Atlas Energy Solutions Inc. engages in the production, processing, and sale of mesh and sand that are used as a proppant during the well completion process in the Permian Basin of Texas and New Mexico. The company provides transportation and logistics, storage solutions, and contract labor services. It sells its products and services to oil and natural gas exploration and production companies, and oilfield services companies. Atlas Energy Solutions Inc. was founded in 2017 and is headquartered in Austin, Texas.

ProFrac Holding Corp. operates as a technology-focused energy services holding company in the United States. It operates through three segments: Stimulation Services, Manufacturing, and Proppant Production. The company offers hydraulic fracturing, well stimulation, in-basin frac sand, and other completion services and complementary products and services to upstream oil and natural gas companies engaged in the exploration and production of unconventional oil and natural gas resources. It also manufactures and sells high horsepower pumps, valves, piping, swivels, large-bore manifold systems, and fluid ends. ProFrac Holding Corp. was founded in 2016 and is headquartered in Willow Park, 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.

SandRidge Energy, Inc. engages in the acquisition, development, and production of oil, natural gas, and natural gas liquids in the United States Mid-Continent. The company was incorporated in 2006 and is headquartered in Oklahoma City, Oklahoma.

Mammoth Energy Services, Inc. operates as an energy services company in the United States, Canada, and internationally. The company operates in four segments: Well Completion Services, Infrastructure Services, Natural Sand Proppant Services, and Drilling Services. The company offers pressure pumping and hydraulic fracturing, sand hauling, and water transfer services; and master services agreements. It also provides a range of services on electric transmission and distribution, and networks and substation facilities, including engineering, design, construction, upgrade, maintenance, and repair of high voltage transmission lines, substations, and lower voltage overhead and underground distribution systems; storm repair and restoration services; and commercial services comprising installation, maintenance, and repair of commercial wiring. In addition, the company mines, processes, and sells natural sand proppant used for hydraulic fracturing; buys processed sand from suppliers on the spot market for resale; and provides logistics solutions to facilitate delivery of frac sand products. Further, it offers contract land and directional drilling services; and rig moving services. Additionally, the company offers aviation services, equipment rental, remote accommodation, and equipment manufacturing services. It serves government-funded, private, public investor-owned, and co-operative utilities; independent oil and natural gas producers; and land-based drilling contractors. The company was formerly known as Mammoth Energy Partners LP and changed its name to Mammoth Energy Services, Inc. in October 2016. Mammoth Energy Services, Inc. was founded in 2014 and is headquartered in Oklahoma City, Oklahoma.

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.

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.

U.S. Silica Holdings, Inc. produces and sells commercial silica in the United States. It operates through two segments: Oil & Gas Proppants and Industrial & Specialty Products. The company offers whole grain commercial silica products to be used as frac for oil and natural gas recovery, as well as sells its whole grain silica products for the manufacturing of glass products. It also provides various grades of whole-grain round silica to the foundry industry; ground silica and industrial minerals products used for various products; and engineered performance materials made from diatomaceous earth (DE), clay, and perlite. In addition, the company offers transportation, equipment rental, and contract labor services. It serves oilfield services companies, and exploration and production companies that are engaged in hydraulic fracturing, building and construction products, chemicals, fillers and extenders, filtration, glass, sports, recreation, and industrial and specialty products end markets. The company was formerly known as GGC USS Holdings Inc. and changed its name to U.S. Silica Holdings, Inc. in July 2011. U.S. Silica Holdings, Inc. was founded in 1894 and is headquartered in Katy, Texas.