-- We view that a continued weakening of DTE Energy Co.'s service territory economics and uncertainty of the timing of recovery could further erode its credit metrics. -- Standard&Poor's has revised the outlook on DTE Energy and its subsidiaries to negative from stable. -- We lowered our short-term rating to 'A-3' from 'A-2'. -- Significant deviation from our expectation could lead to a lower corporate credit rating. NEW YORK (Standard&Poor's) May 22, 2009--Standard&Poor's Ratings Services revised the outlook on DTE Energy Co. and its subsidiaries to negative from stable. At the same time, we lowered the short-term corporate credit and commercial paper program ratings to 'A-3' from 'A-2'. In addition, we affirmed the 'BBB'
