UNITED STATES
                       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): October 29, 2004




                        Pioneer Natural Resources Company
             ------------------------------------------------------
             (Exact name of Registrant as specified in its charter)



          Delaware                    1-13245               75-2702753
----------------------------        ------------        -------------------
(State or other jurisdiction        (Commission          (I.R.S. Employer
     of incorporation)              File Number)        Identification No.)



5205 N. O'Connor Blvd., Suite 900, Irving, Texas               75039
------------------------------------------------            ----------
   (Address of principal executive offices)                 (Zip Code)


                                 (972) 444-9001
              ----------------------------------------------------
              (Registrant's telephone number, including area code)



                                 Not applicable
          -------------------------------------------------------------
          (Former name or former address, if changed since last report)


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

| | Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)
| | Soliciting  material pursuant  to Rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)
| | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))
| | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))








                        PIONEER NATURAL RESOURCES COMPANY

                                TABLE OF CONTENTS


                                                                          Page

Item 1.01.  Entry into a Material Definitive Agreement...............      3

Item 1.02.  Termination of a Material Definitive Agreement...........      3

Item 9.01.  Financial Statements and Exhibits

            (c)   Exhibits...........................................      3

Signature............................................................      4

Exhibit Index........................................................      5



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                        PIONEER NATURAL RESOURCES COMPANY

Item 1.01.   Entry into a Material Definitive Agreement

     On October 29, 2004,  Pioneer Natural  Resources  Company (the "Company" or
"Pioneer") entered into a new Non-Competition Agreement with Mark S. Sexton, the
former President,  Chief Executive Officer and director of Evergreen  Resources,
Inc. ("Evergreen") and a director of the Company since the merger of the Company
and Evergreen on September 28, 2004. The  Non-Competition  Agreement is attached
hereto as exhibit 10.1.

     On May 3, 2004,  the Company and  Evergreen  entered into an Agreement  and
Plan of Merger, a  Non-Competition  Agreement with Mr. Sexton and Consulting and
Non-Competition  Agreements with Evergreen's  Chief Operating  Officer and Chief
Financial  Officer.  Prior to  completion  of the merger in  September  2004,  a
dispute  arose  concerning  the amounts that would be payable to the  executives
pursuant to their change in control  agreements  upon  completion of the merger.
Pioneer  believed the aggregate  amount that would be payable was  approximately
$7.6 million  based on Pioneer's  analysis of the  historical  cash salaries and
cash bonuses and estimated tax gross-ups for the three Evergreen executives. The
executives  asserted that the change in control  payment  calculation  must also
take into account the  executives'  restricted  stock awards  granted when their
annual compensation was set and that the aggregate cash payable to them would be
up to $30.0 million, depending on the value attributed to Evergreen common stock
for purposes of the  calculation.  Pioneer  disagreed with the  methodology  and
stock  valuations the executives used to calculate the cash amount that would be
payable to them.  Pioneer  and the three  Evergreen  executives  had a number of
discussions  to attempt to resolve the  disagreement  prior to the completion of
the merger, but their efforts were unsuccessful.

     During  October  2004,  Pioneer  and the  three  executives  settled  their
disputes.  Associated  therewith,  Pioneer  paid to the  three  executives  $6.4
million of  aggregate  non-competition  payments  and $7.6  million of change in
control payments determined in accordance with the change in control agreements,
including a $2.6 million change in control payment to Mr. Sexton.

     Mr. Sexton's new Non-Competition Agreement has a two-year term and replaces
the  Non-Competition  Agreement  dated May 3, 2004  between  the Company and Mr.
Sexton. The Non-Competition Agreement provides that Mr. Sexton will not:

     (i)    engage in or be involved with a competing activity with the  Company
            in the Raton Basin of Colorado or New Mexico,

     (ii)   solicit with respect to hiring any employee of the Company and

     (iii)  acquire any oil and gas interests within 20 miles of any oil and gas
            interests owned by Evergreen  in three areas  generally described as
            the Uintah  and Piceance Basin  in Utah and Colorado and the Western
            Sedimentary Basin  in Canada without  providing the  Company 30 days
            prior written  notice and offering  the Company the right to acquire
            up to 50 percent of the oil and gas interests at cost.

Mr.  Sexton was paid $3.1  million as  compensation  for  entering  the new Non-
Competition Agreement.

Item 1.02. Termination of a Material Definitive Agreement

     As  discussed  above  under "Item  1.01.  Entry into a Material  Definitive
Agreement",  the Non-Competition Agreement dated May 3, 2004 between the Company
and Mr. Sexton has been terminated as of October 29, 2004.

Item 9.01. Financial Statements and Exhibits

       (c) Exhibits

           10.1   Non-Competition  Agreement,  dated October 29,  2004,  between
                  Pioneer Natural Resources Company and Mark S. Sexton.


                                       3









                        PIONEER NATURAL RESOURCES COMPANY

                                S I G N A T U R E


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.

                                 PIONEER NATURAL RESOURCES COMPANY




Date: November 4, 2004           By:   /s/ Richard P. Dealy
                                     --------------------------------------
                                     Richard P. Dealy
                                     Vice President and Chief Accounting Officer


                                       4








                       PIONEER NATURAL RESOURCES COMPANY

                                 EXHIBIT INDEX


Exhibit No.         Description
-----------         -----------


  10.1(a)           Non-Competition Agreement, dated October 29, 2004, between
                    Pioneer Natural Resources Company and Mark S. Sexton.

-------------
(a) filed herewith


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