SIGNATURE Pursuant to the requirements of Sections 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. WESTAR ENERGY, INC. Date:      April 11, 2003      By:      /s / MARK A. RUELLE                        Mark A. Ruelle, Executive Vice President and Chief Financial Officer   SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated: Signature Title Date      /s/ JAMES S. HAINES, JR.               (James S. Haines, Jr.) Director, Chief Executive Officer and President (Principal Executive Officer) April 11, 2003      /s/ MARK A, RUELLE               (Mark A. Ruelle) Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) April 11, 2003      /s/ CHARLES Q. CHANDLER IV             (Charles Q. Chandler IV) Chairman of the Board April 11, 2003      /s/ FRANK J. BECKER               (Frank J. Becker) Director April 11, 2003      /s/ GENE A. BUDIG               (Gene A. Budig) Director April 11, 2003      /s/ R. A. EDWARDS III               (R. A. Edwards III) Director April 11, 2003      /s/ LARRY D. IRICK                (Larry D. Irick) Director April 11, 2003      /s/ JOHN C. NETTELS, JR.               John C. Nettels, Jr. Director April 11, 2003