SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K



                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


 Date of report (Date of earliest event reported)       December 3, 2002
                                                  --------------------------



                               UNOCAL CORPORATION
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            (Exact name of registrant as specified in its charter)



                                    Delaware
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                 (State or Other Jurisdiction of Incorporation)



           1-8483                                 95-3825062
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(Commission File Number)              (I.R.S. Employer Identification No.)



2141 Rosecrans Avenue, Suite 4000, El Segundo, California        90245
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(Address of Principal Executive Offices)                       (Zip Code)



                              (310)  726-7600
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              (Registrant's Telephone Number, Including Area Code)








Item 5.      Other Events.

Director and Executive Officer Changes
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On December 3, 2002, Unocal  Corporation's board of directors elected Ferrell P.
McClean to serve as an independent  member of the board.  The board also elected
John W. Creighton, Jr., as Vice Chairman.

Ms. McClean is a retired  managing  director of JP Morgan,  where she was senior
advisor to the head of the Global Oil & Gas Group in Investment  Banking.  Prior
to JP Morgan's  merger with Chase,  she  co-headed  Global  Energy in Investment
Banking. She founded both the Leveraged Buyout Group and the Restructuring Group
at JP Morgan.

Ms. McClean holds a Bachelor of Arts degree from Radcliffe College.  She is also
a director of GrafTech International Ltd.

Mr.  Creighton,  who  served as  non-executive  Chairman  of  Unocal's  board of
directors in 2001,  has been a director  since 1995. He had resigned as Chairman
when he was appointed  interim Chief Executive Officer and Chairman of the board
of directors of UAL Corporation. He subsequently retired from those positions in
September,  2002 when a replacement was named. He is also the retired  President
and Chief Executive Officer of Weyerhaeuser Company.

Dennis P. R. Codon left the  position  of Senior  Vice  President,  Chief  Legal
Officer & General Counsel of the Company effective December 3, 2002, to evaluate
several opportunities outside the Company.

The Company plans to conduct a search to fill Mr. Codon's  position.  During the
transition,  Charles O.  Strathman and Timothy R. Thomas will lead the Company's
Law Department.  Effective  December 3, Mr.  Strathman became Vice President and
Chief Legal Officer and Mr. Thomas became Vice President & General Counsel.

Item 7. Financial Statements and Exhibits.

      (c) Exhibits:

          3 Bylaws of Unocal Corporation, as amended effective December 3, 2002.

         10 Agreement  and General  Release,  dated  November 6, 2002,  between
Unocal Corporation and Dennis P.R. Codon.

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized



                                  UNOCAL CORPORATION
                                  (Registrant)



Date:  December 9, 2002           By: /S/ John Briffett
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                                  John Briffett
                                  Assistant Comptroller