People: Sempra Energy (SRE)

Mr. William C. Rusnack is Lead Independent Director of Sempra Energy. He was the President and Chief Executive Officer and a director of Premcor Inc., an independent oil refiner, from 1998 to 2002. Prior to 1998, Mr. Rusnack was an executive of Atlantic Richfield Company, an integrated petroleum company. He is also a director of Flowserve Corporation and Peabody Energy Corporation, and a former director of Solutia Inc. Mr. Rusnack is a member of the Dean’s Advisory Council of the Graduate School of Business at the University of Chicago and the National Council of the Olin School of Business at the Washington University in St. Louis.