Patricia A. Hammick Former Senior Vice President, Columbia Energy Group

Ms. Hammick is the former Senior Vice President, Strategy and Communications for Columbia Energy Group. She previously served as an adjunct Professor at George Washington University's Graduate School of Political Management and as Chief Operations Officer of the National Gas Supply Association.

Ms. Hammick is a Director of Consol Energy, Inc. and SNC-Lavalin Group, Inc.

A Dynegy Director since 2003, Hammick was elected Lead Director in May 2004.