Also known as:
HF Sinclair is a US independent refining company with an asset portfolio focused on niche inland markets.
HF Sinclair was formed by the mergers of Holly and Frontier (in 2011) and Sinclair (in 2022).
Casper - 26 kbpd HF Sinclair (100%)
El Dorado - 165 kbpd HF Sinclair (100%)
Navajo - 124 kbpd HF Sinclair (100%)
Puget Sound - 149 kbpd HF Sinclair (100%)
Tulsa East - 76 kbpd HF Sinclair (100%)
Tulsa West - 91 kbpd HF Sinclair (100%)
Woods Cross - 41 kbpd HF Sinclair (100%)
Wyoming - 92 kbpd HF Sinclair (100%)
1940 - Cheyenne refinery built by Frontier Refining
1969 - Holly acquired Navajo refinery from Continental
1989 - Holly acquired Lovington plant from Southern Union and put back into service
1991 - Wainoco acquired Frontier and changed name to Frontier Oil
1999 - El Dorado refinery acquired by Frontier
2003 - Woods Cross refinery acquired by Holly
2009 - Sinclair Tulsa refinery acquired by Holly
2009 - Sunoco Tulsa refinery acquired by Holly
2011 - Holly merged with Frontier to form HollyFrontier
2020 - Refinery operations stop at Cheyenne and conversion to renewable diesel begins.
2021 - HollyFrontier acquired the Puget Sound refinery from Shell
2021 - HollyFrontier announces plan to acquire refinery business of Sinclair (Wyoming and Casper refineries)
2022 - Sinclair acquired by HollyFrontier and name changed to HF Sinclair