Liberty Energy Inc. provides hydraulic fracturing and wireline services, and related goods to onshore oil and natural gas exploration and production companies in North America.

ProFrac Holding Corp., a vertically integrated and energy services company, provides hydraulic fracturing, completion, and other products and services to upstream oil and gas companies engaged in the exploration and production of North American unconventional oil and natural gas resources.

Helix Energy Solutions Group, Inc., an offshore energy services company, provides specialty services to the offshore energy industry primarily in Brazil, the Gulf of Mexico, North Sea, the Asia Pacific, and West Africa regions.

Enerflex Ltd. supplies natural gas compression, oil and gas processing, refrigeration systems, energy transition solutions, and electric power generation equipment to the oil and natural gas industry.

Geospace Technologies Corporation designs and manufactures instruments and equipment used in the oil and gas industry to acquire seismic data in order to locate, characterize, and monitor hydrocarbon producing reservoirs.

Cactus, Inc. designs, manufactures, sells, and rents a range of wellheads and pressure control equipment in the United States, Australia, China, and the Kingdom of Saudi Arabia.

ChampionX Corporation provides chemistry solutions, and engineered equipment and technologies to oil and gas companies worldwide. The company's Production Chemical Technologies segment offers onshore and offshore 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.