Best Rates Liberty Mutual's New Debt 'bbb'

A.M. Best Co. has assigned a prospective debt rating of "bbb" to Liberty Mutual Group, Inc.'s (LMGI) (Boston, MA) $500 million (with a higher amount possible) 144a senior unsecured notes. The senior notes are expected to be issued in 10-year and 30-year tranches, with the size and interest rate of each tranche dependent upon market conditions. This action is in line with LMGI's existing senior debt ratings. The outlook for all of Liberty Mutual Holding Company, Inc.'s (LMHC) (Boston, MA) financial strength and debt ratings is negative. Proceeds from the offerings will be used to repay the $...