Plains GP Holdings, L.P. owns and operates midstream energy infrastructure in the United States and Canada. It operates through three segments: Transportation, Facilities, and Supply and Logistics. The Transportation segment engages in the transportation of crude oil and natural gas liquids (NGLs) on pipelines, gathering systems, trucks, and barges. As of December 31, 2019, it owned and leased assets comprising 18,535 miles of crude oil and NGL pipelines and gathering systems; 35 million barrels of above-ground tank capacity; 825 trailers; 50 transport and storage barges; and 20 transport tugs. The Facilities segment engages in the provision of storage, terminalling, and throughput services primarily for crude oil, NGLs, and natural gas; NGL fractionation and isomerization services; and natural gas and condensate processing services. This segment owned and operated approximately 79 million barrels of crude oil storage capacity; 34 million barrels of NGL storage capacity; 63 billion cubic feet of natural gas storage capacity; 25 billion cubic feet of base gas; seven natural gas processing plants; a condensate processing facility; eight fractionation plants; 30 crude oil and NGL rail terminals; six marine facilities; and 430 miles of pipelines. The Supply and Logistics segment engages in merchant-related activities, including purchase of crude oil, as well as NGL from producers, refiners, processors, and other marketers; storage of NGL and natural gas; and resale and transport of crude oil and NGL. This segment owned 16 million barrels of crude oil and NGL linefill; 4 million barrels of crude oil and NGL linefill in pipelines owned by third parties and other inventory; 760 trucks and 900 trailers; and 8,000 crude oil and NGL railcars. The company offers logistics services, primarily for crude oil, NGLs, and natural gas. PAA GP Holdings LLC operates as a general partner of the company. Plains GP Holdings, L.P. was founded in 2013 and is headquartered in Houston, Texas.