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)     December 16, 1996
                                                    ----------------------



                               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.






On December 16, 1996, the following news release was issued:




                      UNOCAL, TOSCO SIGN AGREEMENT FOR SALE
                    OF UNOCAL'S WEST COAST DOWNSTREAM ASSETS
                    ----------------------------------------


         El Segundo, Calif., Dec. 16, 1996 -- Unocal Corporation today said that
its Union Oil Company of California  subsidiary and Tosco  Corporation  signed a
definitive  agreement  for the sale of Unocal's West Coast  petroleum  refining,
marketing and  transportation  assets.  The sale is valued at  approximately  $2
billion.

         The assets to be sold are  currently  operated  by Unocal's 76 Products
Company business unit, which is headquartered in Costa Mesa,  Calif. The company
expects the sale to close in the first quarter 1997.

         "This  sale  is  an  important  step  in  Unocal's  transition  from  a
mid-sized,  regional  integrated  oil  company  to  being  the  world's  largest
independent  oil and gas  producer  with a major focus on project  development,"
said Roger C. Beach,  Unocal  chairman and chief executive  officer.  "With this
sale,  we look to shifting  significant  resources  to  potentially  high-return
opportunities in the fast-growing  economies of Asia and strengthen our resource
base in the Louisiana/Gulf of Mexico region."

         The  company has said it expects to use the  proceeds  from the sale to
invest in new  projects,  reduce  debt by about $800  million and buy back up to
$400 million of the company's common stock.

         The fixed assets to be sold include Unocal's  California  refineries in
San Francisco,  Santa Maria and Los Angeles,  which have a combined  capacity of
251,000-barrels per day; various terminals, bulk plants and pipelines;  Unocal's


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lubricants  business;  Unocal's  retail  marketing  business,   including  1,100
controlled sites and 250 unbranded,  non-controlled sites in six Western states;
the company's commercial and industrial petroleum products business; credit card
systems; and other assets.

     Unocal  expects to record a $375 million  aftertax  book loss in the fourth
quarter 1996 as a result of the sale.

         The sale is subject to approval by Tosco  shareholders and clearance by
various regulatory  agencies,  and the satisfaction of certain other conditions.
Tosco plans to use debt and equity financing for the purchase.


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ITEM 7.         FINANCIAL STATEMENTS AND EXHIBITS.

         (c)    EXHIBITS
      
2.1            Sale  and  Purchase  Agreement  for 76  Products  Company,  dated
               December 14, 1996,  between Union Oil Company of  California  and
               Tosco Corporation (without attachments or schedules).

2.2            Form of Stock Purchase and Shareholder Agreement,  to be dated as
               of January 15, 1997, by and between Tosco  Corporation  and Union
               Oil Company of California, together with form of Supplement No. 1
               thereto.

2.3            Form of  Environmental  Agreement,  to be dated as of the closing
               date, by and between  Union Oil Company of  California  and Tosco
               Corporation (without schedules.


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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: January 3, 1997                           By: /s/ CHARLES S. MCDOWELL
- -----------------------                           ---------------------------
                                                  Charles S. McDowell,
                                                  Vice President and Comptroller




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                               UNOCAL CORPORATION
                                  EXHIBIT INDEX

2.1            Sale  and  Purchase  Agreement  for 76  Products  Company,  dated
               December 14, 1996,  between Union Oil Company of  California  and
               Tosco Corporation (without attachments or schedules).

2.2            Form of Stock Purchase and Shareholder Agreement,  to be dated as
               of January 15, 1997, by and between Tosco  Corporation  and Union
               Oil Company of California, together with form of Supplement No. 1
               thereto.

2.3            Form of  Environmental  Agreement,  to be dated as of the closing
               date, by and between  Union Oil Company of  California  and Tosco
               Corporation (without schedules. 





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