EXHIBIT 10.1


                         FORM OF UNIONBANCAL CORPORATION
                           PERFORMANCE SHARE AGREEMENT


This Agreement is made as of January 1, 2006, (the "Award Date"), between
UNIONBANCAL CORPORATION (the "Company" or "UNBC") and ___________________
("Participant").

                                   WITNESSETH:

WHEREAS, the Company has adopted the 1997 UnionBanCal Corporation Performance
Share Plan, as amended and restated (the "Plan") authorizing the grant of Target
Awards of Performance Shares to eligible individuals in connection with the
performance of services for the Company and its Subsidiaries (as defined in the
Plan). The Plan, including the definition of terms, is incorporated in this
Agreement by reference and made a part of it. In the event of any conflict among
the provisions of the Plan document and this Agreement, the Plan document shall
prevail; and

WHEREAS, the Company regards Participant as a valuable contributor to the
Company, and has determined that it would be to the advantage and interest of
the Company and its shareholders to grant to Participant the Target Award of
Performance Shares provided for in this Agreement, subject to performance
against certain criteria, as an inducement to remain in the service of the
company and as an incentive for increased efforts during such service;

NOW, THEREFORE, in consideration of the foregoing premises, and the mutual
covenants herein contained, the parties to this Agreement hereby agree as
follows:

1.   TARGET AWARD. The Company hereby grants to Participant __________________
     Performance Shares for the Performance Cycle extending from JANUARY 1, 2006
     THROUGH DECEMBER 31, 2008. Performance Shares are not actual shares of
     Company stock and, therefore, do not convey any shareholder rights.

2.   EARNED AWARD.  The number of  Performance  Shares  actually  earned will be
     based on the Company's  percentile  ranking  relative to the Peer Banks for
     RETURN ON AVERAGE EQUITY, subject to any adjustments that may be made under
     the provisions of this Agreement or of Section 8 of the Plan, for the years
     2006, 2007, and 2008, according to the following table:

              UNBC %ile Ranking                    Multiple of Target
              vs. Peer Banks                       Award Earned

              => 75th %ile                                2X
                 50th %ile                                1X
                 25th %ile                              .25X
               < 25th %ile                                0X

     The number of Performance Shares actually earned may be increased up to 20%
     (except for Named Executive Officers), or decreased up to 20% at the
     discretion of the Committee, subject to a maximum Earned Award of two times
     the Target Award.

     For UNBC percentile ranking between the 75th and 25th percentiles, other
     than at the 50th percentile, the Committee may interpolate between levels
     in order to determine the appropriate multiple of the Target Award.


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3.   VALUE AND PAYMENT OF EARNED AWARDS. The value payable to Participant for an
     Earned Award shall equal one share of Company common stock for each
     Performance Share actually earned. The shares of Company common stock shall
     be issued pursuant to the Company's Management Stock Plan within 2-1/2
     months following the end of the Performance Cycle or credited to the
     Participant's account as deferred stock units if deferred in accordance
     with such procedures as the Company may prescribe. The Company shall, to
     the extent required by law, have the right to deduct from payments the
     amount of any federal, state or local taxes required by law to be withheld.

4.   DESIGNATION OF BENEFICIARIES. On a form provided to the Company,
     Participant may designate a beneficiary or beneficiaries to receive, in the
     event of Participant's death, all or part of any amounts to be distributed
     to Participant under the Plan.

5.   EMPLOYEE RIGHTS. Participant may not assign or transfer his or her rights
     under the Plan except as expressly provided under the Plan. Participation
     in the Plan does not create a contract of employment, imply or confer any
     other employment rights, or confer any ownership, security or other rights
     to Company assets.

6.   TERMINATION OF EMPLOYMENT. Termination prior to the end of the Performance
     Cycle shall result in forfeiture of all opportunity to receive an Earned
     Award, except as provided below:

     (a)  If Participant's employment is terminated at any time after the first
          nine months of the Performance Cycle (i) under the provisions of the
          Company's Separation Pay Plan (pursuant to which Participant has
          executed a release agreement), or (ii) by reason of retirement
          (defined below) or death, or if Participant becomes entitled to
          long-term disability benefits under the Union Bank of California Long
          Term Disability Plan after the first nine months of the Performance
          Cycle, Participant (or Participant's beneficiary or estate in the
          event of death) will be eligible to receive an Earned Award equal to
          the sum of (1) the number of Performance Shares (as a multiple of the
          Target Award) earned for the years in the Performance Cycle that were
          completed prior to the termination of employment or disability, plus
          (2) 100% of the Target Award for each of the years in the Performance
          Cycle that were not completed prior to the termination of employment
          or disability. For purposes of this Agreement, "retirement" means
          termination of employment with the Company and its Subsidiaries after
          attaining age sixty (60) with ten (10) years of service, or age
          sixty-two (62) with five (5) years of service, with the Company or any
          of its Subsidiaries.

     (b)  Payment for an Earned Award under Section 6(a) shall be made under
          Section 3, in shares of common stock or deferred stock units credited
          to the Participant's account, if applicable, within 2-1/2 months
          following the employment termination date.


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     (c)  If Participant is on a leave of absence from the Company or a
          Subsidiary because of disability, or for the purpose of serving the
          government of the country in which the principal place of employment
          of Participant is located, either in a military or civilian capacity,
          or for such other purpose or reason as the Committee may approve,
          Participant shall not be deemed during the period of such absence, by
          virtue of such absence alone, to have terminated employment with the
          Company or a Subsidiary except as the Committee may otherwise
          expressly provide.

7.   MANDATORY ARBITRATION. Any dispute arising out of or relating to this
     Agreement, including its meaning or interpretation, shall be resolved
     solely by arbitration before an arbitrator selected in accordance with the
     rules of the American Arbitration Association. The location for the
     arbitration shall be in San Francisco, Los Angeles or San Diego as selected
     by the Company in good faith. Judgment on the award rendered may be entered
     in any court having jurisdiction. The party the arbitrator determines is
     the prevailing party shall be entitled to have the other party pay the
     expenses of the prevailing party, and in this regard the arbitrator shall
     have the power to award recovery to such prevailing party of all costs and
     fees (including attorney fees and a reasonable allocation for the costs of
     the Company's in-house counsel), administrative fees, arbitrator's fees and
     court costs, all as determined by the arbitrator. Absent such award of the
     arbitrator, each party shall pay an equal share of the arbitrator's fees.
     All statutes of limitation which would otherwise be applicable shall apply
     to any arbitration proceeding under this paragraph. The provisions of this
     paragraph are intended by the Participant and the Company to be exclusive
     for all purposes and applicable to any and all disputes arising out of or
     relating to this Agreement. The arbitrator who hears and decides any
     dispute shall have jurisdiction and authority only to award compensatory
     damages to make whole a person or entity sustaining foreseeable economic
     damages, and, shall not have jurisdiction and authority to make any other
     award of any type, including without limitation, punitive damages,
     unforeseeable economic damages, damages for pain, suffering or emotional
     distress, or any other kind or form of damages. The remedy, if any, awarded
     by the arbitrator shall be the sole and exclusive remedy for any dispute
     which is subject to arbitration under this paragraph.

8.   CALIFORNIA LAW. The Plan and this Agreement shall be construed and enforced
     according to the laws of the State of California to the extent not
     preempted by the federal laws of the United States of America.

9.   SECTION 409A. Participant acknowledges that Participant's receipt of
     certain benefits under this Agreement otherwise payable upon the
     termination of employment may be subject to Section 409A of the Internal
     Revenue Code or similar laws regulating the payment of deferred
     compensation ("Section 409A"), which, if applicable, could require a delay
     in the payment of such benefits for a period of at least six (6) months
     following separation from service. Participant acknowledges and agrees that
     should the Company in good faith determine that any such benefits to be
     provided upon termination to Participant pursuant to this Agreement are
     subject to Section 409A, the Company may delay the payment of such benefits
     for at least six (6) months (or such other period as may be applicable),
     after first notifying Participant of its intention to do so.


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IN WITNESS WHEREOF, the parties hereto have duly executed this Performance Share
Agreement as of the date first above written. The Participant also hereby
acknowledges receipt of a copy of the 1997 UnionBanCal Corporation Performance
Share Plan, as amended and restated.

UnionBanCal Corporation


By: _____________________________________
    Paul Fearer, Executive Vice President



                              __________________________________________________
                              Participant Signature


                              __________________________________________________
                              Participant Printed Name                Employee #


                              __________________________________________________
                              Social Security Number


                              __________________________________________________
                              Street Address


                              __________________________________________________
                              City                   State              Zip Code


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