Exhibit 99.1
PRESS RELEASE
BUSINESS AND FINANCIAL EDITORS | WILLIAM J. OWEN |
FOR IMMEDIATE RELEASE | Senior Vice President, |
| Investor Relations |
| 818-676-3936 |
ZENITH DECLARES QUARTERLY AND EXTRA DIVIDEND
TOTALING $0.90
WOODLAND HILLS, CALIFORNIA, December 3, 2009 .. . . .. . . .. . . .. . . .. . . .. . . . The Board of Directors of Zenith National Insurance Corp. (NYSE:ZNT) today declared a regular quarterly cash dividend of $0.50 per share on its outstanding shares of common stock. In addition, the Board of Directors declared an extra dividend of $0.40 per share on its outstanding shares of common stock. The regular dividend of $0.50 per share will be payable February 12, 2010 to stockholders of record at the close of business on January 29, 2010. The extra dividend of $0.40 per share will be payable December 29, 2009 to stockholders of record at the close of business on December 15, 2009.
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