E. GAIL DE PLANQUE Potomac, Maryland A director since 2004, de Planque, 61, is president of Strategy Matters, Inc., and director of Energy Strategists Consultancy Limited, each providing consulting services to the energy and nuclear industries. Previously, de Planque was a commissioner of the U.S. Nuclear Regulatory Commission and a director of the Environmental Measurements Laboratory of the U.S. Department of Energy. She also serves as a director of BNG America; Landauer, Inc.; Northeast Utilities; BHP Billiton Plc; and BHP Billiton Ltd. Committees: Finance and Business Development Committee, Nominating and Governance Committee, Nuclear Committee LELDON E. ECHOLS Dallas, Texas A director since 2005, Echols, 50, is executive vice president and chief financial officer of Centex Corporation. Previously, he was managing partner of Arthur Anderson LLP's audit practice for North Texas, Colorado, and Oklahoma. Committees: Audit Committee, Organization and Compensation Committee KERNEY LADAY Dallas, Texas A director since 1993, Laday, 64, is president of The Laday Company, a management consulting and business development firm. He was previously vice president of field operations of the Southern Region of U.S. Customer Operations of Xerox Corporation, where he also served as vice president and region general manager. Committees: Executive Committee, Finance and Business Development Committee, Nominating and Governance Committee, Organization and Compensation Committee JACK E. LITTLE Houston, Texas A director since 2001 and lead independent director since 2004, Little, 67, is retired president and chief executive officer of Shell Oil Company. He was previously president and chief executive officer of Shell Exploration & Production Company. Little also serves as a director of Noble Corporation. Committees: Audit Committee, Executive Committee, Nuclear Committee GERARDO I. LOPEZ Seattle, Washington A director since February 2006, Lopez, 46, is senior vice president of Starbucks Coffee Company and president of its Global Consumer Products. Previously, he served as president of Handleman Entertainment Resources and of the international division of International Home Foods. Committees: Nominating and Governance Committee, Organization and Compensation Committee J.E. OESTERREICHER Dallas, Texas A director since 1996, Oesterreicher, 64, is retired chairman of the board and chief executive officer of J.C. Penney Company, Inc., where he was vice chairman of the board and chief executive officer and previously president of J.C. Penney Stores and Catalog. Oesterreicher also serves as a director of Brinker International, Inc. Committees: Audit Committee, Executive Committee, Finance and Business Development Committee, Organization and Compensation Committee MICHAEL W. RANGER New York, New York A director since 2003, Ranger, 48, is senior managing director of Diamond Castle Holdings, LLC, a private equity investment firm. He was previously a consultant to CSFB Private Equity; managing director, Investment Banking, of Credit Suisse First Boston; and managing director and group head of Global Energy and Power Group, Investment Banking, of Donaldson Lufkin & Jenrette Securities Corporation. Committees: Finance and Business Development Committee LEONARD H. ROBERTS Fort Worth, Texas A director since 2005, Roberts, 57, is chairman of RadioShack Corporation. He was previously chief executive officer of RadioShack Corporation as well as president. He also serves as a director of RadioShack Corporation and J.C. Penney Company, Inc. Committees: Audit Committee, Executive Committee, Organization and Compensation Committee GLENN F. TILTON Chicago, Illinois A director since 2005, Tilton, 58, is chairman, president, and chief executive officer of UAL Corporation and United Air Lines, Inc. Previously, he was non-executive chairman of Dynegy, Inc., and vice chairman of ChevronTexaco Corporation. Additionally, he served as chairman and chief executive officer of Texaco Inc. and president of Texaco's Global Business Unit. He also serves as a director of Lincoln National Corporation, UAL Corporation, and United Air Lines, Inc. Committees: Finance and Business Development Committee, Nominating and Governance Committee, Nuclear Committee C. JOHN WILDER Dallas, Texas A director since 2004, Wilder, 48, is chairman, president, and CEO of TXU Corp. He was previously president and CEO of TXU Corp. and executive vice president and chief financial officer of Entergy Corporation. Wilder also serves as a director of TXU Electric Delivery Company and TXU Energy Company LLC. Committees: Executive Committee, Nuclear Committee