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): January 25, 2007

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                        PIONEER NATURAL RESOURCES COMPANY
             (Exact name of registrant as specified in its charter)


           Delaware                   1-13245               75-2702753
       (State or other              (Commission          (I.R.S. Employer
jurisdiction of incorporation)      File Number)      Identification Number)

    5205 N. O'Connor Blvd                                     75039
          Suite 200                                         (Zip code)
        Irving, Texas
   (Address of principal
    executive offices)


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

                                 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.

              (d)   Exhibits........................................      3

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

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





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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 that 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,   the  ability  to  obtain
environmental  and  other  permits  and the  timing  thereof,  other  government
regulation  or action,  third  party  approvals,  international  operations  and
associated  international  political and economic instability,  litigation,  the
costs  and  results  of  drilling  and  operations,   availability  of  drilling
equipment,  Pioneer'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,  the assumptions underlying
production  forecasts,  quality of  technical  data,  environmental  and weather
risks,  acts of war or  terrorism.  These and other risks are  described  in the
Company's  2005 Annual  Report on Form 10-K and  Quarterly  Reports on Form 10-Q
that are filed with the United States Securities and Exchange Commission.

     On January 25, 2007,  the Company  issued the news release that is attached
hereto as exhibit 99.1. The news release announced, among other information, the
Company's updated guidance for its fiscal quarter ended December 31, 2006, based
on current expectations.

Item 9.01.    Financial Statements and Exhibits.

         (d)  Exhibits.

              99.1  -    News Release dated January 25, 2007.






                                       3






                                   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.



                                     PIONEER NATURAL RESOURCES COMPANY



                                     /s/ Darin G. Holderness
                                     ------------------------------------------
                                     Darin G. Holderness
                                     Vice President and Chief Accounting Officer


Dated: January 25, 2007




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                                  EXHIBIT INDEX



         Exhibit
         Number                 Exhibit Title
         -------                -------------

           99.1 (a)             News Release dated January 25, 2007


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           (a) Furnished herewith.




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