Refinery Specialties, Inc. (“RSI”)
Pressure Pumping Division

The Pressure Pumping Division is a provider of hydraulic fracturing and pump down services across Texas. The Pressure Pumping Division consists of approximately 90,000 hydraulic horsepower. Headquartered in Hempstead, Texas, RSI is a provider of chemical solutions to the U.S. energy industry. RSI custom formulates, blends and distributes a wide array of production and completion chemicals for oil and gas wells as well as select midstream chemicals for pipelines. RSI was founded in 1989 and recapitalized by Post Oak Energy Capital, LP in 2012.

Post Oak Energy Capital, LP (“Post Oak”)

Post Oak, which was established in 2006, is an energy-focused private investor based in Houston, Texas. The firm pursues private investments primarily in the upstream sector of the oil and gas industry in North America and, to a lesser extent, in oilfield service and related infrastructure.

Keane Group, Inc. (NYSE:FRAC) (“Keane”)

Headquartered in Houston, Texas, Keane is one of the largest pure-play providers of integrated well completion services in the U.S., with a focus on complex, technically demanding completion solutions. Keane's primary service offerings include horizontal and vertical fracturing, wireline perforation and logging, engineered solutions and cementing, as well as other value-added service offerings.

PPHB, LP (“PPHB”)

PPHB is an independent investment banking firm providing financial advisory services exclusively to clients in the oilfield equipment and service industry.