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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
    
                                 FORM 10-Q/A     

        [X]    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D)
                    OF THE SECURITIES EXCHANGE ACT OF 1934

               FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 1996

                                      OR

        [ ]    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                FOR THE TRANSITION PERIOD FROM _________ TO __________

                        COMMISSION FILE NUMBER 1-11566

                          MARKWEST HYDROCARBON, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

          DELAWARE                                            84-1352233
 (State or other jurisdiction of                          (I.R.S. Employer
  incorporation or organization)                         Identification No.)

                  5613 DTC PARKWAY, ENGLEWOOD, COLORADO 80111
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:  303-290-8700

     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports)
                              Yes  X     No    
                                   --       --, and

(2) has been subject to such filing requirements for the past 90 days,
                              
                              Yes        No X
                                   --       --

     The registrant had 8,485,000 shares of common stock, $.01 per share par
value, outstanding as of October 31, 1996.

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                                   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 thereunto duly authorized.



                                             MarkWest Hydrocarbon, Inc.
                                                   (Registrant)



Date:  November 21, 1996                   BY: /s/ Brian T. O'Neill
                                              ---------------------------------
                                               Brian T. O'Neill
                                                   
                                               Senior Vice President, and
                                               Chief Operating Officer     


                                           BY: /s/ Faye E. McGuar
                                              ---------------------------------
                                               Faye E. McGuar
                                               Chief Accounting Officer


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