OCAS Ohio Casualty (MM)

Ohio Casualty Corporation (NASDAQ:OCAS) invites you to listen to members of management in a live Internet broadcast of the Corporation's second quarter 2006 earnings results conference call for investors and members of the financial community. The call/broadcast will begin at 10:00 a.m. EDT on July 27, 2006. The Internet event can be accessed directly through Ohio Casualty Corporation's Website www.ocas.com and Vcall's Investor Calendar Website www.investorcalendar.com. To listen to the event, please go to the Website at least 15 minutes early to register, download, and install any necessary audio software. There is no charge to access the event. This event will be archived and available for replay until October 27, 2006. To access the archived event, visit www.investorcalendar.com. A conference call playback begins at 1 p.m. on July 27, 2006 and extends through 11:59 p.m. July 29, 2006. To listen to the playback, dial 1-800-642-1687, then key in the call ID code: 2055088. Corporate Profile Ohio Casualty Corporation is the holding company of The Ohio Casualty Insurance Company, which is one of six property-casualty subsidiary companies that make up Ohio Casualty Group. The Ohio Casualty Insurance Company was founded in 1919 and is licensed in 49 states. Ohio Casualty Group is ranked 50th among U.S. property/casualty insurance groups based on net premiums written (Best's Review, July 2006). The Group's member companies write auto, home and business insurance. Ohio Casualty Corporation trades on the NASDAQ Stock Market under the symbol OCAS and had assets of approximately $5.8 billion as of March 31, 2006. Safe Harbor Notice During the course of this conference call, Ohio Casualty Corporation may make projections or other forward-looking statements regarding future events or the future financial performance of the Corporation. Any such statements are just predictions and actual events or results may differ materially. Refer to the documents the Corporation files from time to time with the Securities and Exchange Commission, specifically Ohio Casualty Corporation's last filed Form 10-K and its Form 10-Q. These documents contain and identify important factors that could cause the actual results to differ materially from those contained in the Corporation's projections or forward-looking statements.