ChampionX Corporation provides chemistry solutions, artificial lift systems, and engineered equipment and technologies to oil and gas companies worldwide. The company operates through four segments: Production Chemical Technologies, Production & Automation Technologies, Drilling Technologies, and Reservoir Chemical Technologies. The Production Chemical Technologies segment offers onshore, offshore, and oil sands chemical solutions, such as corrosion inhibitors, scale inhibitors, emulsion breakers, and biocides to oil and natural gas production and midstream markets to manage and control corrosion, oil and water separation, flow assurance, sour gas treatment, and water-related issues. The Production & Automation Technologies segment provides artificial lift equipment, end-to-end digital automation solutions, and other production equipment and emissions monitoring solutions, including electrical submersible pumping systems, gas lift systems, jet pumps, multiplex surface pumps, plunger lift equipment, progressive cavity pumping systems, downhole rod lift systems, methane emissions monitoring solutions, chemical injection systems, flow control valves, and gauges under the Harbison-Fischer, Norris, Alberta Oil Tool, Oil Lift Technology, PCS Ferguson, Pro-Rod, Upco, Unbridled ESP, Norriseal-Wellmark, Quartzdyne, Spirit, Theta, Timberline, and Windrock brands. The Drilling Technologies segment offers polycrystalline diamond cutter inserts, bearings, valves, nozzles, and mining tools used in oil and gas drill bits under the US Synthetic brand; and high-density ceramic roof bolt mining tools for underground mining operations. The Reservoir Chemical Technologies segment provides chemistry-oriented solutions and technologies for well drilling, cementing, fracturing, acidizing, and other well interventions, as well as fracturing, drilling, cementing, acidizing additives. The company was founded in 1882 and is headquartered in The Woodlands, Texas.

Weatherford International plc, an energy services company, provides equipment and services for the drilling, evaluation, completion, production, and intervention of oil, geothermal, and natural gas wells worldwide. The company operates through three segments: Drilling and Evaluation; Well Construction and Completions; and Production and Intervention. It offers artificial lift systems, including reciprocating rod, progressing cavity pumping, gas, hydraulic, plunger, and hybrid lift systems, as well as related automation and control systems; pressure pumping and reservoir stimulation services, such as acidizing, fracturing, cementing, and coiled-tubing intervention; and software, automation and flow measurement solutions. The company also provides safety, downhole reservoir monitoring, flow control, and multistage fracturing systems, as well as sand-control technologies, and production and isolation packers; liner hangers to suspend a casing string in high-temperature and high-pressure wells; cementing products, including plugs, float and stage equipment, and torque-and-drag reduction technology for zonal isolation; and pre-job planning and installation services. In addition, it offers directional drilling services, and logging and measurement services while drilling; services related to rotary-steerable systems, high temperature and high pressure sensors, drilling reamers, and circulation subs; rotating control devices and advanced automated control systems, as well as closed loop drilling, air drilling, managed-pressure drilling, and underbalanced drilling services; open-hole and cased-hole logging services; and intervention and remediation services. Further, it provides tubular handling, management, and connection services; and re-entry, fishing, and well abandonment services, as well as patented bottom hole, tubular-handling equipment, pressure-control equipment, and drill pipe and collars. The company was incorporated in 1972 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.

Helix Energy Solutions Group, Inc., together with its subsidiaries, an offshore energy services company, provides specialty services to the offshore energy industry in Brazil, the Gulf of Mexico, the East Coast of the United States, North Sea, the Asia Pacific, and West Africa regions. The company operates through four segments: Well Intervention, Robotics, Production Facilities, and Shallow Water Abandonment segments. It engages in the installation of flowlines, control umbilicals, and manifold assemblies and risers; trenching and burial of pipelines; installation and tie-in of riser and manifold assembly; commissioning, testing, and inspection activities; and provision of cable and umbilical lay, and connection services. The company also provides well intervention, intervention engineering, and production enhancement services; coiled tubing operations; inspection, repair, and maintenance of production structures, trees, jumpers, risers, pipelines, and subsea equipment; and related support services. In addition, it offers reclamation and remediation services; well plug and abandonment services; pipeline, cable and umbilical abandonment services; and site inspections. Additionally, the company offers oil and natural gas processing facilities and services; and fast response system, as well as site clearance and subsea support services. Further, it provides offshore oilfield decommissioning and reclamation, project management, engineered solutions, intervention, maintenance, repair, heavy lift, and commercial diving services. It serves independent oil and gas producers and suppliers, pipeline transmission companies, renewable energy companies, and offshore engineering and construction firms. The company was formerly known as Cal Dive International, Inc. and changed its name to Helix Energy Solutions Group, Inc. in March 2006. Helix Energy Solutions Group, Inc. was incorporated in 1979 and is headquartered in Houston, Texas.

NGL Energy Partners LP engages in the transportation, storage, blending, and marketing of crude oil, natural gas liquids, refined products/renewables, and water solutions. The company operates through three segments: Water Solutions, Crude Oil Logistics, and Liquids Logistics. The Water Solutions segment transports, treats, recycles, and disposes produced and flowback water generated from crude oil and natural gas production; aggregates and sells recovered crude oil; disposes solids, such as tank bottoms, and drilling fluid and muds, as well as performs truck and frac tank washouts; and sells produced water for reuse and recycle, and brackish non-potable water. The Crude Oil Logistics segment purchases crude oil from producers and marketers, and transports it to refineries for resale at pipeline injection stations, storage terminals, barge loading facilities, rail facilities, refineries, and other trade hubs; and provides storage, terminaling, and transportation services through pipelines and storage tanks. The Liquids Logistics segment supplies natural gas liquids, refined petroleum products, and biodiesel to commercial, retail, and industrial customers in the United States and Canada through its 23 terminals, third-party storage and terminal facilities, and nine common carrier pipelines, as well as through a fleet of leased railcars. This segment also provides services for marine exports of butane through its facility located in Chesapeake, Virginia; and owns a propane pipeline in Michigan. NGL Energy Holdings LLC serves as the general partner of the company. The company was founded in 1940 and is headquartered in Tulsa, Oklahoma.

TETRA Technologies, Inc., together with its subsidiaries, operates as an energy services and solutions company. It operates through two segments, Completion Fluids & Products Division and Water & Flowback Services. The Completion Fluids & Products segment manufactures and markets clear brine fluids, additives, and associated products and services to the oil and gas industry for use in well drilling, completion, and workover operations in the United States, as well as in Latin America, Europe, Asia, the Middle East, and Africa. This segment also markets liquid and dry calcium chloride products; and TETRA PureFlow ultra-pure zinc bromide to battery technology companies. The Water & Flowback Services segment provides water management services for onshore oil and gas operators. This segment also offers frac flowback, production well testing, and other associated services in oil and gas producing regions in the United States, as well as in various basins in Latin America, Africa, Europe, and the Middle East. TETRA Technologies, Inc. was incorporated in 1981 and is headquartered in The Woodlands, Texas.

Oil States International, Inc., through its subsidiaries, provides engineered capital equipment and products for the energy, industrial, and military sectors worldwide. The company operates through three segments: Well Site Services, Downhole Technologies, and Offshore/Manufactured Products. The Well Site Services segment offers a range of equipment and services that are used to drill for, establish, and maintain the flow of oil and natural gas from a well throughout its lifecycle. It also provides wireline support, frac stacks, isolation tools, downhole and extended reach activity, well testing and flowback operations, sand control, and land drilling services. The Downhole Technologies segment provides oil and gas perforation systems, and downhole tools in support of completion, intervention, wireline, and well abandonment operations. This segment also designs, manufactures, and markets its consumable engineered products to oilfield service, and exploration and production companies. The Offshore/Manufactured Products segment designs, manufactures, and markets capital equipment utilized on floating production systems, subsea pipeline infrastructure, and offshore drilling rigs and vessels. Its products include flexible bearings, advanced connector systems, high-pressure riser systems, managed pressure drilling systems, deepwater mooring systems, cranes, subsea pipeline products, and blow-out preventer stack integration products. This segment also provides short-cycle products, such as valves, elastomers, and other specialty products that are used in the land-based drilling and completion markets; and other products for use in industrial, military, alternative energy, and other applications. In addition, it offers specialty welding, fabrication, cladding and machining, offshore installation, and inspection and repair services. The company was incorporated in 1995 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.