transaction value. $2.6 billion (2021 announcement)
2020
Convert the Cheyenne refinery to renewable-fuel productionStrategyBackground
HollyFrontier decided to end conventional petroleum processing at its Cheyenne, Wyoming, refinery and reposition the site around renewable fuels.
Action taken
The refinery was designated for conversion to renewable-diesel production. The change affected approximately 200 workers.
Aftermath
Cheyenne became part of the company's renewable-fuels network alongside facilities in Sinclair, Wyoming, and Artesia, New Mexico.
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