Exhibit 99.1 NEWS BULLETIN - -------------------------------------------------------------------------------- Old Republic International Corporation 307 North Michigan Avenue, Chicago, IL 60601-5382 312/346-8100 - -------------------------------------------------------------------------------- For Further Information: AT OLD REPUBLIC: AT FINANCIAL RELATIONS BOARD: A.C. Zucaro George Zagoudis Chairman & CEO General Information (312) 346-8100 (312) 640-6663 gzagoudis@financialrelationsboard.com AT FINANCIAL RELATIONS BOARD: AT FINANCIAL RELATIONS BOARD: Leslie Loyet Tim Grace Analysts/Investors Media Inquiries (312) 640-6672 (312) 640-6667 lloyet@financialrelationsboard.com tgrace@financialrelationsboard.com - -------------------------------------------------------------------------------- FOR IMMEDIATE RELEASE ORI:NYSE THURSDAY, MARCH 31, 2005 OLD REPUBLIC INTERNATIONAL CORPORATION FILES FORM 10-K WITH SEC CHICAGO, March 31, 2005 - Old Republic International Corporation (NYSE: ORI) today announced that it has filed its final Form 10-K annual report with the Securities and Exchange Commission. This report is identical to the preliminary version filed on March 15, 2005, except that it now includes the requisite Report of Independent Registered Public Accounting Firm (Item 8), Management's Report on Internal Control over Financial Reporting, and several required exhibits. About Old Republic Chicago-based Old Republic International Corporation is an insurance holding company whose subsidiaries market, underwrite and provide risk management services for a wide variety of coverages in the property and liability, mortgage guaranty, and title insurance fields. One of the nation's 50 largest publicly owned insurance organizations, Old Republic has assets of approximately $10.6 billion and shareholders' equity of $3.87 billion. Its current stock market valuation is approximately $4.30 billion. For the latest news releases and other corporate documents on Old Republic International visit www.oldrepublic.com -30-