UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q


             / x / QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                  For the quarterly period ended June 30, 2006

                                       or

             /   / TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
               For the transition period from _______ to ________

                         Commission File Number: 1-13245

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

                 Delaware                                   75-2702753
      --------------------------------                 -------------------
       (State or other jurisdiction of                  (I.R.S. Employer
       incorporation or organization)                  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, former address and former fiscal year,
                          if changed since last report)

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                                Yes / x / No /   /

Indicate by check mark whether the registrant is a large  accelerated  filer, an
accelerated  filer, or a  non-accelerated  filer. See definition of "accelerated
filer and large  accelerated  filer" in Rule 12b-2 of the Exchange  Act.  (Check
one):

Large accelerated filer /x/   Accelerated filer / /   Non-accelerated filer / /

Indicate by check mark whether the  registrant is a shell company (as defined in
Rule 12b-2 of the Exchange Act).

                                Yes /   / No / x /

Number of shares of Common Stock outstanding as of July 26, 2006.....124,720,168







                        PIONEER NATURAL RESOURCES COMPANY

                                TABLE OF CONTENTS
                                                                          Page

Cautionary Statement Concerning Forward-Looking Statements.............     2

Definitions of Certain Terms and Conventions Used Herein...............     3

                          PART I. FINANCIAL INFORMATION

Item 1.         Financial Statements

                Consolidated Balance Sheets as of June 30, 2006
                   and December 31, 2005...............................     4

                Consolidated Statements of Operations for the
                   three and six months ended June 30, 2006 and 2005...     6

                Consolidated Statement of Stockholders' Equity for
                   the six months ended June 30, 2006..,...............     7

                Consolidated Statements of Cash Flows for the three
                   and six months ended June 30, 2006 and 2005.........     8

                Consolidated Statements of Comprehensive Income for the
                   three and six months ended June 30, 2006 and 2005...     9

                Notes to Consolidated Financial Statements.............    10

Item 2.         Management's Discussion and Analysis of Financial
                Condition and Results of Operations....................    32

Item 3.         Quantitative and Qualitative Disclosures About
                Market Risk............................................    46

Item 4.         Controls and Procedures................................    48

                           PART II. OTHER INFORMATION

Item 1.         Legal Proceedings......................................    49

Item 1A.        Risk Factors...........................................    49

Item 2.         Unregistered Sales of Equity Securities and Use
                of Proceeds............................................    50

Item 4.         Submission of Matters to a Vote of Security Holders....    50

Item 6.         Exhibits...............................................    51

Signatures      .......................................................    52

Exhibit Index  ........................................................    53

Cautionary Statement Concerning Forward-Looking Statements

     The  information  in this  Quarterly  Report on Form  10-Q  (the  "Report")
contains forward-looking  statements that involve risks and uncertainties.  When
used in this document, the words "believes," "plans," "expects,"  "anticipates,"
"intends,"  "continue," "may," "will," "could," "should," "future," "potential,"
"estimate," or the negative of such terms and similar expressions as they relate
to Pioneer Natural Resources  Company  ("Pioneer" or the "Company") are intended
to identify forward-looking statements. The forward-looking statements are based
on the Company's current  expectations,  assumptions,  estimates and projections
about the Company and the industry in which the Company  operates.  Although the
Company  believes  that  the  expectations  and  assumptions  reflected  in  the
forward-looking statements are reasonable,  they involve risks and uncertainties
that are difficult to predict and, in many cases,  beyond the Company's control.
Accordingly,  no assurances can be given that the actual events and results will
not be  materially  different  than the  anticipated  results  described  in the
forward-looking  statements.  See "Part I, Item 3.  Quantitative and Qualitative
Disclosures  About  Market  Risk" and "Part II, Item 1A.  Risk  Factors" in this
Report and "Item 1. Business -- Competition, Markets and Regulations", "Item 1A.
Risk  Factors" and "Item 7A.  Quantitative  and  Qualitative  Disclosures  About
Market Risk" in the Company's  Annual  Report on Form 10-K for a description  of
various factors that could  materially  affect the ability of Pioneer to achieve
the anticipated results described in the forward-looking statements. The Company
undertakes  no duty to publicly  update these  statements  except as required by
law.

                                        2






            Definitions of Certain Terms and Conventions Used Herein


       Within this Report, the following terms and conventions have specific
meanings:

       o "Bbl" means a standard barrel containing 42 United States gallons.
       o "Bcf" means billion cubic feet.
       o "BOE" means a  barrel of  oil equivalent  and is a  standard convention
          used to express oil  and gas volumes  on a  comparable  oil equivalent
          basis.  Gas  equivalents  are  determined  under the  relative  energy
          content method by  using the ratio of 6.0 Mcf of gas to 1.0 Bbl of oil
          or natural gas liquid.
       o  "BOEPD" means BOE per day.
       o  "Btu" means British thermal unit,  which is a measure of the amount of
          energy required to  raise the  temperature of one  pound of  water one
          degree Fahrenheit.
       o  "LIBOR" means London Interbank Offered Rate, which is a market rate of
          interest.
       o  "Mcf" means one thousand cubic feet and is a measure of natural gas
          volume.
       o  "MMBbl" means one million Bbls.
       o  "MMBOE" means one million BOEs.
       o  "MMBtu" means one million Btus.
       o  "NGL" means natural gas liquid.
       o  "NYMEX" means the New York Mercantile Exchange.
       o  "proved reserves"  mean the estimated quantities of crude oil, natural
          gas  and natural gas  liquids which  geological  and  engineering data
          demonstrate with  reasonable  certainty  to be  recoverable  in future
          years  from known  reservoirs  under  existing  economic and operating
          conditions, i.e.,  prices and  costs as  of the  date the  estimate is
          made.  Prices  include  consideration  of  changes in  existing prices
          provided  only by  contractual  arrangements,  but not on  escalations
          based upon future conditions.
              (i) Reservoirs are  considered proved if economic producibility is
          supported by either actual production or conclusive formation test.The
          area  of a  reservoir  considered  proved  includes  (A) that  portion
          delineated  by  drilling  and  defined  by  gas-oil  and/or  oil-water
          contacts, if any; and (B) the  immediately  adjoining portions not yet
          drilled, but which can be reasonably judged as economically productive
          on the  basis of  available  geological  and  engineering data. In the
          absence of information on fluid contacts,  the lowest known structural
          occurrence of  hydrocarbons  controls  the lower  proved limit  of the
          reservoir.
              (ii)  Reserves  which  can  be   produced   economically   through
          application of  improved recovery techniques (such as fluid injection)
          are included in the "proved" classification when successful testing by
          a pilot  project,  or the  operation of  an installed  program  in the
          reservoir, provides support for the  engineering analysis on which the
          project or program was based.
               (iii) Estimates of proved reserves do not  include the following:
          (A) oil  that  may  become  available  from  known  reservoirs  but is
          classified separately as "indicated  additional  reserves";  (B) crude
          oil,  natural gas  and natural  gas liquids,  the recovery of which is
          subject to  reasonable  doubt  because of  uncertainty  as to geology,
          reservoir characteristics  or economic factors; (C) crude oil, natural
          gas and  natural gas  liquids,  that may occur in undrilled prospects;
          and (D) crude oil, natural gas and  natural gas  liquids,  that may be
          recovered from  oil shales, coal,  gilsonite and  other such  sources.
       o  "SEC" means the United States Securities and Exchange Commission.
       o  With respect to information on the working interest in wells, drilling
          locations and acreage,  "net" wells, drilling  locations and acres are
          determined by multiplying "gross" wells,  drilling locations and acres
          by the Company's working interest in such wells, drilling locations or
          acres.  Unless  otherwise  specified,  wells,  drilling  locations and
          acreage statistics  quoted  herein  represent  gross  wells,  drilling
          locations or acres.
       o  Unless otherwise indicated, all currency amounts are expressed in U.S.
          dollars.


                                        3





                          PART I. FINANCIAL INFORMATION

Item 1.     Financial Statements

                        PIONEER NATURAL RESOURCES COMPANY

                           CONSOLIDATED BALANCE SHEETS
                                 (in thousands)


                                                                       June 30,      December 31,
                                                                         2006            2005
                                                                     -----------     ------------
                                                                     (Unaudited)
                                     ASSETS
                                                                               
Current assets:
  Cash and cash equivalents.......................................   $   457,042     $    18,802
  Accounts receivable:
     Trade, net of allowance for doubtful accounts of $5,769
       and $5,736 as of June 30, 2006 and December 31, 2005,
       respectively...............................................       166,110         336,062
     Due from affiliates..........................................           872           1,596
  Inventories.....................................................       115,917          79,659
  Prepaid expenses................................................         8,563          18,091
  Deferred income taxes...........................................       115,963         158,878
  Other current assets:
     Derivatives..................................................        20,855           1,246
     Other, net of allowance for doubtful accounts of $6,425
       as of December 31, 2005....................................         9,749           9,470
                                                                      ----------      ----------
          Total current assets....................................       895,071         623,804
                                                                      ----------      ----------
Property, plant and equipment, at cost:
  Oil and gas properties, using the successful efforts method
   of accounting:
     Proved properties............................................     7,196,266       8,499,253
     Unproved properties..........................................       192,777         313,881
  Accumulated depletion, depreciation and amortization............    (1,728,466)     (2,577,946)
                                                                      ----------      ----------
          Total property, plant and equipment.....................     5,660,577       6,235,188
                                                                      ----------      ----------
Goodwill..........................................................       311,346         311,651
Other property and equipment, net.................................        91,992          90,010
Other assets:
  Derivatives.....................................................         5,774           1,048
  Other, net of allowance for doubtful accounts of $92 as of
     June 30, 2006 and December 31, 2005..........................       102,668          67,533
                                                                      ----------      ----------
                                                                     $ 7,067,428     $ 7,329,234
                                                                      ==========      ==========



   The financial information included as of June 30, 2006 has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        4





                        PIONEER NATURAL RESOURCES COMPANY

                     CONSOLIDATED BALANCE SHEETS (Continued)
                        (in thousands, except share data)


                                                                          June 30,      December 31,
                                                                            2006            2005
                                                                        -----------     ------------
                                                                        (Unaudited)

                      LIABILITIES AND STOCKHOLDERS' EQUITY
                                                                                  
Current liabilities:
  Accounts payable:
     Trade...........................................................   $   229,720     $   330,151
     Due to affiliates...............................................         8,690          15,053
  Interest payable...................................................        30,500          40,314
  Income taxes payable...............................................        78,283          22,470
  Other current liabilities:
     Derivatives.....................................................       185,629         320,098
     Deferred revenue................................................       184,848         190,327
     Other...........................................................       163,418         114,942
                                                                         ----------      ----------
          Total current liabilities..................................       881,088       1,033,355
                                                                         ----------      ----------
Long-term debt.......................................................     1,263,994       2,058,412
Derivatives..........................................................       240,718         431,543
Deferred income taxes................................................     1,050,236         767,329
Deferred revenue.....................................................       574,155         664,511
Other liabilities and minority interests.............................       142,310         156,982
Stockholders' equity:
  Common stock, $.01 par value: 500,000,000 shares authorized;
     145,510,197 and 145,200,293 shares issued as of
     June 30, 2006 and December 31, 2005, respectively...............         1,455           1,452
  Additional paid-in capital.........................................     3,748,774       3,775,812
  Treasury stock, at cost: 22,455,678 and 18,368,109 shares as of
     June 30, 2006 and December 31, 2005, respectively...............    (1,040,775)       (882,382)
  Deferred compensation..............................................           -           (45,827)
  Retained earnings (accumulated deficit)............................       424,186        (184,320)
  Accumulated other comprehensive income (loss):
     Net deferred hedge losses, net of tax...........................      (288,499)       (506,636)
     Cumulative translation adjustment...............................        69,786          59,003
                                                                         ----------      ----------
          Total stockholders' equity.................................     2,914,927       2,217,102
Commitments and contingencies........................................
                                                                         ----------      ----------
                                                                        $ 7,067,428     $ 7,329,234
                                                                         ==========      ==========



   The financial information included as of June 30, 2006 has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        5





                        PIONEER NATURAL RESOURCES COMPANY

                      CONSOLIDATED STATEMENTS OF OPERATIONS
                      (in thousands, except per share data)
                                   (Unaudited)



                                                         Three months ended        Six months ended
                                                               June 30,                 June 30,
                                                       ----------------------    ----------------------
                                                          2006         2005        2006          2005
                                                       ---------    ---------    ---------    ---------
                                                                                  
Revenues and other income:
  Oil and gas.......................................   $ 407,570    $ 320,337    $ 787,038    $ 644,163
  Interest and other................................       9,741       12,031       26,852       14,051
  Gain (loss) on disposition of assets, net.........      (3,403)         109       (3,476)       2,250
                                                        --------     --------     --------     --------
                                                         413,908      332,477      810,414      660,464
                                                        --------     --------     --------     --------
Costs and expenses:
  Oil and gas production............................     103,066       79,640      197,749      160,584
  Depletion, depreciation and amortization..........      87,984       65,999      170,390      139,307
  Impairment of long-lived assets...................         -            471          -            623
  Exploration and abandonments......................      41,618       37,498      166,260       91,327
  General and administrative........................      29,468       26,596       61,715       54,084
  Accretion of discount on asset retirement
    obligations.....................................       1,154        1,043        2,302        2,089
  Interest..........................................      22,766       29,403       59,342       62,149
  Other.............................................      11,759       15,713       16,813       24,554
                                                        --------     --------     --------     --------
                                                         297,815      256,363      674,571      534,717
                                                        --------     --------     --------     --------
Income from continuing operations before
  income taxes......................................     116,093       76,114      135,843      125,747
Income tax provision................................     (50,207)     (53,885)     (70,924)     (75,796)
                                                        --------     --------     --------     --------

Income from continuing operations...................      65,886       22,229       64,919       49,951
Income from discontinued operations, net of tax.....      22,153      163,330      566,327      220,265
                                                        --------     --------     --------     --------
Net income..........................................   $  88,039    $ 185,559    $ 631,246    $ 270,216
                                                        ========     ========     ========     ========
Basic earnings per share:
  Income from continuing operations.................   $     .52    $     .16    $     .52    $     .35
  Income from discontinued operations, net of tax...         .18         1.16         4.48         1.55
                                                        --------     --------     --------     --------
  Net income........................................   $     .70    $    1.32    $    5.00    $    1.90
                                                        ========     ========     ========     ========
Diluted earnings per share:
  Income from continuing operations.................   $     .52    $     .16    $     .52    $     .35
  Income from discontinued operations, net of tax...         .17         1.12         4.34         1.51
                                                        --------     --------     --------     --------
  Net income........................................   $     .69    $    1.28    $    4.86    $    1.86
                                                        ========     ========     ========     ========
Weighted average shares outstanding:
  Basic.............................................     125,629      140,812      126,282      141,849
                                                        ========     ========     ========     ========
  Diluted...........................................     129,624      145,246      130,346      146,286
                                                        ========     ========     ========     ========
Dividends declared per share........................   $     -      $     -      $     .12    $     .10
                                                        ========     ========     ========     ========



         The financial information included herein has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        6





                        PIONEER NATURAL RESOURCES COMPANY

                 CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                                 (in thousands)
                                   (Unaudited)




                                                                                               Accumulated Other
                                                                                           Comprehensive Income (Loss)
                                                                                           ---------------------------
                                                                                                  Net
                                                                                   Retained    Deferred
                                           Additional                              Earnings     Hedge     Cumulative      Total
                                   Common   Paid-in     Treasury      Deferred   (Accumulated   Losses,   Translation  Stockholders'
                                   Stock    Capital       Stock     Compensation   Deficit)   Net of Tax  Adjustment     Equity
                                   ------  ----------  -----------  ------------ -----------  ----------- -----------  ------------
                                                                                               
Balance as of January 1, 2006...   $1,452  $3,775,812  $  (882,382)  $  (45,827)  $ (184,320) $ (506,636)   $ 59,003   $ 2,217,102

  Dividends declared ($.12
   per common share)............       -           -            -            -       (15,510)         -           -        (15,510)
  Conversion of senior notes....       -       (1,754)       2,156           -            -           -           -            402
  Exercise of long-term
   incentive plan stock options.       -           -        11,896           -        (7,230)         -           -          4,666
  Purchase of treasury stock....       -           -      (172,445)          -            -           -           -       (172,445)
  Tax benefits related to
   stock-based compensation.....       -        2,236           -            -            -           -           -          2,236
  Compensation costs:
    Adoption of SFAS 123(R).....       -      (45,827)          -        45,827           -           -           -             -
    Compensation awards.........        3          (3)          -            -            -           -           -             -
    Compensation costs included
     in net income..............       -       18,310           -            -            -           -           -         18,310
  Net income....................       -           -            -            -       631,246          -           -        631,246
  Other comprehensive income (loss):
    Deferred hedging activity,
     net of tax:
      Net deferred hedge gains..       -           -            -            -            -       36,948          -         36,948
      Net hedge losses included
       in continuing operations.       -           -            -            -            -       54,917          -         54,917
      Net hedge losses included
       in discontinued
       operations...............       -           -            -            -            -      126,272          -        126,272
    Translation adjustment......       -           -            -            -            -           -       10,783        10,783
                                    -----   ---------   ----------    ---------    ---------   ---------     -------    ----------
Balance as of June 30, 2006.....   $1,455  $3,748,774  $(1,040,775)  $       -    $  424,186  $ (288,499)   $ 69,786   $ 2,914,927
                                    =====   =========   ==========    =========    =========   =========     =======    ==========



         The financial information included herein has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        7





                        PIONEER NATURAL RESOURCES COMPANY

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (Unaudited)


                                                         Three months ended          Six months ended
                                                               June 30,                  June 30,
                                                       ----------------------    --------------------------
                                                          2006         2005          2006           2005
                                                       ---------    ---------    -----------    -----------
                                                                                    
Cash flows from operating activities:
  Net income.......................................... $  88,039    $ 185,559    $   631,246    $   270,216
  Adjustments to reconcile net income to net
   cash provided by operating activities:
    Depletion, depreciation and amortization..........    87,984       65,999        170,390        139,307
    Impairment of long-lived assets...................       -            471            -              623
    Exploration expenses, including dry holes.........    17,354       12,286        111,936         28,962
    Deferred income taxes.............................    50,223       41,030         67,184         56,376
    Loss (gain) loss on disposition of assets, net....     3,403         (109)         3,476         (2,250)
    Loss on extinguishment of debt....................     8,076        7,342          8,076          7,342
    Accretion of discount on asset retirement
      obligations.....................................     1,154        1,043          2,302          2,089
    Discontinued operations...........................    (1,002)      61,019       (540,655)       184,072
    Interest expense..................................     2,118          865          5,165          1,062
    Commodity hedge related activity..................    (6,061)      (7,666)        (5,553)       (10,727)
    Stock-based compensation..........................    10,824        8,018         18,310         13,170
    Amortization of deferred revenue..................   (47,886)     (20,449)       (95,835)       (32,074)
    Other noncash items...............................     5,810        1,553          9,524          5,699
  Changes in operating assets and liabilities, net
   of effects from acquisition:
    Accounts receivable, net..........................    37,050      (42,269)       163,165        (54,302)
    Inventories.......................................   (18,994)     (11,388)       (39,125)       (12,703)
    Prepaid expenses..................................    14,228        3,359          1,964          5,808
    Other current assets, net.........................      (237)        (331)         9,192           (529)
    Accounts payable..................................   (19,993)      (8,029)      (113,641)         9,564
    Interest payable..................................     8,826       11,895        (10,274)        (4,364)
    Income taxes payable..............................   (78,236)       9,144         55,815         11,919
    Other current liabilities.........................    (4,438)      (9,425)         8,927         (5,689)
                                                        --------     --------     ----------     ----------
      Net cash provided by operating activities.......   158,242      309,917        461,589        613,571
                                                        --------     --------     ----------     ----------
Cash flows from investing activities:
  Payments for acquisition, net of cash acquired......       -            -              -             (965)
  Proceeds from disposition of assets.................   679,371      520,502      1,642,562      1,120,598
  Additions to oil and gas properties.................  (309,544)    (245,743)      (644,432)      (440,683)
  Additions to other assets and property, net.........   (26,291)      (8,660)       (32,839)       (19,722)
                                                        --------     --------     ----------     ----------
      Net cash provided by investing activities.......   343,536      266,099        965,291        659,228
                                                        --------     --------     ----------     ----------
Cash flows from financing activities:
  Borrowings under long-term debt.....................   534,219      220,699        898,490        376,412
  Principal payments on long-term debt................  (438,571)    (664,969)    (1,702,842)    (1,373,682)
  Payment of other liabilities........................      (106)      (5,673)          (630)       (13,975)
  Exercise of long-term incentive plan stock options..     2,744        2,358          4,666         27,434
  Purchase of treasury stock..........................  (170,464)     (74,248)      (172,445)      (226,224)
  Payment of financing fees...........................    (2,169)         -           (2,169)           -
  Dividends paid......................................   (15,510)     (14,332)       (15,510)       (14,332)
                                                        --------     --------     ----------     ----------
      Net cash used in financing activities...........   (89,857)    (536,165)      (990,440)    (1,224,367)
                                                        --------     --------     ----------     ----------
Net increase in cash and cash equivalents.............   411,921       39,851        436,440         48,432
Effect of exchange rate changes on cash and
  cash equivalents....................................     2,139        2,561          1,800          2,762
Cash and cash equivalents, beginning of period........    42,982       16,039         18,802          7,257
                                                        --------     --------     ----------     ----------
Cash and cash equivalents, end of period.............. $ 457,042    $  58,451    $   457,042    $    58,451
                                                        ========     ========     ==========     ==========


         The financial information included herein has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        8





                        PIONEER NATURAL RESOURCES COMPANY

                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
                                 (in thousands)
                                   (Unaudited)






                                                         Three months ended         Six months ended
                                                               June 30,                June 30,
                                                       ----------------------    ----------------------
                                                          2006         2005         2006         2005
                                                       ---------    ---------    ---------    ---------


                                                                                  
Net income...........................................  $  88,039    $ 185,559    $ 631,246    $ 270,216
                                                        --------     --------     --------     --------
Other comprehensive income (loss):
  Deferred hedging activity, net of tax:
    Net deferred hedge gains (losses)................     (1,806)     (18,089)      36,948     (342,800)
    Net hedge losses included in continuing
      operations.....................................     15,185       28,807       54,917       58,157
    Net hedge losses included in discontinued
      operations.....................................         -        21,169      126,272       35,756
  Translation adjustment.............................     13,018       (3,236)      10,783       (4,859)
                                                        --------     --------     --------     --------
      Other comprehensive income (loss)..............     26,397       28,651      228,920     (253,746)
                                                        --------     --------     --------     --------
Comprehensive income.................................  $ 114,436    $ 214,210    $ 860,166    $  16,470
                                                        ========     ========     ========     ========






         The financial information included herein has been prepared by
           management without audit by independent public accountants.

              The accompanying notes are an integral part of these
                       consolidated financial statements.

                                        9




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)

NOTE A.     Organization and Nature of Operations

     Pioneer is a Delaware  corporation  whose common stock is listed and traded
on the New York Stock Exchange.  The Company is a large  independent oil and gas
exploration and production company with operations in the United States, Canada,
Equatorial Guinea, Nigeria, South Africa and Tunisia.

NOTE B.     Basis of Presentation

     Presentation.  In the opinion of  management,  the  unaudited  consolidated
financial  statements  of the  Company as of June 30, 2006 and for the three and
six months ended June 30, 2006 and 2005 include all  adjustments  and  accruals,
consisting only of normal recurring accrual adjustments, which are necessary for
a fair  presentation  of the  results  for the interim  periods.  These  interim
results are not necessarily indicative of results for a full year. To conform to
current  period   presentations,   the  Company   reclassified  the  results  of
discontinued  operations, as  disclosed  in Note N, and $22.6  million and $53.9
million  of cash used for  geological  expenses  during  the three and six month
periods  ended  June  30,  2005,  respectively,  from  investing  activities  to
operating activities in the accompanying Consolidated Statements of Cash Flows.

     Certain information and footnote disclosures normally included in financial
statements prepared in accordance with generally accepted accounting  principles
in the United States  ("GAAP") have been  condensed or omitted in this Form 10-Q
pursuant to the rules and regulations of the SEC. These  consolidated  financial
statements  should  be  read  in  connection  with  the  consolidated  financial
statements  and notes thereto  included in the  Company's  Annual Report on Form
10-K for the year ended December 31, 2005.

     Discontinued  operations.  During  2005  and  2006,  the  Company  sold its
interests in the following oil and gas assets:


       Country               Description of Assets              Date Divested
       -------               ---------------------              -------------
                                                       
       Canada                Martin Creek, Conroy Black         May 2005
                             and Lookout Butte fields

       United States         Two Gulf of Mexico                 August 2005
                             shelf fields

       United States         Deepwater Gulf of Mexico           March 2006
                             fields

       Argentina             Argentine assets                   April 2006


     In accordance with Statement of Financial Accounting Standards ("SFAS") No.
144,  "Accounting  for the  Impairment or Disposal of Long-Lived  Assets" ("SFAS
144"),  the  Company  has  reflected  the  results  of  operations  of the above
divestitures  as  discontinued  operations,   rather  than  as  a  component  of
continuing   operations.   See  Note  N  for  additional  information  regarding
discontinued operations.

     Inventories. Inventories were comprised of $114.8 million and $77.3 million
of materials and supplies and $1.1 million and $2.4 million of commodities as of
June 30, 2006 and December 31, 2005,  respectively.  The Company's materials and
supplies  inventory  is  primarily  comprised  of oil and gas drilling or repair
items  such as  tubing,  casing,  chemicals,  operating  supplies  and  ordinary
maintenance  materials  and parts.  The  materials  and  supplies  inventory  is
primarily  acquired for use in future drilling  operations or repair  operations
and is carried at the lower of cost or market,  on a first-in,  first-out basis.
Commodities  inventory is carried at the lower of average  cost or market,  on a
first-in,  first- out basis.  As of June 30, 2006 and  December  31,  2005,  the
Company's  materials  and  supplies  inventory  was net of $5.5  million and $.2
million, respectively, of valuation reserve allowances.

                                       10




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2006
                                   (Unaudited)


     Goodwill.  In accordance with SFAS No. 142,  "Goodwill and Other Intangible
Assets",  goodwill is not amortized to earnings,  but is assessed for impairment
whenever events or circumstances  indicate that impairment of the carrying value
of goodwill is likely, but no less often than annually. If the carrying value of
goodwill is determined to be impaired, it is reduced for the impaired value with
a  corresponding  charge  to  pretax  earnings  in the  period  in  which  it is
determined  to be  impaired.  During  the third  quarter  of 2005,  the  Company
performed its annual assessment of goodwill impairment and determined that there
was no impairment.

     In accordance with GAAP,  certain  qualifying  income tax benefits  derived
from  stock-based  compensation are recorded as reductions in the carrying value
of goodwill.

     Stock-based compensation.  On January 1, 2006, the Company adopted SFAS No.
123  (revised  2004),  "Share-  Based  Payment"  ("SFAS  123(R)") to account for
stock-based  compensation.  Among other items, SFAS 123(R) eliminates the use of
the Accounting  Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees" ("APB  25"),  intrinsic  value  method  of  accounting  and  requires
companies to recognize  the cost of employee  services  received in exchange for
awards of equity  instruments based on the grant date fair value of those awards
in the financial statements. The Company elected to use the modified prospective
method for adoption,  which requires compensation expense to be recorded for all
unvested  stock  options and other  equity-based  compensation  beginning in the
first  quarter of adoption.  For all unvested  stock options  outstanding  as of
January 1, 2006, the previously measured but unrecognized  compensation expense,
based  on the  fair  value  on the  date of  grant,  will be  recognized  in the
Company's   financial   statements  over  the  remaining  vesting  period.   For
equity-based  compensation  awards granted or modified  subsequent to January 1,
2006,  compensation expense,  based on the fair value on the date of grant, will
be recognized in the Company's financial statements over the vesting period. The
Company utilizes the Black-Scholes option pricing model to measure fair value of
stock  options  and  utilizes  the stock price on the date of grant for the fair
value of  restricted  stock  awards.  Prior to the adoption of SFAS 123(R),  the
Company followed the intrinsic value method in accordance with APB 25 to account
for stock options. Prior period financial statements have not been restated. The
modified  prospective  method  requires the Company to estimate  forfeitures  in
calculating  the expense  related to stock-based  compensation as opposed to its
prior policy of recognizing  forfeitures as they occurred.  The Company recorded
no cumulative effect as a result of adopting SFAS 123(R).

     Additionally,  under the provisions of SFAS 123(R),  deferred  compensation
recorded  under APB 25  related  to  equity-based  awards  should be  eliminated
against the  appropriate  equity  accounts.  As a result,  upon adoption of SFAS
123(R), the Company eliminated $45.8 million of deferred  compensation cost from
stockholders'  equity and reduced by a like amount additional paid-in capital in
the accompanying Consolidated Balance Sheet.

     For the three and six months  ended June 30,  2006,  the  Company  recorded
$10.8 million and $18.3 million, respectively, of stock-based compensation costs
for all  plans.  The  impact to net  income of  adopting  SFAS  123(R)  was $531
thousand  and $1.2  million for the three and six month  periods  ended June 30,
2006,  respectively,  or less than $.01 per diluted share. For the three and six
month  periods  ended June 30, 2006,  the  adoption  impact is comprised of $314
thousand and $806 thousand,  respectively,  of compensation  expense  associated
with unvested stock options and $217 thousand and $359  thousand,  respectively,
of compensation  expense  associated with the Company's  Employee Stock Purchase
Plan, which is a compensatory plan under the provisions of SFAS 123(R).

     Pursuant to the provisions of SFAS 123(R),  the Company's issued shares, as
reflected in the accompanying  Consolidated Balance Sheets, at June 30, 2006 and
December  31,  2005  do not  include  2,036,474  shares  and  1,756,180  shares,
respectively, related to unvested restricted stock awards. During the six months
ended June 30, 2006,  the Company  issued  663,974  shares of  restricted  stock
awards.



                                       11




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     As of June  30,  2006,  there  is  approximately  $53.3  million  of  total
unrecognized  compensation expense related to unvested share-based  compensation
plans. This compensation will be recognized over the remaining vesting period of
less than three years.

     The following table  illustrates the pro forma effect on net income and net
income  per share as if the  Company  had  applied  the fair  value  recognition
provisions of SFAS No. 123(R) to stock-based  compensation  during the three and
six months ended June 30, 2005:


                                                                 Three months      Six months
                                                                     ended            ended
                                                                 June 30, 2005    June 30, 2005
                                                                 -------------    -------------
                                                             (in thousands, except per share data)
                                                                             
     Net income, as reported ................................      $ 185,559       $ 270,216
     Plus: Stock-based compensation expense included
       in net income for all awards, net of tax (a)..........          5,092           8,363
     Deduct: Stock-based compensation expense determined
       under fair value based method for all awards,
       net of tax (a)........................................         (5,841)        (10,083)
                                                                    --------        --------
     Pro forma net income....................................      $ 184,810       $ 268,496
                                                                    ========        ========
     Net income per share:
       Basic - as reported...................................      $    1.32       $    1.90
                                                                    ========        ========
       Basic - pro forma.....................................      $    1.31       $    1.89
                                                                    ========        ========
       Diluted - as reported.................................      $    1.28       $    1.86
                                                                    ========        ========
       Diluted - pro forma...................................      $    1.28       $    1.85
                                                                    ========        ========
<FN>
- -----------
(a)  For the three and six months ended June 30, 2005, stock-based  compensation
     expense  included in net income is net of tax  benefits of $2.9 million and
     $4.8 million,  respectively.  Similarly,  stock-based  compensation expense
     determined  under the fair value based  method for the three and six months
     ended  June  30,  2005 is net of tax  benefits  of $3.4  million  and  $5.8
     million,  respectively. See Note D for additional information regarding the
     Company's income taxes.
</FN>


NOTE C.     Exploratory Well Costs

     The Company  capitalizes  exploratory  well costs until a determination  is
made that the well has either found proved reserves or that it is impaired.  The
capitalized  exploratory  well costs are  presented in proved  properties in the
Consolidated  Balance  Sheets.  If the  exploratory  well  is  determined  to be
impaired, the well costs are charged to expense.

     The following  table reflects the Company's  capitalized  exploratory  well
activity during the three and six months ended June 30, 2006:


                                                                 Three months      Six months
                                                                     ended            ended
                                                                 June 30, 2006    June 30, 2006
                                                                 -------------    -------------
                                                                        (in thousands)
                                                                             
     Beginning capitalized exploratory well costs ...........      $ 157,451        $ 198,291
     Additions to exploratory well costs pending the
       determination of proved reserves......................         89,180          189,714
     Reclassifications due to determination of
       proved reserves.......................................        (29,513)         (83,471)
     Disposition of wells....................................         (2,527)         (53,198)
     Exploratory well costs charged to expense...............        (35,231)         (71,976)
                                                                    --------         --------
     Ending capitalized exploratory well costs ..............      $ 179,360        $ 179,360
                                                                    ========         ========


                                       12




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)



     The following  table provides an aging as of June 30, 2006 and December 31,
2005 of  capitalized  exploratory  well costs based on the date the drilling was
completed  and the  number of wells for which  exploratory  well costs have been
capitalized  for a period  greater than one year since the date the drilling was
completed:


                                                                       June 30,     December 31,
                                                                         2006           2005
                                                                       ---------    ------------
                                                                  (in thousands, except well counts)
                                                                               
     Capitalized exploratory well costs that have been
       capitalized for a period of one year or less..............      $ 110,200     $  84,042
     Capitalized exploratory well costs that have been
       capitalized for a period greater than one year............         69,160       114,249
                                                                        --------      --------
                                                                       $ 179,360     $ 198,291
                                                                        ========      ========
     Number of wells with exploratory well costs that have
       been capitalized for a period greater than one year.......              9            14
                                                                        ========      ========


     The following table provides the capitalized costs of exploration  projects
that have been suspended for more than one year as of June 30, 2006 and December
31, 2005:


                                                                       June 30,     December 31,
                                                                         2006           2005
                                                                       ---------    ------------
                                                                             (in thousands)
                                                                               
     United States:
       Ozona Deep................................................      $     -        $  19,423
       Thunder Hawk..............................................            -           25,769
       Oooguruk..................................................         52,205         52,205

     Canada - other..............................................            751            805
     South Africa................................................          7,227          7,227
     Tunisia.....................................................          8,977          8,820
                                                                        --------       --------
             Total...............................................      $  69,160      $ 114,249
                                                                        ========       ========


     The  following   discussion  describes  the  history  and  status  of  each
significant suspended exploratory project:

     Ozona Deep and  Thunder  Hawk.  During  March 2006,  the  Company  sold its
interests in the Ozona Deep and Thunder Hawk properties as part of the Company's
deepwater  Gulf of Mexico  divestiture.  See Note N for  additional  information
regarding the Company's  divestiture of its deepwater Gulf of Mexico oil and gas
assets.

     Oooguruk. During 2003, the Company's Alaskan Oooguruk discovery wells found
quantities of oil believed to be commercial.  In 2003, the Company began farm-in
discussions with the owner of undeveloped  discoveries in adjacent acreage given
its  proximity and the potential  cost benefits of a larger scale  project.  The
farm-in was completed during 2004. Along with completing the farm-in  agreement,
Pioneer  obtained  access to  exploration  well and seismic  data to improve the
Company's  understanding of the potential of the discoveries,  without having to
drill  additional  wells.  In late 2004,  the  Company  completed  an  extensive
technical and economic evaluation of the resource potential within this area and
authorized a front-end  engineering  design  study  ("FEED  study") for the area
which was completed.

     During the first quarter of 2006, the Company sanctioned the development of
the discovery and obtained the necessary regulatory approvals. The Company began
operations  to install an  offshore  gravel  drilling  and  production  site and
completed gravel hauling activities during the 2006 winter construction  season.
A subsea flowline and facilities will be installed during 2007 to carry produced
liquids to  existing onshore  processing  facilities at the  Kuparuk River Unit.

                                       13




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


Pioneer  plans  to drill  approximately  40  horizontal  wells  to  develop  the
discovery.  Depending  on  weather  conditions  and  facilities  completion  and
accessibility,  drilling  could begin as early as the fall of 2007.  The Company
estimates first production to occur in 2008.

     South Africa.  During 2001, the Company drilled two South African discovery
wells that found  quantities of gas and  condensate  believed to be  commercial.
During 2002 to 2004,  the Company  actively  reviewed  the gas supply and demand
fundamentals  in  South  Africa  and had  discussions  with  the  operator  of a
gas-to-liquids  ("GTL") plant located in the area to purchase the condensate and
gas.  During  2004,  a FEED study was  authorized  for the gas  development  and
infrastructure  design.  The FEED study was completed in early 2005 and based on
that study, the GTL plant operator  initiated purchase orders for long-lead time
infrastructure  components.  In  December  2005,  the  Company  entered  into  a
commercial  agreement  with its  partner in the South  Coast gas project for the
sale of gas and condensate. The project will include subsea tie-back of gas from
the Sable field and five to six  additional  gas  accumulations  to the existing
production  facilities  on the F-A  platform  for  transportation  via  existing
pipelines  to the  GTL  plant.  Development  drilling  related  to  the  project
commenced in the first  quarter of 2006.  Production is expected to begin during
the second half of 2007.

     As of December 31, 2005, the remaining  costs  associated with this project
relate  to the  Boomslang  discovery,  which  was not  included  in the  initial
development  phase  of  this  project.  Boomslang  is an  oil  discovery  with a
significant gas cap. Continued studies of the  commercialization  of the project
are  ongoing.  One of the  objectives  of  these  studies  is to  determine  the
commercialization  of the  discovery as an oil project,  gas project or both. If
commercialized  as an oil discovery,  earliest  production  would be 2009 and if
commercialized as a gas discovery,  earliest  production would be 2012.  Partner
meetings  are  scheduled  for the  latter  part of 2006 to further  discuss  the
commercialization of the Boomslang discovery.

     Tunisia.  During  2003,  the  Company  drilled an  exploration  well on its
Anaguid Block in Tunisia which found  quantities of gas and condensate  believed
to be commercial.  During 2004, the well was scheduled and approved for extended
production tests.  However, the project operator delayed the extended production
tests  due to issues  unrelated  to the  Company  or the  project.  In the third
quarter of 2005, the project operator, along with the Company, drilled an offset
appraisal  well to the  exploration  well.  The appraisal  well  offsetting  the
exploration  well  encountered  gas and  condensate in a similar  horizon to the
initial well. The Company is currently reviewing data from the appraisal well to
determine whether development of the area is economical.

NOTE D.     Income Taxes

     The Company  accounts for income taxes in accordance with the provisions of
SFAS No. 109, "Accounting for Income Taxes" ("SFAS 109"). SFAS 109 requires that
the Company  continually assess both positive and negative evidence to determine
whether it is more  likely  than not that  deferred  tax assets can be  realized
prior  to  their  expiration.  Pioneer  monitors  Company-specific,  oil and gas
industry and worldwide  economic  factors and assesses the  likelihood  that the
Company's  net  operating  loss  carryforwards  ("NOLs") and other  deferred tax
attributes in the United States and state,  local and foreign tax  jurisdictions
will be utilized  prior to their  expiration.  During the first quarter of 2006,
the Company  utilized all of its available  United States NOLs, other than those
subject to limitations,  primarily  related to the sale of the deepwater Gulf of
Mexico assets;  accordingly,  this has accelerated the Company's payment of cash
taxes.  As of June 30, 2006 and  December  31,  2005,  the  Company's  valuation
allowances  (relating primarily to foreign tax jurisdictions) were $96.6 million
and $95.8 million, respectively.



                                       14




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     Income tax provision.  The Company's income tax provisions  attributable to
income from continuing  operations  consisted of the following for the three and
six months ended June 30, 2006 and 2005:



                                               Three months ended          Six months ended
                                                     June 30,                  June 30,
                                             ----------------------     ----------------------
                                                2006         2005          2006         2005
                                             ---------    ---------     ---------    ---------
                                                              (in thousands)
                                                                         
     Current:
       U.S. federal.......................   $ (10,460)   $   4,657     $ (12,973)   $   4,657
       U.S. state and local...............          12          131             3          131
       Foreign............................      10,432        8,067        16,710       14,632
                                              --------     --------      --------     --------
                                                   (16)      12,855         3,740       19,420
                                              --------     --------      --------     --------
     Deferred:
       U.S. federal.......................      38,703       38,072        48,640       52,959
       U.S. state and local...............      14,297        1,653        14,099        1,658
       Foreign............................      (2,777)       1,305         4,445        1,759
                                              --------     --------      --------     --------
                                                50,223       41,030        67,184       56,376
                                              --------     --------      --------     --------
                                             $  50,207    $  53,885     $  70,924    $  75,796
                                              ========     ========      ========     ========


     The Company's  effective tax rate on continuing  operations of 43.2 percent
and  52.2  percent  during  the  three  and six  months  ended  June  30,  2006,
respectively,  differs  from  the  combined  United  States  federal  and  state
statutory rate of approximately 36.5 percent primarily due to:

       o    foreign tax rates,
       o    adjustments to the deferred tax liability for changes in enacted tax
            laws and rates, as discussed below,
       o    statutes in  foreign  jurisdictions  that  differ from  those in the
            United States and
       o    expenses for unsuccessful well costs and associated acreage costs in
            foreign  locations  where the  Company  does  not  expect to receive
            income tax benefits;  during the three and  six month periods  ended
            June 30,  2006,  this  primarily  related  to  Nigerian  exploration
            expenses  of   approximately  $1.8   million  and   $39.2   million,
            respectively.

     On May 18, 2006,  the State of Texas enacted  legislation  that changed the
existing Texas  franchise tax from a tax based on net income or taxable  capital
to an income tax based on a defined  calculation  of gross  margin  (the  "Texas
margin tax").  Also, during the second quarter of 2006, the Canadian federal and
provincial  governments  enacted tax rate reductions that will be phased-in over
several  years.  SFAS 109  requires  that  deferred  tax balances be adjusted to
reflect tax rate  changes  during the periods in which the tax rate  changes are
enacted.  The  adjustment  due to the  enactment of the Texas margin tax and the
Canadian tax rate changes  resulted in a $12.9 million United States tax expense
and a $9.6 million  Canadian tax benefit  during the three and six month periods
ended June 30, 2006.

     Included in the Company's  income tax provision from continuing  operations
for the three and six months  ended  June 30,  2005 is the  reversal  of a $27.3
million  tax  benefit  recorded  principally  in the third  quarter of 2004 as a
result  of the  cancellation  of the  development  of the  Olowi  block  and the
Company's decision to exit Gabon.  Reversal of the tax benefit was the result of
signing an agreement in June 2005 to sell the Company's shares in the subsidiary
that owns the interest in the Olowi block to an unaffiliated  buyer,  which made
it more  likely  than not that the  Company  would not  realize  the  originally
recorded tax benefit.  The Company completed the sale of the Gabonese subsidiary
during 2005.


                                       15




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     Discontinued  operations.  The Company's income tax provisions attributable
to income from discontinued  operations consisted of the following for the three
and six months ended June 30, 2006 and 2005:


                                                Three months ended        Six months ended
                                                      June 30,                 June 30,
                                               --------------------     --------------------
                                                 2006        2005         2006        2005
                                               --------    --------     --------    --------
                                                              (in thousands)
                                                                           
     Current:
       U.S. federal.........................   $  7,874    $  2,751     $148,599    $  2,751
       U.S. state and local.................       (290)        118        1,850         118
       Foreign..............................        961       2,694        2,126       5,020
                                                -------     -------      -------     -------
                                                  8,545       5,563      152,575       7,889
                                                -------     -------      -------     -------
     Deferred:
       U.S. federal.........................     (1,374)     63,108      140,902      89,754
       U.S. state and local.................        104       2,706        6,319       3,847
       Foreign..............................        881      36,720         (123)     36,559
                                                -------     -------      -------     -------
                                                   (389)    102,534      147,098     130,160
                                                -------     -------      -------     -------
                                               $  8,156    $108,097     $299,673    $138,049
                                                =======     =======      =======     =======


     The Company's  effective tax rate associated with  discontinued  operations
during the three and six months  ended June 30,  2006 was 26.9  percent and 34.6
percent, respectively.

NOTE E.     Long-term Debt

     Lines of credit.  The Company has an Amended and Restated 5-Year  Revolving
Credit Agreement (the "Credit  Agreement") that matures in September 2010 unless
extended in accordance with the terms of the Credit Agreement.  The terms of the
Credit Agreement provide for initial aggregate loan commitments of $1.5 billion,
which may be  increased  to a maximum  aggregate  amount of $1.8  billion if the
lenders  increase their loan commitments or if loan commitments of new financial
institutions are added to the Credit Agreement. As of June 30, 2006, the Company
had no outstanding  borrowings  under the Credit  Agreement.  If the Company had
outstanding  borrowings,  the  Company's  annual  interest rate incurred on such
borrowings would approximate LIBOR (5.3 percent per annum at June 30, 2006) plus
a current  additional  margin to LIBOR  (.875  percent  per annum as of June 30,
2006).

     The Credit Agreement  contains certain financial  covenants,  which include
the (i) maintenance of a ratio of the Company's  earnings before gain or loss on
the  disposition  of  assets,  interest  expense,  income  taxes,  depreciation,
depletion  and  amortization  ("DD&A")  expense,  exploration  and  abandonments
expense and other noncash charges and expenses to consolidated  interest expense
of at least  3.5 to 1.0;  (ii)  maintenance  of a ratio  of  total  debt to book
capitalization less intangible assets,  accumulated other  comprehensive  income
and certain  noncash asset  impairments  not to exceed .60 to 1.0; and (iii) the
maintenance of an annual ratio of the net present value of the Company's oil and
gas  properties to total debt of at least 1.50 to 1.0 until March 2007, and 1.75
to 1.0 thereafter. The lenders may declare any outstanding obligations under the
Credit Agreement immediately due and payable upon the occurrence, and during the
continuance of, an event of default,  which includes a defined change in control
of the Company.

     As of June 30, 2006, the Company had $124.6  million of undrawn  letters of
credit,  of which  $119.6  million  were  undrawn  commitments  under the Credit
Agreement  leaving the Company  with $1.4 billion of unused  borrowing  capacity
under the Credit Agreement.  The letters of credit  outstanding under the Credit
Agreement are subject to a per annum fee,  based on a grid of the Company's debt
rating,  currently representing the Company's LIBOR margin (.875 percent at June
30, 2006) plus .125 percent.

     As of June 30,  2006,  the Company was in  compliance  with all of its debt
covenants.


                                       16




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     Senior notes.  During May 2006,  the Company  issued $450 million of 6.875%
senior  notes  due 2018 (the  "6.875%  Notes")  and  received  proceeds,  net of
issuance  discount and underwriting  costs, of $447.4 million.  The Company used
the net  proceeds  from the issuance of the 6.875%  Notes to  repurchase  $346.2
million of its  outstanding  $350  million of 6.50%  senior  notes due 2008 (the
"6.50% Notes") and for general corporate purposes. The Company recorded a charge
of $8.1  million  in the  second  quarter  of 2006  associated  with  the  early
extinguishment of the 6.50% Notes.

     Senior  convertible  notes.  In  connection  with the  Evergreen  merger in
September  2004, the Company  assumed $100 million of 4 3/4% senior  convertible
notes due 2021  (the  "Convertible  Notes").  The  Convertible  Notes are due on
December 15, 2021,  but are  redeemable  at either the  Company's  option or the
holder's option on other specified  dates. As a result of the Evergreen  merger,
the Convertible Notes are convertible at any time by the holders as discussed in
the following paragraph. Holders may also require the Company to purchase all or
part of the  Convertible  Notes on  December  20,  2006,  December  15,  2011 or
December 15, 2016 at a purchase price of 100 percent of the principal  amount of
the  Convertible  Notes plus accrued and unpaid interest  (including  contingent
interest).  On December 20, 2006, the Company may redeem the Convertible  Notes,
in whole or in part, in cash, for shares of common stock,  or in any combination
of cash and common stock. On December 15, 2011 or December 15, 2016, the Company
must pay the repurchase price in cash. The Company currently intends to exercise
its rights under the indenture and redeem the Convertible  Notes on December 20,
2006, if the Convertible Notes have not been converted by the holders.

     Each $25.00 principal  balance  outstanding  under the Convertible Notes is
convertible  into .58175  shares of the  Company's  common stock plus $19.98 per
share (as an example,  each $1,000 of Convertible Notes principal would exchange
for 23.27 shares of the Company's  common stock plus $799 of cash).  The portion
of the  Convertible  Notes  exchangeable  into  the  Company's  common  stock is
included in the computation of the Company's average diluted shares outstanding.

     During  June 2006,  holders of $2  million of the  outstanding  Convertible
Notes exercised their conversion rights.  Associated therewith, the Company paid
$1.6 million in cash,  issued 46,540 shares of common stock and recognized a net
increase to  stockholders'  equity of $.4  million.  See Note O for  information
regarding conversions subsequent to June 30, 2006.

     Rating  agencies.   In  January  2006,  Moody's  Investor  Services,   Inc.
("Moody's")  downgraded  the  Company's  debt  ratings  from  Baa3 to  Ba1.  The
downgrade  triggered  increases  in the pricing  grid for  borrowings  under the
Credit Agreement.

NOTE F.     Derivative Financial Instruments

     Fair value  hedges.  The  Company  monitors  the debt  capital  markets and
interest  rate  trends to  identify  opportunities  to enter into and  terminate
interest  rate  swap  contracts  with the  objective  of  reducing  its costs of
capital.  As of June 30, 2006 and December 31, 2005, the Company was not a party
to any open fair value hedges.

     As of June 30, 2006, the carrying value of the Company's  long-term debt in
the accompanying  Consolidated  Balance Sheets included a $3.5 million reduction
attributable  to net deferred hedge losses on terminated  fair value hedges that
are being amortized as net increases to interest expense over the original terms
of the  terminated  agreements.  During the three and six months  ended June 30,
2006,  the  Company's  amortization  of net deferred  hedge gains on  terminated
interest  rate swaps  reduced the  Company's  reported  interest  expense by $13
thousand and $127 thousand,  respectively,  as compared to $1.1 million and $3.3
million during the same respective periods in 2005.



                                       17




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     The  following  table  sets  forth,  as of June  30,  2006,  the  scheduled
amortization  of net deferred  hedge losses on  terminated  interest rate hedges
(including  terminated  fair value and cash flow hedges) that will be recognized
as increases to the Company's future interest expense:



                                        Six months
                                          ending             Year ending December 31,
                                       December 31,   -------------------------------------
                                           2006         2007      2008      2009      2010    Thereafter
                                       ------------   -------   -------   -------   -------   ----------
                                                                  (in thousands)

                                                                             
    Net deferred hedge losses.......    $   (105)     $  (325)  $  (371)  $  (416)  $  (466)   $ (3,530)
                                         =======       ======    ======    ======    ======     =======


     Cash flow hedges.  The Company utilizes commodity swap and collar contracts
to (i) reduce the effect of price  volatility  on the  commodities  the  Company
produces and sells,  (ii) support the  Company's  annual  capital  budgeting and
expenditure  plans and (iii) reduce commodity price risk associated with certain
capital  projects.  As of June 30, 2006,  virtually  all of the  Company's  open
commodity  hedges  are  designated  as  hedges of  Canadian  and  United  States
forecasted  sales. The Company also, from time to time,  utilizes  interest rate
contracts  to reduce the effect of interest  rate  volatility  on the  Company's
indebtedness  and forward currency  exchange  agreements to reduce the effect of
U.S. dollar to Canadian dollar exchange rate volatility.

     Oil prices.  All material physical sales contracts  governing the Company's
oil  production  have been tied  directly or  indirectly  to NYMEX  prices.  The
following  table sets forth the  volumes  hedged in Bbls under  outstanding  oil
hedge  contracts  and the  weighted  average  NYMEX  prices  per  Bbl for  those
contracts as of June 30, 2006:



                                               First          Second           Third          Fourth         Outstanding
                                              Quarter         Quarter         Quarter         Quarter          Average
                                           -------------   -------------   -------------   --------------   --------------
                                                                                             
Average daily oil production hedged:
   2006 - Swap Contracts
     Volume (Bbl)........................                                          5,000            5,000           5,000
     Price per Bbl.......................                                  $       37.20   $        37.20   $       37.20

   2006 - Collar Contracts
     Volume (Bbl)........................                                          6,500            6,500           6,500
     Price per Bbl.......................                                  $41.92-$66.41   $ 41.92-$66.41   $41.92-$66.41

   2007 - Swap Contracts
     Volume (Bbl)........................         10,000          10,000          10,000           10,000          10,000
     Price per Bbl.......................  $       30.96   $       30.96   $       30.96   $        30.96   $       30.96

   2007 - Collar Contracts
     Volume (Bbl)........................          2,000           2,000           2,000            2,000           2,000
     Price per Bbl.......................  $50.00-$89.50   $50.00-$89.50   $50.00-$89.50   $ 50.00-$89.50   $50.00-$89.50

   2008 - Swap Contracts
     Volume (Bbl)........................         10,000          10,000          10,000           10,000          10,000
     Price per Bbl.......................  $       30.62   $       30.62   $       30.62   $        30.62   $       30.62




                                       18




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     The Company reports average oil prices per Bbl including the effects of oil
quality  adjustments,  amortization of deferred  volumetric  production  payment
("VPP") revenue and the net effect of oil hedges. The following table sets forth
(i)  the  Company's  oil  prices  from  continuing  operations,   both  reported
(including  hedge results and amortization of deferred VPP revenue) and realized
(excluding  hedge  results and  amortization  of  deferred  VPP  revenue),  (ii)
amortization of deferred VPP revenue to oil revenue from  continuing  operations
and (iii) the net effect of  settlements of oil price hedges on oil revenue from
continuing operations for the three and six months ended June 30, 2006 and 2005:



                                                        Three months ended        Six months ended
                                                              June 30,                 June 30,
                                                       --------------------     --------------------
                                                         2006        2005         2006        2005
                                                       --------    --------     --------    --------

                                                                                
     Average price reported per Bbl.................   $  69.71    $  37.60     $  64.86    $  36.01
     Average price realized per Bbl.................   $  67.15    $  51.21     $  63.63    $  47.96
     VPP increase to oil revenue (in millions)......   $   29.1    $    -       $   58.0    $    -
     Reduction to oil revenue from hedging
        activity (in millions) (a)..................   $  (23.4)   $  (37.8)    $  (52.5)   $  (70.5)
<FN>
- ----------
(a)  Excludes  hedge  losses  of  $12.3  million  attributable  to  discontinued
     operations  for the six months  ended June 30,  2006 and $15.0  million and
     $26.6  million  during  the  three  and six  months  ended  June 30,  2005,
     respectively.
</FN>


     Natural gas liquids prices.  During the three and six months ended June 30,
2006 and 2005,  the  Company did not enter into any NGL hedge  contracts.  There
were no outstanding NGL hedge contracts at June 30, 2006.

     Gas prices.  The  Company  employs a policy of hedging a portion of its gas
production based on the index price upon which the gas is actually sold in order
to mitigate the basis risk between  NYMEX  prices and actual  index  prices,  or
based on NYMEX  prices if NYMEX  prices  are  highly  correlated  with the index
price.  The  following  table  sets  forth the  volumes  hedged in MMBtus  under
outstanding gas hedge contracts and the weighted  average index prices per MMBtu
for those contracts as of June 30, 2006:



                                              First         Second          Third         Fourth       Outstanding
                                             Quarter        Quarter        Quarter        Quarter        Average
                                          ------------   ------------   ------------   ------------   ------------
                                                                                       
Average daily gas production hedged (a):
   2006 - Swap Contracts
     Volume (MMBtu)...................                                        73,880         73,984         73,932
     Index price per MMBtu............                                  $       4.31   $       4.31   $       4.31

   2006 - Collar Contracts
     Volume (MMBtu)...................                                        85,000         95,000         90,000
     Index price per MMBtu............                                  $6.56-$14.27   $6.55-$14.49   $6.56-$14.38

   2007 - Swap Contracts
     Volume (MMBtu)...................          59,071         59,146         59,231         59,329         59,195
     Index price per MMBtu............    $       7.07   $       7.06   $       7.06   $       7.06   $       7.06

   2007 - Collar Contracts
     Volume (MMBtu)...................          30,000         30,000         30,000         30,000         30,000
     Index price per MMBtu............    $6.50-$11.02   $6.50-$11.02   $6.50-$11.02   $6.50-$11.02   $6.50-$11.02
<FN>
- -------------
(a)  Subsequent to June 30, 2006 through August 1, 2006, the Company (i) reduced
     its gas  hedge  position  by  terminating  gas  collar  contracts  that are
     included in the table above by 30,000 MMBtu per day of forecasted  2007 gas
     sales at a  weighted  average  ceiling  price  per  MMBtu of  $11.02  and a
     weighted  average floor price per MMBtu of $6.50 and (ii) increased its gas
     hedge position by entering into gas swap contracts for 15,000 MMBtu per day
     of forecasted 2008 gas sales at a weighted average price per MMBtu of $8.62
     (Panhandle Eastern Pipeline Oklahoma (mainline) index price).
</FN>


                                       19




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)



     The Company reports average gas prices per Mcf including the effects of Btu
content,  gas processing,  shrinkage  adjustments,  amortization of deferred VPP
revenue and the net effect of gas hedges. The following table sets forth (i) the
Company's gas prices from continuing operations,  both reported (including hedge
results and amortization of deferred VPP revenue) and realized  (excluding hedge
results and amortization of deferred VPP revenue), (ii) amortization of deferred
VPP revenue to gas revenue from  continuing  operations and (iii) the net effect
of settlements of gas price hedges on gas revenue from continuing operations for
the three and six months ended June 30, 2006 and 2005:



                                                        Three months ended   Six months ended
                                                              June 30,           June 30,
                                                        -----------------   -----------------
                                                          2006      2005      2006      2005
                                                        -------   -------   -------   -------

                                                                          
     Average price reported per Mcf..................   $  6.25   $  6.67   $  6.48   $  6.36
     Average price realized per Mcf..................   $  5.75   $  6.20   $  6.37   $  5.90
     VPP increase to gas revenue (in millions).......   $  18.8   $  20.4   $  37.8   $  32.1
     Reduction to gas revenue from hedging activity
        (in millions) (a)............................   $  (3.3)  $  (8.0)  $ (31.6)  $  (6.4)
<FN>
- --------
(a)  Excludes  hedge  losses  of  $3.4  million   attributable  to  discontinued
     operations  for the six months  ended June 30,  2006 and $17.9  million and
     $27.5  million  during  the  three  and six  months  ended  June 30,  2005,
     respectively.
</FN>


     Interest rate.  During April 2006, the Company entered into costless collar
contracts and  designated  the  contracts as cash flow hedges of the  forecasted
interest  rate risk  associated  with the coupon  rate on the  Company's  6.875%
Notes,  which were issued on May 1, 2006. The Company  terminated these costless
collar  contracts for a gain of $1.3 million,  which was recorded in accumulated
other comprehensive income (loss) - net deferred hedge losses, net of tax ("AOCI
- - Hedging").  The Company did not realize any ineffectiveness in connection with
the  costless  collar  contracts  during the three and six months ended June 30,
2006. See Note E for information regarding the 6.875% Notes.

     Hedge ineffectiveness. During the three and six months ended June 30, 2006,
the  Company   recorded  to  other  expense  from   continuing   operations  net
ineffectiveness  credits of $2.8  million and $11.0  million,  respectively,  as
compared to $4.2 million and $9.3 million of net ineffectiveness  charges during
the same  respective  periods in 2005,  related to the  ineffective  portions of
changes in the fair values of its cash flow hedging  instruments.  These credits
and charges primarily  resulted from changes in correlations and derivative fair
values  associated with commodity  price indexes of financial hedge  derivatives
and the commodity price indexes of the hedged forecasted  production for certain
fields.

     AOCI - Hedging.  As of June 30, 2006 and December 31, 2005,  AOCI - Hedging
represented   net  deferred   losses  of  $288.5  million  and  $506.6  million,
respectively.  The AOCI - Hedging  balance as of June 30, 2006 was  comprised of
$400.2  million of net deferred  losses on the  effective  portions of open cash
flow hedges, $54.2 million of net deferred losses on terminated cash flow hedges
(including  $1.8 million of net deferred losses on terminated cash flow interest
rate hedges) and $165.8  million of associated  net deferred tax  benefits.  The
decrease  in AOCI -  Hedging  during  the six  months  ended  June 30,  2006 was
primarily  attributable to the termination and  reclassification to discontinued
operations of the underlying  balances related to hedges that were designated as
deepwater Gulf of Mexico hedges and the  reclassification  of net deferred hedge
losses to net income as  derivatives  matured by their  terms.  The net deferred
losses  associated  with open cash flow hedges  remain  subject to market  price
fluctuations until the positions are either settled under the terms of the hedge
contracts  or  terminated  prior  to  settlement.  The net  deferred  losses  on
terminated cash flow hedges are fixed.

     During the twelve months ending June 30, 2007,  based on current  estimates
of future commodity prices,  the Company expects to reclassify $168.6 million of
net deferred losses  associated  with open commodity  hedges and $4.8 million of
net deferred  losses on terminated  commodity  hedges from AOCI - Hedging to oil


                                       20




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


and gas  revenues.  The Company also expects to reclassify  approximately  $63.3
million of net deferred  income tax benefits  associated  with commodity  hedges
during the twelve  months ending June 30, 2007 from AOCI - Hedging to income tax
benefit.

     The  following  table  sets  forth,  as of June  30,  2006,  the  scheduled
amortization of net deferred gains (losses) on terminated  commodity hedges that
will be recognized as decreases in the case of losses, and increases in the case
of gains, to the Company's future oil and gas revenues:



                                             First      Second       Third      Fourth
                                            Quarter     Quarter     Quarter     Quarter       Total
                                           --------    ---------    --------    --------    ----------
                                                                 (in thousands)

                                                                          
    2006 net deferred hedge gains.......                            $  3,240    $  2,402    $   5,642
    2007 net deferred hedge losses......   $ (5,642)   $  (4,775)   $ (4,293)   $ (3,319)     (18,029)
    2008 net deferred hedge losses......   $ (8,718)   $  (6,123)   $ (6,008)   $ (6,472)     (27,321)
    2009 net deferred hedge losses......   $ (2,330)   $    (232)   $   (230)   $   (822)      (3,614)
    2010 net deferred hedge losses......   $   (667)   $    (620)   $   (578)   $   (539)      (2,404)
    2011 net deferred hedge losses......   $   (873)   $    (889)   $   (902)   $   (906)      (3,570)
    2012 net deferred hedge losses......   $   (810)   $    (791)   $   (784)   $   (772)      (3,157)
                                                                                             --------
                                                                                            $ (52,453)
                                                                                             ========


NOTE G.     Asset Retirement Obligations

     The Company's asset retirement  obligations  primarily relate to the future
plugging  and  abandonment  of proved  properties  and related  facilities.  The
Company  does not  provide  for a market  risk  premium  associated  with  asset
retirement  obligations  because a reliable  estimate cannot be determined.  The
Company has no assets that are legally restricted for purposes of settling asset
retirement  obligations.  The following  table  summarizes  the Company's  asset
retirement obligation transactions recorded in accordance with the provisions of
SFAS No. 143,  "Accounting  for Asset  Retirement  Obligations"  and SFAS No. 5,
"Accounting  for  Contingencies"  during the three and six months ended June 30,
2006 and 2005:



                                                         Three months ended          Six months ended
                                                               June 30,                   June 30,
                                                       ----------------------     ----------------------
                                                          2006         2005          2006         2005
                                                       ---------    ---------     ---------    ---------
                                                                        (in thousands)
                                                                                   
     Beginning asset retirement obligations..........  $ 156,088    $ 121,937     $ 157,035    $ 120,879
       New wells placed on production and
          changes in estimates (a)...................        720        1,150        42,720        2,595
       Disposition of wells..........................       (372)      (5,238)      (44,042)      (5,238)
       Liabilities settled...........................     (2,802)      (1,855)       (3,870)      (4,255)
       Accretion of discount on continuing operations      1,154        1,043         2,302        2,089
       Accretion of discount on discontinued operations       72        1,059           804        2,153
       Currency translation..........................        723         (343)          634         (470)
                                                        --------     --------      --------     --------
     Ending asset retirement obligations ............  $ 155,583    $ 117,753     $ 155,583    $ 117,753
                                                        ========     ========      ========     ========
<FN>
- -----------
(a)  During  the six months  ended June 30,  2006,  the  Company  recorded a $42
     million increase in the abandonment estimate of the East Cameron facilities
     that were  destroyed  by  Hurricane  Rita in 2005,  which is  reflected  in
     exploration  and  abandonments  expense  in the  accompanying  Consolidated
     Statements of Operations.
</FN>




                                       21




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     The Company records the current and noncurrent portions of asset retirement
obligations  in other current  liabilities  and other  liabilities  and minority
interests,  respectively,  in the accompanying  Consolidated Balance Sheets. The
current  portions of the Company's asset  retirement  obligations  totaled $86.7
million  and  $58.0  million  as  of  June  30,  2006  and  December  31,  2005,
respectively.

NOTE H.     Postretirement Benefit Obligations

     As of June 30, 2006 and December 31, 2005,  the Company had recorded  $18.9
million and $18.6 million,  respectively, of unfunded accumulated postretirement
benefit  obligations,  the current and noncurrent portions of which are included
in other  current  liabilities  and other  liabilities  and minority  interests,
respectively, in the accompanying Consolidated Balance Sheets. These obligations
are  comprised of five plans of which four relate to  predecessor  entities that
the Company acquired.  These plans had no assets as of June 30, 2006 or December
31, 2005.  Other than the Company's  retirement  plan, the participants of these
plans are not current employees of the Company.

     The  following  table   reconciles   changes  in  the  Company's   unfunded
accumulated  postretirement  benefit obligations during the three and six months
ended June 30, 2006 and 2005:



                                                         Three months ended          Six months ended
                                                               June 30,                   June 30,
                                                       ----------------------     ----------------------
                                                          2006         2005          2006         2005
                                                       ---------    ---------     ---------    ---------
                                                                        (in thousands)
                                                                                   
     Beginning accumulated postretirement benefit
       obligations..................................   $  18,754    $  15,654     $  18,576    $  15,534
        Net benefit payments........................        (303)        (443)         (588)        (629)
        Service costs...............................         204           81           408          162
        Accretion of discounts......................         260          225           519          450
                                                        --------     --------      --------     --------
     Ending accumulated postretirement benefit
       obligations..................................   $  18,915    $  15,517     $  18,915    $  15,517
                                                        ========     ========      ========     ========


NOTE I.     Commitments and Contingencies

     Legal actions. The Company is party to the legal actions that are described
below. The Company is also party to other  proceedings and claims  incidental to
its business.  While many of these matters  involve  inherent  uncertainty,  the
Company believes that the amount of the liability,  if any,  ultimately incurred
with  respect to such  other  proceedings  and  claims  will not have a material
adverse effect on the Company's consolidated financial position as a whole or on
its liquidity,  capital  resources or future annual  results of operations.  The
Company will continue to evaluate its litigation matters on a quarter-by-quarter
basis and will  adjust its  litigation  reserves as  appropriate  to reflect its
assessment of the then current status of litigation.

     Alford.  The Company is party to a 1993 class action  lawsuit  filed in the
26th Judicial District Court of Stevens County, Kansas by two classes of royalty
owners,  one for  each  of the  Company's  gathering  systems  connected  to the
Company's Satanta gas plant. The case was relatively inactive for several years.
In early 2000, the plaintiffs  amended their pleadings and the case now contains
two material  claims.  First,  the plaintiffs  assert that they were  improperly
charged expenses  (primarily field  compression),  which plaintiffs allege are a
"cost of  production",  and for which the  plaintiffs  claim  they,  as  royalty
owners,  are not responsible.  Second, the plaintiffs claim they are entitled to
50 percent of the value of the helium  extracted  at the  Company's  Satanta gas
plant.  If the  plaintiffs  were to  prevail  on the above  two  claims in their
entirety,  it is possible that the Company's liability (both for periods covered
by the  lawsuit  and from the last date  covered by the lawsuit to the present -
because the deductions  continue to be taken and the  plaintiffs  continue to be
paid for a royalty share of the helium) could reach  approximately  $74 million,
plus prejudgment interest. In addition to the plaintiffs' past damage claims, if
the plaintiffs  were to prevail,  it is possible that in future periods of time,
the Company would have to stop charging  certain  expenses and as a result,  the
Company's  production  costs and  royalty  payments  related  to the  area would

                                       22




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


increase. However, the Company believes it has valid defenses to the plaintiffs'
claims and has paid the plaintiffs  properly under their  respective oil and gas
leases and other agreements, and intends to vigorously defend itself.

     The  Company  does not  believe  the costs it has  deducted  are a "cost of
production".  The costs being  deducted are post  production  costs  incurred to
transport the gas to the Company's  Satanta gas plant for processing,  where the
valuable hydrocarbon liquids and helium are extracted from the gas.

     The  factual  evidence  in the case  was  presented  to the  26th  Judicial
District Court without a jury in December 2001. Oral arguments were heard by the
court in April 2002,  and  although  the court has not yet entered a judgment or
findings,  it could do so at any time. The Company strongly denies the existence
of any material  underpayment to the plaintiffs and believes it presented strong
evidence at trial to support its positions. However, either through a negotiated
settlement or court ruling,  the Company could have to pay some part of the cost
of  production  claim and,  accordingly,  the Company has  established a partial
reserve for this claim.  The Company  has not  established  a provision  for the
helium claim. Although the amount of any resulting liability, to the extent that
it exceeds the Company's provision,  could have a material adverse effect on the
Company's results of operations for the quarterly reporting period in which such
liability  is  recorded,  the Company  does not expect that any such  additional
liability  will have a material  adverse  effect on its  consolidated  financial
position as a whole or on its  liquidity,  capital  resources  or future  annual
results of operations.

     MOSH  Holding.  The Company and its  principal  United  States  subsidiary,
Pioneer  Natural  Resources USA, Inc., were named as defendants in MOSH Holding,
L.P. v Pioneer Natural Resources  Company;  Pioneer Natural Resources USA, Inc.;
Woodside  Energy (USA) Inc.; and JPMorgan Chase Bank, NA, as Trustee of the Mesa
Offshore  Trust,  which was filed on April 11, 2005,  in the  District  Court of
Travis County, Texas (250th Judicial District). The plaintiff is a unitholder in
the Mesa Offshore  Trust,  which was created in 1982 as the sole limited partner
in a partnership  that holds an overriding  royalty  interest in certain oil and
gas leases offshore Louisiana and Texas. The plaintiff alleges that the Company,
together with Woodside  Energy (USA) Inc.  ("Woodside"),  concealed the value of
the royalty interest and worked to terminate the Mesa Offshore Trust prematurely
and to capture for itself and Woodside  profits that belong to the Mesa Offshore
Trust. The plaintiff also alleges breaches of fiduciary duty,  misapplication of
trust property, common law fraud, gross negligence, and breach of the conveyance
agreement  for the  overriding  royalty  interest.  The claims  appear to relate
principally  to  farmout  arrangements  established  in 2003  for  two  offshore
properties,  the Brazos Area Block A-7 and Brazos  Area Block  A-39.  The relief
sought by the  plaintiff  includes  monetary  and  punitive  damages and certain
equitable  relief,  including  an  accounting  of expenses,  a setting  aside of
certain farmouts, and a temporary and permanent injunction. The Company believes
the claims are without merit and intends to defend the lawsuit vigorously.

     Dorchester  Refining  Company  Site. A  subsidiary  of the Company has been
notified by a letter from the Texas Commission on Environmental Quality ("TCEQ")
dated August 24, 2005 that the TCEQ considers the subsidiary to be a potentially
responsible  party  with  respect  to  the  Dorchester  Refining  Company  State
Superfund  Site  located  in  Mount  Pleasant,  Texas.  In  connection  with the
acquisition  of oil and gas  assets in 1991,  the  Company  acquired  a group of
companies,  one of which was an entity that had owned a refinery  located at the
Mount Pleasant site from 1977 until 1984.  According to the TCEQ,  this refinery
was  responsible  for releases of  hazardous  substances  into the  environment.
Pursuant to applicable Texas law, the Company's  subsidiary,  which does not own
any  material  assets or  conduct  any  material  operations,  may be subject to
strict,  joint and  several  liability  for the costs of  conducting  a study to
evaluate  potential  remedial  options  and  for the  costs  of  performing  any
remediation  ultimately  required  by the TCEQ.  The  Company  does not know the
nature  and  extent  of  the  alleged  contamination,  the  potential  costs  of
remediation  or the portion,  if any, of such costs that may be allocable to the
Company's  subsidiary;  however,  the Company has noted that there  appear to be
other operators or owners who may share  responsibility for these costs and does
not expect  that any such  additional  liability  will have a  material  adverse
effect on its  consolidated  financial  position as a whole or on its liquidity,
capital resources or future annual results of operations.

     Environmental  Protection  Agency  Investigation.  On November 4, 2005, the
Company learned from the U.S.  Environmental  Protection  Agency that the agency
was  conducting a criminal  investigation  into a 2003 spill that  occurred at a
Company-operated  drilling  rig  located  on an ice island  offshore  Kuparuk in
Harrison Bay,  Alaska.  The investigation is being conducted in conjunction with

                                       23




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


the U.S.  Attorney's Office for the District of Alaska. The spill was previously
investigated by the Alaska  Department of  Environmental  Conservation  ("ADEC")
and,  following  completion of a clean up, the ADEC issued a letter  stating its
determination  that,  at that  time,  the site  did not  pose a threat  to human
health, safety or welfare, or the environment.  The Company is fully cooperating
with the government's investigation.

NOTE J.     Income Per Share From Continuing Operations

     Basic income per share from  continuing  operations is computed by dividing
income from  continuing  operations  by the  weighted  average  number of common
shares  outstanding for the period.  The computation of diluted income per share
from continuing  operations  reflects the potential dilution that could occur if
securities or other  contracts to issue common stock that are dilutive to income
from  continuing  operations  were  exercised or converted  into common stock or
resulted in the  issuance of common  stock that would then share in the earnings
of the Company.

     The following  table is a  reconciliation  of basic income from  continuing
operations to diluted  income from  continuing  operations for the three and six
months ended June 30, 2006 and 2005:



                                                           Three months ended         Six months ended
                                                                June 30,                  June 30,
                                                         ----------------------    ----------------------
                                                            2006         2005         2006         2005
                                                         ---------    ---------    ---------    ---------
                                                                         (in thousands)

                                                                                    
   Basic income from continuing operations............   $  65,886    $  22,229    $  64,919    $  49,951
   Interest expense on convertible notes, net of tax..         801          801        1,603        1,603
                                                          --------     --------     --------     --------
   Diluted income from continuing operations..........   $  66,687    $  23,030    $  66,522    $  51,554
                                                          ========     ========     ========     ========


     The following table is a  reconciliation  of basic weighted  average common
shares outstanding to diluted weighted average common shares outstanding for the
three and six months ended June 30, 2005 and 2004:



                                                           Three months ended         Six months ended
                                                                June 30,                  June 30,
                                                         ----------------------    ----------------------
                                                            2006         2005         2006         2005
                                                         ---------    ---------    ---------    ---------
                                                                         (in thousands)

                                                                                    
   Weighted average common shares outstanding (a):
      Basic...........................................    125,629      140,812      126,282      141,849
      Dilutive common stock options (b)...............        818        1,108          875        1,201
      Restricted stock awards.........................        853          999          863          909
      Convertible notes dilution (c)..................      2,324        2,327        2,326        2,327
                                                          -------      -------      -------      -------
      Diluted.........................................    129,624      145,246      130,346      146,286
                                                          =======      =======      =======      =======
<FN>
- ---------------
(a)  During August 2005, the Company's board of directors (the "Board") approved
     a share repurchase program  authorizing the purchase of up to $1 billion of
     the Company's common stock, $641 million of which was completed in 2005 and
     an  additional  $170 million of which has been  completed  through June 30,
     2006.
(b)  Common  stock  options  to  purchase  2,857  shares  of common  stock  were
     outstanding  but not  included in the  computations  of diluted  income per
     share from continuing operations for each of the three and six months ended
     June 30, 2005 because the exercise  prices of the options were greater than
     the average market price of the common shares and would be anti-dilutive to
     the computations.
(c)  The  Company  had  $98  million  and  $100  million  principal  amounts  of
     Convertible  Notes  outstanding  on June 30, 2006 and  December  31,  2005,
     respectively.  During July 2006,  holders  converted $71 million  principal
     amount of the  Convertible  Notes.  See Note O for  additional  information
     regarding the July 2006 conversions.
</FN>



                                       24




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


NOTE K.     Geographic Operating Segment Information

     The Company has operations in only one industry segment, that being the oil
and  gas  exploration  and  production   industry;   however,   the  Company  is
organizationally  structured along geographic operating segments or regions. The
Company has reportable  operations in the United  States,  Canada and Africa and
Other.  Africa and Other is primarily comprised of current or past operations in
Equatorial Guinea, Gabon, Morocco, Nigeria, South Africa and Tunisia.

     As previously referred to in Note B, during 2005, the Company sold Canadian
and United States oil and gas properties having carrying values of $58.9 million
and $31.4  million,  respectively,  on their dates of sale.  Also as  previously
referred to in Note B, during 2006, the Company sold Argentine assets and United
States oil and gas properties  having  carrying  values,  including net deferred
hedge losses, of $658.9 million and $433.7 million, respectively. The results of
operations of those properties have been reclassified as discontinued operations
in  accordance  with SFAS 144 and are  excluded  from the  geographic  operating
segment  information  provided below.  See Note N for information  regarding the
Company's discontinued operations.

     The following  tables provide the Company's  interim  geographic  operating
segment  data  for the  three  and six  months  ended  June 30,  2006 and  2005.
Geographic  operating  segment  income  tax  benefits   (provisions)  have  been
determined  based on statutory  rates existing in the various tax  jurisdictions
where the Company has oil and gas producing activities. The "Headquarters" table
column  includes  income and  expenses  that are not  routinely  included in the
earnings measures  internally  reported to management on a geographic  operating
segment basis.


                                       25




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)




                                                      United                 Africa                    Consolidated
                                                      States      Canada    and Other   Headquarters       Total
                                                     ---------   --------   ---------   ------------   ------------
                                                                         (in thousands)

                                                                                         
Three months ended June 30, 2006:
   Revenues and other income:
     Oil and gas................................     $ 331,212   $ 34,154   $ 42,204     $     -        $ 407,570
     Interest and other.........................           -          -          -           9,741          9,741
     Gain (loss) on disposition of assets, net..           150         77        -          (3,630)        (3,403)
                                                      --------    -------    -------      --------       --------
                                                       331,362     34,231     42,204         6,111        413,908
                                                      --------    -------    -------      --------       --------
   Costs and expenses:
     Oil and gas production.....................        83,560     10,780      8,726           -          103,066
     Depletion, depreciation and
        amortization............................        67,305     12,438      2,740         5,501         87,984
     Exploration and abandonments...............        28,335      3,180     10,103           -           41,618
     General and administrative.................           -          -          -          29,468         29,468
     Accretion of discount on asset
        retirement obligations..................           -          -          -           1,154          1,154
     Interest...................................           -          -          -          22,766         22,766
     Other......................................           -          -          -          11,759         11,759
                                                      --------    -------    -------      --------       --------
                                                       179,200     26,398     21,569        70,648        297,815
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing operations
      before income taxes.......................       152,162      7,833     20,635       (64,537)       116,093
   Income tax benefit (provision)...............       (55,539)    (2,790)    (7,565)       15,687        (50,207)
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing
      operations................................     $  96,623   $  5,043   $ 13,070     $ (48,850)     $  65,886
                                                      ========    =======    =======      ========       ========

Three months ended June 30, 2005:
   Revenues and other income:
     Oil and gas................................     $ 247,474   $ 23,561   $ 49,302     $     -        $ 320,337
     Interest and other.........................           -          -          -          12,031         12,031
     Gain on disposition of assets, net.........           -          -          -             109            109
                                                      --------    -------    -------      --------       --------
                                                       247,474     23,561     49,302        12,140        332,477
                                                      --------    -------    -------      --------       --------
   Costs and expenses:
     Oil and gas production.....................        63,483      8,524      7,633           -           79,640
     Depletion, depreciation and
        amortization............................        46,462      7,402      7,260         4,875         65,999
     Impairment of long-lived assets............           -          -          471           -              471
     Exploration and abandonments...............        23,424      2,682     11,392           -           37,498
     General and administrative.................           -          -          -          26,596         26,596
     Accretion of discount on asset
        retirement obligations..................           -          -          -           1,043          1,043
     Interest...................................           -          -          -          29,403         29,403
     Other......................................           -          -          -          15,713         15,713
                                                      --------    -------    -------      --------       --------
                                                       133,369     18,608     26,756        77,630        256,363
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing operations
      before income taxes.......................       114,105      4,953     22,546       (65,490)        76,114
   Income tax provision.........................       (41,648)    (1,808)    (8,475)       (1,954)       (53,885)
                                                      --------    -------    -------      --------        -------
   Income (loss) from continuing
      operations................................     $  72,457   $  3,145   $ 14,071     $ (67,444)     $  22,229
                                                      ========    =======    =======      ========       ========



                                       26




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)



                                                      United                 Africa                    Consolidated
                                                      States      Canada    and Other   Headquarters       Total
                                                     ---------   --------   ---------   ------------   ------------
                                                                         (in thousands)

                                                                                         
Six months ended June 30, 2006:
   Revenues and other income:
     Oil and gas................................     $ 641,093   $ 62,516   $ 83,429     $     -        $ 787,038
     Interest and other.........................           -          -          -          26,852         26,852
     Gain (loss) on disposition of assets, net..           150         77        -          (3,703)        (3,476)
                                                      --------    -------    -------      --------       --------
                                                       641,243     62,593     83,429        23,149        810,414
                                                      --------    -------    -------      --------       --------
   Costs and expenses:
     Oil and gas production.....................       161,461     21,694     14,594           -          197,749
     Depletion, depreciation and
        amortization............................       130,921     19,668      8,435        11,366        170,390
     Exploration and abandonments...............       106,616      6,596     53,048           -          166,260
     General and administrative.................           -          -          -          61,715         61,715
     Accretion of discount on asset
        retirement obligations..................           -          -          -           2,302          2,302
     Interest...................................           -          -          -          59,342         59,342
     Other......................................           -          -          -          16,813         16,813
                                                      --------    -------    -------      --------       -------
                                                       398,998     47,958     76,077       151,538         674,571
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing operations
      before income taxes.......................       242,245     14,635      7,352      (128,389)       135,843
   Income tax benefit (provision)...............       (88,419)    (5,213)     1,653        21,055        (70,924)
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing
      operations................................     $ 153,826   $  9,422   $  9,005     $(107,334)     $  64,919
                                                      ========    =======    =======      ========       ========

Six months ended June 30, 2005:
   Revenues and other income:
     Oil and gas................................     $ 503,121   $ 44,049   $ 96,993     $     -        $ 644,163
     Interest and other.........................           -          -          -          14,051         14,051
     Gain on disposition of assets, net.........         2,032        -          -             218          2,250
                                                      --------    -------    -------      --------       --------
                                                       505,153     44,049     96,993        14,269        660,464
                                                      --------    -------    -------      --------       --------
   Costs and expenses:
     Oil and gas production.....................       127,580     17,604     15,400           -          160,584
     Depletion, depreciation and
        amortization............................        98,814     14,441     16,638         9,414        139,307
     Impairment of long-lived assets............           -          -          623           -              623
     Exploration and abandonments...............        52,227      6,423     32,677           -           91,327
     General and administrative.................           -          -          -          54,084         54,084
     Accretion of discount on asset
        retirement obligations..................           -          -          -           2,089          2,089
     Interest...................................           -          -          -          62,149         62,149
     Other......................................           -          -          -          24,554         24,554
                                                      --------    -------    -------      --------       -------
                                                       278,621     38,468     65,338       152,290        534,717
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing operations
      before income taxes.......................       226,532      5,581     31,655      (138,021)       125,747
   Income tax benefit (provision)...............       (82,684)    (2,037)   (10,535)       19,460        (75,796)
                                                      --------    -------    -------      --------       --------
   Income (loss) from continuing
      operations................................     $ 143,848   $  3,544   $ 21,120     $(118,561)     $  49,951
                                                      ========    =======    =======      ========       ========



                                       27




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)



                                               United                                    Africa                      Consolidated
                                               States       Argentina       Canada      and Other     Headquarters       Total
                                            -----------    -----------    ----------    ----------    ------------    ------------
                                                                                (in thousands)

                                                                                                    
Segment assets (as of June 30, 2006)......  $ 5,831,381    $       -      $  487,662    $  216,865    $   531,520     $7,067,428
                                             ==========     ==========     =========     =========     ==========      =========
Segment assets (as of December 31, 2005)..  $ 5,899,637    $   735,191    $  363,773    $  170,484    $   160,149     $7,329,234
                                             ==========     ==========     =========     =========     ==========      =========


NOTE L.     Volumetric Production Payments

     During  2005,  the Company  sold 27.8 MMBOE of proved  reserves by means of
three  VPP  agreements  for  net  proceeds  of  $892.6  million,  including  the
assignment  of  the  Company's   obligations  under  certain   derivative  hedge
agreements.  Proceeds from the VPPs were  initially  used to reduce  outstanding
indebtedness.  The  first  VPP  sold  58 Bcf of gas  volumes  over  an  expected
five-year  term that began in February  2005. The second VPP sold 10.8 MMBbls of
oil volumes over an expected  seven-year  term that began in January  2006.  The
third VPP sold 6.0 Bcf of gas volumes over an expected  32-month term that began
in May 2005 and 6.2 MMBbls of oil volumes over an expected  five-year  term that
began in January 2006.

     The Company's VPPs represent  limited-term  overriding royalty interests in
oil and gas reserves  which:  (i) entitle the  purchaser  to receive  production
volumes over a period of time from specific lease  interests;  (ii) are free and
clear of all associated future production costs and capital expenditures;  (iii)
are nonrecourse to the Company (i.e.,  the  purchaser's  only recourse is to the
assets acquired); (iv) transfer title to the purchaser and (v) allow the Company
to retain the assets after the VPPs volumetric quantities have been delivered.

     Under SFAS No.  19,  "Financial  Accounting  and  Reporting  by Oil and Gas
Producing  Companies",  a VPP is  considered  a sale of  proved  reserves.  As a
result,  the Company (i) removed the proved  reserves  associated with the VPPs;
(ii)  recognized the VPP proceeds as deferred  revenue which are being amortized
on a  unit-of-production  basis to oil and gas  revenues  over the  terms of the
VPPs; (iii) retained  responsibility for 100 percent of the production costs and
capital costs related to VPP interests and (iv) no longer recognizes  production
associated with the VPP volumes.

     The  following  table  provides  information  about  the  deferred  revenue
carrying values of the Company's VPPs:



                                                          Gas          Oil         Total
                                                       ---------    ---------    ---------
                                                                  (in thousands)

                                                                        
    Deferred revenue at December 31, 2005.........     $ 249,323    $ 605,515    $ 854,838
    Less 2006 amortization........................       (37,852)     (57,983)     (95,835)
                                                        --------     --------     --------
         Deferred revenue at June 30, 2006........     $ 211,471    $ 547,532    $ 759,003
                                                        ========     ========     ========


     The  above  deferred  revenue  amounts  will be  recognized  in oil and gas
revenues in the Consolidated  Statements of Operations as noted below,  assuming
the related VPP production volumes are delivered as scheduled (in thousands):


                                                             
           Remaining 2006.................................      $   94,492
           2007...........................................         181,232
           2008...........................................         158,138
           2009...........................................         147,906
           2010...........................................          90,215
           2011...........................................          44,951
           2012...........................................          42,069
                                                                 ---------
                                                                $  759,003
                                                                 =========



                                       28




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


NOTE M.     Insurance Claims

     Fain Plant. During May 2005, the Company sustained damages as a result of a
fire at its Fain gas plant in the West Panhandle field. The damages  interrupted
production  from  mid-May  through  mid-July  of 2005.  The  Company  maintained
business   interruption  and  physical  damage   insurance   coverage  for  such
circumstances.  The  Company  recognized  a total of $17.9  million in  business
interruption   recoveries  and  $4.4  million  in  physical  damage   recoveries
associated with the Fain gas plant fire. The Company recognized $14.2 million of
the business  interruption  recoveries  in 2005 and the  remaining  $3.7 million
during  the first  quarter of 2006,  which is  included  in other  income in the
Company's accompanying Consolidated Statements of Operations.

     Hurricanes  Katrina and Rita. During August and September 2005, the Company
sustained  damages  as a  result  of  Hurricanes  Katrina  and  Rita at  various
facilities in the Gulf of Mexico. Other than the East Cameron facility discussed
further  below,  the damages to the facilities  were covered by physical  damage
insurance.

     The Company filed a business interruption claim with its insurance provider
related  to its  Devils  Tower  field  resulting  from  its  inability  to  sell
production as a result of damages to third-party  facilities.  During the second
quarter of 2006, the Company  settled its business  interruption  claim with its
insurance  provider  for  $18.5  million,  which  is  included  in  income  from
discontinued operations in the Company's accompanying Consolidated Statements of
Operations.

     As a result of Hurricane  Rita,  the  Company's  East Cameron  facility was
destroyed  and the Company  does not plan to rebuild the  facility  based on the
current  economics of the field. The Company continues to evaluate the magnitude
of the loss. The Company  estimates that it will cost  approximately $86 million
to reclaim and completely  abandon the East Cameron  facility.  During the first
quarter of 2006,  the Company  recorded  an  additional  abandonment  obligation
charge of $42 million which is included in exploration  and  abandonments in the
accompanying Consolidated Statements of Operations to fully accrue the estimated
reclamation  and  abandonment  charges.  The  Company's  estimate to reclaim and
abandon the facilities is based upon an analysis and fee proposal  prepared by a
third-party engineering firm and assumes that the Company will be able to "reef"
a  substantial  portion  of  debris  in  place.  The  Company  is  updating  its
application  to reef  the  debris  in  place  and  plans  to file  the  modified
application with the appropriate  regulatory  agency during the third quarter of
2006.

     The Company has filed a claim with its  insurance  provider  regarding  the
loss at East Cameron.  Under the Company's  insurance  policy,  the East Cameron
facility had the  following  coverages:  (a) $14 million of  scheduled  property
value for the  platform,  (b) $4  million  of  scheduled  business  interruption
insurance after a deductible waiting period, (c) in excess of a $100 million for
debris removal  coverage,  in total,  for all assets per occurrence and (d) $100
million of "make well safe" coverage, in total, for all assets per occurrence.

     In December 2005, the Company received the $14 million  scheduled value for
the East Cameron  assets and recognized a gain of $9.7 million during the fourth
quarter of 2005. The Company received the $4.0 million of business  interruption
recoveries  during the first  quarter of 2006.  The  Company  believes  that its
debris removal and make well safe coverages, in combination,  will substantially
cover the costs to  abandon  the East  Cameron  facility.  The  Company  has not
recorded any estimated  recoveries  related to insurance due to the early nature
of the claim and the need to better quantify the claim.


                                       29




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


NOTE N.     Discontinued Operations

     During 2005 and 2006,  the Company sold its  interests in the following oil
and gas assets:



       Country           Description of Assets           Date Divested       Net Proceeds        Gain
       -------           ---------------------           -------------       ------------      --------
                                                                                    (in millions)

                                                                                
       Canada            Martin Creek, Conroy Black      May 2005             $  197.2         $  138.3
                         and Lookout Butte fields

       United States     Two Gulf of Mexico              August 2005          $   59.1         $   27.7
                         shelf fields

       United States     Deepwater Gulf of Mexico        March 2006           $1,160.8(a)      $  727.1
                         fields

       Argentina         Argentine assets                April 2006           $  664.6         $    5.7
<FN>
- -----------
(a)  Net  proceeds  do not  reflect  the cash  payment  of  $193.2  million  for
     terminated hedges associated with the deepwater Gulf of Mexico assets.
</FN>


     Pursuant to SFAS 144, the Company has  reflected  the results of operations
of the above divestitures as discontinued operations, rather than as a component
of continuing  operations.  The following table represents the components of the
Company's  discontinued  operations  for the three and six months ended June 30,
2006 and 2005:



                                                           Three months ended          Six months ended
                                                                June 30,                    June 30,
                                                          ---------------------     ----------------------
                                                            2006         2005          2006         2005
                                                          --------    ---------     ---------    ---------
                                                                          (in thousands)
                                                                                     
     Revenues and other income:
        Oil and gas...................................    $ 18,108    $ 231,871     $ 199,677    $ 428,357
        Interest and other............................      19,411       35,865        21,258       62,178
        Gain on disposition of assets.................       4,282      138,700       732,784      138,780
                                                           -------     --------      --------     --------
                                                            41,801      406,436       953,719      629,315
                                                           -------     --------      --------     --------
     Costs and expenses:
        Oil and gas production........................       3,287       30,586        31,242       63,604
        Depletion, depreciation and amortization......         -         83,010        37,327      165,853
        Exploration and abandonments..................       1,258       14,923         7,205       28,479
        General and administrative....................       6,537        2,753         8,969        4,850
        Accretion of discount on asset retirement
           obligation.................................          72        1,059           804        2,153
        Interest......................................         116          809           460        1,314
        Other.........................................         222        1,869         1,712        4,748
                                                           -------     --------      --------     --------
                                                            11,492      135,009        87,719      271,001
                                                           -------     --------      --------     --------
     Income from discontinued operations
        before income taxes...........................      30,309      271,427       866,000      358,314
     Income tax benefit (provision):
        Current.......................................      (8,545)      (5,563)     (152,575)      (7,889)
        Deferred......................................         389     (102,534)     (147,098)    (130,160)
                                                           -------     --------      --------     --------
     Income from discontinued operations, net of tax..    $ 22,153    $ 163,330     $ 566,327    $ 220,265
                                                           =======     ========      ========     ========




                                       30




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 2006
                                   (Unaudited)


     The Company has provided  the  purchaser of its  Argentine  assets  certain
indemnifications, subject to defined limitations. The indemnifications primarily
pertain  to  matters  of  litigation,   environmental   contingencies,   royalty
obligations and income taxes,  none of which the Company believes to be probable
of having a material  impact on its  future  results  of  operations,  financial
position or liquidity.

NOTE O.     Subsequent Events

     Senior convertible  notes.  During July 2006, holders of $71 million of the
outstanding  Convertible  Notes exercised their  conversion  rights.  Associated
therewith,  the Company paid $56.7 million in cash, issued 1.7 million shares of
common  stock and  recognized a net  increase to  stockholders'  equity of $14.3
million.






                                       31




                        PIONEER NATURAL RESOURCES COMPANY


Item 2.     Management's Discussion and Analysis of Financial Condition and
            Results of Operations

Financial and Operating Performance

     The Company's financial and operating performance for the second quarter of
2006 included the following highlights:

     o      The  completion of the sale of  Argentine assets for net proceeds of
            $664.6 million during April 2006,  recognizing a second quarter gain
            of $5.7 million.
     o      The resumption of the Company's $1 billion share repurchase program,
            the final $359 million of which was subject to the completion of the
            deepwater  Gulf of Mexico and  Argentine  divestitures.  The Company
            repurchased 4.3 million shares of its common stock during the second
            quarter of 2006,  completing $170  million  of the  remaining  share
            repurchase program.
     o      The May  2006  issuance  of $450  million of  6.875%  Notes  for net
            proceeds of $447.4 million.  The Company used the net  proceeds from
            the 6.875% Notes to repurchase $346.2 million of its 6.50% Notes and
            for general corporate purposes.
     o      The exercise  by the  Company of its option  under an agreement with
            ConocoPhillips  to acquire an additional 40 percent working interest
            in  the  Cosmopolitan  Unit  located  offshore  in  the  Cook Inlet,
            increasing  Pioneer's  working  interest  to 50 percent. Pioneer was
            elected operator of the Cosmopolitan Unit.
     o      The  recognition  of income  from  continuing  operations  of  $65.9
            million  ($.52 per diluted share) for the second quarter of 2006, as
            compared to  $22.2 million  ($.16 per diluted share)  for the second
            quarter of 2005.
     o      The  recognition of  income from  discontinued  operations of  $22.2
            million  ($.17 per diluted share) during  the second quarter of 2006
            attributable to hurricane  business interruption  insurance recovery
            gains  related  to  the  deepwater  Gulf  of  M exico assets and the
            Company's  sale of Argentine assets during April 2006, including the
            aforementioned  $5.7 million gain,  as  compared to  $163.3  million
            ($1.12 per diluted share) of income from discontinued operations for
            the second quarter of 2005.
     o      The recognition  of second quarter 2006  net income of $88.0 million
            ($.69 per diluted share),  as compared to $185.6 million  ($1.28 per
            diluted share)  for the second  quarter of 2005. The decrease in net
            income is primarily due to a $141.2 million decrease in  income from
            discontinued operations during 2005 and 2006, partially offset by an
            $87.2 million increase in oil and gas revenues.
     o      A reduction in  net cash provided  by operating activities to $158.2
            million for the  second quarter  of 2006 from  $309.9 million during
            the second  quarter of 2005.  The reduction in  net cash provided by
            operating activities  was primarily due to  operations  discontinued
            during  2005 and 2006,  partially offset by increases in oil and gas
            sales from continuing operations.
     o      A reduction in outstanding debt of $794.4 million, or 39 percent, as
            of June 30, 2006 as  compared to debt outstanding as of December 31,
            2005,  resulting  in  a  decrease  in  the  Company's  debt  to book
            capitalization  to 30 percent  at June 30,  2006 from 48  percent at
            December 31, 2005.

Third Quarter 2006 Outlook

     Based on current  estimates,  the Company  expects that third  quarter 2006
production  will  average  95,000 to 100,000  BOEPD.  The lower end of the range
reflects the typical  variability in the timing of oil cargo  shipments in South
Africa and Tunisia.

     Third quarter  production costs (including  production and ad valorem taxes
and transportation costs) are expected to average $11.00 to $12.00 per BOE based
on current  NYMEX  strip  prices for oil and gas.  DD&A  expense is  expected to
average $9.50 to $10.50 per BOE.

     Total exploration and abandonment  expense is expected to be $20 million to
$65 million and could include (i) up to $15 million of costs associated with the
high-impact  drilling  of a new  prospect  adjacent  to  the  Company's  Clipper
discovery   (deepwater  Gulf  of  Mexico)  and  an  onshore  Norphlet   prospect
(Mississippi), (ii) $25 million associated with lower-risk resource plays in the
Edwards Trend in South Texas,  Uinta/Piceance in the Rockies, Canada and Tunisia
and (iii) $20  million to $25 million for  seismic  investments  and  personnel,
primarily related to the  onshore resource plays  Pioneer is currently pursuing.

                                       32




                        PIONEER NATURAL RESOURCES COMPANY


General and administrative expense is expected to be $29 million to $32 million.
Interest expense is expected to be $22 million to $25 million.  Interest income,
primarily  from cash  investments,  is  expected to be $3 million to $5 million.
Accretion  of  discount  on asset  retirement  obligations  is expected to be $1
million to $2 million.

     The Company's third quarter  effective income tax rate is expected to range
from 35 percent to 45 percent  based on current  capital  spending  plans.  Cash
income taxes are  expected to range from $5 million to $15 million,  principally
related to Tunisian income taxes and nominal alternative minimum tax in the U.S.

     Pioneer  increased its 2006 capital budget by $100 million to $1.4 billion,
excluding  discontinued  operations,  to  accelerate  successful  Edwards  Trend
activities  and fund new  shale gas  acreage  additions  and core  area  bolt-on
acquisitions.

Acquisitions, Divestments, Operations and Drilling Highlights

     During the first half of 2006, the Company  completed the  divestitures  of
certain  of  its  deepwater   Gulf  of  Mexico  assets  and  Argentine   assets.
Additionally, during 2005, the Company sold its interests in certain oil and gas
properties  on the shelf of the Gulf of Mexico  and  certain  fields in  Canada.
Operating  results and the  related  gains on  disposition  of assets from these
divestitures  are reported as  discontinued  operations.  See Note N of Notes to
Consolidated Financial Statements included in "Item 1. Financial Statements" for
additional information regarding the Company's discontinued operations.

     During the first  half of 2006,  the  Company  incurred  $717.7  million in
finding  and  development   costs  including   $417.5  million  for  development
activities,  $203.5  million for  exploration  activities  and $96.7 million for
acquisitions and land. The majority of the Company's development and exploration
expenditures   were  spent  on  drilling  wells,   acquiring  seismic  data  and
constructing infrastructure associated with successful drilling activities.

     The following table summarizes by geographic area the Company's finding and
development costs incurred,  excluding asset retirement obligations,  during the
first half of 2006 and the total  wells  planned  to be drilled  during the year
ending December 31, 2006:


                                       Property
                                   Acquisition Costs                                                     2006
                                ----------------------    Exploration    Development                     Wells
                                 Proved      Unproved        Costs          Costs         Total         Planned
                                ---------    ---------    -----------    -----------    -----------     --------
                                                               ($ in thousands)
                                                                                       
United States:
    Gulf of Mexico (a).......   $     -      $       3    $    33,616    $    10,626    $    44,245           3
    Onshore Gulf Coast.......           3       23,463         23,538         17,296         64,300          57
    Permian Basin............      36,668       13,513          4,001        116,941        171,123         340
    Mid-Continent............         -            -               55         13,651         13,706          40
    Rocky Mountains..........          36        5,256         16,094         88,532        109,918         387
    Alaska...................         -          2,001         24,671         36,786         63,458           3
                                 --------     --------     ----------     ----------     ----------      ------
                                   36,707       44,236        101,975        283,832        466,750         830
                                 --------     --------     ----------     ----------     ----------      ------
Argentina (a)................         -              2         10,223         25,543         35,768         -
Canada.......................          21        2,730         59,338         50,576        112,665         271
Nigeria......................         -          7,995         21,907            -           29,902           1
South Africa.................         -            -              130         55,961         56,091           5
Tunisia......................         -          5,000          5,824          1,615         12,439           7
Other  ......................         -            -            4,056            -            4,056         -
                                 --------     --------     ----------     ----------     ----------      ------
                                       21       15,727        101,478        133,695        250,921         284
                                 --------     --------     ----------     ----------     ----------      ------
         Total Worldwide.....   $  36,728    $  59,963    $   203,453    $   417,527    $   717,671       1,114
                                 ========     ========     ==========     ==========     ==========      ======
<FN>
- -----------
(a)  Approximately  $8.2 million of the finding and  development  costs incurred
     are  associated  with the divested  deepwater  Gulf of Mexico  assets.  The
     Company's  $1.4 billion  2006 capital  budget does not include the incurred
     costs of the divested  deepwater Gulf Mexico assets or any of the Argentine
     finding and development costs incurred as the Company was in the process of
     selling those assets when the budget was prepared.
</FN>



                                       33




                        PIONEER NATURAL RESOURCES COMPANY


     The   following   table   summarizes   the   Company's    development   and
exploration/extension  drilling  activities  for the six  months  ended June 30,
2006:


                                                         Development Drilling
                            -------------------------------------------------------------------------------
                            Beginning Wells    Wells   Successful   Unsuccessful   Disposed   Ending Wells
                              in Progress      Spud      Wells         Wells         Wells     in Progress
                            ---------------   ------   ----------   ------------   --------   ------------
                                                                              
United States...............        29           289        304             4           -           10
Argentina...................         2            21         14             1             8        -
Canada......................         3             2          2           -             -            3
Africa......................       -               3          1           -             -            2
                                ------        ------     ------       -------       -------     ------
      Total Worldwide.......        34           315        321             5             8         15
                                ======        ======     ======       =======       =======     ======




                                                    Exploration/Extension Drilling
                            -------------------------------------------------------------------------------
                            Beginning Wells    Wells   Successful   Unsuccessful   Disposed   Ending Wells
                              in Progress      Spud      Wells         Wells         Wells     in Progress
                            ---------------   ------   ----------   ------------   --------   ------------
                                                                              
United States...............         7            31         21             3           -           14
Argentina...................         4             6          4             2             4        -
Canada......................       109           103        175             6           -           31
Africa......................         3             2          1             1           -            3
                                ------        ------     ------       -------       -------     ------
      Total Worldwide.......       123           142        201            12             4         48
                                ======        ======     ======       =======       =======     ======


     Gulf of Mexico area. During October 2005, the Company announced a discovery
on its Clipper  prospect in the Green Canyon Blocks 299 and 300 in the deepwater
Gulf of Mexico.  The Company  intends to develop the  Clipper  discovery,  which
Pioneer  operates  with  a  55  percent  working   interest.   The  Company  has
successfully  drilled  its  first  Clipper  appraisal  well,  spudded  the  next
appraisal well and plans to drill an additional exploratory well in proximity to
the Clipper Prospect.

     Pioneer  intends to pursue the  divestment of its remaining  Gulf of Mexico
shelf  properties.  No  assurance  can be given that  there  will be  purchasers
willing to purchase these properties on terms acceptable to Pioneer.

     As a result of Hurricane  Rita,  the  Company's  East Cameron  facility was
destroyed  and the Company  does not plan to rebuild the  facility  based on the
current  economics  of the  field.  The  Company  estimates  that it  will  cost
approximately  $86 million to reclaim and  completely  abandon the East  Cameron
facility.  During the first quarter of 2006, the Company  recorded an additional
abandonment  obligation  charge of $42 million which is included in  exploration
and  abandonments in the accompanying  Consolidated  Statements of Operations to
fully accrue the estimated  reclamation and abandonment  charges.  The Company's
estimate to reclaim and abandon the facilities is based upon an analysis and fee
proposal prepared by a third-party engineering firm and assumes that the Company
will be able to "reef" a substantial  portion of debris in place. The Company is
updating  its  application  to reef the  debris  in place  and plans to file the
modified  application  with the appropriate  regulatory  agency during the third
quarter of 2006.  The Company  expects a  substantial  portion of the loss to be
covered by insurance.

     Onshore Gulf Coast area. In the Edwards  Trend in South Texas,  the Company
has  drilled  five  prospects  to date in 2006  with 100  percent  success.  The
majority of these wells are on production or expected to be on production by the
end of the  third  quarter  or  early in the  fourth  quarter  of  2006.  On the
Company's Stingray discovery announced at the end of first quarter,  drilling is
in  progress  on the  first of  three  delineation  wells.  In the  Sinor  Area,
optimizing  development well placement awaits the results of a 3-D seismic shoot
that is currently being permitted.

     Pioneer  currently  holds more than 232,000  gross acres in the trend area,
has four rigs  currently  dedicated to the play and plans to add two rigs to the
program  later in 2006 and at least one rig during  2007.  The Company  plans to
drill 35 to 40  Edwards  Trend  development  and  exploration  wells,  shoot 3-D
seismic and acquire additional acreage during 2006.


                                       34




                        PIONEER NATURAL RESOURCES COMPANY


     The Company has acquired  and  continues  to acquire  acreage  positions in
Mississippi  for its Norphlet and Cotton Valley plays.  The Company is currently
drilling a Norphlet  test well and plans to drill a Cotton  Valley  well in late
2006.

     Permian Basin area. During 2006, the Company plans to increase its drilling
activity by  approximately  70 percent over the wells drilled in the area during
2005 and by almost 200 percent relative to average annual wells drilled over the
past five years. The Company has been acquiring  additional acreage positions in
the area and drilling to the deeper Wolfcamp formations in the Spraberry field.

     Mid-Continent  area.  The  Company's  2006  drilling  plans  are  primarily
comprised  of  drilling  development  wells in the  Hugoton  and West  Panhandle
fields. Pioneer is pursuing regulatory relief in the West Panhandle to allow for
additional future drilling locations.

     Rocky  Mountain  area.  In the Raton Basin,  production  is increasing as a
result  of a  pipeline  expansion  that  was  completed  in  October  2005  plus
additional field and wellhead  compression.  Pioneer plans to increase its Raton
drilling to approximately 330 wells in 2006.  Additionally,  the Company intends
to continue efforts during 2006 to optimize gathering and compression facilities
in the area.

     In  northwest  Colorado,  the  Company's  programs to evaluate  the coalbed
methane  ("CBM")  resource  potential  at Lay Creek and  Columbine  Springs  are
progressing.  At Lay Creek,  the  Company  has  drilled  six pilot  wells in two
separate pilot areas and completed workovers and recompletions on fourteen wells
drilled by the previous  operator.  Results to date  indicate that the coals are
thicker than  expected.  During the second half of 2006,  Pioneer plans to drill
additional pilot wells and development  wells and install the  infrastructure to
initiate sales by the end of 2006. At Columbine Springs,  the Company expects to
complete its  extension  pilot program by the end of July 2006 and to have these
and the existing  wells on production by the end of the third quarter of 2006 to
assess  production   potential  and  water-handling   requirements.   Full-field
development  could begin in both areas in 2007.  The Company also plans to drill
additional wells to further evaluate its resource play at Castlegate and to test
its conventional Entrada gas play, both in the Uinta Basin in Utah.

     Alaska area.  The Company's 2005 - 2006 winter  drilling  season program in
Alaska included three exploratory  wells (Hailstorm,  Cronus and Antigua) in the
Central  North Slope area where  Pioneer and its partners  tested  multiple play
types that were  close to  existing  infrastructure.  The  Company's  Arctic Fox
drilling rig was  utilized for the  three-well  program.  All three  exploratory
wells were determined to be unsuccessful.

     In June 2006, the Company  exercised its option to acquire an additional 40
percent working interest, for a total current working interest of 50 percent, in
the  Cosmopolitan  Unit.  Pioneer was also elected  operator of the Cosmopolitan
Unit. The Company is currently in the process of developing an appraisal program
for the Cosmopolitan Unit.

     On the Oooguruk  project,  the Company  continues to procure  equipment and
services, fabricate modules and modify a drilling rig needed for the development
of the project.  The 2006-2007  winter drilling  program,  which could be two to
three wells, is being planned for the National Petroleum Reserve - Alaska area.

     Canada.  The Company's current  operations are focused upon CBM projects in
the Horseshoe  Canyon and Mannville  coals. In the Horseshoe  Canyon trend,  the
Company drilled 19 wells during the first half of 2006 due to an extended winter
thaw and  rains  in June.  Two rigs  and an  expected  third  rig will  continue
drilling on this project during the third and fourth quarters of 2006 on the 181
wells  remaining to be drilled of the 200 planned wells for 2006. The Company is
planning to tie 300 wells into gathering and  compression  facilities by the end
of 2006. In the Alberta Mannville CBM play, the Company drilled three of the six
planned  2006  horizontal  wells in two pilot  areas to test three new CBM pilot
areas.  During the first half of 2006, the Company  completed its 2006 Chinchaga
area drilling program.

     West Africa.  During the first quarter of 2006, the Company participated in
the  drilling  of the Pina 1-X well on Block 256 in the  deepwater  of  Nigeria,
which was  unsuccessful.  As a result,  the  Company  recorded a charge of $33.4
million for the dry hole cost and related acreage impairment.  The Company has a
25 percent working interest in the block. The well tested multiple objectives on
a large  thrust  structure  located  near the  western  edge of the  block.  The
partners  plan  to  drill  an  additional  well on  Block  256 in 2007 to test a
different play type.


                                       35




                        PIONEER NATURAL RESOURCES COMPANY


     A  partially-owned  subsidiary of the Company  joined Oranto  Petroleum and
Orandi  Petroleum  in an existing  production  sharing  contract on Block 320 in
deepwater  Nigeria  to  gain  exploration  rights  from  the  Nigerian  National
Petroleum  Corporation.  The  subsidiary,  which holds a 51 percent  interest in
Block 320, is owned 59 percent by the Company and 41 percent by an  unaffiliated
party.  The Company  acquired  3-D seismic  data of the block  during the fourth
quarter of 2005 and the first  quarter of 2006 and is currently  processing  the
data. The Company's subsidiary plans to drill the first well on the block during
2007.

     In  addition,  the  Company  expects  to drill a well on  Block H  offshore
Equatorial  Guinea in 2007. The Company holds a 50 percent  working  interest in
the block.

     As it  relates  to the  West  Africa  assets,  the  Company  is  evaluating
alternatives  to reduce  the  Company's  future  capital  commitments  for these
assets.

     South  Africa.  During the first half of 2006,  the Company and its partner
drilled  three  wells  that are  awaiting  completion  and  plan to drill  three
additional  development  wells in 2006 and  early  2007 to  develop  the gas and
condensate  fields discovered  offshore South Africa.  The Company also invested
$33 million in  facilities  infrastructure  and design work,  with  installation
expected to commence at the end of 2006.  First  production  from the project is
expected in the second half of 2007.

     Tunisia.  In the Adam Concession,  the Adam 4 well drilled during the first
quarter of 2006 was successful, extending the Company's 100 percent success rate
in the  concession.  In 2006, the Company's  interest in the Adam Concession was
reduced  from 24  percent  to 20  percent  in  accordance  with the terms of the
concession.  On the  adjacent  Jenein  Nord  block,  the  Company  acquired  the
remaining  equity interest in February 2006,  becoming the operator of the block
with 100 percent  working  interest.  The Company is currently  completing a 3-D
seismic  shoot on both the Jenein  Nord block and Adam  Concession.  The Company
plans to drill two additional  wells on the Adam Concession (of which the Adam 5
has been  spudded) and two wells on the Jenein Nord block during the second half
of 2006. A drilling rig is expected to begin  drilling  operations on the Jenein
Nord  block  during the fourth  quarter  of 2006.  A well is planned  during the
fourth  quarter of 2006 on the Borj El Khadra  block,  which is  adjacent to the
Adam Concession.

Results of Operations

     Oil and gas  revenues.  Oil and gas  revenues  from  continuing  operations
totaled $407.6 million and $787.0 million for the three and six month ended June
30, 2006, respectively, as compared to $320.3 million and $644.2 million for the
same respective periods of 2005.

     The increase in oil and gas revenues from continuing  operations during the
three  months  ended June 30,  2006,  as  compared  to the same  period of 2005,
resulted from increases in sales prices and volumes.  In the  quarter-to-quarter
comparison,  the  Company  reported an 85 percent  increase in oil prices,  a 26
percent  increase  in NGL prices and a six percent  decrease in gas prices.  The
Company  also  realized  a five  percent  increase  in  average  daily BOE sales
volumes, which is reflective of increases in NGL and gas volumes sold, partially
offset by declines in oil volumes.  The  increase in oil and gas  revenues  from
continuing  operations during the six months ended June 30, 2006,  resulted from
increases  in sales  prices,  partially  offset by a decline in  reported  sales
volumes.  In the  year-to-date  comparisons,  the Company reported an 80 percent
increase  in oil prices,  a 30 percent  increase in NGL prices and a two percent
increase in gas prices. The Company also realized year-to-date  increases in NGL
and gas volumes sold, partially offset by a decline in oil sales volumes.

     Contributing to the  period-by-period  increases in reported oil prices and
decreases in reported oil sales  volumes  were first  deliveries  of oil volumes
under the Company's VPP agreements during January 2006. In accordance with GAAP,
VPP deliveries result in VPP deferred revenue amortization being recognized with
no associated sales volumes being recorded.


                                       36




                        PIONEER NATURAL RESOURCES COMPANY


     The following  table provides  average daily sales volumes from  continuing
operations,  by geographic area and in total, for the three and six months ended
June 30, 2006 and 2005:



                                                          Three months ended          Six months ended
                                                               June 30,                    June 30,
                                                         ---------------------     ----------------------
                                                           2006         2005          2006         2005
                                                         --------    ---------     ---------    ---------
                                                                         (in thousands)
                                                                                    
       Oil (Bbls):
          United States...............................     17,671       19,875        17,320       21,191
          Canada......................................        307          210           292          186
          Africa......................................      6,593       10,452         7,121       11,205
                                                         --------    ---------     ---------    ---------
          Worldwide...................................     24,571       30,537        24,733       32,582
                                                         ========    =========     =========    =========
       NGLs (Bbls):
          United States...............................     18,731       14,834        18,455       16,154
          Canada......................................        412          610           415          514
                                                         --------    ---------     ---------    ---------
          Worldwide...................................     19,143       15,444        18,870       16,668
                                                         ========    =========     =========    =========
       Gas (Mcf):
          United States...............................    286,270      252,047       280,553      267,477
          Canada......................................     44,801       36,710        40,317       35,448
                                                         --------    ---------     ---------    ---------
          Worldwide...................................    331,071      288,757       320,870      302,925
                                                         ========    =========     =========    =========
       Total (BOE):
          United States...............................     84,114       76,716        82,533       81,925
          Canada......................................      8,186        6,939         7,427        6,608
          Africa......................................      6,593       10,452         7,121       11,205
                                                         --------    ---------     ---------    ---------
          Worldwide...................................     98,893       94,107        97,081       99,738
                                                         ========    =========     =========    =========


     On a quarter-to-quarter  comparison,  average daily sales volumes increased
by ten percent in the United  States and by 18 percent in Canada,  while average
daily  sales  volumes  decreased  by 37  percent in  Africa.  On a  year-to-date
comparison,  average daily sales volumes  increased by one percent in the United
States and by 12 percent in Canada,  while average daily sales volumes decreased
by 36 percent in Africa.  Average daily sales volumes from continuing operations
in the United States were higher principally due to Permian Basin  acquisitions,
enhanced gas gathering and  compression  facilities in the Rocky  Mountain area,
and  production  results  from  the  Company's  development  drilling  programs.
Canadian average daily sales volumes from continuing operations increased due to
new  production  from wells drilled and connected to  infrastructure  during the
second  half of 2005 and  early  2006.  Partially  offsetting  these  production
increases  were the  aforementioned  increases  in  volumes  sold under VPPs and
production  decreases in Africa due to normal production  declines and timing of
oil shipments.

     The following table provides average daily sales volumes from  discontinued
operations,  by  geographic  area and in total,  during the three and six months
ended June 30, 2006 and 2005:



                                                          Three months ended          Six months ended
                                                               June 30,                    June 30,
                                                         ---------------------     ----------------------
                                                           2006         2005          2006         2005
                                                         --------    ---------     ---------    ---------
                                                                         (in thousands)
                                                                                    
       Oil (Bbls):
          United States...............................        -          6,549         4,839        6,376
          Argentina...................................      2,982        7,796         5,071        7,992
          Canada......................................        -             45           -             57
                                                         --------    ---------     ---------    ---------
          Worldwide...................................      2,982       14,390         9,910       14,425
                                                         ========    =========     =========    =========
       NGLs (Bbls):
          United States...............................        -             74           -             65
          Argentina...................................        406        1,948           849        1,761
          Canada......................................        -            264           -            224
                                                         --------    ---------     ---------    ---------
          Worldwide...................................        406        2,286           849        2,050
                                                         ========    =========     =========    =========
       Gas (Mcf):
          United States...............................      1,317      301,756        72,763      278,609
          Argentina...................................     42,538      135,188        88,537      132,783
          Canada......................................        173       10,472            87       12,910
                                                         --------    ---------     ---------    ---------
          Worldwide...................................     44,028      447,416       161,387      424,302
                                                         ========    =========     =========    =========
       Total (BOE):
          United States...............................        219       56,916        16,966       52,875
          Argentina...................................     10,477       32,275        20,676       31,884
          Canada......................................         29        2,054            15        2,433
                                                         --------    ---------     ---------    ---------
          Worldwide...................................     10,725       91,245        37,657       87,192
                                                         ========    =========     =========    =========



                                       37




                        PIONEER NATURAL RESOURCES COMPANY



     The oil and gas prices  that the  Company  reports  are based on the market
price received for the commodities adjusted by the results of the Company's cash
flow hedging  activities  and the  amortization  of deferred  VPP  revenue.  The
following table provides  average  reported  prices from  continuing  operations
(including the results of hedging  activities and the  amortization  of deferred
VPP revenue),  and average realized prices from continuing operations (excluding
the results of hedging  activities and the amortization of deferred VPP revenue)
by  geographic  area and in total,  for the three and six months  ended June 30,
2006 and 2005:



                                                          Three months ended          Six months ended
                                                               June 30,                    June 30,
                                                         ---------------------     ----------------------
                                                           2006         2005          2006         2005
                                                         --------    ---------     ---------    ---------
                                                                         (in thousands)
                                                                                    
       Average reported prices:
          Oil (per Bbl):
            United States.............................   $  69.43    $   30.13     $   64.82    $   29.71
            Canada....................................   $  72.37    $   35.22     $   69.89    $   41.97
            Africa....................................   $  70.34    $   51.84     $   64.73    $   47.82
            Worldwide.................................   $  69.71    $   37.60     $   64.86    $   36.01
          NGLs (per Bbl):
            United States.............................   $  35.84    $   28.34     $   34.81    $   27.14
            Canada....................................   $  57.97    $   41.18     $   56.10    $   39.89
            Worldwide.................................   $  36.32    $   28.85     $   35.28    $   27.54
          Gas (per Mcf):
            United States.............................   $   6.08    $    6.75     $    6.33    $    6.40
            Canada....................................   $   7.35    $    6.17     $    7.48    $    6.07
            Worldwide.................................   $   6.25    $    6.67     $    6.48    $    6.36
       Average realized prices:
          Oil (per Bbl):
            United States.............................   $  66.06    $   51.04     $   63.15    $   48.09
            Canada....................................   $  72.37    $   35.22     $   69.89    $   41.97
            Africa....................................   $  69.87    $   51.84     $   64.51    $   47.82
            Worldwide.................................   $  67.15    $   51.21     $   63.63    $   47.96
          NGLs (per Bbl):
            United States.............................   $  35.84    $   28.34     $   34.81    $   27.14
            Canada....................................   $  57.97    $   41.18     $   56.10    $   39.89
            Worldwide.................................   $  36.32    $   28.85     $   35.28    $   27.54
          Gas (per Mcf):
            United States.............................   $   5.56    $    6.20     $    6.26    $    5.87
            Canada....................................   $   6.90    $    6.17     $    7.14    $    6.08
            Worldwide.................................   $   5.75    $    6.20     $    6.37    $    5.90


     Hedging  activities.   The  Company  utilizes  commodity  swap  and  collar
contracts  in  order  to (i)  reduce  the  effect  of  price  volatility  on the
commodities the Company  produces and sells,  (ii) support the Company's  annual
capital  budgeting and expenditure  plans and (iii) reduce  commodity price risk
associated with certain capital projects.  During the three and six months ended
June 30,  2006,  the  Company's  commodity  price hedges  decreased  oil and gas
revenues  from  continuing  operations  by  $26.7  million  and  $84.1  million,
respectively,  as compared to $45.8  million and $76.9  million  during the same
respective  periods  in 2005.  See Note F of  Notes  to  Consolidated  Financial
Statements included in "Item 1. Financial  Statements" for specific  information
regarding the Company's hedging activities during the three and six months ended
June 30, 2006 and 2005.

     Deferred revenue.  During the three and six months ended June 30, 2006, the
Company's  amortization  of deferred VPP revenue  increased oil and gas revenues
from continuing operations by $47.9 million and $95.8 million,  respectively, as
compared to $20.4 million and $32.1 million during the same  respective  periods
in 2005. See Note L of Notes to Consolidated  Financial  Statements  included in
"Item 1. Financial  Statements" for specific information regarding the Company's
VPPs.

                                       38




                        PIONEER NATURAL RESOURCES COMPANY



     Interest  and other  income.  Interest  and other  income  from  continuing
operations  for the three and six months  ended June 30,  2006 and 2005 was $9.7
million and $26.9 million,  respectively, as compared to $12.0 million and $14.1
million for the same  respective  periods in 2005.  The decrease in interest and
other income from continuing  operations  during the three months ended June 30,
2006,  as  compared  to the same  period in 2005,  was  primarily  due to a $9.4
million decrease in business interruption insurance claims,  partially offset by
a $5.6  million  increase  in  interest  income and a $.6  million  increase  in
minority interest reimbursements. The increase in interest and other income from
continuing  operations during the six months ended June 30, 2006, as compared to
the same  period  in 2005,  was  primarily  due to a $6.2  million  increase  in
interest income, a $3.4 million increase in minority interest reimbursements,  a
$2.1  million  bad  debt  recovery  and a  $1.8  million  decrease  in  business
interruption  insurance  claims.  See Note M of Notes to Consolidated  Financial
Statements included in "Item 1. Financial Statements" for additional information
regarding the Company's business interruption insurance claims.

     Oil and gas production  costs.  The Company recorded oil and gas production
costs from continuing operations of $103.1 million and $197.7 million during the
three and six months  ended June 30,  2006,  respectively,  as compared to $79.6
million and $160.6 million for the same respective  periods of 2005. In general,
lease operating  expenses and workover expenses  represent the components of oil
and gas production  costs over which the Company has management  control,  while
production and ad valorem taxes are directly  related to commodity price changes
and third-party  transportation  charges are related to volumes produced.  Total
oil and gas production costs per BOE from continuing  operations increased by 23
percent and 26 percent, respectively, during the three and six months ended June
30, 2006, as compared to the same respective  periods in 2005,  primarily due to
(i) increases of approximately $.88 and $1.06 per BOE,  respectively,  resulting
from 110 percent and 166 percent relative  increases in VPP volume deliveries on
a BOE  basis,  for which the  Company  records  no sales  volumes  but bears all
associated  production  costs, (ii) general inflation of field service costs and
(iii)  increases in ad valorem taxes,  production  taxes and field utility costs
due to increases in commodity prices.

     The following  tables provide the components of the Company's total oil and
gas production  costs per BOE from  continuing  operations and total oil and gas
production  costs per BOE from continuing  operations by geographic area for the
three and six months ended June 30, 2006 and 2005:



                                                          Three months ended        Six months ended
                                                               June 30,                  June 30,
                                                         --------------------     --------------------
                                                           2006        2005         2006        2005
                                                         --------    --------     --------    --------
                                                                         (in thousands)
                                                                                  
       Lease operating expenses.......................   $   6.23    $   5.00     $   6.18    $   4.90
       Third-party transportation charges.............       1.20        1.19         1.21        1.03
       Taxes:
          Ad valorem..................................       1.50        1.15         1.36        1.08
          Production..................................       1.78        1.39         1.77        1.29
       Workover costs.................................        .74         .57          .73         .60
                                                          -------     -------      -------     -------
             Total production costs...................   $  11.45    $   9.30     $  11.25    $   8.90
                                                          =======     =======      =======     =======




                                                          Three months ended        Six months ended
                                                               June 30,                  June 30,
                                                         --------------------     --------------------
                                                           2006        2005         2006        2005
                                                         --------    --------     --------    --------
                                                                         (in thousands)
                                                                                  
          United States...............................   $  10.92    $   9.09     $  10.81    $   8.60
          Canada......................................   $  14.47    $  13.50     $  16.14    $  14.72
          Africa......................................   $  14.54    $   8.02     $  11.32    $   7.59
          Worldwide...................................   $  11.45    $   9.30     $  11.25    $   8.90


     Depletion,  depreciation and amortization expense. The Company's total DD&A
expense from continuing operations was $9.78 and $9.70 per BOE for the three and
six months ended June 30, 2006, respectively, as compared to $7.71 and $7.72 per
BOE  during  the  same  respective  periods  of  2005.  Depletion  expense  from
continuing  operations,  the largest  component of DD&A expense from  continuing
operations, was $9.17 and  $9.05 per BOE  during the three  and six months ended

                                       39




                        PIONEER NATURAL RESOURCES COMPANY


June 30, 2006, as compared to $7.14 and $7.20 per BOE during the same respective
periods in 2005.  The  increase in per BOE  depletion  expense  from  continuing
operations  during the three and six months ended June 30, 2006,  as compared to
the same  respective  periods  in 2005,  was  primarily  due to (i) a  generally
increasing  trend in the Company's oil and gas properties' cost bases per BOE of
proved and proved  developed  reserves,  (ii) the fourth  quarter 2005  downward
revisions of proved reserves in the Raton field, (iii) the  aforementioned  sale
of proved  reserves under VPP  agreements,  for which the Company removed proved
reserves with no corresponding  decrease in cost basis, (iv) $1.24 and $1.70 per
BOE increases in Tunisian depletion expense primarily associated with a 2005 and
2006 decrease in the Company's  working  interest in the Adam Concession and (v)
in  Canada,  the  Company  has been  limited  on the  amount of  proved  reserve
bookings,  primarily from its 2006 winter drilling  program in Chinchaga,  until
certain well  performance  data is obtained,  (vi) partially offset by $5.57 and
$2.81 per BOE decreases in South African  depletion due to 2005 and year-to-date
2006 positive reserve revisions attributable to well performance.

     The following  table  provides  depletion  expense per BOE from  continuing
operations by  geographic  area for the three and six months ended June 30, 2006
and 2005:



                                                          Three months ended        Six months ended
                                                               June 30,                  June 30,
                                                         --------------------     --------------------
                                                           2006        2005         2006        2005
                                                         --------    --------     --------    --------
                                                                         (in thousands)
                                                                                  
          United States...............................   $   8.79    $   6.66     $   8.76    $   6.66
          Canada......................................   $  16.70    $  11.72     $  14.63    $  12.07
          Africa......................................   $   4.57    $   7.63     $   6.54    $   8.20
          Worldwide...................................   $   9.17    $   7.14     $   9.05    $   7.20


     Exploration,  abandonments, geological and geophysical costs. The following
table provides the Company's  geological and geophysical costs,  exploratory dry
hole expense,  lease abandonments and other exploration  expense from continuing
operations by  geographic  area for the three and six months ended June 30, 2006
and 2005:



                                                                               Africa
                                                       United                   and
                                                       States     Canada       Other       Total
                                                     ---------   ---------   ---------   ---------
                                                                     (in thousands)
                                                                             
    Three months ended June 30, 2006:
      Geological and geophysical costs...........    $  11,962   $   2,458   $   9,564   $  23,984
      Exploratory dry holes......................       15,723         533         539      16,795
      Leasehold abandonments and other...........          650         189         -           839
                                                      --------    --------    --------    --------
                                                     $  28,335   $   3,180   $  10,103   $  41,618
                                                      ========    ========    ========    ========
    Three months ended June 30, 2005:
      Geological and geophysical costs...........    $  12,929   $   1,878   $  10,449   $  25,256
      Exploratory dry holes......................        9,178         565         943      10,686
      Leasehold abandonments and other...........        1,317         239         -         1,556
                                                      --------    --------    --------    --------
                                                     $  23,424   $   2,682   $  11,392   $  37,498
                                                      ========    ========    ========    ========
    Six months ended June 30, 2006:
      Geological and geophysical costs...........    $  32,622   $   2,804   $  20,013   $  55,439
      Exploratory dry holes......................       31,358       3,037      15,212      49,607
      Leasehold abandonments and other...........       42,636         755      17,823      61,214
                                                      --------    --------    --------    --------
                                                     $ 106,616   $   6,596   $  53,048   $ 166,260
                                                      ========    ========    ========    ========
    Six months ended June 30, 2005:
      Geological and geophysical costs...........    $  37,326   $   2,864   $  19,859   $  60,049
      Exploratory dry holes......................       11,442       3,229      12,499      27,170
      Leasehold abandonments and other...........        3,459         330         319       4,108
                                                      --------    --------    --------    --------
                                                     $  52,227   $   6,423   $  32,677   $  91,327
                                                      ========    ========    ========    ========




                                       40




                        PIONEER NATURAL RESOURCES COMPANY


     The  Company's   exploration  and   abandonment   expense  from  continuing
operations  during the second  quarter of 2006 was primarily  attributable  to a
charge of $12.9  million  associated  with  unsuccessful  wells in the Company's
winter  Alaskan  drilling  program.  Significant  components  of  the  Company's
exploration and abandonment expense from continuing  operations during the first
half of 2006 included (i) $33.4 million attributable to an unsuccessful well and
related impairment of acreage on the Company's Block 256 permit in Nigeria, (ii)
$21.6 million  associated with three  unsuccessful wells in the Company's winter
Alaskan drilling  program,  (iii) $6.7 million  attributable to the write-off of
the  Company's  Platypus  prospect  on the shelf of the Gulf of Mexico  and (iv)
various other  exploratory  wells. The United States leasehold  abandonments and
other  costs for the six months  ended  June 30,  2006  includes  a $42  million
increase in East Cameron  abandonment  obligations  that resulted from Hurricane
Rita damage.  During the first half of 2006, the Company completed and evaluated
213  exploration/extension  wells, 201 of which were  successfully  completed as
discoveries.  During the same respective  period in 2005, the Company  completed
and  evaluated 58  exploration/extension  wells,  44 of which were  successfully
completed as discoveries.

     General and administrative expense. General and administrative expense from
continuing operations for the three and six months ended June 30, 2006 was $29.5
million and $61.7 million,  respectively, as compared to $26.6 million and $54.1
million during the same respective periods in 2005. The increases in general and
administrative   expense  from  continuing  operations  were  primarily  due  to
increases in administrative  staff and  performance-related  compensation  costs
including the  amortization of restricted  stock awarded to officers,  directors
and employees.

     Interest  expense.  Interest  expense from continuing  operations was $22.8
million  and $59.3  million  for the three and six months  ended June 30,  2006,
respectively,  as  compared  to $29.4  million  and $62.1  million  for the same
respective periods in 2005. The weighted average interest rates on the Company's
indebtedness  for the three and six months  ended June 30, 2006,  including  the
effects of interest rate derivatives and capitalized  interest,  was 7.2 percent
and 6.7  percent,  respectively,  as compared to 6.4 percent and 6.2 percent for
each of the same  respective  periods in 2005. The decrease in interest  expense
from  continuing  operations  during the three months  ended June 30,  2006,  as
compared  to the  same  period  of 2005,  was  primarily  due to a $2.1  million
increase in interest  capitalized on the Company's Oooguruk  development project
in  Alaska  and  South  Coast  gas  project  in South  Africa,  reduced  average
borrowings  under  the  Company's  Credit  Agreement  primarily  as a result  of
proceeds from disposition of assets, partially offset by a $1.1 million decrease
in the  amortization  of interest  rate hedge  gains.  The  decrease in interest
expense from continuing operations during the six months ended June 30, 2006, as
compared  to the same  period  of 2005,  was  primarily  due to a $10.2  million
decrease in interest  incurred on senior notes,  resulting  from  redemptions of
higher  yielding  senior  notes  during  2005 and 2006  with  proceeds  from the
issuance of lower  yielding  senior  notes,  and a $2.6 million  increase in the
aforementioned capitalized interest. Partially offsetting these decreases were a
$6.1 million increase in interest incurred on Credit Agreement  borrowings and a
$4.2 million decrease in the amortization of interest rate hedge gains.

     Other expenses. Other expenses from continuing operations for the three and
six  months  ended  June  30,  2006  were  $11.8  million  and  $16.8   million,
respectively,  as  compared  to $15.7  million  and $24.6  million  for the same
respective  periods in 2005.  The  decrease in other  expenses  from  continuing
operations  for the three months  ended June 30,  2006,  as compared to the same
period of 2005, is primarily  attributable  to a $7.0 million  decrease in hedge
ineffectiveness,  partially  offset by a $3.4  million  increase  in  litigation
contingency accrual adjustments.  The decrease in other expenses from continuing
operations  during the six months ended June 30,  2006,  as compared to ths same
period of 2005, is primarily  attributable to a $20.3 million  decrease in hedge
ineffectiveness,  partially  offset by $6.4  million  of  mark-to-market  losses
associated with non-hedge  financial  instruments and a $3.8 million increase in
litigation contingency accrual adjustments.

     Income tax  provision.  The Company  recognized  income tax  provisions  on
continuing  operations of $50.2  million and $70.9 million  during the three and
six months ended June 30, 2006,  respectively,  as compared to $53.9 million and
$75.8 million for the same respective  periods in 2005. The Company's  effective
tax rate on continuing  operations  of 43.2 percent and 52.2 percent  during the
three  and six  months  ended  June 30,  2006,  respectively,  differs  from the
combined United States federal and state statutory rate of approximately 36.5
percent primarily due to:


                                       41




                        PIONEER NATURAL RESOURCES COMPANY


     o    foreign tax rates,
     o    adjustments to the  deferred tax liability  for changes in enacted tax
          laws and rates; during the three and six month periods  ended June 30,
          2006,  this primarily  related to a $12.9 million  increase associated
          with the Texas  margin tax and $9.6 million decrease due to reductions
          in Canadian tax rates,
     o    statutes in foreign jurisdictions that differ from those in the United
          States and
     o    expenses for  unsuccessful well costs and  associated acreage costs in
          foreign locations where the Company does not expect to  receive income
          tax benefits;  during the three and  six month periods  ended June 30,
          2006,  this primarily  related to  Nigerian  exploration  expenses  of
          approximately $1.8 million and $39.2 million, respectively.

     See Note D of Notes to Consolidated  Financial Statements included in "Item
1.  Financial  Statements"  for additional  information  regarding the Company's
income taxes, the Texas margin tax and changes in Canadian tax rates.


     Discontinued  operations.  During  2005  and  2006,  the  Company  sold its
interests in the following oil and gas assets and has reflected their results of
operations in discontinued operations:



       Country               Description of Assets              Date Divested
       -------               ---------------------              -------------
                                                       
       Canada                Martin Creek, Conroy Black         May 2005
                             and Lookout Butte fields

       United States         Two Gulf of Mexico                 August 2005
                             shelf fields

       United States         Deepwater Gulf of Mexico           March 2006
                             fields

       Argentina             Argentine assets                   April 2006


     The Company recognized income from discontinued operations of $22.2 million
and  $566.3  million  during  the  three and six  months  ended  June 30,  2006,
respectively,  as  compared to $163.3  million  and $220.3  million for the same
respective  periods  of 2005.  During the second  quarter of 2006,  the  Company
recognized a gain on the sale of Argentine assets of $5.7 million. The Company's
effective tax rate associated with discontinued  operations during the three and
six months ended June 30, 2006 was 26.9 percent and 34.6 percent, respectively.

Capital Commitments, Capital Resources and Liquidity

     Capital  commitments.   The  Company's  primary  needs  for  cash  are  for
development, exploration and acquisition of oil and gas properties, repayment of
contractual obligations and working capital obligations.  Funding for these cash
needs,  as well as  funding  for any  stock  repurchases  that the  Company  may
undertake, may be provided by any combination of internally-generated cash flow,
proceeds from the  disposition of nonstrategic  assets or alternative  financing
sources as discussed in "Capital resources" below.

     Oil and gas properties.  The Company's cash  expenditures  for additions to
oil and gas  properties  during  the three and six months  ended  June 30,  2006
totaled $309.5 million and $644.4 million,  respectively,  as compared to $245.7
million and $440.7 million for the same respective  periods of 2005.  During the
three and six  months  ended  June 30,  2006,  the  Company's  expenditures  for
additions  to oil and gas  properties  were funded by $158.2  million and $461.6
million,  respectively,  of net cash  provided  by  operating  activities  and a
portion of the $1.6 billion of net  proceeds  received in  conjunction  with the
sale of the  Company's  deepwater  Gulf of Mexico and  Argentine  assets (net of
payments to terminate derivative  instruments associated with the deepwater Gulf
of Mexico  assets).  During the three and six months  ended June 30,  2005,  the
Company's  expenditures  for additions to oil and gas properties were internally
funded by $309.9 million and $613.6 million,  respectively, of net cash provided
by operating activities.

     Contractual  obligations,  including  off-balance  sheet  obligations.  The
Company's  contractual  obligations  include  long-term debt,  operating leases,
drilling commitments, derivative obligations, other liabilities,  transportation

                                       42




                        PIONEER NATURAL RESOURCES COMPANY


commitments  and VPP  obligations.  From  time-to-time,  the Company enters into
off-balance  sheet  arrangements and transactions that can give rise to material
off-balance sheet obligations of the Company.  As of June 30, 2006, the material
off-balance  sheet  arrangements and  transactions  that the Company has entered
into included (i) undrawn letters of credit,  (ii) operating  lease  agreements,
(iii) drilling commitments,  (iv) VPP obligations (to physically deliver volumes
and pay related  lease  operating  expenses  in the future) and (v)  contractual
obligations  for  which  the  ultimate  settlement  amounts  are not  fixed  and
determinable  such as derivative  contracts that are sensitive to future changes
in  commodity  prices  and  gas  transportation  commitments.   Other  than  the
off-balance sheet arrangements described above, the Company has no transactions,
arrangements  or  other  relationships  with  unconsolidated  entities  or other
persons that are reasonably likely to materially affect the Company's  liquidity
or  availability of or requirements  for capital  resources.  Since December 31,
2005, the material changes in the Company's contractual obligations included (i)
a $900 million  reduction in outstanding  borrowings under the Credit Agreement,
(ii) an increase of  approximately  $410 million in the  Company's  drilling rig
commitments,  (iii) a $349 million decrease in derivative obligations and (iv) a
$36.8 million  increase in outstanding  undrawn letters of credit.  See "Item 3.
Quantitative  and  Qualitative  Disclosures  About  Market  Risk" for a table of
changes in the fair value of the Company's open derivative contract  liabilities
during the six months ended June 30, 2006.

     Environmental contingency. A subsidiary of the Company has been notified by
a letter  from the TCEQ  dated  August  24,  2005  that the TCEQ  considers  the
subsidiary to be a potentially  responsible party with respect to the Dorchester
Refining  Company State  Superfund Site located in Mount  Pleasant,  Texas.  The
subsidiary,  which was acquired by the Company in 1991, owned a refinery located
at the Mount  Pleasant  site from 1977 until 1984.  According to the TCEQ,  this
refinery  was  responsible  for  releases  of  hazardous   substances  into  the
environment.  The  Company  does not know the nature  and extent of the  alleged
contamination,  the potential costs of remediation,  or the portion,  if any, of
such costs that may be allocable to the Company's subsidiary.  However, based on
the limited information  currently available and assessed regarding this matter,
the  Company  has no reason to  believe  that the  matter  will have a  material
adverse  effect on its future  financial  condition,  results of  operations  or
liquidity.  See Note I of Notes to Consolidated Financial Statements included in
"Item 1. Financial Statements" for additional  information regarding this matter
as well as other environmental and legal contingencies involving the Company.

     Capital  resources.  The Company's  primary capital  resources are net cash
provided  by  operating  activities,  proceeds  from  financing  activities  and
proceeds from sales of nonstrategic  assets.  During the next twelve months, the
Company  anticipates  that net cash  provided by  operating  activities  will be
insufficient  to fund its capital  commitments;  however,  net cash  provided by
operating  activities combined with proceeds from financing activities and sales
of nonstrategic assets are expected to be sufficient to fund capital commitments
during the foreseeable future.

     Asset  divestitures.  During  March  2006,  the  Company  sold  all  of its
interests in certain oil and gas  properties in the deepwater Gulf of Mexico for
net proceeds of $1.2 billion,  resulting in a pretax gain of $727.1 million. The
proceeds were reduced by $193.2 million of net payments to terminate  derivative
instruments  associated  with the deepwater Gulf of Mexico assets.  During April
2006, the Company sold its Argentine  assets for net proceeds of $664.6 million,
resulting  in a  gain  of  $5.7  million.  The  net  cash  proceeds  from  these
divestitures  were  used to reduce  outstanding  indebtedness  under the  Credit
Agreement and for general corporate purposes.

     Operating activities.  Net cash provided by operating activities during the
three and six months ended June 30, 2006 was $158.2 million and $461.6  million,
respectively,  as  compared to $309.9  million  and $613.6  million for the same
respective  periods in 2005.  The  decreases  were  primarily  due to operations
discontinued  in 2005 and 2006,  partially  offset by  increases  in oil and gas
sales from continuing operations.  As a result of the sale of the deepwater Gulf
of Mexico assets,  the Company utilized all of its available United States NOLs,
other than those subject to limitations.  The use of the available United States
NOLs has accelerated the Company's payment of cash taxes.

     Investing activities.  Net cash provided by investing activities during the
three and six months ended June 30, 2006 was $343.5 million and $965.3  million,
respectively,  as  compared to $266.1  million  and $659.2  million for the same
respective  periods of 2005.  The  increases  in net cash  provided by investing
activities was primarily due to $158.9  million and $522.0 million  increases in
proceeds from  disposition of assets,  respectively,  partially  offset by $63.8
million and $203.7  million  increases in  additions to oil and gas  properties,
respectively.


                                       43




                        PIONEER NATURAL RESOURCES COMPANY



     Financing  activities.  Net cash used in  financing  activities  during the
three and six months ended June 30, 2006 was $89.9  million and $990.4  million,
as  compared  to $536.2  million  and $1.2  billion  during the same  respective
periods in 2005.

     During February 2006, the Board declared a semiannual  dividend of $.12 per
common share,  payable on April 12, 2006 to  shareholders of record on March 29,
2006.  Associated  therewith,  the  Company  paid  $15.5  million  of  aggregate
dividends  during April 2006.  Future  dividends  are at the  discretion  of the
Board,  and the Board may change the  current  dividend  amount in the future if
warranted by future liquidity and capital resource attributes.

     During  August  2005,  the  Board  approved  a  share  repurchase   program
authorizing the purchase of up to $1 billion of the Company's common stock, $641
million of which was completed in 2005.  Purchase of the remaining  $359 million
of the  authorization  was initiated in mid-May  2006.  During the three and six
months ended June 30, 2006, the Company  expended  $170.5 million to acquire 4.3
million  shares of  treasury  stock and $172.4  million to acquire  4.4  million
shares of treasury  stock,  respectively,  of which $170  million in each period
were repurchased pursuant to the repurchase program.

     During May 2006,  the Company  issued $450  million of 6.875% Notes for net
proceeds of $447.4  million.  The Company used the net proceeds  from the 6.875%
Notes to repurchase  $346.2 million of its 6.50% Notes and for general corporate
purposes.

     During June 2006, holders of $2 million of the Company's  Convertible Notes
exercised their conversion rights.  Associated therewith,  the Company paid $1.6
million in cash,  issued  46,540  shares and recorded a $.4 million  increase to
stockholders'  equity.  During July 2006,  holders  converted an additional  $71
million of the Convertible Notes.  Associated therewith,  the Company paid $56.7
million in cash, issued 1.7 million shares and recorded a $14.3 million increase
to stockholders'  equity during the third quarter of 2006.  During the remainder
of 2006, the Company expects that the remaining $27 million of Convertible Notes
will be converted by the holders or redeemed by the Company.

     The Company's financing  activities through June 30, 2006 had the effect of
extending  the  maturities  of  the  Company's   long-term  debt  and  minimally
increasing the Company's  future  weighted  average  interest rate on fixed rate
debt.

     As the Company  pursues its  strategy,  it may  utilize  various  financing
sources,  including  fixed  and  floating  rate  debt,  convertible  securities,
preferred  stock or common  stock.  The  Company  may also issue  securities  in
exchange for oil and gas  properties,  stock or other interests in other oil and
gas  companies  or  related  assets.  Additional  securities  may be of a  class
preferred  to common  stock  with  respect  to such  matters  as  dividends  and
liquidation  rights and may also have other rights and preferences as determined
by the Board.

     Liquidity.  The Company's principal source of short-term  liquidity is cash
on hand and unused  borrowing  capacity on the Credit  Agreement.  There were no
outstanding  borrowings  under the Credit  Agreement as of June 30, 2006.  After
deducting $119.6 million of undrawn and outstanding  letters of credit under the
Credit Agreement,  the Company had $1.4 billion of unused borrowing  capacity as
of June 30, 2006. In the future, to the extent that Pioneer's  liquidity results
in cash in  excess  of  immediate  capital  needs,  the  Company  may  invest in
short-term cash equivalent securities.

     Debt  ratings.  The Company  receives  debt credit  ratings from Standard &
Poor's Ratings  Group,  Inc.  ("S&P") and Moody's,  which are subject to regular
reviews.  During the fourth  quarter of 2005,  S&P cut the  Company's  corporate
credit  rating to BB+ with a stable  outlook  from BBB-.  During  January  2006,
Moody's cut the Company's corporate credit rating to Ba1 with a negative outlook
from Baa3. S&P and Moody's  consider many factors in  determining  the Company's
ratings including:  production growth opportunities,  liquidity, debt levels and
asset and reserve mix. As a result of the downgrades, the interest rate and fees
the Company pays on the Credit  Agreement  have  increased and  additional  debt
covenant  requirements  under the Credit  Agreement were  triggered.  During the
first  half of 2006,  as a result  of the  Company's  downgrades  by the  rating
agencies,  the Company  issued $52 million of additional  letters of credits and
expects  to issue  approximately  $74  million of  additional  letters of credit
pursuant  to  agreements  that  contain  provisions  with rating  triggers.  The
downgrades  are not  expected  to  materially  affect  the  Company's  financial


                                       44




                        PIONEER NATURAL RESOURCES COMPANY


position or liquidity,  but could  negatively  impact the  Company's  ability to
obtain  additional  financing or the interest rate and fees associated with such
additional financing.

     Book capitalization and current ratio. The Company's book capitalization at
June  30,  2006  was  $4.2  billion,  consisting  of debt of  $1.3  billion  and
stockholders' equity of $2.9 billion.  Consequently,  the Company's debt to book
capitalization  decreased  to 30  percent  at June 30,  2006 from 48  percent at
December 31, 2005. The Company's ratio of current assets to current  liabilities
was 1.02 to 1.00 at June 30, 2006 as  compared  to .60 to 1.00 at  December  31,
2005.  The  improvement  in the  Company's  ratio of  current  assets to current
liabilities  was  primarily due to an increase in cash and cash  equivalents  of
$438.2  million due to proceeds  received from the deepwater  Gulf of Mexico and
Argentine divestitures.


                                       45




                        PIONEER NATURAL RESOURCES COMPANY


Item 3.     Quantitative and Qualitative Disclosures About Market Risk

     The following  quantitative and qualitative  disclosures  about market risk
are  supplementary to the quantitative and qualitative  disclosures  provided in
the Company's  Annual Report on Form 10-K for the year ended  December 31, 2005.
As such, the information contained herein should be read in conjunction with the
related  disclosures  in the  Company's  Annual Report on Form 10-K for the year
ended December 31, 2005.

     Although certain derivative contracts to which the Company has been a party
did not qualify as hedges,  the Company does not enter into  derivative or other
financial instruments for trading purposes.

     The following table reconciles the changes that occurred in the fair values
of the Company's open derivative contracts during the first half of 2006:



                                                         Derivative Contract Net Liabilities
                                                  -------------------------------------------------
                                                                 Foreign
                                                                 Exchange    Interest
                                                  Commodities      Rate        Rate        Total
                                                  -----------    --------    --------    ----------
                                                                   (in thousands)
                                                                             
     Fair value of contracts outstanding
        as of December 31, 2005...............    $ (748,477)    $    -      $    -      $ (748,477)
     Changes in contract fair values (a)......        61,807          161       1,349        63,317
     Contract maturities......................        91,138         (161)        -          90,977
     Contract terminations....................       196,246          -        (1,349)      194,897
                                                   ---------      -------     -------     ---------
     Fair value of contracts outstanding
        as of June 30, 2006...................    $ (399,286)    $    -      $    -      $ (399,286)
                                                   =========      =======     =======     =========
<FN>
- ---------------
(a)  At  inception,  derivative  contracts  entered  into by the Company have no
     intrinsic value.
</FN>


     Foreign  exchange  rate  sensitivity.  From  time to  time,  the  Company's
Canadian  subsidiary  enters into  short-term  forward  currency  agreements  to
purchase Canadian dollars with U.S. dollar gas sales proceeds.  The Company does
not designate these derivatives as hedges due to their short-term nature.  There
were no outstanding forward currency agreements at June 30, 2006 or December 31,
2005.

     Interest  rate  sensitivity.  During April 2006,  the Company  entered into
costless  collar  contracts  to hedge the coupon  rate on the  Company's  6.875%
Notes,  which were issued on May 1, 2006. The Company  terminated these costless
collar  contracts  for $1.3  million of deferred  gains.  See Note E of Notes to
Consolidated Financial Statements included in "Item 1. Financial Statements" and
Capital  Commitments,  Capital  Resources  and  Liquidity  included  in "Item 2.
Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations" for additional information regarding these debt transactions.



                                       46




                        PIONEER NATURAL RESOURCES COMPANY


     The following table provides information about other financial  instruments
to which the Company was a party as of June 30, 2006 and that are  sensitive  to
changes in interest rates. For debt obligations,  the table presents  maturities
by expected  maturity dates,  the weighted average interest rates expected to be
paid on the debt given current  contractual  terms and market conditions and the
debt's  estimated fair value. For fixed rate debt, the weighted average interest
rate  represents the  contractual  fixed rates that the Company was obligated to
periodically  pay on the debt as of June 30,  2006.  As of June  30,  2006,  the
Company  was not a party  to  material  derivatives  that  would  subject  it to
interest rate sensitivity.

                            Interest Rate Sensitivity
                      Debt Obligations as of June 30, 2006



                               Six months                                                                             Liability
                                 ending                Year ending December 31,                                     Fair Value at
                               December 31,   -----------------------------------------                                June 30,
                                  2006          2007       2008       2009       2010     Thereafter      Total         2006
                               ------------   --------   --------   --------   --------   ----------   ----------   -------------
                                                                     ($ in thousands)
                                                                                            
Total Debt:
  Fixed rate principal
   maturities (a)............   $    -        $ 32,075   $  3,777   $     -    $     -    $1,330,985   $1,366,837    $1,354,993
    Weighted average
      interest rate (%)......      6.45           6.43       6.40       6.40       6.40         6.40
<FN>
- -------------
(a)  Represents  maturities  of principal  amounts  excluding  (i) debt issuance
     discounts and premiums and (ii) net deferred fair value hedge losses.
</FN>


     Commodity price sensitivity. The following table provides information about
the Company's oil and gas derivative  financial  instruments that were sensitive
to changes in oil or gas price as of June 30,  2006.  As of June 30,  2006,  the
Company  was a party to one gas index  basis  swap that is not  designated  as a
hedge  and  which  represented  a $130  thousand  asset.  Otherwise,  all of the
Company's oil and gas derivative financial instruments qualified as hedges.

     See Note F of Notes to Consolidated  Financial Statements included in "Item
1. Financial  Statements" for  information  regarding the terms of the Company's
derivative  financial  instruments  that are  sensitive to changes in oil or gas
prices as well as hedge volumes and weighted average prices by calendar quarter.

                          Oil and Gas Price Sensitivity
              Derivative Financial Instruments as of June 30, 2006




                                                   Six months       Year ending        Asset (Liability)
                                                     ending         December 31,         Fair Value at
                                                  December 31,   -------------------        June 30
                                                      2006         2007       2008            2006
                                                  ------------   --------   --------   ----------------
                                                                                        (in thousands)
                                                                           
Oil Hedge Derivatives:
  Average daily notional Bbl volumes:
   Swap contracts.............................          5,000      10,000     10,000      $(332,208)
    Weighted average fixed price per Bbl......      $   37.20    $  30.96   $  30.62
   Collar contracts...........................          6,500       2,000        -        $ (22,424)
    Weighted average ceiling price per Bbl....      $   66.41    $  89.50   $    -
    Weighted average floor price per Bbl......      $   41.92    $  50.00   $    -
   Average forward NYMEX oil prices (a).......      $   74.67    $  77.00   $  75.54

Gas Hedge Derivatives (b):
  Average daily notional MMBtu volumes (c):
   Swap contracts.............................         73,932      59,195        -        $ (61,802)
    Weighted average fixed price per MMBtu....      $    4.31    $   7.06   $    -
   Collar contracts...........................         90,000      30,000        -        $  17,148
    Weighted average ceiling price per MMBtu..      $   14.38    $  11.02   $    -
    Weighted average floor price per MMBtu....      $    6.56    $   6.50   $    -
   Average forward NYMEX gas prices (a).......      $    8.61    $   9.64   $    -

                                       47




                        PIONEER NATURAL RESOURCES COMPANY


<FN>
- ---------------
(a)  The  average  forward  NYMEX oil and gas prices are based on July 31,  2006
     market quotes.
(b)  To minimize  basis risk,  the Company enters into basis swaps for a portion
     of its gas hedges to convert the index price of the hedging instrument from
     a NYMEX index to an index which reflects the geographic area of production.
     The Company  considers these basis swaps as part of the associated swap and
     collar contracts and, accordingly, the effects of the basis swaps have been
     presented together with the associated contracts.
(c)  Subsequent to June 30, 2006 through August 1, 2006, the Company (i) reduced
     its gas  hedge  position  by  terminating  gas  collar  contracts  that are
     included in the table above by 30,000 MMBtu per day of forecasted  2007 gas
     sales at a  weighted  average  ceiling  price  per  MMBtu of  $11.02  and a
     weighted  average floor price per MMBtu of $6.50 and (ii) increased its gas
     hedge position by entering into gas swap contracts for 15,000 MMBtu per day
     of forecasted 2008 gas sales at a weighted average price per MMBtu of $8.62
     (Panhandle Eastern Pipeline Oklahoma (mainline) index price).
</FN>


Item 4.     Controls and Procedures

     Evaluation of disclosure controls and procedures. The Company's management,
with  the  participation  of  its  principal  executive  officer  and  principal
financial  officer,  have  evaluated,  as required by Rule  13a-15(b)  under the
Exchange Act, the Company's  disclosure  controls and  procedures (as defined in
Exchange Act Rule 13a-15(e)) as of the end of the period covered by this Report.
Based  on  that  evaluation,  the  principal  executive  officer  and  principal
financial  officer  concluded  that the design and  operation  of the  Company's
disclosure  controls and procedures  are effective in ensuring that  information
required to be  disclosed by the Company in the reports that it files or submits
under the Exchange Act is recorded,  processed,  summarized and reported  within
the time periods specified in the SEC's rules and forms.

     Changes in internal  control over financial  reporting.  There have been no
changes in the Company's  internal control over financial  reporting (as defined
in Rule  13a-15(f)  under the Exchange Act) that  occurred  during the Company's
last fiscal quarter that have  materially  affected or are reasonably  likely to
materially affect the Company's internal control over financial reporting.



                                       48




                        PIONEER NATURAL RESOURCES COMPANY



                           PART II. OTHER INFORMATION

Item 1.     Legal Proceedings

     The  Company is party to the legal  proceedings  that are  described  under
"Legal actions" in Note I of Notes to Consolidated Financial Statements included
in  "Item  1.  Financial  Statements".  The  Company  is  also  party  to  other
proceedings and claims  incidental to its business.  While many of these matters
involve  inherent  uncertainty,  the  Company  believes  that the  amount of the
liability,  if any,  ultimately  incurred with respect to such other proceedings
and claims will not have a material adverse effect on the Company's consolidated
financial  position as a whole or on its liquidity,  capital resources or future
annual results of operations.

Item 1A.    Risk Factors

     In addition to the other  information set forth in this report,  you should
carefully  consider the risks  discussed in the Company's  Annual Report on Form
10-K  under  the  headings  "Item  1.  Business  -   Competition,   Markets  and
Regulations", "Item 1A. Risk Factors" and "Item 7A. Quantitative and Qualitative
Disclosures  About  Market  Risk",  which  risks  could  materially  affect  the
Company's  business,  financial  condition or future results.  There has been no
material change in the Company's risk factors from those described in the Annual
Report on Form  10-K.  These  risks are not the only risks  facing the  Company.
Additional risks and uncertainties not currently known to the Company or that it
currently  deems to be  immaterial  also may  materially  adversely  affect  the
Company's business, financial condition or future results.



                                       49




                        PIONEER NATURAL RESOURCES COMPANY


Item 2.     Unregistered Sales of Equity Securities and Use of Proceeds

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

     The following  table  summarizes the Company's  purchases of treasury stock
during the three months ended June 30, 2006:



                                                                  Total Number of Shares    Approximate Dollar
                                                                   (or Units) Purchased      Amount of Shares
                           Total Number of      Average Price       as Part of Publicly      that May Yet Be
                           Shares (or Units)    Paid per Share        Announced Plans         Purchased under
Period                        Purchased (a)       (or Unit)             or Programs         Plans or Programs
- ------                     -----------------    --------------    ----------------------    ------------------

                                                                                
April 2006...............          12,797           $  42.89                    -
May 2006.................       2,335,603           $  39.98              2,333,900
June 2006................       1,991,182           $  38.44              1,989,400
                              -----------                               -----------
        Total............       4,339,582           $  39.28              4,323,300            $189,531,202
                              ===========                               ===========             ===========
<FN>
- -----------
(a)  Amounts  include shares  withheld to satisfy tax  withholding on employees'
     stock awards for which restrictions have lapsed.
</FN>


     During  August  2005,  the  Board  approved  a  share  repurchase   program
authorizing the purchase of up to $1 billion of the Company's common stock, $641
million of which was  completed  in 2005.  An  additional  $170 million has been
completed through June 30, 2006.

Item 4.     Submission of Matters to a Vote of Security Holders

     The Company's  annual  meeting of  stockholders  was held on May 3, 2006 in
Irving,  Texas.  At the meeting,  three  proposals  were  submitted  for vote of
stockholders  (as  described in the  Company's  Proxy  Statement  dated April 3,
2006). The following is a brief  description of each proposal and results of the
stockholders' votes.

     Election of Directors.  Prior to the meeting,  the Board  designated  three
nominees as Class III directors with their terms to expire at the annual meeting
in 2009 when their  successors  are elected and  qualified.  Messrs.  Lundquist,
Ramsey and Solberg were, at the time of such  nomination  and at the time of the
meeting, directors of the Company. Each nominee was elected as a director of the
Company, with the results of the stockholder voting being as follows:



                                                Authority                  Broker
                                      For       Withheld     Abstain     Non-Votes
                                 -----------    ---------    -------     ---------
                                                             
       Andrew D. Lundquist       107,016,784    6,611,899       -            -
       Charles E. Ramsey, Jr.    107,217,818    6,410,865       -            -
       Robert A. Solberg         107,654,834    5,973,849       -            -


     In addition, the term of office for the following directors continued after
May 3, 2006: James R. Baroffio,  Edison C. Buchanan, R. Hartwell Gardner,  Linda
K. Lawson, Frank A. Risch, Mark S. Sexton, Scott D. Sheffield and Jim A. Watson.

     Ratification of selection of independent auditors.  The engagement of Ernst
& Young LLP as the Company's  independent auditors for 2006 was submitted to the
stockholders for ratification.  Such election was ratified,  with the results of
the stockholder voting being as follows:


                                  
            For                         111,291,255
            Against                         896,703
            Abstain                       1,440,725
            Broker non-votes                    -




                                       50




                        PIONEER NATURAL RESOURCES COMPANY


Adoption  of the  2006  long-term  incentive  plan.  The  adoption  of the  2006
long-term  incentive plan was submitted to the stockholders  for approval.  Such
adoption  was  approved,  with the results of the  stockholder  voting  being as
follows:


                                  
            For                         81,363,336
            Against                      8,495,954
            Abstain                      1,933,759
            Broker non-votes                   -


Item 6.     Exhibits

Exhibits

  4.1       Amendment  No. 1 to  Rights  Agreement,  dated as of  May 22,  2006,
            between the  Company and  Continental Stock Transfer & Trust Company
            (incorporated by reference to  Exhibit 4.2 to the  Company's Current
            Report on Form 8-K,  File No. 1-13245, filed with the SEC on May 23,
            2006).
 31.1 (a)   Chief Executive Officer certification under Section 302 of Sarbanes-
            Oxley Act of 2002.
 31.2 (a)   Chief Financial Officer certification under Section 302 of Sarbanes-
            Oxley Act of 2002.
 32.1 (b)   Chief Executive Officer certification under Section 906 of Sarbanes-
            Oxley Act of 2002.
 32.2 (b)   Chief Financial Officer certification under Section 906 of Sarbanes-
            Oxley Act of 2002.
 10.1       Pioneer Natural Resources  Company  2006  Long-Term  Incentive  Plan
            (incorporated by reference to  Exhibit 10.1 to the Company's Current
            Report on Form 8-K,  File No. 1-13245,  filed with the SEC on May 9,
            2006).
 10.2       Form of  restricted  stock unit  Award  Agreement  for  non-employee
            directors,   together  with  a  schedule  identifying  substantially
            identical  agreements  between  the  Company  and each  of  its non-
            employee directors  identified on  the schedule and  identifying the
            material differences between  each of those agreements and the filed
            Award Agreement  (incorporated by  reference to  Exhibit 10.2 to the
            Company's Current Report on Form 8-K,  File No. 1-13245,  filed with
            the SEC on May 9, 2006).
- ---------------
(a) Filed herewith.
(b) Furnished herewith.



                                       51




                        PIONEER NATURAL RESOURCES COMPANY



                                   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 hereto duly authorized.

                                             PIONEER NATURAL RESOURCES COMPANY



Date:   August 7, 2006                By:       /s/ Richard P. Dealy
                                             ----------------------------------
                                             Richard P. Dealy
                                             Executive Vice President and Chief
                                             Financial Officer



Date:   August 7, 2006                By:       /s/ Darin G. Holderness
                                             ----------------------------------
                                             Darin G. Holderness
                                             Vice President and Chief
                                             Accounting Officer



                                       52




                        PIONEER NATURAL RESOURCES COMPANY


Exhibit Index

  4.1       Amendment  No. 1 to  Rights  Agreement,  dated as of  May 22,  2006,
            between the  Company and  Continental Stock Transfer & Trust Company
            (incorporated by reference to  Exhibit 4.2 to the  Company's Current
            Report on Form 8-K,  File No. 1-13245, filed with the SEC on May 23,
            2006).
 31.1 (a)   Chief Executive Officer certification under Section 302 of Sarbanes-
            Oxley Act of 2002.
 31.2 (a)   Chief Financial Officer certification under Section 302 of Sarbanes-
            Oxley Act of 2002.
 32.1 (b)   Chief Executive Officer certification under Section 906 of Sarbanes-
            Oxley Act of 2002.
 32.2 (b)   Chief Financial Officer certification under Section 906 of Sarbanes-
            Oxley Act of 2002.
 10.1       Pioneer Natural Resources  Company  2006  Long-Term  Incentive  Plan
            (incorporated by reference to  Exhibit 10.1 to the Company's Current
            Report on Form 8-K,  File No. 1-13245,  filed with the SEC on May 9,
            2006).
 10.2       Form of  restricted  stock unit  Award  Agreement  for  non-employee
            directors,   together  with  a  schedule  identifying  substantially
            identical  agreements  between  the  Company  and each  of  its non-
            employee directors  identified on  the schedule and  identifying the
            material differences between  each of those agreements and the filed
            Award Agreement  (incorporated by  reference to  Exhibit 10.2 to the
            Company's Current Report on Form 8-K,  File No. 1-13245,  filed with
            the SEC on May 9, 2006).
- ---------------
(a) Filed herewith.
(b) Furnished herewith.



                                       53