Riverstone Holdings
'Riverstone is an energy and power-focused private investment firm founded in 2000 by David M. Leuschen and Pierre F. Lapeyre, Jr. with approximately $27 billion of equity capital raised. Riverstone conducts buyout and growth capital investments in the exploration & production, midstream, oilfield services, power and renewable sectors of the energy industry. With offices in New York, London and Houston, the firm has committed approximately $24.8 billion to 104 investments in North America, Latin America, Europe, Africa and Asia.