Blue Sky Oilfield Service, LLC (“Blue Sky”)

Blue Sky is a privately held oilfield service company providing flowback and fluid services, equipment rental and well-site construction in the Barnett Shale region. The Company was formed in 2006 and is headquartered in Granbury, Texas.

Select Energy Services, LLC (“Select”)

Select provides wellsite solutions to the oil and gas industry in the north and east Texas region, Oklahoma, Arkansas, Louisiana, Colorado, and Pennsylvania. Its services include well site rentals and accommodations, water management operations, rig logistics, heavy haul services, and wellsite construction. Select Energy Services, LLC was incorporated in 2006 and is based in Gainesville, Texas.

PPHB, LP (“PPHB”)

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