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.

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.

Patterson-UTI Energy, Inc., through its subsidiaries, engages in the provision of contract drilling services to oil and natural gas operators in the United States and internationally. It operates through three segments: Drilling Services, Completion Services, and Drilling Products. The Contract Drilling Services segment provides contract and directional drilling services in onshore oil and natural gas basins, as well as engages in the service and re-certification of equipment for drilling contractors, and provision of electrical controls and automation to the energy, marine and mining industries. The Completion Services segment offers services for hydraulic fracturing, wireline and pumping, completion support, and cementing; and involved in the power solutions natural gas fueling, and logistics and storage businesses. The Drilling Products segment manufactures and distributes drill bits for energy and mining markets. It also provides software and services, such as MWD Survey FDIR, a data analytics technology to analyze MWD survey data in real-time and identify the position of a well; HiFi Nav, which enhances FDIR by targeting improved vertical placement of the directional well within the reservoir; HiFi Guidance, utilizes trajectory optimization to determine optimal steering recommendations and placement within the reservoir; and rents oilfield tools. The company was founded in 1978 and is headquartered in Houston, Texas.

ProPetro Holding Corp. operates as an integrated oilfield services company. The company provides hydraulic fracturing, wireline, cementing, and other complementary oilfield completion services to upstream oil and gas companies in the Permian Basin. ProPetro Holding Corp. was founded in 2007 and is headquartered in Midland, Texas.

Smart Sand, Inc., an integrated frac and industrial sand supply and services company, engages in the excavation, processing, and sale of sands or proppant for use in hydraulic fracturing operations in the oil and gas industry in the United States. It also provides proppant logistics services; and wellsite storage solutions through SmartSystems products and services. The company sells its products primarily to oil and natural gas exploration and production companies, oilfield service companies, and industrial manufacturers. Smart Sand, Inc. was incorporated in 2011 and is headquartered in Spring, Texas.

Stabilis Solutions, Inc., together with its subsidiaries, an energy transition company, provides clean energy production, storage, transportation, and fueling solutions primarily using liquefied natural gas (LNG) to various end markets in North America. The company offers LNG solutions to customers in aerospace, agriculture, energy, industrial, marine bunkering, mining, pipeline, remote power, and utility markets. It also provides engineering and field support services, as well as rents cryogenic equipment. The company was founded in 2013 and is headquartered in Houston, Texas. Stabilis Solutions, Inc. is a subsidiary of LNG Investment Company LLC.

Solaris Oilfield Infrastructure, Inc. designs and manufactures specialized equipment for oil and natural gas operators in the United States. The company provides mobile proppant and fluid management systems, as well as last mile logistics management services. It offers systems, mobilization, and last mile logistics services that are used to unload, store, and deliver proppant, water and/or chemicals at oil and natural gas well sites. The company is also involved in the transloading and storage of proppant or railcars at its transloading facility. In addition, it develops Railtronix, an inventory management software; and all-electric equipment that automates the low pressure section of oil and gas well completion sites. The company serves exploration and production, and oilfield services industries. Solaris Oilfield Infrastructure, Inc. was founded in 2014 and is headquartered in Houston, Texas.

Adams Resources & Energy, Inc., through its subsidiaries, primarily engages in the marketing, transportation, terminalling, and storage of crude oil and other related products in the United States. The company operates through four segments: Crude Oil Marketing, Transportation, Pipeline and Storage, and Logistics and Repurposing. It purchases and sells crude oil to refiners and other customers primarily onshore in Texas, North Dakota, Michigan, Wyoming, Colorado, and Louisiana; owns and operates a fleet of 164 tractor-trailer rigs; and maintains pipeline inventory locations and injection stations. The company also transports liquid chemicals, pressurized gases, asphalt, and dry bulk on a hire basis in the United States, Canada, and Mexico; and operates truck terminals in Houston, Corpus Christi, Nederland, Freeport, Baton Rouge, St. Rose, Sterlington, Jacksonville, Tampa, Augusta, Mobile, Charlotte, Cincinnati, South Charleston, Memphis, East St. Louis, and Joliet. In addition, it operates crude oil and condensate pipeline system, which connects the Eagle Ford Basin to the Gulf Coast waterborne market; and transports crude oil, condensate, fuels, oils, and other petroleum products on a for hire basis in the Eagle Ford basin. The company was founded in 1947 and is headquartered in Houston, Texas.