Schlumberger Limited engages in the provision of technology for the energy industry worldwide. The company operates through four divisions: Digital & Integration, Reservoir Performance, Well Construction, and Production Systems. The company provides field development and hydrocarbon production, carbon management, and integration of adjacent energy systems; reservoir interpretation and data processing services for exploration data; and well construction and production improvement services and products. It also offers subsurface geology and fluids evaluation information; open and cased hole services; exploration and production pressure, and flow-rate measurement services; and pressure pumping, well stimulation, and coiled tubing equipment solutions. In addition, the company offers mud logging, directional drilling, measurement-while-drilling, and logging-while-drilling services, as well as engineering support services; supplies drilling fluid systems; designs, manufactures, and markets roller cone and fixed cutter drill bits; bottom-hole-assembly and borehole enlargement technologies; well cementing products and services; well planning, well drilling, engineering, supervision, logistics, procurement, and contracting of third parties, as well as drilling rig management solutions; and drilling equipment and services, as well as land drilling rigs and related services. Further, it provides artificial lift production equipment and optimization services; supplies packers, safety valves, sand control technology, and various intelligent well completions technology and equipment; designs and manufactures valves, chokes, actuators, and surface trees; and OneSubsea, an integrated solutions, products, systems, and services, including wellheads, subsea trees, manifolds and flowline connectors, control systems, connectors, and services. The company was formerly known as Socie´te´ de Prospection E´lectrique. Schlumberger Limited was founded in 1926 and is based in Houston, Texas.

Halliburton Company provides products and services to the energy industry worldwide. It operates through two segments, Completion and Production, and Drilling and Evaluation. The Completion and Production segment offers production enhancement services that include stimulation and sand control services; cementing services, such as well bonding and casing, and casing equipment; and completion tools that offer downhole solutions and services, including well completion products and services, intelligent well completions, and service tools, as well as liner hanger, sand control, and multilateral systems. This segment also provides electrical submersible pumps, as well as artificial lift services; production solutions comprising coiled tubing, hydraulic workover units, downhole tools, and pumping and nitrogen services; pipeline and process services, such as pre-commissioning, commissioning, maintenance, and decommissioning; and specialty chemicals and services. The Drilling and Evaluation segment offers drilling fluid systems, performance additives, completion fluids, solids control, specialized testing equipment, and waste management services; drilling systems and services; wireline and perforating services consists of open-hole logging, and cased-hole and slickline; and drill bits and services comprising roller cone rock bits, fixed cutter bits, hole enlargement, and related downhole tools and services, as well as coring equipment and services. This segment also provides cloud based digital services and artificial intelligence solutions on an open architecture for subsurface insights, integrated well construction, and reservoir and production management; testing and subsea services, such as acquisition and analysis of reservoir information and optimization solutions; and project management and integrated asset management services. Halliburton Company was founded in 1919 and is based in Houston, Texas.

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.

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.

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.

Flotek Industries, Inc. operates as a technology-driven green chemistry and data company that serves customers across industrial and commercial markets in the United States, the United Arab Emirates, and internationally. It operates through two segments: Chemistry Technologies (CT) and Data Analytics (DA). The CT segment designs, develops, manufactures, packages, distributes, delivers, and markets green specialty chemicals that enhance the profitability of hydrocarbon producers, as well as green specialty chemistries, and logistics and technology services. This segment primarily serves integrated oil and gas, oilfield services, independent oil and gas, national and state-owned oil, geothermal energy, solar energy, and alternative energy companies. The DA segment designs, develops, produces, sells, and supports equipment and services that create and provide valuable information on the composition and properties of energy customers' hydrocarbon fluids. It sells its products directly through a mix of in-house sales professionals, as well as contractual agency agreements. Flotek Industries, Inc. was incorporated in 1985 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.