The Williams Companies, Inc. (Williams) is an energy infrastructure company focused on connecting North America�s hydrocarbon resource plays to markets for natural gas, natural gas liquids (NGLs), and olefins. Its operations span from the deepwater Gulf of Mexico to the Canadian oil sands. It operates in three segments: Williams Partners, Midstream Canada & Olefins and Other. Its interstate gas pipeline and domestic midstream interests are held through its investment in Williams Partners L.P. (WPZ). It owns the general-partner interest and a 70% limited-partner interest in WPZ. Williams also owns a Canadian midstream and domestic olefins production business, which processes oil sands off-gas and produces olefins for petrochemical feedstocks. In November 2012, Williams Partners LP acquired Williams Companies Inc's approximately 83% interest in the Geismar olefins production facility In December 2012, it acquired Access Midstream Partners GP, L.L.C. and Access Midstream Partners LP.