UnionBanCal Corporation (NYSE:UB) announced today that it would release second quarter 2007 results after the market close on Thursday, July 19, 2007. UnionBanCal management will host a conference call to discuss these results at 8:30 AM Pacific (11:30 AM Eastern) on July 20, 2007. This call is open to all interested parties. From locations within the United States, the call-in number is 800-230-1093 (612-234-9959 from outside the United States). Please call in 10 minutes prior to the beginning of the conference.

A live webcast of the call will be available at http://www.unionbank.com. You may access the Investor Relations section of the website via the About Union Bank link from the homepage. The webcast replay will be available on the website beginning at approximately 10:30 AM Pacific (1:30 PM Eastern) on July 20, and will remain on the website for a period of one year.

A recorded playback of the conference call will be available by calling 800-475-6701, (320-365-3844 from outside the United States) from approximately 12:00 PM Pacific (3:00 PM Eastern), July 20, until 11:59 PM Pacific, July 27 (2:59 AM Eastern, July 28). The reservation number for this playback is 879044.

Based in San Francisco, UnionBanCal Corporation is a bank holding company with assets of $54.6 billion at March 31, 2007. Its primary subsidiary, Union Bank of California, N.A., had 321 banking offices in California, Oregon and Washington, and 2 international offices at March 31, 2007.

UnionBanCal Corporation
John A. Rice, Jr., 415-765-2998
Michelle R. Crandall, 415-765-2780