NY -- Standard&Poor's CreditWire 7/13/98 -- Standard&Poor's today assigned its ratings to AutoZone Inc. (see list below). The outlook is stable. At the same time, Standard&Poor's raised its rating on Chief Auto Parts Inc.'s $130 million senior unsecured notes to single-'A'-minus from single-'B' and removed the rating from CreditWatch, where it was placed May 12, 1998. The upgrade is due to Chief Auto's acquisition by AutoZone and AutoZone's assumption of Chief's $130 million senior unsecured notes. Standard&Poor's also withdrew its corporate credit and bank loan ratings on Chief Auto, as it is likely that that the company's bank facility will be refinanced (see list below). AutoZone completed its acquisition of Chief Auto
