John F Riordan

Business experience: Retired since 2005; formerly President and Chief Executive Officer, 2000-2005, Gas Technology Institute (Not-For-Profit Research and Education); Vice Chairman, 1998-1999, KN Energy, Inc. (Integrated Natural Gas); President and Chief Executive Officer, 1988-1998, Midcon Corp. (Natural Gas Pipeline). Directorship: National Fuel Gas Company. President and CEO from April 2000 to December 2005 of GTI (the Gas Technology Institute), a not-for-profit research and educational institution, Des Plaines, Illinois. Vice Chairman of KN Energy, Inc. from February 1998 to February 1999. President and CEO of MIDCON Corporation from October 1988 to January 1998. Director of Nicor Inc. since 2001.