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.

Magnolia Oil & Gas Corporation, an independent oil and natural gas company, engages in the acquisition, development, exploration, and production of oil, natural gas, and natural gas liquids reserves in the United States. Its properties are located primarily in Karnes County and the Giddings area in South Texas principally comprising the Eagle Ford Shale and the Austin Chalk formation. The company was incorporated in 2017 and is headquartered in Houston, Texas.

HighPeak Energy, Inc., an independent oil and natural gas company, engages in the exploration, development, and production of crude oil, natural gas, and natural gas liquids reserves in the Permian Basin in West Texas and Eastern New Mexico. The company was incorporated in 2019 and is headquartered in Fort Worth, Texas.

Prairie Operating Co., an independent energy company, engages in the development, exploration, and production of oil, natural gas, and natural gas liquids in the United States. The company holds assets in the Denver-Julesburg Basin in Colorado; and the Niobrara and Codell formations. Prairie Operating Co. is based in Houston Texas.

Houston American Energy Corp., an independent oil and gas company, engages in the acquisition, exploration, exploitation, development, and production of natural gas, crude oil, and condensate. Its principal properties are located primarily in the Texas Permian Basin, the South American country of Colombia, and the onshore Louisiana Gulf Coast region. The company is based in Houston, Texas.

Callon Petroleum Company, an independent oil and natural gas company, focuses on the acquisition, exploration, and development of oil and natural gas properties in West Texas. Callon Petroleum Company was founded in 1950 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.