Allied Group: Board to Advise Shareholders June 2 FOR IMMEDIATE RELEASE CONTACT: Joele Frank / Dan Katcher Abernathy MacGregor Frank (212) 371-5999 ALLIED GROUP TO ADVISE SHAREHOLDERS JUNE 2 DES MOINES, Iowa, June 1, 1998 - ALLIED Group, Inc. (NYSE: GRP) announced today that its Board of Directors intends to advise shareholders on June 2, 1998 as to its position with respect to the unsolicited tender offer by Nationwide Mutual Insurance Company. # # # End