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, and trucks. As of December 31, 2020, this segment owned and leased assets comprising 18,370 miles of crude oil and NGL pipelines and gathering systems; 35 million barrels of above-ground tank capacity; and 815 trailers. 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. As of December 31, 2020, this segment owned and operated approximately 75 million barrels of crude oil storage capacity; 28 million barrels of NGL storage capacity; 68 billion cubic feet (Bcf) of natural gas storage capacity; 26 Bcf of base gas; 5 natural gas processing plants; a condensate processing facility; 8 fractionation plants; 22 crude oil and NGL rail terminals; 5 marine facilities; and 330 miles of pipelines. The Supply and Logistics segment engages in the purchase, logistics, and resale of crude oil and NGL. As of December 31, 2020, 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; 680 trucks and 840 trailers; and 6,000 crude oil and NGL railcars. The company offers logistics services to producers, refiners, and other customers. 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.