EXHIBIT 99.1


Union
Bank of                        NEWS RELEASE
California


                   FOR IMMEDIATE RELEASE (SEPTEMBER 17, 2007)

                             CONTACT:STEPHEN JOHNSON

                                 (415) 765-3252



            UNION BANK OF CALIFORNIA FINALIZES COMPLIANCE AGREEMENTS


SAN FRANCISCO - Union Bank of California, N.A., the principal subsidiary of
UnionBanCal Corporation (NYSE: UB), announced today that it entered into
agreements to resolve previously disclosed issues relating to its Bank Secrecy
Act/Anti-Money Laundering (BSA/AML) compliance program. The bank said today that
it remains committed to achieving an effective and sustained BSA/AML program. As
part of the resolution, the bank:

          o    Agreed to a consent order and payment of a civil money penalty of
               $10 million assessed concurrently by the Office of the
               Comptroller of the Currency (OCC) and the Financial Crimes
               Enforcement Network (FinCEN) relating to the bank's Bank Secrecy
               Act/Anti-Money Laundering (BSA/AML) compliance controls and
               processes. A reserve for this penalty was established in the
               second quarter of 2007.

          o    Entered into a deferred prosecution agreement (DPA) with the
               Department of Justice (DOJ) under which the government has agreed
               to defer prosecution of a BSA Program violation primarily related
               to the bank's discontinued international banking business and
               dismiss prosecution completely if the bank meets the conditions
               of the DPA, including complying with the OCC consent order for
               one year. The bank sold its international banking business in
               October 2005.

          o    Agreed to a payment of $21.6 million to the DOJ. This expense
               will be recorded in the third quarter of 2007.

Under the agreements, Union Bank of California committed to a number of
improvements in its BSA/AML compliance program aimed at monitoring, detecting
and reporting suspicious activities. The bank cooperated fully with its
regulators, the OCC and FinCEN, and the DOJ in reaching this settlement.


                                     -more-





Union Bank Finalizes Compliance Agreements
Page 2



"Over the last several years, the bank has devoted considerable resources to
eliminate weaknesses and correct deficiencies in its compliance programs. But
that of itself does not diminish the seriousness of this matter. We remain
firmly committed to the ongoing evaluation, enhancement and improvement of our
processes and procedures," said Masaaki Tanaka, president and chief executive
officer. "We will continue to work with our regulators to ensure that our focus
on compliance is effective, sustainable and responsive so that failures of this
kind are not repeated in the future."

Based in San Francisco, UnionBanCal Corporation (NYSE:UB) is a bank holding
company with assets of $53.2 billion at June 30, 2007. Its primary subsidiary,
Union Bank of California, N.A., has 327 banking offices in California, Oregon
and Washington, and 2 international offices. The company's Web site is located
at WWW.UNIONBANK.COM


Forward-Looking Statements

The following appears in accordance with the Private Securities Litigation
Reform Act. This press release includes forward-looking statements that involve
risks and uncertainties. Such statements include, without limitation,
management's expectations regarding the bank's compliance programs and their
future effectiveness. Forward-looking statements involve certain risks and
uncertainties and actual events may differ materially from those discussed in
each statement. Factors that could cause actual results to differ are discussed
under the heading "Risk Factors" and in other sections of the Company's annual
report on Form 10-K for the year ended December 31, 2006, which is on file with
the SEC, and in the Company's other current and periodic reports filed from time
to time with the SEC. All forward-looking statements included in this press
release are based on information available at the time of the release, and the
Company assumes no obligation to update any forward-looking statement.




                                       ###