Antero Resources Corporation, an independent oil and natural gas company, engages in the development, production, exploration, and acquisition of natural gas, natural gas liquids (NGLs), and oil properties in the United States. It operates in three segments: Exploration and Development; Marketing; and Equity Method Investment in Antero Midstream. As of December 31, 2023, the company had approximately 515,000 net acres in the Appalachian Basin; and approximately 172,000 net acres in the Upper Devonian Shale. Its gathering and compression systems also comprise 631 miles of gas gathering pipelines in the Appalachian Basin. The company was formerly known as Antero Resources Appalachian Corporation and changed its name to Antero Resources Corporation in June 2013. Antero Resources Corporation was incorporated in 2002 and is headquartered in Denver, Colorado.

CNX Resources Corporation, an independent natural gas and midstream company, engages in the acquisition, exploration, development, and production of natural gas properties in the Appalachian Basin. The company operates in two segments, Shale and Coalbed Methane (CBM). It produces and sells pipeline quality natural gas primarily for gas wholesalers. The company owns rights to extract natural gas from shale properties in Pennsylvania, West Virginia, and Ohio, as well as rights to extract natural gas from other shale and shallow oil and gas formations in Illinois, Indiana, New York, and Virginia. It also owns rights to extract CBM in Virginia, West Virginia, Pennsylvania, Ohio, Illinois, Indiana, and New Mexico. In addition, the company designs, builds, and operates natural gas gathering systems to move gas from the wellhead to interstate pipelines or other local sales points; owns and operates approximately 2,600 miles of natural gas gathering pipelines, as well as various natural gas processing facilities. It also offers turn-key solutions for water sourcing, delivery, and disposal for its natural gas operations and for third parties. The company was formerly known as CONSOL Energy Inc. and changed its name to CNX Resources Corporation in November 2017. CNX Resources Corporation was founded in 1860 and is headquartered in Canonsburg, Pennsylvania.

Kinetik Holdings Inc. operates as a midstream company in the Texas Delaware Basin. The company operates through two segments, Midstream Logistics and Pipeline Transportation. It provides gathering, transportation, compression, processing, stabilization, treating, storage, and transportation services for companies that produce natural gas, natural gas liquids, and crude oil; and water gathering and disposal services. The company was founded in 2017 and is based in Houston, Texas.

Summit Midstream Corporation focuses on owning, developing, and operating midstream energy infrastructure assets primarily shale formations in the continental United States. It operates natural gas, crude oil, and produced water gathering systems in four unconventional resource basins, including the Williston Basin in North Dakota, which includes the Bakken and Three Forks shale formations; the Denver-Julesburg Basin that consists of the Niobrara and Codell shale formations in Colorado and Wyoming; the Fort Worth Basin in Texas, which comprises the Barnett Shale formation; and the Piceance Basin in Colorado, which includes the Mesaverde formation, as well as the emerging Mancos and Niobrara Shale formations. It serves natural gas and crude oil producers. Summit Midstream Corporation was founded in 2012 and is based in Houston, Texas.

Pure Cycle Corporation provides wholesale water and wastewater services in the United States. It operates in two segments, Wholesale Water and Wastewater Services; and Land Development. The company engages in the wholesale water production, storage, treatment, and distribution systems; wastewater collection and treatment systems; development of master-planned community; and construction and leasing of single-family homes. It serves domestic, commercial, and industrial customers. The company was incorporated in 1976 and is based in Watkins, Colorado.

Equitrans Midstream Corporation owns, operates, acquires, and develops midstream assets in the Appalachian Basin. The company operates through Gathering, Transmission, and Water segments. It operates dry gas gathering systems of high-pressure gathering lines and FERC-regulated interstate pipelines and storage systems. In addition, the company operates water pipelines and other facilities that deliver fresh water from local municipal water authorities, the Monongahela River, the Ohio River, local reservoirs, and several regional waterways. Equitrans Midstream Corporation was incorporated in 2018 and is headquartered in Canonsburg, Pennsylvania.

Summit Midstream Partners, LP focuses on owning, developing, and operating midstream energy infrastructure assets primarily shale formations in the continental United States. The company provides natural gas gathering, compression, treating, and processing services, as well as crude oil and produced water gathering and freshwater delivery services. Its assets include Summit Utica system comprising the Utica and Point Pleasant shale formations in southeastern Ohio; Mountaineer Midstream system that includes the Marcellus shale in the Appalachian Basin in West Virginia; Polar and Divide system includes the Bakken and Three Forks shale formations in northwestern North Dakota; Niobrara G&P system, which comprises the Niobrara and Codell shale formations located near Hereford, Colorado. The company's assets also include Double E, a 135 mile interstate natural gas transmission pipeline; Grand River system that gathers natural gas produced from the Mancos and Niobrara shale formations in western Colorado; and DFW Midstream system comprising the Barnett Shale formation located in north-central Texas. In addition, it owns an ownership interest in Ohio Gathering, which owns and operates natural gas gathering and condensate stabilization facility in the Utica Shale in southeastern Ohio. It serves natural gas and crude oil producers. Summit Midstream GP, LLC operates as a general partner of the company. Summit Midstream Partners, LP was founded in 2009 and is based in Houston, Texas.

Enservco Corporation, through its subsidiaries, provides hot oiling and acidizing, and frac water heating services to the onshore oil and natural gas industry. It also water hauling and well site construction services. The company owns and operates specialized trucks, trailers, frac tanks, and other well-site related equipment. It operates in the DJ Basin/Niobrara area in Colorado and Wyoming; the San Juan Basin in northwestern New Mexico; the Marcellus and Utica Shale areas in Pennsylvania and Ohio; the Jonah area, Green River and Powder River Basins in Wyoming; and the Eagle Ford Shale and East Texas Oilfield in Texas. The company was incorporated in 1980 and is headquartered in Longmont, Colorado.