Investor Relations

ITASCA, Ill., May 15 /PRNewswire-FirstCall/ -- Arthur J. Gallagher & Co. (NYSE: AJG) today declared a regular quarterly cash dividend of thirty one cents ($.31) per share on the Common Stock of the Company, payable on July 16, 2007 to Shareholders of Record as of June 29, 2007.

Arthur J. Gallagher & Co., an international insurance brokerage and risk management services firm, is headquartered in Itasca, Illinois, has operations in seven countries and does business in over 100 countries around the world through a network of correspondent brokers and consultants. Gallagher is traded on the New York Stock Exchange under the symbol AJG.

SOURCE  Arthur J. Gallagher & Co.

       05/15/2007
   
CONTACT:  Marsha J. Akin, Investor Relations, Arthur J. Gallagher & Co.,

+1-630-773-3800

    /Web site:  http://www.ajg.com /

    (AJG)