TechnipFMC plc engages in the energy projects, technologies, and systems and services businesses in Europe, Central Asia, North America, Latin America, the Asia Pacific, Africa, the Middle East, and internationally. It operates through two segments: Subsea and Surface Technologies. The Subsea segment engages in the design, engineering, procurement, manufacturing, fabrication, installation, and life of field services for subsea systems, subsea field infrastructure, and subsea pipe systems used in oil and gas production and transportation. It provides subsea production and processing system; flexible pipe; subsea umbilicals, risers, and flowlines; vessels; robotics; well and asset services; and Subsea Studio for optimizing the development, execution, and operation of current and future subsea fields. The Surface Technologies segment designs, manufactures, and services products and systems used in land and shallow water exploration and production of crude oil and natural gas. This segment offers drilling; surface wellheads and production trees systems; iComplete, a pressure control system; fracturing tree and manifold systems; flexible pipes; safety and integrity systems, multiphase meter modules, in-line separation and processing systems, and standard pumps; well control and integrity systems; separation and processing systems; skid systems; and flow measurement and automation solutions. It also offers planning, testing and installation, commissioning, operations, replacement and upgrade, maintenance, storage, preservation, intervention, integrity, decommissioning, and abandonment; and supplies flowline products and services. TechnipFMC plc was founded in 1884 and is headquartered in Houston, 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.

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.

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.

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.

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.

KLX Energy Services Holdings, Inc. provides drilling, completions, production, and well intervention services and products to the onshore oil and gas producing regions of the United States. The company operates through three segments: Southwest, Rocky Mountains, and Northeast/Mid-Con. It provides directional drilling services; downhole navigational and rental tools businesses and support services, including well planning, site supervision, accommodation rentals, and other drilling rentals; and various technologies, including gamma ray, azimuthal gamma ray, real-time continuous inclination and azimuth, rotary steerable, pressure-while-drilling, mode shifting, stick-slip and destructive dynamics, dynamic sequencing and real-time shock, and vibration modules. The company also offers coiled tubing and nitrogen services; wireline services, including pump down perforating, logging, and pipe recover; pressure control products and services; wellhead and hydraulic fracturing rental products and services; flowback and testing services; thru-tubing technologies and services; rig assist snubbing services; cementing products and services; acidizing and pressure pumping services; and downhole completion tools, such as toe sleeves, wet shoe cementing bypass subs, composite plugs, dissolvable plugs, liner hangers, stage cementing tools, inflatables, float and casing equipment, and retrievable completion tools. In addition, it provides production services comprising maintenance-related intervention services; production blow out preventers; mechanical wireline services; slick line services; hydro-testing services; premium tubulars; and other specialized production tools. Further, the company provides intervention services consisting of technicians and equipment that are focused on providing customers engineered solutions to downhole complications. KLX Energy Services Holdings, Inc. was incorporated in 2018 and is headquartered in Houston, Texas.