Stephen K. Schaefer

Riverstone Holdings LLC operates as an energy focused investment manager. It conducts buyout and growth capital investments in the exploration and production, midstream, oilfield services, power, and renewable sectors of the energy industry. The company was founded by David Matthew Leuschen and Pierre Fernard Lapeyre, Jr. in 2000 and is headquartered in New York, NY.

Ensus Ltd. produces bioethanol fuel and animal feed products. The company was founded by Margetts John Robert in 2007 and is headquartered in Yarm, the United Kingdom.

Topaz Power Group LLC owns and operates natural gas and oil-fired plants. It operates a natural gas combined cycle plant and a natural gas steam power generating facility. The company was founded in 2004 and is headquartered in Austin, Texas.

Coastal Carolina Clean Power LLC provides electricity generation and distribution services. It focuses on renewable generation projects, with a special emphasis on converted coal to biomass facilities. The company was founded in 2006 and is headquartered in Kenansville, NC.

AG Global Canada LP produces and supplies agriculture and industrial products. It serves lawn and garden, and agricultural needs. The company was founded in June 2007 and is headquartered in Toronto, Canada.

Patagonia Bioenergía SA produces and commercializes bio-diesel. It develops alternative oilseeds that are capable of producing oil for use in biodiesel production. The company was founded by Douglas Albrecht and Dario Obrador Gabriel in 2006 and is headquartered in Ciudad Autonoma de Buenos Aires, Argentina.

Pattern Energy Group LP develops, constructs, owns and operates renewable and transmission energy assets. Its operations include regular inspections, staff training, long-term service and maintenance and safety. The company was founded by Michael M. Garland in June 2009 and is headquartered in San Francisco, CA.

ReEnergy Holdings LLC provides waste/biomass renewable energy services. Its services include health and safety, compliance, financial oversight, Management, counterparty relations, operational optimization and stakeholder engagement. The company was founded by Thomas E. Beck, William Ralston , Gregory Leahey and Larry Richardson in August 2008 and is headquartered in Latham, NY.

Bowmore Energy Ltd. develops, constructs, and operates energy assets. Its portfolio includes renewable generation, gas generation and energy storage projects. The company was founded in 2011 and is headquartered in London, the United Kingdom.