HF Sinclair Stockholders, Holly Energy Partners Unitholders Approve Merger Transaction

HF Sinclair Corporation (NYSE:DINO) ("HF Sinclair") and Holly Energy Partners, L.P. ("HEP") (NYSE:HEP)announced that at a special meeting of HEP unitholders (the "HEP Special Meeting") and a special meeting of HF Sinclair stockholders (the "HF Sinclair Special Meeting"), each held today, (i) HEP unitholders voted to approve the previously announced Agreement and Plan of Merger (as the same may be amended or supplemented from time to time, the "Merger Agreement"), dated as of August 15, 2023, by and among HF Sinclair, Navajo Pipeline Co., L.P., Holly Apple Holdings LLC ("Merger Sub"), HEP Logistics Holdings, L.P., Holly Logistic Services, L.L.C. and HEP, and the transactions contemplated thereby, including the merger of Merger Sub with and into HEP, with HEP surviving as an indirect wholly owned subsidiary of HF Sinclair (the "Merger"), at the HEP Special Meeting and (ii) HF Sinclair stockholders voted to approve the issuance of shares of common stock, par value $0.01 per share, of HF Sinclair (the "Stock Issuance") pursuant to the Merger Agreement at the HF Sinclair Special Meeting.