Jon A. Marshall

Mr. Marshall served as President and Chief Operating Officer of Transocean Inc. from November 2007 to May 2008, and immediately prior to that served as Chief Executive Officer of GlobalSantaFe Corporation from May 2003 until November 2007, when GlobalSantaFe merged with Transocean. Transocean is an offshore drilling contractor. Mr. Marshall has not held a principal employment since leaving his position with Transocean. Mr. Marshall also serves as a director of two nonprofit organizations. Mr. Marshall brings to our Board experience in executive positions and experience as a director for diverse, energy-related public companies.