The Williams Companies, Inc. is a natural gas company. It primarily finds, produces, gathers, processes and transports natural gas. Its operations are concentrated in the Pacific Northwest, Rocky Mountains, Gulf Coast, the Eastern Seaboard, and the province of Alberta in Canada. Its activities are primarily operated through business segments, which include Exploration & Production, Gas Pipeline, Midstream Gas & Liquids, Gas Marketing Services and Other. Exploration & Production produces, develops and manages natural gas reserves. Gas Pipeline includes its interstate natural gas pipelines and pipeline joint venture investments organized under its wholly owned subsidiary, Williams Gas Pipeline Company, LLC (WGP). Midstream Gas & Liquids includes its natural gas gathering, treating and processing business. Gas Marketing Services manages its natural gas commodity risk through purchases, sales and other related transactions, under its wholly owned subsidiary Williams Gas Marketing, Inc.