David Sobernheim

RockPile Energy Services LLC operates as an oil services company providing completions solutions to oil and gas exploration and production companies. Its services include cased hole wireline, pump down services, backside pressure services, acidizing services, workover rig and hydraulic pressure pumping fracturing. The company also provides workover and remedial well service and cementing. The company is headquartered in Denver, CO.

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.