EXHIBIT 99 CERTIFICATION BY THE CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER RELATING TO A PERIODIC REPORT CONTAINING FINANCIAL STATEMENTS - -------------------------------------------------------------------------------- I, Robert J. Chaney, Chief Executive Officer, and I, John C. Barney, Chief Financial Officer, of UGI Utilities, Inc., a Pennsylvania corporation (the "Company"), hereby certify that: (1) The Company's periodic report on Form 10-Q for the period ended June 30, 2002 (the "Form 10-Q") fully complies with the requirements of Section 15(d) of the Securities Exchange Act of 1934, as amended; and (2) The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company. * * * CHIEF EXECUTIVE OFFICER CHIEF FINANCIAL OFFICER /s/ Robert J. Chaney /s/ John C. Barney - ----------------------- ----------------------- Robert J. Chaney John C. Barney Date: August 12, 2002 Date: August 12, 2002