Diamondback Energy, Inc., an independent oil and natural gas company, acquires, develops, explores, and exploits unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas. It focuses on the development of the Spraberry and Wolfcamp formations of the Midland basin; and the Wolfcamp and Bone Spring formations of the Delaware basin, which are part of the Permian Basin in West Texas and New Mexico. The company also owns and operates midstream infrastructure assets, in the Midland and Delaware Basins of the Permian Basin. Diamondback Energy, Inc. was founded in 2007 and is headquartered in Midland, Texas.

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.

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.

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.

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.

Chesapeake 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. Chesapeake Energy Corporation was founded in 1989 and is based in Oklahoma City, Oklahoma.

Pioneer Natural Resources Company operates as an independent oil and gas exploration and production company in the United States. The company explores for, develops, and produces oil, natural gas liquids (NGLs), and gas. It has operations in the Midland Basin in West Texas. The company was founded in 1997 and is headquartered in Irving, Texas.