Sheldon B Lubar

Mr. Lubar joined us as a director upon the completion of our initial public offering in January 2004. He currently serves as chairman of the Governance Committee of our Board. Mr. Lubar has been chairman of the Board of Lubar & Co. Incorporated, a private investment and venture capital firm he founded, since 1977. He was Chairman of the Board of Christiana Companies, Inc., a logistics and manufacturing company, from 1987 until its merger with Weatherford International in 1995. Mr. Lubar also serves as a director of Weatherford International, Inc. (NYSE: WFT), an energy services company, and Approach Resources, Inc. (NASDAQ: AREX). Mr. Lubar has also served as a director of Crosstex Energy GP, LLC since December 2002. Mr. Lubar holds a bachelor's degree in Business Administration and a Law degree from the University of Wisconsin-Madison. He was awarded an honorary Doctor of Commercial Science degree from the University of Wisconsin-Milwaukee. CLASS WHOSE TERM EXPIRES IN 2010.