Holly Energy Partners, L.P. owns and operates petroleum product and crude pipelines, storage tanks, distribution terminals, loading rack facilities, and refinery processing units that support the refining and marketing operations of HollyFrontier Corporation in West Texas, New Mexico, Utah, Nevada, Oklahoma, Wyoming, Kansas, Arizona, Idaho, and Washington. It operates through two segments, Pipelines and Terminals, and Refinery Processing Units. The company operates refined product pipelines that transport conventional gasolines, reformulated gasolines, and low-octane gasolines for oxygenate blending, as well as distillates, such as high- and low-sulfur diesel and jet fuels, and liquefied petroleum gases; intermediate product pipelines that transport intermediate feedstocks and crude oils; and oil trunk, gathering, and connection pipelines that delivers crude oil. It operates 26 main pipelines; crude gathering networks; 10 refined product terminals; 1 crude terminal; 31,800 track feet of rail storage; 7 locations with truck and/or rail racks; and tankages at 6 refining facility locations, as well as 5 refinery processing units. HEP Logistics Holdings, L.P. serves as the general partner of the company. Holly Energy Partners, L.P. was founded in 2004 and is based in Dallas, Texas.