CHICAGO (Standard&Poor's) Oct. 27, 2011--Standard&Poor's Ratings Services said today that it assigned its 'BBB' senior unsecured debt rating to Memphis, Tenn.-based AutoZone Inc.'s $1 billion revolving credit facility maturing Sept. 13, 2016. All of the company's existing ratings, including the 'BBB' corporate credit rating, remain unchanged. Total debt outstanding on Aug. 27, 2011, was approximately $3.35 billion. Our outlook on the company is stable. "We expect AutoZone to use the new revolving credit facility, which replaces the company's previous $800 million facility, for general corporate purposes, including commercial paper backup and letters of credit," said Standard&Poor's credit analyst Jerry Phelan. AutoZone's ratings reflect our view that the company's profitability will remain strong and credit
