NEW YORK (Standard&Poor's CreditWire) Nov. 8, 2000--Standard&Poor's today assigned its preliminary triple-'B'-plus/triple-'B' rating to ConAgra Foods Inc.'s $1.985 billion mixed-use Rule 415 shelf registration. At the same time, Standard&Poor's affirmed its triple-'B'-plus long-term corporate credit and senior unsecured debt ratings, as well as its triple-'B' subordinated debt rating, on ConAgra. The 'A-2' short-term corporate credit and commercial paper ratings for the company also were affirmed. The outlook is stable. About $7.7 billion of total debt was outstanding as of Aug. 27, 2000. The ratings reflect ConAgra's relatively low business risk derived from a diverse portfolio of leading packaged-food brands, as well as the company's major positions in meat packing, poultry, flour milling, grain trading,