The Williams Companies, Inc., together with its subsidiaries, operates as an energy infrastructure company primarily in the United States. It operates through Transmission & Gulf of Mexico, Northeast G&P, West, and Gas & NGL Marketing Services segments. The Transmission & Gulf of Mexico segment comprises natural gas pipelines; Transco, Northwest pipeline, MountainWest, and related natural gas storage facilities; and natural gas gathering and processing, and crude oil production handling and transportation assets in the Gulf Coast region. The Northeast G&P segment engages in the midstream gathering, processing, and fractionation activities in the Marcellus Shale region primarily in Pennsylvania and New York, and the Utica Shale region of eastern Ohio. The West segment consists of gas gathering, processing, and treating operations in the Rocky Mountain region of Colorado and Wyoming, the Barnett Shale region of north-central Texas, the Eagle Ford Shale region of South Texas, the Haynesville Shale region of northwest Louisiana, the Mid-Continent region that includes the Anadarko and Permian basins, and the DJ Basin of Colorado; and operates natural gas liquid (NGL) fractionation and storage facilities in central Kansas near Conway. The Gas & NGL Marketing Services segment provides wholesale marketing, trading, storage, and transportation of natural gas for natural gas utilities, municipalities, power generators, and producers; asset management services; and transports and markets NGLs. The company owns and operates 33,000 miles of pipelines. The Williams Companies, Inc. was founded in 1908 and is headquartered in Tulsa, Oklahoma.

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.

EnLink Midstream, LLC provides midstream energy services in the United States. The company operates through Permian, Louisiana, Oklahoma, North Texas, and Corporate segments. It is involved in gathering, compressing, treating, processing, transporting, storing, and selling natural gas; fractionating, transporting, storing, and selling natural gas liquids; and gathering, transporting, stabilizing, storing, trans-loading, and selling crude oil and condensate, as well as providing brine disposal services. In addition, the company's midstream energy asset network includes natural gas processing plants; fractionators; barge and rail terminals; product storage facilities; and brine disposal wells. EnLink Midstream, LLC was incorporated in 2013 and is based in Dallas, Texas.

Hess Midstream LP owns, develops, operates, and acquires midstream assets and provide fee-based services to Hess and third-party customers in the United States. It operates through three segments: Gathering; Processing and Storage; and Terminaling and Export. The Gathering segment owns natural gas gathering and compression systems; crude oil gathering systems; and produced water gathering and disposal facilities. Its gathering systems consists of approximately 1,410 miles of high and low pressure natural gas and natural gas liquids gathering pipelines with capacity of approximately 660 million cubic feet per day; crude oil gathering system comprises approximately 570 miles of crude oil gathering pipelines; and produced water gathering system that includes approximately 300 miles of pipelines in gathering systems. The Processing and Storage segment comprises Tioga Gas Plant, a natural gas processing and fractionation plant located in Tioga, North Dakota; a 50% interest in the Little Missouri 4 gas processing plant located in south of the Missouri River in McKenzie County, North Dakota; and Mentor Storage Terminal, a propane storage cavern and rail, and truck loading and unloading facility located in Mentor, Minnesota. The Terminaling and Export segment owns Ramberg terminal facility; Tioga rail terminal; crude oil rail cars; and other Dakota access pipeline connections, as well as Johnson's Corner Header System, a crude oil pipeline header system. Hess Midstream LP was founded in 2014 and is based in Houston, Texas.

BKV Corporation engages in the acquisition, development, and operation of natural gas and natural gas liquid properties located in the Barnett Shale in the Fort Worth Basin of Texas and in the Marcellus Shale in the Appalachian Basin of Northeastern Pennsylvania. It is also involved in the gathering, processing, and transportation of natural gas; power generation; and carbon capture, utilization, and sequestration. The company was founded in 2015 and is headquartered in Denver, Colorado. BKV Corporation is a subsidiary of Banpu North America Corporation.

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.

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.