Expand Energy Corporation operates as an independent exploration and production company in the United States. It engages in acquisition, exploration, and development of properties to produce oil, natural gas, and natural gas liquids from underground reservoirs. The company holds interests in natural gas resource plays in the Marcellus Shale in the northern Appalachian Basin in Pennsylvania and the Haynesville/Bossier Shales in northwestern Louisiana. As of December 31, 2023, the company owns a portfolio of onshore U.S. unconventional natural gas assets, including interests in approximately 5,000 natural gas wells. The company was formerly known as Chesapeake Energy Corporation and changed its name to Expand Energy Corporation in October 2024. Expand Energy Corporation was founded in 1989 and is based in Oklahoma City, Oklahoma.

Devon Energy Corporation, an independent energy company, engages in the exploration, development, and production of oil, natural gas, and natural gas liquids in the United States. It operates in Delaware, Eagle Ford, Anadarko, Williston, and Powder River Basins. The company was founded in 1971 and is headquartered in Oklahoma City, Oklahoma.

Coterra Energy Inc., an independent oil and gas company, engages in the development, exploration, and production of oil, natural gas, and natural gas liquids in the United States. The company's properties include the Marcellus Shale with approximately 186,000 net acres in the dry gas window of the play located in Susquehanna County, Pennsylvania; Permian Basin properties with approximately 296,000 net acres located in west Texas and southeast New Mexico; and Anadarko Basin properties with approximately 182,000 net acres located in Oklahoma. It also operates natural gas and saltwater gathering and disposal systems in Texas. The company sells its natural gas to industrial customers, local distribution companies, oil and gas marketers, major energy companies, pipeline companies, and power generation facilities. Coterra Energy Inc. was incorporated in 1989 and is headquartered in Houston, Texas.

Comstock Resources, Inc., an independent energy company, engages in the acquisition, exploration, development, and production of natural gas and oil properties in the United States. Its assets are located in the Haynesville and Bossier shales located in North Louisiana and East Texas. The company was incorporated in 1919 and is headquartered in Frisco, Texas. Comstock Resources, Inc. is a subsidiary of Arkoma Drilling, L.P.

Gulfport Energy Corporation engages in the acquisition, exploration, development, and production of natural gas, crude oil, and natural gas liquids in the United States. Its principal properties include Utica and Marcellus in eastern Ohio; and the SCOOP Woodford and Springer formations in central Oklahoma. The company was incorporated in 1997 and is headquartered in Oklahoma City, Oklahoma.

Northern Oil and Gas, Inc., an independent energy company, engages in the acquisition, exploration, exploitation, development, and production of crude oil and natural gas properties in the United States. It primarily holds interests in the Williston Basin, the Appalachian Basin, and the Permian Basin in the United States. The company is based in Minnetonka, Minnesota.

Epsilon Energy Ltd., a North American onshore independent natural gas and oil company, engages in the acquisition, development, gathering, and production of natural oil and gas reserves in the United States. The company operates through Upstream and Gathering System segments. It has natural gas production in the Marcellus Shale in Pennsylvania; and oil, natural gas liquids, and natural gas production in the Permian Basin in Texas and New Mexico, and Anadarko Basin in Oklahoma. Epsilon Energy Ltd. was incorporated in 2005 and is based in Calgary, Canada.

U.S. Energy Corp., an independent energy company, focuses on the acquisition, exploration, and development of oil and natural gas properties in the United States. It holds interests in various oil and gas properties located in the Rockies region, including Montana, Wyoming, and North Dakota; the Mid-Continent region comprising Oklahoma, Kansas, and North and East Texas; West Texas; South Texas; and the Gulf Coast regions. The company was incorporated in 1966 and is headquartered in Houston, Texas.