Expand Energy Corporation, an independent entity within the United States energy sector, focuses on the acquisition, exploration, and development of properties to extract crude oil, natural gas, and natural gas liquids from subsurface reservoirs. Founded in 1989 and based in Oklahoma City, Oklahoma, the company was formerly known as Chesapeake Energy Corporation until it rebranded in October 2024. As of the end of 2023, its asset portfolio included significant stakes in onshore U.