NEW YORK (Standard&Poor's) April 18, 2008--Standard&Poor's Ratings Services revised the outlook on electric energy and utility company DPL Inc. and its subsidiary, Dayton Power&Light Co. (DP&L), to positive from stable. At the same time, Standard&Poor's affirmed its 'BBB' corporate credit rating. The rating action reflects the progress that has been made on various plant environmental upgrades that have been timely and on budget, as well as gradual improvement in the overall financial profile. DPL's consolidated creditworthiness had been somewhat constrained due to its relatively high debt leverage (65% for the year ended December 2007), environmental capital expenditures, and reinstatement of its sizeable dividends ($120 million annually); however, the financial profile is showing