Western Midstream Partners LP operates gathering pipelines, processing plants, and transportation infrastructure. Subsidiaries include MIGC. Common units are listed on the NYSE (WES) exchange.
Western Gas formed in 2007 and spun off from Anadarko Petroleum in 2008 as a master limited partnership to acquire, own, develop and operate midstream energy assets. Western Gas Equity Partners acquired the publicly-traded units of another master limited partnership, Western Gas Partners, in 2019 and was renamed Western Midstream. Oxy signed agreements in 2020 that allow Western Midstream to function independently.