Professional Directional Enterprises, Inc.

Professional Directional Enterprises, Inc. (“ProDirectional” or the “Company”) is a leading provider of directional and horizontal drilling services, completion chemicals, and coring services to the onshore U.S. oil & gas industry. Founded in 2001, the Company has since grown into one of the largest privately-held directional drilling companies in the industry. ProDirectional is headquartered in Conroe, Texas and has nine additional locations across Texas, Oklahoma, West Virginia, Wyoming, Colorado, Louisiana, and Pennsylvania.

Diamond Castle Holdings, LLC

Diamond Castle Holdings, LLC (“DCH”) is a private equity investment firm founded in 2004 with approximately $2.0 billion of capital raised to date. DCH focuses on investments in the energy & power, financial services and healthcare sectors, as well as other diversified industries. DCH is based in New York City.

PPHB, LP (“PPHB”)

PPHB is an independent investment banking firm providing financial advisory services exclusively to clients in the energy service industry. PPHB’s Debt Advisory group assists clients in optimizing their capital structure with competitively priced institutional debt placement.