UnionBanCal Corporation to Release First Quarter 2007 Earnings and Host Conference Call and Webcast

  
    
  
  
    
      UnionBanCal Corporation (NYSE: UB) announced today that it would release 
      first quarter 2007 results after the market close on Thursday, April 19, 
      2007. UnionBanCal management will host a conference call to discuss 
      these results at 8:30 AM Pacific (11:30 AM Eastern) on April 20, 2007. 
      This call is open to all interested parties. From locations within the 
      United States, the call-in number is 800-230-1951 (612-332-0107 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.uboc.com. 
      You may access the Investor Relations section of the website via the 
      About Us 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 April 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), April 20, until 11:59 
      PM Pacific, April 27 (2:59 AM Eastern, April 28). The reservation number 
      for this playback is 868035.
    
    
      Based in San Francisco, UnionBanCal Corporation is a bank holding 
      company with assets of $52.6 billion at December 31, 2006. Its primary 
      subsidiary, Union Bank of California, N.A., had 321 banking offices in 
      California, Oregon and Washington, and 2 international offices at 
      December 31, 2006.