NY -- Standard&Poor's CreditWire 3/10/97 -- Standard&Poor's today has assigned its triple-`B' corporate credit rating to DTE Energy Co., the parent holding company of Detroit Edison Co. (triple-`B'-plus corporate credit rating). DTE Energy's rating mainly reflects the creditworthiness of Detroit Edison, its primary cash generating subsidiary. Future common dividend payments by Detroit Edison will be the primary means of DTE Energy's ability to service its own debt. Detroit Edison represented approximately 98.7% of DTE Energy's assets at Dec. 31, 1996. DTE Energy provides a structure to separate the regulated utility business from non-utility subsidiary companies. DTE Energy's formation on Jan. 1, 1996 enhanced opportunities for business growth through energy- related, non-utility business ventures. Non-regulated investments are
