On May 19, 2006, Standard&Poor's Ratings Services assigned its preliminary 'A+' senior debt, 'A' subordinated debt, and 'A-' preferred stock ratings to Allstate Corp.'s (NYSE:ALL) recently filed unlimited universal shelf.This shelf was filed jointly with Allstate Financing III, Allstate Financing IV, Allstate Financing V, and Allstate Financing VI, the obligations of which are guaranteed by Allstate Corp. At the same time, Standard&Poor's affirmed its 'AA' counterparty credit and financial strength ratings on Allstate Insurance Co. and its property/casualty affiliates. In addition, Standard&Poor's affirmed its 'A+' counterparty credit rating on Allstate Corp. Standard&Poor's also affirmed its 'AA' long-term counterparty credit and financial strength ratings on Allstate Life Insurance Co. and its life insurance