HF Sinclair

The company was incorporated under the name General Appliance Corporation in 1947 and changed its name to Holly Corporation in 1952.[3]

In 2003, Frontier Oil agreed to acquire Holly but Holly later cancelled the merger, leading to litigation.[4]

In 2009, Holly Corporation acquired 2 refineries in Tulsa, Oklahoma: one from Sinclair Oil Corporation for $128 million and one from Sunoco.[5]

In July 2011, Holly Corporation and Frontier Oil merged forming HollyFrontier Corporation.[6][7]

In February 2017, the company acquired Suncor Energy's Petro-Canada Lubricants unit in Mississauga, Ontario, Canada for C$1.125 billion.[8]

In early 2019, HollyFrontier acquired Sonneborn, a manufacturer of food grade white mineral oils and waxes in Petrolia, Pennsylvania, for $655 million.[9]

In June 2020, HollyFrontier announced its Cheyenne refinery will cease processing petroleum, instead shifting production solely to renewable fuel, with the loss of approximately 200 workers.[10]

In May 2021, HollyFrontier agreed to purchase the Shell Anacortes Refinery near Anacortes, Washington, with capacity of 149,000 bbl/d, for $350 million.[11]

In August 2021, HollyFrontier agreed to purchase the assets of Sinclair Oil Corporation, including its two refineries near Casper, Wyoming, and Sinclair, Wyoming, for $2.6 billion.[12] The succeeding company, HF Sinclair Corporation, is expected to finalize the merger mid-2022.[13]

In March 14, 2022, HollyFrontier and Holly Energy Partners announced the completion of transactions with The Sinclair Companies and the establishment of the new parent company, HF Sinclair Corporation (NYSE:DINO).[14]

In July 2022, HF Sinclair announced the layoff of approximately 87 people in the Sinclair, Wyoming refinery.[15]

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