Sierra Engineering

Sierra is a leading engineering and consulting firm that has been in operation since 1988. The Company has a dominant position in the US with approximately 450 independent consultants and engineers that specialize in new well drilling and completion, fracture treatment design and execution of workover recompletion services. The Company primarily operates in the continental US but has also provided services in South America, Yemen, the UK, and Russia. Over its 20+ year history, the Company has worked for over 600 Operators on approximately 50,000 wells. Over the last five years, Sierra has been on the forefront of emerging shale plays across the US and has gained valuable knowledge in wellbore construction and completion procedures as well as the technology used in these processes. Sierra is headquartered in Midland, TX and has offices in Houston, TX, Oklahoma City, OK and Denver, CO.

Corinthian Capital

Corinthian Capital was founded in 2005 to invest in small and middle market companies located primarily in North America. Headquartered in New York, NY with offices in Chicago, IL and Boston, MA, Corinthian Capital invests in unique niche manufacturing, distribution, and service businesses with EBITDA between $5 million and $30 million, located primarily in North America.

PPHB, LP (“PPHB”)

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