PAA vs WMB

Plains All American Pipeline L.P.

Plains All American Pipeline, L.P., through its subsidiaries, engages in the pipeline transportation, terminalling, storage, and gathering of crude oil and natural gas liquids (NGL) in the United States and Canada. The company operates through three segments: Transportation, Facilities, and Supply and Logistics. The Transportation segment transports crude oil and NGL through pipelines, gathering systems, and trucks. As of December 31, 2020, this segment owned and leased 18,370 miles of active crude oil and NGL pipelines and gathering systems; 35 million barrels of active and above-ground tank capacity; and 815 trailers. The Facilities segment provides storage, terminalling, and throughput services for crude oil, NGL, and natural gas; and NGL fractionation and isomerization, 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 working capacity; 25 Bcf of base gas; five natural gas processing plants; a condensate processing facility; eight fractionation plants; 22 crude oil and NGL rail terminals; five marine facilities; and approximately 330 miles of active 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; 680 trucks and 840 trailers; and 6,000 crude oil and NGL railcars. The company was incorporated in 1998 and is headquartered in Houston, Texas.

Williams Companies Inc.

The Williams Companies, Inc., together with its subsidiaries, operates as an energy infrastructure company primarily in the United States. It operates through Transmission & Gulf of Mexico, Northeast G&P, and West segments. The Transmission & Gulf of Mexico segment comprises Transco and Northwest natural gas pipelines; and natural gas gathering and processing, and crude oil production handling and transportation assets in the Gulf Coast region. The Northeast G&P segment engages in the midstream gathering, processing, and fractionation activities in the Marcellus Shale region primarily in Pennsylvania and New York, and the Utica Shale region of eastern Ohio. The West segment comprises gas gathering, processing, and treating operations in the Rocky Mountain region of Colorado and Wyoming, the Barnett Shale region of north-central Texas, the Eagle Ford Shale region of South Texas, the Haynesville Shale region of northwest Louisiana, and the Mid-Continent region, which includes the Anadarko, Arkoma, and Permian basins; and natural gas liquid (NGL) and natural gas marketing operations, as well as storage facilities. The company owns and operates 30,000 miles of pipelines, 34 processing facilities, 9 fractionation facilities, and approximately 23 million barrels of NGL storage capacity. The Williams Companies, Inc. was founded in 1908 and is headquartered in Tulsa, Oklahoma.