JEFFREY A. HARRIS Managing Director of Energy at Warburg Pincus, New York, USA. He is a director of Competitive Power Ventures, ElectroMagnetic GeoServices ASA, Gulf Coast Energy Resources, Knoll, Kosmos Energy, Laredo Petroleum, Osum Oil Sands, Sheridan Production Partners and Spectraseis AG. Currently he is Vice Chairman of the Board of Trustees for the Cranbrook Educational Community, and a member of the Board of Trustees of New York-Presbyterian Hospital. In addition, Mr. Harris is an adjunct professor at the Columbia University Graduate School of Business, USA, where he teaches courses on venture capital and innovation.