Expand Energy Corporation, an independent energy firm with its headquarters in Oklahoma City, Oklahoma, was established in 1989. Operating across the United States, its primary business involves the acquisition, exploration, and development of properties for the extraction of crude oil, natural gas, and natural gas liquids from subterranean deposits. The company boasts significant holdings in major natural gas plays, specifically the Marcellus Shale in Pennsylvania's northern Appalachian Basin and the Haynesville/Bossier Shales situated in northwestern Louisiana.