James Stewart

Weatherford International Ltd. provides equipment and services to the oil and natural gas exploration and production industry. The company was founded in 1972 and is headquartered in Geneva, Switzerland.

Part of Ensign Energy Services, Inc., FE Services Holdings, Inc. is a company that provides oil and gas drilling services. The company is based in Houston, TX. FE Services Holdings was acquired by Ensign Energy Services, Inc. on December 31, 2009.

Keane Group Holdings LLC provides top hole drilling and hydraulic fracturing services. The company was founded in 1973 and is headquartered in Houston, TX.

Keane Group, Inc. engages in the provision of hydraulic and engineered related solutions. It provides horizontal and vertical fracturing, wireline perforation and logging & engineered, as well as other value-added services. The company operates through two segments: Completion, and Other Services. The Completion Services segment refers to the hydraulic fracturing and wireline divisions. The Other Services include coiled tubing, cementing and ancillary services. The company was founded in 1973 and is headquartered in Houston, TX.

Covenant Testing Technologies LLC engages in provision of flowback and well testing services. It also operates through the offices located in Permian Basin and Niobrara Shale. Its services include Well Flow Management and FlareZero. The company was founded by John Cavitt in 2013 and is headquartered in Sugar Land, TX.

NexTier Oilfield Solutions, Inc.is an oilfield service company. It offers completion solutions, hydraulic fracturing, wire line, pump down, coiled tubing, cementing, rig services, special services, and fluids management services. The company operates through the following segments: Completion Services, Well Construction and Intervention Services, and Well Support Services. The Completion Services segment consists of fracturing services, wireline and pumping services, and completion support services, which includes the research and technology (R&T) department. The Well Construction and Intervention Services segment consists of cementing services and coiled tubing services. The Well Support Services segment consists of rig services, fluids management services, and specialty well site services. The company was founded on October 13, 2016 and is headquartered in Houston, TX.