SECURITIES AND EXCHANGE COMMISSION
                                 Washington, DC



                                    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): July 25, 1997.


                            MILLENNIUM CHEMICALS INC.
             (Exact name of registrant as specified in its charter)


                                    Delaware
                 (State or Other Jurisdiction of Incorporation)



          1-12091                                                 22-3436215
(Commission File                                                (IRS Employer
         Number)                                             Identification No.)

                              99 Wood Avenue South
                            Iselin, New Jersey 08830
                    (Address of principal executive offices)

                                                             732-603-6600
              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
          (Former Name or Former Address, if Changed Since Last Report)







Item 5.

On July  25,  1997  Millennium  Chemicals  Inc.  (`Millennium")  signed a Master
Transaction  Agreement  pursuant  to which it  agreed  to  create a  partnership
("Partnership")  with Lyondell  Petrochemical  Company  ("Lyondell").  Under the
terms of the Master Transaction  Agreement,  which is attached hereto as exhibit
10.25 and is incorporated by reference, in exchange for a 43% ownership position
in the Partnership, Millennium will contribute the following:

         Millennium's olefins and polymers businesses,  located at manufacturing
         facilities in Clinton, Iowa; Morris, Illinois; LaPorte, Port Arthur and
         Chocolate Bayou, Texas;

         Millennium's   performance   polymers   business   with   manufacturing
         facilities in Tuscola,  Illinois;  Fairport Harbor and Heath, Ohio; and
         Crocket, Texas;

         Millennium's   synthetic   ethanol  and  ethyl  ether  businesses  with
         facilities  in Tuscola,  Illinois;  Newark,  New Jersey;  and  Anaheim,
         California;

         Research and  technology  groups and a research  center in  Cincinnati,
         Ohio.

The  Partnership  will assume $750 million of Millennium's  inter-company  debt,
which will be repaid  from the  proceeds  of new bank debt to be arranged by the
Partnership. Millennium will guarantee $750 million of the new bank facility. In
addition,  Millennium  will retain $250 million of accounts  receivable from the
contributed business.

In exchange for a 57% ownership position, Lyondell will contribute:

         Lyondell's  olefins  business,  comprised of two olefins  plants at the
         Channelview Petrochemical Complex near Houston, Texas;

         Lyondell's   polymers  business,   comprised  of  three   manufacturing
         facilities located in Pasadena, Victoria and Matagorda Counties, Texas;

         A technology group and certain business functions located in and   near
         Houston, Texas;

         $745 million of outstanding debt; and a

         $345 million note payable to the Partnership.

The Partnership will be governed by a partnership governance committee comprised
of three  representatives  of Millennium and three  representatives of Lyondell.
The two companies issued a joint press release announcing the Partnership, dated
July 28, 1997, which is attached hereto as Exhibit 99 and incorporated herein by
reference.   The   transaction  is  subject  to  approval  by  both   companies'
stockholders  and satisfaction of certain other  conditions.  The transaction is
expected to close by the end of the year.






                                   SIGNATURES


         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 hereunto duly authorized.


                            MILLENNIUM CHEMICALS INC.
                                  (Registrant)



Date:  July 29, 1997                       By:  /s/ George H. Hempstead, III
                                                 ----------------------------
                                                 George H. Hempstead, III
                                                 Senior Vice President - Law and
                                                 Administration and Secretary







EXHIBIT INDEX

                                                                  Sequentially
Exhibit                                                           Numbered Page
No.                                         Exhibits              Where Located

10.25                               Master Transaction Agreement

99                                  Press Release