SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 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)        June 15, 2000
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                               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.
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Patent Case
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On June 15, 2000, the company received $91 million in payment of the 1998 patent
infringement  judgment  entered in its favor by the U.S.  District Court for the
Central  District of California.  The judgment  followed a trial in which a jury
found that six (now five) major  California  oil  companies had infringed one of
the  company's  five  reformulated  gasoline  patents  in  their  production  of
California  motor  gasoline  during a five-month  period in 1996 and awarded the
company  $69  million in damages  for that  infringement.  The  judgment,  which
includes interest and attorneys' fees, was upheld in March 2000 by a three-judge
panel of the U.S.  Court of Appeals for the Federal  Circuit.  The full  Circuit
Court  declined to rehear the appeal in May.  Press reports have  indicated that
certain of the defendant oil companies may petition the U.S. Supreme Court to
review the decision of the Circuit Court. The company will record the payment to
earnings in the second quarter of 2000.



Acquisition of Additional Northrock Resources Ltd. Shares
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The company's  Unocal Canada  Management  Limited  subsidiary  has acquired 21.1
million shares of Northrock Resources Ltd.  (Northrock) common stock pursuant to
the May 19,  2000  offer  made to  Northrock's  shareholders.  This  brings  the
company's  ownership of Northrock  shares to 40.1 million,  or  approximately 96
percent of the outstanding Northrock shares.

The company has  extended the offer to June 30, 2000,  pending  confirmation  of
guaranteed  deliveries made before the extension.  When  confirmations  of those
deliveries are provided,  the company intends to exercise its statutory right of
compulsory  acquisition to acquire all of the remaining shares at the same price
as those  tendered to the offer.  On  completion  of that  process,  Northrock's
shares will be delisted from The Toronto Stock Exchange.


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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:  June 23, 2000                        By:  /s/ JOE D. CECIL
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                                                Joe D. Cecil
                                                Vice President and Comptroller


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