NGP Energy Technology Partners ("NGP ETP") invests equity capital for growth and buyout transactions in companies that provide products and services to the oil and gas, power, energy efficiency, and alternative energy sectors. Founded in 2005, NGP ETP manages approximately $500 million in committed capital and is led by investment professionals that have extensive experience investing in virtually all types of energy technology. The investment team strives to partner with strong, experienced management teams and work with them to create significant value. NGP ETP is affiliated with NGP Energy Capital Management, a premier investment franchise in the natural resources industry, which together with its affiliates, has managed over $13 billion in cumulative committed capital since 1988. NGP ECM’s investment platform includes Natural Gas Partners, NGP Global Adaptation Partners, NGP Capital Resources Company (NASDAQ: “NGPC”) and NGP Energy Technology Partners, L.P. www.ngpenergycapital.com

NGP ETP is headquartered in Washington, D.C. and has an office in New Orleans, LA.