Expand Energy Corporation is a natural gas exploration and production company headquartered in Oklahoma City. It was created in the merger between what was previously known as Chesapeake Energy Corporation and Southwestern Energy. In 2023, the company produced 3,470 MMcf of natural gas per day. As of December 31, 2023, the company had 9,688 Bcf of proved reserves. The company operates in the Appalachian Basin of the Marcellus Formation in Pennsylvania and West Virginia, as well as the Haynesville Shale in Northwestern Louisiana. The company also controls 2,518,519 net undeveloped acres in New Brunswick, Canada, which are subject to an indefinite moratorium on hydraulic fracturing due to public opposition and cannot be developed. Wikipedia