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 3, 2006




                        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 200, 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

            (d)  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 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
(including its plan to repurchase  stock), 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 available from the Company or the United
States Securities and Exchange Commission.

     On August  3,  2006,  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, 2006,  provided an  operations  update and provided the Company's
third quarter financial outlook based on current expectations.

     During  the  second  and third  quarters  of 2005 and the first and  second
quarters  of 2006,  the Company  divested  certain  Canadian  and Gulf of Mexico
assets  and  all of its  Argentine  assets.  In  accordance  with  Statement  of
Financial  Accounting  Standards  No. 144,  "Accounting  for the  Impairment  or
Disposal of  Long-Lived  Assets"  ("SFAS  144"),  the Company has  reflected the
current and  comparative  prior year  results of  operations  of those  divested
assets,  net of tax, as  discontinued  operations  rather than as  components of
continuing  operations.  Attached  hereto as Exhibit  99.2 is a  schedule  which
provides  the  Company's  2005  unaudited  quarterly  results of  operations  in
accordance  with SFAS 144,  wherein the historic  results of  operations  of the
divested  properties,  net  of  tax,  have  been  reclassified  as  income  from
discontinued operations. Exhibit 99.2 also provides the Company's 2005 quarterly
sales volumes adjusted to exclude the sales volumes of the divested properties.

Item 9.01.   Financial Statements and Exhibits

       (d)   Exhibits

             99.1  News Release  and Schedules  Attached to News  Release  dated
                   August 3, 2006.
             99.2  2005  Unaudited  Quarterly Results  Adjusted for Discontinued
                   Operations.


                                       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 3, 2006            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 3, 2006.
  99.2(a)            2005 Unaudited  Quarterly Results Adjusted for Discontinued
                     Operations.



 -------------
(a) Filed herewith.



                                       5