David W. Biegler Chairman and Chief Executive Officer, Southcross Energy, LLC

Mr. Biegler is the Chairman and Chief Executive Officer of Southcross Energy, LLC. He previously served as Chairman of Estrella Energy, L.P., Chairman of Regency Gas Services, LLC., Vice Chairman, President and Chief Operating Officer of TXU Corp. and Chairman, President and Chief Executive Officer of ENSERCH Corp.

Mr. Biegler serves as a Director of Trinity Industries, Inc., Austin Industries, Inc., Southwest Airlines Co., and Animal Health International, Inc.

Mr. Biegler has served has a Dynegy Director since 2003.