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): August 2, 2005




                        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 2.02.  Results of Operations and Financial Condition.............    3

Item 9.01.  Financial Statements and Exhibits

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

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

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




                                       2












                        PIONEER NATURAL RESOURCES COMPANY


Item 2.02.   Results of Operations and Financial Condition

     The information in this document includes  forward-looking  statements that
are made  pursuant  to the Safe  Harbor  Provisions  of the  Private  Securities
Litigation  Reform  Act of 1995.  Forward-looking  statements  and the  business
prospects of Pioneer Natural  Resources Company (the "Company") are subject to a
number of risks and uncertainties,  which may cause the Company's actual results
in future  periods to differ  materially  from the  forward-looking  statements.
These risks and uncertainties include, among other things, volatility of oil and
gas prices,  product supply and demand,  competition,  government  regulation or
action,  international  operations  and associated  international  political and
economic  instability,  litigation,  the  costs  and  results  of  drilling  and
operations, availability of drilling equipment, the Company's ability to replace
reserves,  implement its business plans, or complete its development projects as
scheduled,  access to and cost of  capital,  uncertainties  about  estimates  of
reserves,  quality of technical data,  environmental  and weather risks, acts of
war or terrorism.  These and other risks are  described in the Company's  Annual
Report on Form 10-K and Quarterly  Reports on Form 10-Q that are available  from
the Company or the United States Securities and Exchange Commission.

     On August  2,  2005,  the  Company  issued a news  release  with  financial
statements and schedules  that are attached  hereto as exhibit 99.1. In the news
release,  the Company announced  financial and operating results for the quarter
ended June 30, 2005,  provided an  operations  update and provided the Company's
third quarter financial  outlook and full-year 2005 production estimate based on
current expectations.

Item 9.01.   Financial Statements and Exhibits

     (c)     Exhibits

             99.1  News Release and Schedules Attached to News Release dated
                   August 2, 2005.


                                       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:  August 2, 2005           By:  /s/  Darin G. Holderness
                                    ------------------------------------------
                                    Darin G. Holderness
                                    Vice President and Chief Accounting Officer


                                       4






                        PIONEER NATURAL RESOURCES COMPANY

                                  EXHIBIT INDEX


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

  99.1(a)        News Release and Schedules Attached to News Release dated
                 August 2, 2005.

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



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