State Auto Financial to Participate in the 2006 Sandler O’Neill Financial Services Conference

State Auto Financial Corporation (NASDAQ:STFC) today announced it will participate in the Sandler O’Neill & Partners, L.P., Financial Services Conference, to be held June 8 – 9, 2006 at the Le Parker Meridien, in New York. State Auto Chairman, CEO and President Bob Restrepo will participate in a Personal Lines Insurance panel on Thursday, June 8 from 11:15 to 11:45 a.m. eastern time.

The webcast of the entire Sandler symposium can be found at www.sandleroneill.com. The symposium will be archived for 60 days and will also be available via audio at 617-213-8842.

State Auto Financial Corporation, headquartered in Columbus, Ohio, is a property and casualty insurance holding company. The company markets its personal and commercial insurance products through more than 22,300 independent agents associated with approximately 3,000 agencies in 27 states. The company has been named Forbes Magazine’s “Best Managed Insurance Company in America” for 2006 and is in a select group, making up just 3% of publicly traded companies, earning the Mergent Dividend Achiever Award for having increased its dividends for ten or more years in succession. The State Auto Insurance Companies are rated A+ (Superior) by the A.M. Best Company. Additional information on the company can be found on its web page at www.STFC.com.