GR Energy Services, LLC (“GR Energy”)

GR Energy is a leading completion and production solutions company committed to lowering operational risk and total cost of operations for oil and gas companies in major shales plays across the U.S. Founded in 2013, the Company has grown into a leading provider of wireline services, perforating services, completion optimization services and artificial lift equipment. GR Energy is headquartered in Sugar Land, Texas and occupies nine additional locations across Texas, Louisiana, Oklahoma, North Dakota and Pennsylvania.

Pine Brook Road Partners, LLC (“Pine Brook”)

Pine Brook is an investment firm that manages more than $6.0 billion of limited partner commitments that makes "business building" and other equity investments, primarily in energy and financial services businesses. Pine Brook's team of investment professionals collectively has over 300 years of experience financing the growth of businesses with equity, working alongside talented entrepreneurs and experienced management teams to build businesses of scale.

PPHB, LP (“PPHB”)

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