On July 20, 2022, Thomas G. Creery, President, Renewables of HF Sinclair Corporation (the Corporation), notified the Board of Directors of the Corporation (the Board) that he will retire from all officer positions and as an employee of the Corporation and its subsidiaries effective July 31, 2022. Mr. Creery's responsibilities will be assumed by Michael C. Jennings, Chief Executive Officer of the Corporation, effective July 29, 2022.