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.

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.

Marathon Oil Corporation, an independent exploration and production company, engages in exploration, production, and marketing of crude oil and condensate, natural gas liquids, and natural gas in the United States and internationally. The company also produces and markets products manufactured from natural gas, such as liquefied natural gas and methanol. In addition, it owns and operates Sugarloaf gathering system, a natural gas pipeline. The company was formerly known as USX Corporation and changed its name to Marathon Oil Corporation in December 2001. Marathon Oil Corporation was founded in 1887 and is headquartered in Houston, Texas. As of November 22, 2024, Marathon Oil Corporation operates as a subsidiary of ConocoPhillips.

Matador Resources Company, an independent energy company, engages in the exploration, development, production, and acquisition of oil and natural gas resources in the United States. It operates through two segments, Exploration and Production; and Midstream. The company primarily holds interests in the Wolfcamp and Bone Spring plays in the Delaware Basin in Southeast New Mexico and West Texas. It also operates the Eagle Ford shale play in South Texas; and the Haynesville shale and Cotton Valley plays in Northwest Louisiana. In addition, the company conducts midstream operations in support of its exploration, development, and production operations. Further, it provides natural gas processing and oil transportation services; and oil, natural gas, and produced water gathering services, as well as produced water disposal services to third parties. The company sells natural gas to unaffiliated independent marketing companies and unaffiliated midstream companies. The company was formerly known as Matador Holdco, Inc. and changed its name to Matador Resources Company in August 2011. Matador Resources Company was founded in 2003 and is headquartered in Dallas, Texas.

SM Energy Company, an independent energy company, engages in the acquisition, exploration, development, and production of oil, gas, and natural gas liquids in the state of Texas. It has working interests in oil and gas producing wells in the Midland Basin and South Texas. The company was formerly known as St. Mary Land & Exploration Company and changed its name to SM Energy Company in May 2010. SM Energy Company was founded in 1908 and is headquartered in Denver, Colorado.

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.

Ring Energy, Inc., an independent oil and natural gas company, engages in the acquisition, exploration, development, and production of oil and natural gas properties. The company has interests in 56,711 net developed acres and 2,668 net undeveloped acres in Andrews, Gaines, Crane, Ector, Winkler, and Ward counties, Texas; and 8,751 net developed acres and 12,405 net undeveloped acres in Yoakum County, Texas and Lea County, New Mexico. It primarily sells its oil and natural gas production to end users, marketers, and other purchasers. The company was formerly known as Transglobal Mining Corp. and changed its name to Ring Energy, Inc. in March 2008. Ring Energy, Inc. was incorporated in 2004 and is headquartered in The Woodlands, Texas.

Battalion Oil Corporation, an independent energy company, engages in the acquisition, production, exploration, and development of onshore oil and natural gas assets in the United States. It holds interests in the Delaware Basin located in the counties of Pecos, Ward, Reeves, and Winkler, Texas. It serves independent marketers, and oil and natural gas and gas pipeline companies. The company was formerly known as Halcón Resources Corporation and changed its name to Battalion Oil Corporation in January 2020. Battalion Oil Corporation was founded in 1987 and is headquartered in Houston, Texas.