On December 1, 2023, Holly Energy Partners, L.P. merged with, and is now, a wholly owned subsidiary of HF Sinclair Corporation, headquartered in Dallas, Texas, doing business as HF Sinclair Midstream. HF Sinclair Midstream provides petroleum product and crude oil transportation, terminalling, storage and throughput services to HF Sinclair’s refineries and the petroleum industry. HF Sinclair Midstream owns and/or operates petroleum product and crude gathering pipelines, tankage and terminals in Texas, New Mexico, Washington, Idaho, Oklahoma, Utah, Nevada, Wyoming and Kansas.