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 19, 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 2.06.  Material Impairments..............................      3

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





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                        PIONEER NATURAL RESOURCES COMPANY


Item 2.06.   Material Impairments


     On October 19, 2004, the officers of Pioneer Natural Resources Company (the
"Company")  concluded  that a material  charge for impairment was required under
Statement  of  Financial  Accounting  Standards  No.  144,  "Accounting  for the
Impairment  or Disposal  of  Long-Lived  Assets" for its assets in the  Gabonese
Olowi  field as  development  has been  postponed  indefinitely.  As a result of
significant  increases in projected field  development  costs,  primarily due to
recent  increases  in  steel  costs,  the  project  does not  offer  competitive
projected returns.  The Company has recorded an associated  impairment charge in
the third quarter of 2004 with an after-tax effect of approximately $10 million.
The impairment  charge  eliminates the carrying value of the Company's  Gabonese
Olowi  field.  Additionally,  the Company  does not expect to have any  material
future cash expenditures associated with the Olowi field project.




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                       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: October 22, 2004           By: /s/ Richard P. Dealy
                                    -------------------------------------------
                                    Richard P. Dealy
                                    Vice President and Chief Accounting Officer




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