Mary P. Ricciardello has served as one of our directors since 2003. Ms. Ricciardello served as Senior Vice President and Chief Accounting Officer of Reliant Energy, Incorporated, a diversified energy company now known as CenterPoint Energy, Inc., from 2001 through 2002, where she also served as Senior Vice President and Comptroller from 1999 through 2001, as Vice President and Comptroller from 1996 through 1999, as Corporate Comptroller from 1993 through 1996 and in various other positions from 1982 through 1993.
In addition, Ms. Ricciardello served as Senior Vice President and Chief Accounting Officer of Reliant Resources, Inc. (now Reliant Energy, Inc.) from 2001 through 2002, a company to which Reliant Energy, Inc. transferred its unregulated energy business in 2001. Ms. Ricciardello has served as a director of the Texas TriCities chapter of the National Association of Corporate Directors since 2004.
Ms. Ricciardello's current principal occupation is as a certified public accountant and she has not held a principal employment position with a third-party employer since leaving her positions with Reliant Energy, Inc. and Reliant Resources, Inc. in 2002. Ms. Ricciardello is also a director of Noble Corporation, an offshore drilling company, and Devon Energy Corporation, an oil and gas exploration and production company.