NEW YORK (Standard&Poor's CreditWire) Oct. 19, 1999--Standard&Poor's today has placed its double-'A'-minus long-term corporate credit and senior debt ratings, as well as its 'A-1'-plus short-term corporate credit and commercial paper ratings, for the Archer Daniels Midland Co. (ADM) on CreditWatch with negative implications. The preliminary double-'A'-minus rating on the company's shelf debt also was placed on CreditWatch with negative implications. Additionally, the 'A-1'-plus short-term corporate credit and commercial paper ratings for Golden Peanut Co. also were placed on CreditWatch with negative implications. ADM is a general partner in the Golden Peanut Co. partnership. About $3 billion of rated debt is outstanding. The CreditWatch listing follows Standard&Poor's concerns over ADM's financial performance through the prolonged