ABOUT HF SINCLAIR MIDSTREAM (HFSM)

HF Sinclair Midstream (HFSM) is a Delaware limited partnership, formed in 2004 by HollyFrontier, and headquartered in Dallas, Texas. HFSM provides petroleum product and crude oil transportation, terminalling, storage, and throughput services to the petroleum industry, including HollyFrontier Corporation subsidiaries. This Partnership, through its subsidiaries and joint ventures, owns and/or operates petroleum product and crude gathering pipelines, tankage, and terminals in Texas, Oklahoma, Kansas, Missouri, New Mexico, Colorado, Wyoming, Utah, Nevada, Idaho, and Washington, as well as refinery processing units in Kansas, Utah, and Washington.

The Frontier-Wahsatch Response Zone consists of pipelines that transport crude oil in Wyoming and northern Utah, as well as associated pumping stations and infrastructure.  This includes the Aspen to North Salt Lake 16-inch diameter interstate crude oil pipeline that extends from Aspen Station in Summit County, Utah to North Salt Lake, Utah.  The pipeline, with a capacity of 72,000 barrels per day, delivers crude oil to refineries in the Salt Lake City, Utah area.