NOV Inc. designs, constructs, manufactures, and sells systems, components, and products for oil and gas drilling and production, and industrial and renewable energy sectors in the United States and internationally. It operates through two segments, Energy Equipment, and Energy Products and Services. The company provides solids control and waste management equipment and services, managed pressure drilling, drilling fluids, premium drillpipe, wired pipe, drilling optimization services, tubular inspection and coating services, instrumentation, downhole tools, and drill bits. It also offers equipment and technologies for hydraulic fracture stimulation, including downhole multistage fracturing tools, pressure pumping trucks, blenders, sanders, hydration and injection units, flowline, and manifolds; coiled tubing units, and wireline units and tools; connections and liner hangers; onshore production consists of composite pipe, surface transfer and progressive cavity pumps, and artificial lift systems; and offshore production, such as floating production systems and subsea production technologies, as well as manufactures industrial pumps and mixers. In addition, the company provides substructures, derricks, and masts; cranes; jacking systems; pipe lifting, racking, rotating, and assembly systems; mud pumps; pressure control equipment; drives and generators; rig instrumentation and control systems; mooring, anchor, and deck handling machinery; equipment components for offshore wind construction vessels; and pipelay and construction systems. Further, the company offers spare parts, repair, and rentals as well as comprehensive remote equipment monitoring, technical support, field service, and customer training. The company was formerly known as National Oilwell Varco, Inc. and changed its name to NOV Inc. in January 2021. NOV Inc. was founded in 1862 and is based in Houston, Texas.

Archrock, Inc., together with its subsidiaries, operates as an energy infrastructure company in the United States. The company operates in two segments, Contract Operations and Aftermarket Services. It engages in the designing, sourcing, owning, installing, operating, servicing, repairing, and maintaining of its owned fleet of natural gas compression equipment to provide natural gas compression services. The company also sells over-the-counter parts and components; and provides operations, major and routine maintenance, overhaul, and reconfiguration services to customers who own compression equipment. It serves integrated and independent oil and natural gas processors, gatherers, and transporters. The company was formerly known as Exterran Holdings, Inc. and changed its name to Archrock, Inc. in November 2015. Archrock, Inc. was founded in 1990 and is headquartered in Houston, Texas.

Select Water Solutions, Inc., together with its subsidiaries, provides water management and chemical solutions to the energy industry in the United States. The company operates through three segments: Water Services, Water Infrastructure, and Chemical Technologies. The Water Services segment provides water-related services, including water sourcing, water transfer, flowback and well testing, water containment, fluids hauling, water monitoring, and water network automation; technology solutions comprising hydrographic mapping, water volume and quality monitoring, remote pit and tank monitoring, leak detection, asset and fuel tracking, and automated-equipment services, as well as various surface rental equipment and workforce accommodation services. The Water Infrastructure segment engages in the recycling, gathering, transferring, and disposal of water through a network of permanent pipeline infrastructure, semi-permanent pipeline infrastructure, water recycling facilities, earthen pits, water sources, and SWDs; provides solids management services; and develops, builds, and operates semi-permanent and permanent infrastructure solutions. The Chemical Technologies segment provides technical solutions, products, and services related to chemical applications in the oil and gas industry. This segment develops, manufactures, and manages logistics; and provides chemicals used in hydraulic fracturing, stimulation, cementing, and well completions for pressure pumpers and oil and gas producers, as well as offers production chemical solutions for underperforming wells, corrosion and scale monitoring, chemical inventory management, well failure analysis, and lab services. It primarily serves oil and gas producers. The company was formerly known as Select Energy Services, Inc. and changed its name to Select Water Solutions, Inc. in May 2023. Select Water Solutions, Inc. was incorporated in 2016 and is headquartered in Houston, Texas.

Forum Energy Technologies, Inc. designs, manufactures, and distributes products serving the oil, natural gas, industrial, and renewable energy industries in the United States and internationally. It operates through three segments: Drilling & Downhole, Completions, and Production. The Drilling & Downhole segment designs, manufactures, and supplies products, and provides related services to the drilling, well construction, artificial lift, and subsea energy construction and services markets, including applications in oil and natural gas, renewable energy, defense, and communications. This segment offers drilling technologies consisting of capital equipment and a line of products consumed in the drilling process; well construction casing and cementing equipment, and products for artificial lift equipment and cables; and subsea remotely operated vehicles and trenchers, submarine rescue vehicles, specialty components and tools, and technical services. The Completions segment offers hydraulic fracturing pumps, cooling systems, high-pressure flexible hoses, and flow iron for pressure pumping markets; wireline cable and pressure control equipment for well completion and intervention service markets; and coiled tubing strings and coiled line pipe and related services. The Production segment designs, manufactures, and supplies products, and provides related equipment and services for production and infrastructure markets. This segment offers engineered process systems, production equipment, specialty separation equipment, and various industrial valves for oil and natural gas customers, power generation, renewable energy, and other general industrial applications. The company was formerly known as Forum Oilfield Technologies, Inc. and changed its name to Forum Energy Technologies, Inc. in August 2010. Forum Energy Technologies, Inc. was incorporated in 2005 and is headquartered in Houston, 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.

NCS Multistage Holdings, Inc. provides engineered products and support services for oil and natural gas well completions and construction, and field development strategies in the United States, Canada, and internationally. It offers fracturing systems, which include casing-installed sliding sleeves, downhole frac isolation assemblies, and sand jet perforating products; enhanced recovery products, such as sliding sleeve, as well as Terrus system, an injection control device; repeat precision products comprising composite frac plugs and bridge plugs, single-use disposable setting tools, express systems, and related products; chemical and radioactive tracer diagnostics services; and well construction products, including AirLock casing buoyancy system, Vecturon and Vectraset liner hanger systems, and Toe initiation sleeves. It offers its products and services primarily to exploration and production companies for use in onshore wells through technically-trained sales force, and operating partners or sales representatives. The company was formerly known as Pioneer Super Holdings, Inc. and changed its name to NCS Multistage Holdings, Inc. in December 2016. NCS Multistage Holdings, Inc. was founded in 2006 and is headquartered in Houston, Texas.

Sunnova Energy International Inc. engages in the provision of energy as a service in the United States. The company offers electricity, as well as offers operations and maintenance, monitoring, repairs and replacements, equipment upgrades, on-site power optimization, and solar energy system and energy storage system diagnostics services. As of December 31, 2023, it operated a fleet of residential solar energy systems with a generation capacity of approximately 2,292 megawatts serving over 419,000 customers. The company was incorporated in 2012 and is headquartered in Houston, Texas.

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.