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 September 30, 2001

                                       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 No. 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 Number)

5205 N. O'Connor Blvd., Suite 1400, Irving, Texas             75039
-------------------------------------------------          -----------
    (Address of principal executive offices)                (Zip code)

       Registrant's Telephone Number, including area code : (972) 444-9001

                                 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 / /

Number of shares of Common Stock outstanding as of October 23, 2001.. 98,167,735











          Definitions of Oil and Gas Terms and Conventions Used Herein

       Within this report,  the following oil and gas terms and conventions have
these  specific  meanings:  "Bbl" means a standard  barrel  containing 42 United
States  gallons;  "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;  "Btu" means British thermal unit and is an energy equivalent  measure of
natural  gas;  "MBbl" means one thousand  Bbls;  "MBOE" means one thousand  BOE;
"Mcf"  means one  thousand  cubic feet and is a measure of natural  gas  volume;
"MMcf" means one million  cubic feet;  "NGL" means  natural gas liquid;  "NYMEX"
means The New York Mercantile  Exchange;  "proved  reserves" means 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 power 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.

       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 NGL.

       Unless  otherwise  specified,  wells,   acreage  and  drilling  locations
referred  to  in  this  report  represent  gross  wells,  acreage  and  drilling
locations.  All dollar  amounts  quoted  herein are  expressed in United  States
dollars.

                                        2





                        PIONEER NATURAL RESOURCES COMPANY


                                TABLE OF CONTENTS




                                                                           Page

                          PART I. FINANCIAL INFORMATION

Item 1.   Financial Statements

          Consolidated Balance Sheets as of September 30, 2001 and
             December 31, 2000...........................................    4

          Consolidated Statements of Operations for the three and nine
            months ended September 30, 2001 and 2000.....................    5

          Consolidated Statement of Stockholders' Equity for the nine
            months ended September 30, 2001..............................    6

          Consolidated Statements of Cash Flows for the three and nine
            months ended September 30, 2001 and 2000.....................    7

          Consolidated Statements of Comprehensive Income for the three
            and nine months ended September 30, 2001 and 2000............    8

          Notes to Consolidated Financial Statements.....................    9

Item 2.   Management's Discussion and Analysis of Financial
            Condition and Results of Operations..........................   22

Item 3.   Quantitative and Qualitative Disclosures About Market Risk.....   33


                           PART II. OTHER INFORMATION

Item 1.   Legal Proceedings..............................................   36

Item 6.   Exhibits and Reports on Form 8-K...............................   36

          Signatures.....................................................   37



                                        3





                          PART I. FINANCIAL INFORMATION

Item 1.     Financial Statements

                        PIONEER NATURAL RESOURCES COMPANY

                           CONSOLIDATED BALANCE SHEETS
                        (in thousands, except share data)


                                                                     September 30,   December 31,
                                                                         2001            2000
                                                                     ------------    -----------
                                 ASSETS
                                                                               
Current assets:
  Cash and cash equivalents........................................   $    20,737    $    26,159
  Accounts receivable:
     Trade, net....................................................        90,389        123,497
     Affiliates....................................................         3,234          2,157
  Inventories......................................................        17,863         14,842
  Deferred income taxes............................................         5,600          4,800
  Other current assets:
     Derivatives...................................................       114,163         11,391
     Other.........................................................         9,095          8,545
                                                                       ----------     ----------
       Total current assets........................................       261,081        191,391
                                                                       ----------     ----------
Property, plant and equipment, at cost:
  Oil and gas properties, using the successful efforts
    method of accounting:
     Proved properties.............................................     3,499,104      3,187,889
     Unproved properties...........................................       205,763        229,205
  Accumulated depletion, depreciation and amortization.............    (1,057,758)      (902,139)
                                                                       ----------     ----------
                                                                        2,647,109      2,514,955
                                                                       ----------     ----------
Deferred income taxes..............................................        83,611         84,400
Other property and equipment, net..................................        21,011         25,624
Other assets, net..................................................       166,975        138,065
                                                                       ----------     ----------
                                                                      $ 3,179,787    $ 2,954,435
                                                                       ==========     ==========
                     LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable:
     Trade.........................................................   $   116,042    $    96,646
     Affiliates....................................................         4,557          5,629
  Interest payable.................................................        38,430         38,142
  Other current liabilities:
     Derivatives...................................................        36,447         24,957
     Other.........................................................        51,346         51,140
                                                                       ----------     ----------
       Total current liabilities...................................       246,822        216,514
                                                                       ----------     ----------
Long-term debt.....................................................     1,554,552      1,578,776
Other noncurrent liabilities.......................................       169,310        225,740
Deferred income taxes..............................................        24,973         28,500
Stockholders' equity:
  Preferred stock, $.01 par value; 100,000,000 shares authorized;
     one share issued and outstanding..............................           -              -
  Common stock, $.01 par value; 500,000,000 shares authorized;
     101,738,910 and 101,268,754 shares issued as of September 30,
     2001 and December 31, 2000, respectively......................         1,017          1,013
  Additional paid-in capital.......................................     2,358,035      2,352,608
  Treasury stock, at cost; 3,571,175 and 2,853,107 shares as of
     September 30, 2001 and December 31, 2000, respectively........       (49,178)       (37,682)
  Accumulated deficit..............................................    (1,302,201)    (1,422,703)
  Accumulated other comprehensive income:
     Deferred hedge gains and losses, net..........................       182,691            -
     Unrealized gain on available for sale securities..............           -            8,154
     Cumulative translation adjustment.............................        (6,234)         3,515
                                                                       ----------     ----------
       Total stockholders' equity..................................     1,184,130        904,905
Commitments and contingencies......................................
                                                                       ----------     ----------
                                                                      $ 3,179,787    $ 2,954,435
                                                                       ==========     ==========


           The financial information included as of September 30, 2001
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 STATEMENTS OF OPERATIONS
                      (in thousands, except per share data)
                                   (Unaudited)




                                                        Three months ended     Nine months ended
                                                           September 30,          September 30,
                                                      ---------------------   ---------------------
                                                        2001        2000        2001        2000
                                                      ---------   ---------   ---------   ---------
                                                                              
Revenues:
  Oil and gas......................................   $ 198,088   $ 228,587   $ 674,685   $ 600,909
  Interest and other...............................       6,471       5,200      22,593      14,141
  Gain (loss) on disposition of assets, net........         (88)     24,158       8,677      27,751
                                                       --------    --------    --------    --------
                                                        204,471     257,945     705,955     642,801
                                                       --------    --------    --------    --------
Costs and expenses:
  Oil and gas production...........................      51,713      49,728     159,489     135,990
  Depletion, depreciation and amortization.........      60,065      56,572     169,622     162,029
  Exploration and abandonments.....................      24,666      23,431      94,132      64,202
  General and administrative.......................       8,153       6,537      26,606      23,259
  Interest.........................................      32,261      40,794     102,137     122,412
  Other............................................       2,006      15,495      29,097      60,394
                                                       --------    --------    --------    --------
                                                        178,864     192,557     581,083     568,286
                                                       --------    --------    --------    --------
Income before income taxes and extraordinary item..      25,607      65,388     124,872      74,515
Income tax (provision) benefit.....................      (2,379)      3,900      (5,387)      5,800
                                                       --------    --------    --------    --------
Income before extraordinary item...................      23,228      69,288     119,485      80,315
Extraordinary item - gain (loss) on early
  extinguishment of debt, net of tax...............       1,374         -         1,374     (12,318)
                                                       -------     --------    --------    --------
Net income.........................................   $  24,602   $  69,288   $ 120,859   $  67,997
                                                       ========    ========    ========    ========
Net income per share:
  Basic:
     Income before extraordinary item..............   $     .24   $     .70   $    1.22   $     .80
     Extraordinary item............................         .01         -           .01        (.12)
                                                       --------    --------    --------    --------
       Net income..................................   $     .25   $     .70   $    1.23   $     .68
                                                       ========    ========    ========    ========
  Diluted:
     Income before extraordinary item..............   $     .24   $     .69   $    1.20   $     .80
     Extraordinary item............................         .01         -           .01        (.12)
                                                       --------    --------    --------    --------
       Net income..................................   $     .25   $     .69   $    1.21   $     .68
                                                       ========    ========    ========    ========
Weighted average basic shares outstanding:
     Basic.........................................      98,468      99,312      98,395      99,718
                                                       ========    ========    ========    ========
     Diluted.......................................      99,523      99,804      99,646     100,052
                                                       ========    ========    ========    ========



         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.

                                        5





                        PIONEER NATURAL RESOURCES COMPANY

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


                                                                                             Accumulated Other
                                                                                           Comprehensive Income
                                                                                     --------------------------------
                               Common                                                Deferred
                               Stock              Additional                          Hedge    Investment                 Total
                               Shares     Common   Paid-in    Treasury  Accumulated   Gains &    Gains &  Translation  Stockholders'
                             Outstanding  Stock    Capital      Stock     Deficit     Losses     Losses    Adjustment     Equity
                             -----------  ------  ----------  --------  -----------  --------  ---------  -----------  ------------

                                                                                            
Balance as of January 1,
 2001........................   98,416    $1,013  $2,352,608  $(37,682) $(1,422,703) $     -    $  8,154    $  3,515     $  904,905

 Exercise of stock options
  and employee stock
  purchases..................      582         4       5,427     1,536         (357)       -         -           -            6,610
 Treasury stock purchases....     (830)      -           -     (13,032)         -          -         -           -          (13,032)
 Net income..................      -         -           -         -        120,859        -         -           -          120,859
 Other comprehensive income
  (loss):
    Deferred hedge gains and
     losses:
     Transition adjustment...      -         -           -         -            -     (197,444)      -           -         (197,444)
     Deferred hedge gains....      -         -           -         -            -      343,080       -           -          343,080
     Net losses included in
      net income.............      -         -           -         -            -       37,055       -           -           37,055
   Gains and losses on
     available for sale
     securities:
      Unrealized holding
       losses................      -         -           -         -            -          -         (45)        -              (45)
      Gains included in net
       income................      -         -           -         -            -          -      (8,109)        -           (8,109)
   Translation adjustment....      -         -           -         -            -          -         -        (9,749)        (9,749)
                              --------    ------   ---------   -------   ----------   --------   -------     -------      ---------

Balance as of September 30,
 2001........................   98,168    $1,017  $2,358,035  $(49,178) $(1,302,201) $ 182,691  $    -      $ (6,234)    $1,184,130
                              ========     =====   =========   =======   ==========   ========   =======     =======      =========




         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 STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (Unaudited)



                                                       Three months ended      Nine months ended
                                                          September 30,           September 30,
                                                     ---------------------   -----------------------
                                                        2001       2000         2001        2000
                                                     ---------   ---------   ---------   -----------

                                                                             
Cash flows from operating activities:
  Net income......................................   $  24,602   $  69,288   $ 120,859   $    67,997
  Adjustments to reconcile net income to net
    cash provided by operating activities:
     Depletion, depreciation and amortization.....      60,065      56,572     169,622       162,029
     Exploration expenses, including dry holes....      17,250      16,221      80,082        46,273
     Deferred income taxes........................         567      (5,700)     (4,095)       (9,600)
     (Gain) loss on disposition of assets, net....          88     (24,158)     (8,677)      (27,751)
     Extraordinary item, net of tax...............      (1,374)        -        (1,374)       12,318
     Interest related amortization................       2,559       2,791       8,446         9,179
     Other noncash items..........................       2,525      15,123       5,752        59,011
  Changes in operating assets and liabilities:
     Accounts receivable..........................       8,862     (12,620)     36,916       (11,713)
     Inventories..................................      (3,489)      2,145      (4,401)         (175)
     Other current assets.........................        (763)         (2)     (5,795)        1,993
     Accounts payable.............................      11,431      16,964      (7,426)        2,504
     Interest payable.............................        (626)       (430)        288         1,782
     Other current liabilities....................       1,203     (20,466)       (233)      (28,753)
                                                      --------    --------    --------    ----------
       Net cash provided by operating activities..     122,900     115,728     389,964       285,094
                                                      --------    --------    --------    ----------
Cash flows from investing activities:
  Proceeds from disposition of assets.............      57,811      65,204      73,006        93,726
  Additions to oil and gas properties.............    (125,704)    (71,296)   (364,428)     (183,551)
  Other property (additions) dispositions, net....      (6,529)      3,021     (10,490)        3,899
                                                      --------    --------    --------    ----------
       Net cash used in investing activities......     (74,422)     (3,071)   (301,912)      (85,926)
                                                      --------    --------    --------    ----------
Cash flows from financing activities:
  Borrowings under long-term debt.................      95,000      17,409     204,175       894,084
  Principal payments on long-term debt............    (125,055)   (117,573)   (249,230)   (1,046,250)
  Payment of noncurrent liabilities...............     (10,971)     (7,052)    (41,710)      (18,054)
  Exercise of stock options and employee
    stock purchases...............................       1,165         473       6,610           726
  Purchase of treasury stock......................      (5,962)     (6,340)    (13,032)      (12,647)
  Deferred loan fees/issuance costs...............         -           106         -         (13,772)
                                                      --------    --------    --------    ----------
       Net cash used in  financing activities.....     (45,823)   (112,977)    (93,187)     (195,913)
                                                      --------    --------    --------    ----------
Net increase (decrease) in cash and cash
  equivalents.....................................       2,655        (320)     (5,135)        3,255
Effect of exchange rate changes on cash and
  cash equivalents................................        (145)        (51)       (287)         (145)
Cash and cash equivalents, beginning of period....      18,227      38,269      26,159        34,788
                                                      --------    --------    --------    ----------
Cash and cash equivalents, end of period..........   $  20,737   $  37,898   $  20,737   $    37,898
                                                      ========    ========    ========    ==========



         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 COMPREHENSIVE INCOME
                                 (in thousands)
                                   (Unaudited)





                                                       Three months ended     Nine months ended
                                                          September 30,          September 30,
                                                     ---------------------   ---------------------
                                                        2001       2000        2001        2000
                                                     ---------   ---------   ---------   ---------

                                                                             
Net income........................................   $  24,602   $  69,288   $ 120,859   $  67,997

Other comprehensive income (loss):
  Deferred hedge gains and losses:
     Transition adjustment........................         -           -      (197,444)        -
     Deferred hedge gains.........................     148,116         -       343,080         -
     Net (gains) losses included in net income....     (14,800)        -        37,055         -
  Gains and losses on available for sale
   securities:
     Unrealized holding gains and losses..........         -       (10,529)        (45)     32,678
     Gains included in net income.................         -       (25,674)     (8,109)    (25,674)
  Translation adjustment..........................      (7,994)     (2,781)     (9,749)     (7,432)
                                                      --------    --------    --------    --------

       Other comprehensive income (loss)..........     125,322     (38,984)    164,788        (428)
                                                      --------    --------    --------    --------

Comprehensive income..............................   $ 149,924   $  30,304   $ 285,647   $  67,569
                                                      ========    ========    ========    ========




         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

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)

NOTE A.     Organization and Nature of Operations

       Pioneer  Natural  Resources  Company   (the  "Company")   is  a  Delaware
corporation  whose  common  stock is listed  and  traded  on the New York  Stock
Exchange  and  the  Toronto  Stock  Exchange.  The  Company  is an oil  and  gas
exploration  and  production  company  with  ownership  interests in oil and gas
properties  located  principally in the Mid Continent,  Southwestern and onshore
and offshore Gulf Coast  regions of the United States and in Argentina,  Canada,
Gabon, South Africa and Tunisia.

NOTE B.     Basis of Presentation

       In the  opinion  of  management,  the  unaudited  consolidated  financial
statements  of the Company as of  September  30, 2001 and for the three and nine
month periods  ended  September  30, 2001 and 2000 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.
Certain amounts in the prior period financial  statements have been reclassified
to conform to the current period presentation.

       Certain  information  and  footnote   disclosures  normally  included  in
financial  statements  prepared in accordance with generally accepted accounting
principles  have been  condensed  or omitted in this Form 10-Q  pursuant  to the
rules and regulations of the Securities and Exchange Commission  ("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, 2000.

NOTE C.     Derivative Financial Instruments

       In June 1998,  the Financial Accounting  Standards Board issued Statement
of  Financial   Accounting   Standards  No.  133,   "Accounting  for  Derivative
Instruments and Hedging  Activities" ("SFAS 133") as amended,  the provisions of
which the Company adopted on January 1, 2001.

       SFAS  133   requires  the   accounting  recognition  of  all   derivative
instruments  as  either  assets  or   liabilities  at  fair  value.   Derivative
instruments  that are not hedges  must be  adjusted  to fair value  through  net
income.  Under  the  provisions  of SFAS  133,  changes  in the  fair  value  of
derivative  instruments that are fair value hedges are offset against changes in
the fair value of the hedged assets, liabilities,  or firm commitments,  through
net income.  Effective changes in the fair value of derivative  instruments that
are cash flow hedges are  recognized  in other  comprehensive  income until such
time as the hedged items are recognized in net income. Ineffective portions of a
derivative  instrument's change in fair value are immediately  recognized in net
income.

       The adoption of  SFAS 133 on  January 1,  2001  resulted  in a transition
adjustment  to (i)  reclassify  $57.8  million of deferred  losses on terminated
hedge  positions  from other assets  (including  $11.4  million of other current
assets),  (ii)  increase  other current  assets,  other assets and other current
liabilities by $7.0 million, $6.2 million and $146.6 million,  respectively,  to
record the fair value of open hedge  derivatives,  (iii)  increase  the carrying
value of hedged  long-term  debt by $6.2  million and (iv) reduce  stockholders'
equity by $197.4  million for the net impact of items (i) through  (iii)  above.
The  $197.4  million  reduction  in  stockholders'  equity  is  reflected  as  a
transition  adjustment in other comprehensive  income as of January 1, 2001. See
"Accumulated other comprehensive  income - deferred hedge gains and losses, net"
below for additional  information  regarding the impact to stockholders'  equity
from the  provisions of SFAS 133 during the nine month period  ending  September
30, 2001.

       Under the provisions of SFAS 133,  the Company may designate a derivative
instrument as hedging the exposure to changes in the fair value of an asset or a
liability or an identified  portion thereof that is attributable to a particular
risk (a "fair  value  hedge") or as  hedging  the  exposure  to  variability  in
expected  future cash flows that are  attributable to a particular risk (a "cash
flow hedge").  Both at the inception of a hedge and on an ongoing  basis, a fair


                                        9




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


value hedge must be  expected to be highly  effective  in  achieving  offsetting
changes in fair value  attributable to the hedged risk during the periods that a
hedge is designated.  Similarly, a cash flow hedge must be expected to be highly
effective in achieving  offsetting  cash flows  attributable  to the hedged risk
during the term of the hedge.  The  Company's  policy is to assess  actual hedge
effectiveness at the end of each calendar quarter.

       Fair value hedging strategy.  During April 2000 and May 2001, the Company
entered  into  interest  rate swap  agreements  to hedge  the fair  value of the
Company's 8-7/8 percent Senior Notes due April 15, 2005 and 8-1/4 percent Senior
Notes due August 15, 2007, respectively. The terms of the 8-7/8 percent interest
rate swap agreements  provided for an aggregate  notional amount of $150 million
of debt;  commenced on April 19, 2000 and had a scheduled  maturity on April 15,
2005;  required  the  counterparties  to pay the Company a fixed  annual rate of
8-7/8  percent on the  notional  amount;  and,  required  the Company to pay the
counterparties  a  variable  annual  rate on the  notional  amount  equal to the
periodic  three-month  London  Interbank  Offered Rate ("LIBOR") plus a weighted
average  margin rate of 178.2 basis  points.  The terms of the  Company's  8-1/4
percent interest rate swap agreements  provided for an aggregate notional amount
of $150 million of debt;  commenced on May 29, 2001 and had a scheduled maturity
on August 15,  2007;  required  the  counterparties  to pay the  Company a fixed
annual rate of 8-1/4 percent on the notional amount;  and,  required the Company
to pay the counterparties a variable rate on the notional amounts equal to LIBOR
plus a weighted average margin rate of 238.1 basis points.

       The terms of the above  described fair value hedges perfectly matched the
terms of the underlying  hedged fixed rate debt. The Company did not exclude any
component  of the  derivatives'  gains or losses from the  measurement  of hedge
effectiveness.  On September 21, 2001, the Company  terminated its 8-7/8 percent
and 8-1/4  percent  interest  rate  swaps for $23.3  million  of cash  proceeds,
including accrued interest.  As of September 30, 2001, the Company has increased
the carrying  value of the  underlying  long-term debt by $21.2 million and such
amount will be amortized as  reductions  in interest  expense over the remaining
original terms of the interest rate swaps.

       Cash  flow  hedging  strategy.  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.  The Company also  utilizes  interest rate swap
agreements  to reduce the effect of interest  rate  volatility  on the Company's
variable-rate line-of-credit indebtedness.

       Oil prices.  All material  sales  contracts  governing the  Company's oil
production  have been tied  directly or  indirectly  to the New York  Mercantile
Exchange  ("NYMEX")  prices.  The  following  table  sets  forth  the  Company's
outstanding oil hedge contracts and the weighted  average NYMEX prices for those
contracts as of September 30, 2001:


                                       10




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)



                                                                                                      Yearly
                                     First          Second            Third           Fourth       Outstanding
                                    Quarter         Quarter          Quarter          Quarter         Average
                                 -------------   -------------    -------------    -------------   -------------
                                                                                    
Daily oil production:
     2001 - Swap Contracts
       Volume (Bbls)..........                                                            24,348          24,348
       Price per Bbl..........                                                     $       27.98   $       27.98

     2001 - Collar Contracts
       Volume (Bbls)..........                                                             2,000           2,000
       Prices per Bbl.........                                                     $25.00-$31.43   $25.00-$31.43

     2002 - Swap Contracts
       Volume (Bbls)..........          18,000           8,000            7,000            4,000           9,205
       Price per Bbl..........   $       27.40   $       26.35    $       25.23    $       25.19   $       26.51

     2002 - Collar Contracts
       Volume (Bbls)..........          10,000          10,000              -                -             4,959
       Prices per Bbl.........   $25.00-$28.56   $25.00-$28.56                                     $25.00-$28.56

     2003 - Swap Contracts
       Volume (Bbls)..........           6,000           6,000              -                -             2,975
       Price per Bbl..........   $       24.02   $       24.02                                     $       24.02


       The Company reports  average oil prices per  Bbl including the effects of
oil  quality,  gathering  and  transportation  costs  and the net  effect of oil
hedges.  The following table sets forth the Company's oil prices,  both reported
and realized  (excluding  hedge results),  and the net effects of settlements of
oil price hedges to revenue:


                                                         Three months ended   Nine months ended
                                                            September 30,        September 30,
                                                         ------------------   ------------------
                                                           2001       2000      2001       2000
                                                         -------    -------   -------    -------

                                                                             
       Average price reported per Bbl.................   $ 25.06    $ 25.48   $ 24.95    $ 23.52
       Average price realized per Bbl.................   $ 24.84    $ 30.06   $ 25.74    $ 28.37
       Increase (reduction) to revenue (in millions)..   $    .7    $ (14.4)  $  (7.4)   $ (45.5)


       Natural gas liquids prices. During the three and nine month periods ended
September 30, 2001 and 2000,  the Company did not enter into, nor was it a party
to, any NGL hedge contracts.



                                       11




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


       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.  The
following table sets forth the Company's outstanding gas hedge contracts and the
weighted average index price for those contracts as of September 30, 2001:


                                                                                               Yearly
                                    First         Second          Third         Fourth       Outstanding
                                   Quarter        Quarter        Quarter        Quarter        Average
                                 -----------    -----------    -----------    -----------    -----------
                                                                              
Daily gas production:
  2001 - Swap Contracts
     Volume (Mcf).............                                                    120,908        120,908
     Index price per MMBtu....                                                $      4.31    $      4.31

  2001 - Collar Contracts
     Volume (Mcf).............                                                     54,482         54,482
     Index prices per MMBtu...                                                $2.11-$2.74    $2.11-$2.74

  2002 - Swap Contracts
     Volume (Mcf).............       140,000        140,000        170,000        170,000        155,123
     Index price per MMBtu....   $      4.28    $      4.28    $      4.21    $      4.21    $      4.24

  2002 - Collar Contracts
     Volume (Mcf).............        20,000         20,000         20,000         20,000         20,000
     Index prices per MMBtu...   $4.50-$6.00    $4.50-$6.00    $4.50-$6.00    $4.50-$6.00    $4.50-$6.00

  2003 - Swap Contracts
     Volume (Mcf).............        50,000         50,000         50,000         50,000         50,000
     Index price per MMBtu....   $      4.07    $      4.07    $      4.07    $      4.07    $      4.07

  2004 - Swap Contracts
     Volume (Mcf).............       190,000        190,000        190,000        190,000        190,000
     Index price per MMBtu....   $      3.98    $      3.98    $      3.98    $      3.98    $      3.98


       The Company  reports average gas  prices per Mcf including the effects of
Btu content,  gathering and  transportation  costs, gas processing and shrinkage
and the net effect of gas hedges.  The following  table sets forth the Company's
gas prices,  both reported and realized  (excluding hedge results),  and the net
effects of settlements of gas price hedges to revenue:


                                                         Three months ended    Nine months ended
                                                            September 30,        September 30,
                                                         ------------------   -------------------
                                                           2001       2000      2001       2000
                                                         -------    -------   -------    --------

                                                                             
       Average price reported per Mcf.................   $  2.66    $  2.87   $  3.40    $  2.49
       Average price realized per Mcf.................   $  2.24    $  3.12   $  3.59    $  2.63
       Increase (reduction) to revenue (in millions)..   $  14.6    $  (9.0)  $ (18.6)   $ (14.6)


       Interest rates.  During the nine  months ended  September 30,  2001,  the
Company  entered into  interest rate swap  agreements  and  designated  the swap
agreements as being cash flow hedges of the interest rate volatility  associated
with certain of the Company's  variable-rate  line-of-credit  indebtedness.  The
terms of the interest  rate swap  agreements  provide for an aggregate  notional
amount of $55 million of debt;  commenced  on May 21, 2001 and mature on May 20,
2002; require the counterparties to pay the Company a variable rate equal to the
six-month  LIBOR plus 125 basis  points;  and,  require  the  Company to pay the
counterparties  a weighted  average rate of 5.43 percent on the notional amount.
The fair value of these interest rate swap agreements represented a liability of
$519 thousand as of September 30, 2001.

       Hedge ineffectiveness and  excluded items.  During the three months ended
September  30, 2001,  the Company  recognized a net decrease to other expense of
$.2  million  related  to the  ineffective  portion  of its  cash  flow  hedging

                                       12




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


instruments.  During the nine  months  ended  September  30,  2001,  the Company
recognized  an $8.9  million  increase  to other  expense  as a result  of hedge
ineffectiveness.  Prior to April 2001, the Company  excluded changes in the time
and volatility value components of collar contracts that were designated as cash
flow hedges from the measurement of hedge effectiveness.  Associated  therewith,
the Company  recorded a net increase to other expense of $2.1 million during the
nine  month  period  ended  September  30,  2001.  In April  2001,  the  Company
discontinued  the exclusion of time value and volatility from the measurement of
hedge effectiveness.

       Accumulated other comprehensive income - deferred hedge gains and losses,
net. As described above, the Company recorded a transition adjustment associated
with the January 1, 2001  adoption of the  provisions  of SFAS 133 which reduced
stockholders'  equity by $197.4 million.  The adjustment to stockholders' equity
was comprised of the fair value of the  Company's  derivative  instruments  that
were  designated as commodity  cash flow hedges,  whose fair value amounted to a
liability of $139.6 million as of January 1, 2001, and deferred  losses realized
from  the  early  termination  of cash  flow  hedges  of  $57.8  million.  These
adjustments  to  stockholders'  equity  were  classified  as  Accumulated  other
comprehensive  income  ("AOCI") - deferred hedge gains and losses at transition.
As of  September  30,  2001,  AOCI - deferred  hedge gains and losses was $182.7
million, an increase of $380.1 million in stockholders' equity since the initial
transition adjustment.  The AOCI - deferred hedge gains and losses balance as of
September 30, 2001 was comprised of $197.2 million of unrealized  deferred hedge
gains on the effective  portions of commodity and interest rate cash flow hedges
that will mature in the future and $14.5 million of net deferred losses from the
early  termination  of cash flow hedges.  The increase in AOCI - deferred  hedge
gains and losses since January 1, 2001 is primarily attributable to decreases in
commodity  prices  during the period  which have  resulted in an increase in the
fair value of the Company's commodity derivative portfolio.

       During the twelve month  period ending  September 30,  2002,  the Company
expects to reclassify $113.9 million of deferred gains associated with cash flow
hedges  that will mature  during  future  periods and $38.7  million of deferred
losses for  terminated  cash flow  hedges  from AOCI - deferred  hedge gains and
losses to oil and gas revenue.  Additionally,  the Company expects to reclassify
$.2  million of deferred  losses from AOCI - deferred  hedge gains and losses to
interest expense during the twelve month period ending September 30, 2002.

       Non-hedge commodity derivatives.  The Company is a  party to  certain BTU
swap  agreements  that mature at the end of 2004. The BTU swap  agreements  were
originally transacted by Mesa Inc. ("Mesa"),  prior to the Company's acquisition
of Mesa.  Mesa's strategy for entering into the BTU swap agreements was to shift
a portion  of their gas price risk to oil  prices.  As a result of the merger of
Parker & Parsley  Petroleum  Company and Mesa Inc., the Company became obligated
under  the BTU swap  agreements  during  1997.  The BTU swap  agreements  do not
qualify as hedges. The accompanying Consolidated Statement of Operations for the
nine months ended September 30, 2001 includes a net  mark-to-market  decrease to
the liability recognized for the BTU swap agreements of $.7 million.  During the
three and nine month periods  ended  September  30, 2000,  the Company  recorded
mark-to-market  increases  to  the  liabilities  recognized  for  the  BTU  swap
agreements of $10.2 million and $12.9 million, respectively. As of September 30,
2001 and December 31, 2000,  the  Company's BTU swap  liabilities  totaled $20.6
million and $25.5 million, respectively, of which $6.3 million and $6.4 million,
respectively,  represent current  liabilities.  During 2001, the Company entered
into  offsetting  BTU swap  agreements  that have fixed the Company's  remaining
obligation  associated with the BTU swap  agreements.  The  undiscounted  future
settlement  obligations  of the Company under the BTU swap  agreements  are $1.5
million  during the three months  ending  December 31, 2001 and $7.2 million per
year for each of 2002, 2003 and 2004.

       During 2000,  the  Company was  a party  to  options  that  provided  the
counterparties  the right to exercise call  provisions on 10,000 barrels per day
of oil, at a strike price of $20.00 per barrel,  or to exercise call  provisions
over that same  time  period on  100,000  MMBtu  per day of  natural  gas,  at a
weighted  average price of $2.75 per MMBtu.  These  contracts,  which matured on
December 31, 2000, did not qualify for hedge accounting treatment. The Company's
strategy  for  entering  into these call  options  was to earn  associated  call
premiums that were used to purchase  other in-the- money  commodity  derivatives
that  qualified  for hedge  accounting  treatment.  For the three and nine month

                                       13




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


periods  ended  September  30,  2000,  other  expenses  include   mark-to-market
increases to the  liabilities  recognized on these contracts of $3.1 million and
$41.1 million, respectively.

       Non-hedge  foreign  currency  agreements.  The  Company  was a party to a
series of forward foreign exchange rate swap agreements that exchanged  Canadian
dollars for United States dollars.  These  agreements  matured during the fourth
quarter of 2000.  The foreign  exchange  rate swap  agreements  were  originally
transacted  by  Chauvco  Resources  Ltd.  ("Chauvco"),  prior  to the  Company's
acquisition of Chauvco.  Chauvco  entered into the agreements to hedge a portion
of their foreign exchange rate exposure.  The Company became obligated under the
foreign  exchange rate swap  agreements  upon the  acquisition of Chauvco during
1997.  The  foreign  exchange  rate swap  agreements  did not  qualify for hedge
accounting   treatment   during  2000.  The  Company   recorded   mark-to-market
adjustments to increase the associated  contract  liabilities by $.3 million and
$1.5 million  during the three and nine month periods ended  September 30, 2000,
respectively.

NOTE D.     Investment Securities

       As of December 31, 2000, the Company owned 613,215 shares of Prize Energy
Corp. ("Prize") common stock. The Company classified its investment in the Prize
common stock as available for sale  securities and carried the investment at its
market-quoted  fair  value  in other  assets  in the  accompanying  Consolidated
Balance  Sheets.  As of  December  31,  2000,  the fair  value of the  Company's
investment in Prize common stock was $12.7 million.  Associated  therewith,  the
Company had recorded  unrealized  gains on available for sale securities of $8.2
million  within  stockholders'  equity in the  accompanying  December  31,  2000
Consolidated Balance Sheet.

       During the  nine month  period  ended  September 30,  2001,  the  Company
divested its  remaining  holdings in Prize common stock and realized  associated
gains  of $8.1  million.  Additionally,  during  the  nine  month  period  ended
September 30, 2001, the Company recognized, in other comprehensive income in the
accompanying Consolidated Statements of Comprehensive Income, an unrealized loss
of $45 thousand  from changes in the fair value of  investments  in Prize common
stock.  During the three and nine month  periods ended  September 30, 2000,  the
Company realized gains of $25.7 million and $34.4 million,  respectively, on the
disposition of Prize common stock.

NOTE E.     Commitments and Contingencies

       Legal actions.  The Company is  party to various legal actions incidental
to its business,  including, but not limited to, the proceeding described below.
The majority of these lawsuits primarily involve claims for damages arising from
oil and gas leases and ownership  interest  disputes.  The Company believes that
the ultimate disposition of these legal actions will not have a material adverse
effect on the Company's  consolidated  financial  position,  liquidity,  capital
resources or future 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  the then  current  status of
litigation.

       Kansas ad valorem tax. The Natural Gas Policy Act of 1978 ("NGPA") allows
a "severance,  production or similar" tax to be included as an add-on,  over and
above the  maximum  lawful  price for  natural  gas.  Based on a Federal  Energy
Regulatory Commission ("FERC") ruling that Kansas ad valorem tax was such a tax,
Mesa  collected the Kansas ad valorem tax in addition to the  otherwise  maximum
lawful  price.  The FERC's  ruling was  appealed to the United  States  Court of
Appeals for the District of Columbia ("D.C.  Circuit"),  which held in June 1988
that the FERC failed to provide a reasoned  basis for its  findings and remanded
the case to the FERC for further consideration.

       On December 1, 1993, the FERC issued an order reversing its prior ruling,
but  limiting  the effect of its  decision to Kansas ad valorem  taxes for sales
made on or after June 28, 1988.  The FERC  clarified the  effective  date of its
decision by an order dated May 18, 1994. The order  clarified that the effective
date applies to tax bills  rendered  after June 28,  1988,  not sales made on or
after that date. Numerous parties filed appeals on the FERC's action in the D.C.

                                       14




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


Circuit.  Various  natural gas  producers  challenged  the FERC's  orders on two
grounds: (1) that the Kansas ad valorem tax, properly  understood,  does qualify
for  reimbursement  under the NGPA;  and (2) the FERC's  ruling  should,  in any
event,  have been applied  prospectively.  Other parties  challenged  the FERC's
orders  on  the  grounds  that  the  FERC's  ruling  should  have  been  applied
retroactively  to December 1, 1978,  the date of the  enactment  of the NGPA and
producers should have been required to pay refunds accordingly.

       The D.C. Circuit issued its decision on August 2, 1996,  which holds that
producers  must make refunds of all Kansas ad valorem tax collected with respect
to production since October 4, 1983, as opposed to June 28, 1988.  Petitions for
rehearing  were  denied on  November  6, 1996.  Various  natural  gas  producers
subsequently  filed a  petition  for writ of  certiori  with the  United  States
Supreme Court  seeking to limit the scope of the potential  refunds to tax bills
rendered on or after June 28, 1988 (the  effective date  originally  selected by
the FERC).  Williams  Natural Gas Company  filed a  cross-petition  for certiori
seeking to impose refund liability back to December 1, 1978. Both petitions were
denied on May 12, 1997.

       The Company and other  producers filed petitions  for adjustment with the
FERC on June 24, 1997.  The Company was seeking waiver or set-off from FERC with
respect  to that  portion  of the  refund  associated  with (i) non-  recoupable
royalties,  (ii)  non-recoupable  Kansas property taxes based, in part, upon the
higher prices  collected,  and (iii) interest for all periods.  On September 10,
1997,  FERC denied this request,  and on October 10, 1997, the Company and other
producers filed a request for rehearing. Pipelines were given until November 10,
1997 to file  claims on refunds  sought  from  producers  and  refunds  totaling
approximately  $30 million were made against the Company.  During the year ended
December  31,  2000,  the Company  paid $3.9  million in partial  settlement  of
original claims presented under this  litigation.  The Company is unable at this
time to predict the final  outcome of this matter or the  amount,  if any,  that
will ultimately be refunded. As of September 30, 2001 and December 31, 2000, the
Company had on deposit $28.8 million and $28.1 million, respectively,  including
accrued  interest,  in an escrow account and had  corresponding  obligations for
this  litigation  recorded  in other  current  liabilities  in the  accompanying
Consolidated Balance Sheets.

NOTE F.     Extraordinary Items

       On July 2,  2001,  the  Company  redeemed the  remaining $22.5 million of
outstanding 11-5/8% Senior Subordinated Discount Notes due July 1, 2006 and $6.8
million of outstanding  10-5/8% Senior  Subordinated Notes due July 1, 2006. The
total  redemption  was $31.0  million and was funded from the  Company's  credit
facility.   Associated  with  this   redemption,   the  Company   recognized  an
extraordinary gain of $1.4 million during the three and nine month periods ended
September 30, 2001.

       On  May 31,  2000,  the  Company  entered  into  a $575.0  million credit
facility  (the  "Credit  Facility")  that  matures on March 1, 2005.  The Credit
Facility  replaced the  Company's  prior  revolving  credit  facility that had a
maturity  date of August 7, 2002 (the "Prior Credit  Facility").  As a result of
the early extinguishment of the Prior Credit Facility, the Company recognized an
extraordinary loss of $12.3 million during the nine month period ended September
30, 2000.

                                       15




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


NOTE G.     Income Per Share Before Extraordinary Item

       Following is a  reconciliation of the  basic and diluted income per share
before  extraordinary  item  computations  for the three and nine month  periods
ended September 30, 2001:


                                                Income                               Income
                                                Before       Weighted Average   Per Share Before
                                             Extraordinary     Common Shares     Extraordinary
                                                 Item          Outstanding            Item
                                             -------------   ----------------   -----------------
                                                    (in thousands, except per share amounts)
                                                                       
Three Months Ended September 30, 2001:
   Basic.....................................  $   23,228          98,468            $  .24
   Effect of dilutive securities:
     Common stock options*...................         -             1,055
                                                ---------       ---------
   Diluted...................................  $   23,228          99,523            $  .24
                                                =========       =========
Three Months Ended September 30, 2000:
   Basic.....................................  $   69,288          99,312            $  .70
   Effect of dilutive securities:
     Common stock options*...................         -               492
                                                ---------       ---------
   Diluted...................................  $   69,288          99,804            $  .69
                                                =========       =========
Nine Months Ended September 30, 2001:
   Basic.....................................  $  119,485          98,395            $ 1.22
   Effect of dilutive securities:
     Common stock options*...................         -             1,251
                                                ---------       ---------
   Diluted...................................  $  119,485          99,646            $ 1.20
                                                =========       =========
Nine Months Ended September 30, 2000:
   Basic.....................................  $   80,315          99,718            $  .80
   Effect of dilutive securities:
     Common stock options*...................         -               334
                                                ---------       ---------
   Diluted...................................  $   80,315         100,052            $  .80
                                                =========       =========


---------------

*    Common stock options to purchase  4,347,845 and 4,159,084  shares of common
     stock were  outstanding  but not  included in the  computations  of diluted
     income per share for the three month periods  ended  September 30, 2001 and
     2000,  respectively,  and common stock options to purchase 3,022,779 shares
     and 4,899,586  shares of common stock were  outstanding but not included in
     the  computations  of diluted  income per share for the nine month  periods
     ended September 30, 2001 and 2000 respectively, 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.

NOTE H.     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, Argentina and Canada.

       The following tables provide the  Company's interim  geographic operating
segment data. Geographic operating segment income tax benefits (provisions) have
been  determined  based  on   statutory  rates  existing   in  the  various  tax

                                       16




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)


jurisdictions  where  the  Company  has oil and gas  producing  activities.  The
"Headquarters  and Other" table column  includes  revenues and expenses that are
not  routinely  included  in  the  earnings  measures   internally  reported  to
management on a geographic operating segment basis.


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

                                                                                   
Three months ended September 30, 2001:
  Oil and gas revenue.................  $149,283    $ 36,919    $11,886    $   -       $    -        $ 198,088
  Interest and other..................       -           -            -        -          6,471          6,471
  Gain (loss) on disposition of
    assets, net                                8         -           (7)       -            (89)           (88)
                                         -------     -------     ------     ------      -------       --------
                                         149,291      36,919     11,879        -          6,382        204,471
                                         -------     -------     ------     ------      -------       --------
  Production costs....................    41,516       7,059      3,138        -            -           51,713
  Depletion, depreciation and
    amortization......................    34,061      15,003      7,793        -          3,208         60,065
  Exploration and abandonments........    16,292       2,728      1,440      4,206          -           24,666
  General and administrative..........       -           -          -          -          8,153          8,153
  Interest............................       -           -          -          -         32,261         32,261
  Other...............................       -           -          -          -          2,006          2,006
                                         -------     -------     ------     ------      -------       --------
                                          91,869      24,790     12,371      4,206       45,628        178,864
                                         -------     -------     ------     ------      -------       --------
  Income (loss) before income taxes
    and extraordinary item............    57,422      12,129       (492)    (4,206)     (39,246)        25,607
  Income tax benefit (provision)......   (20,098)     (4,245)       210      1,473       20,281         (2,379)
                                         -------     -------     ------     ------      -------       --------
  Income (loss) before extraordinary
    item                                $ 37,324    $  7,884    $  (282)   $(2,733)    $(18,965)     $  23,228
                                         =======     =======     ======     ======      =======       ========

Three months ended September 30, 2000:
  Oil and gas revenue.................  $172,825    $ 40,519    $15,243    $   -       $    -        $ 228,587
  Interest and other..................       -           -          -          -          5,200          5,200
  Gain (loss) on disposition of
    assets, net.......................    (1,159)       -          (48)       -          25,365         24,158
                                         -------     -------     ------     ------      -------       --------
                                         171,666      40,519     15,195        -         30,565        257,945
                                         -------     -------     ------     ------      -------       --------
  Production costs....................    40,867       6,398      2,463        -            -           49,728
  Depletion, depreciation and
    amortization......................    31,308      14,857      6,510        -          3,897         56,572
  Exploration and abandonments........    15,711       4,711        503      2,506          -           23,431
  General and administrative..........       -           -          -          -          6,537          6,537
  Interest............................       -           -          -          -         40,794         40,794
  Other...............................       -           -          -          -         15,495         15,495
                                         -------     -------     ------     ------      -------       --------
                                          87,886      25,966      9,476      2,506       66,723        192,557
                                         -------     -------     ------     ------      -------       --------
  Income (loss) before income taxes...    83,780      14,553      5,719     (2,506)     (36,158)        65,388
  Income tax benefit (provision)......   (29,323)     (5,093)    (2,551)       877       39,990          3,900
                                         -------     -------     ------     ------      -------       --------
  Net income (loss) ..................  $ 54,457    $  9,460    $ 3,168    $(1,629)    $  3,832      $  69,288
                                         =======     =======     ======     ======      =======       ========






                                       17




                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)



                                         United                              Other     Headquarters   Consolidated
                                         States     Argentina    Canada     Foreign     and Other         Total
                                        ---------   ---------   --------   ---------   ------------   ------------
                                                                    (in thousands)
                                                                                     
Nine months ended September 30, 2001:
  Oil and gas revenue.................  $ 512,483   $ 104,439   $ 57,763    $    -      $     -        $ 674,685
  Interest and other..................        -          -           -           -         22,593         22,593
  Gain on disposition of assets, net..        224        -            31         -          8,422          8,677
                                         --------    --------    -------     -------     --------       --------
                                          512,707     104,439     57,794         -         31,015        705,955
                                         --------    --------    -------     -------     --------       --------
  Production costs....................    130,196      19,676      9,617         -            -          159,489
  Depletion, depreciation and
    amortization......................     95,274      41,380     22,273         -         10,695        169,622
  Exploration and abandonments........     50,567      13,211      8,921      21,433          -           94,132
  General and administrative..........        -           -          -           -         26,606         26,606
  Interest............................        -           -          -           -        102,137        102,137
  Other...............................        -           -          -           -         29,097         29,097
                                         --------    --------    -------     -------     --------       --------
                                          276,037      74,267     40,811      21,433      168,535        581,083
                                         --------    --------    -------     -------     --------       --------
  Income (loss) before income taxes
    and extraordinary item............    236,670      30,172     16,983     (21,433)    (137,520)       124,872
  Income tax benefit (provision)......    (82,835)    (10,560)    (7,238)      7,502       87,744         (5,387)
                                         --------    --------    -------     -------     --------       --------
  Income (loss) before extraordinary
    item..............................  $ 153,835   $  19,612   $  9,745    $(13,931)   $ (49,776)     $ 119,485
                                         ========    ========    =======     =======     ========       ========

Nine months ended September 30, 2000:
  Oil and gas revenue.................  $ 455,161   $ 104,994   $ 40,754    $    -      $     -        $ 600,909
  Interest and other..................        -           -          -           -         14,141         14,141
  Gain (loss) on disposition of
    assets, net.......................     (1,136)        -          204         -         28,683         27,751
                                         --------    --------    -------     -------     --------       --------
                                          454,025     104,994     40,958         -         42,824        642,801
                                         --------    --------    -------     -------     --------       --------
  Production costs....................    111,501      17,394      7,095         -            -          135,990
  Depletion, depreciation and
    amortization......................     92,108      39,149     19,029         -         11,743        162,029
  Exploration and abandonments........     32,007      22,728      3,256       6,211          -           64,202
  General and administrative..........        -           -          -           -         23,259         23,259
  Interest............................        -           -          -           -        122,412        122,412
  Other...............................        -           -          -           -         60,394         60,394
                                         --------    --------    -------     -------     --------       --------
                                          235,616      79,271     29,380       6,211      217,808        568,286
                                         --------    --------    -------     -------     --------       --------
  Income (loss) before income taxes
    and extraordinary item............    218,409      25,723     11,578      (6,211)    (174,984)        74,515
  Income tax benefit (provision)......    (76,443)     (9,003)    (5,166)      2,174       94,238          5,800
                                         --------    --------    -------     -------     --------       --------
  Income (loss) before extraordinary
    item..............................  $ 141,966   $  16,720   $  6,412    $ (4,037)   $ (80,746)     $  80,315
                                         ========    ========    =======     =======     ========       ========


NOTE M.     Pioneer USA

      Pioneer Natural Resources USA,  Inc.  ("Pioneer  USA)  is  a  wholly-owned
subsidiary of the Company that has fully and unconditionally  guaranteed certain
debt  securities of the Company.  In accordance  with practices  accepted by the
SEC, the Company has prepared  Consolidating  Financial  Statements  in order to
quantify  the assets of Pioneer USA as a  subsidiary  guarantor.  The  following
Consolidating  Condensed Balance Sheets,  Consolidating  Condensed Statements of
Operations  and  Comprehensive   Income  (Loss)  and   Consolidating   Condensed
Statements  of Cash Flows  present  financial  information  for Pioneer  Natural
Resources Company as the Parent on a stand-alone basis (carrying any investments
in subsidiaries under the equity method),  financial information for Pioneer USA
on a stand-alone  basis (carrying any investment in  non-guarantor  subsidiaries
under the equity  method),  the  non-guarantor  subsidiaries of the Company on a
consolidated  basis,  the  consolidation  and elimination  entries  necessary to
arrive at the  information  for the  Company on a  consolidated  basis,  and the
financial  information for the Company on a consolidated  basis.  Pioneer USA is
not restricted from making distributions to the Company.



                                       18





                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)

                      CONSOLIDATING CONDENSED BALANCE SHEET
                            As of September 30, 2001
                                 (in thousands)
                                   (Unaudited)


                                     ASSETS
                                                                          Non-
                                                          Pioneer      Guarantor                        The
                                             Parent         USA       Subsidiaries   Eliminations     Company
                                           ----------   -----------   ------------   ------------   -----------
                                                                                     
Current assets:
  Cash and cash equivalents.............   $       51   $    16,036    $   4,650     $              $    20,737
  Other current assets..................    1,500,312    (1,106,057)    (153,911)                       240,344
                                            ---------    ----------     --------                     ----------
       Total current assets.............    1,500,363    (1,090,021)    (149,261)                       261,081
                                            ---------    ----------     --------                     ----------
Property, plant and equipment, at cost:
  Oil and gas properties, using the
   successful efforts method of
   accounting:
     Proved properties..................          -       2,519,358      979,746                      3,499,104
     Unproved properties................          -          20,997      184,766                        205,763
  Accumulated depletion, depreciation
    and amortization....................          -        (790,083)    (267,675)                    (1,057,758)
                                            ---------    ----------     --------                     ----------
                                                  -       1,750,272      896,837                      2,647,109
                                            ---------    ----------     --------                     ----------
Deferred income taxes...................       83,611           -            -                           83,611
Other property and equipment, net.......          -          16,988        4,023                         21,011
Other assets, net.......................       17,154       104,001       45,820                        166,975
Investment in subsidiaries..............      959,103        90,760          -        (1,049,863)           -
                                            ---------    ----------     --------                     ----------
                                           $2,560,231   $   872,000    $ 797,419                    $ 3,179,787
                                            =========    ==========     ========                     ==========

                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities.....................   $   44,456   $   176,292    $  26,074     $              $   246,822
Long-term debt, less current maturities.    1,554,552           -            -                        1,554,552
Other noncurrent liabilities............          345       134,689       34,276                        169,310
Deferred income taxes...................          -              -        24,973                         24,973
Stockholders' equity....................      960,878       561,019      712,096      (1,049,863)     1,184,130
Commitments and contingencies...........
                                            ---------    ----------     --------                     ----------
                                           $2,560,231   $   872,000    $ 797,419                    $ 3,179,787
                                            =========    ==========     ========                     ==========


                      CONSOLIDATING CONDENSED BALANCE SHEET
                             As of December 31, 2000
                                 (in thousands)

                                     ASSETS

                                                                          Non-
                                                          Pioneer      Guarantor                        The
                                             Parent         USA       Subsidiaries   Eliminations     Company
                                           ----------   -----------   ------------   ------------   -----------
                                                                                     
Current assets:
  Cash and cash equivalents.............   $       15   $    18,387    $   7,757     $              $    26,159
  Other current assets..................    2,006,496    (1,245,546)    (595,718)                       165,232
                                            ---------    ----------     --------                     ----------
       Total current assets.............    2,006,511    (1,227,159)    (587,961)                       191,391
                                            ---------    ----------     --------                     ----------
Property, plant and equipment, at cost:
  Oil and gas properties, using the
   successful efforts method of
   accounting:
     Proved properties..................          -       2,291,872      896,017                      3,187,889
     Unproved properties................          -          28,103      201,102                        229,205
  Accumulated depletion, depreciation
    and amortization....................          -        (692,250)    (209,889)                      (902,139)
                                            ---------    ----------     --------                     ----------
                                                  -       1,627,725      887,230                      2,514,955
                                            ---------    ----------     --------                     ----------
Deferred income taxes...................       84,400           -            -                           84,400
Other property and equipment, net.......          -          20,823        4,801                         25,624
Other assets, net.......................       18,877        89,632       29,556                        138,065
Investment in subsidiaries..............      347,370       100,192          -          (447,562)           -
                                            ---------    ----------     --------                     ----------
                                           $2,457,158   $   611,213    $ 333,626                    $ 2,954,435
                                            =========    ==========     ========                     ==========

                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities.....................   $   37,889   $   140,415    $  38,210     $              $   216,514
Long-term debt, less current maturities.    1,578,776           -            -                        1,578,776
Other noncurrent liabilities............          -         190,476       35,264                        225,740
Deferred income taxes...................          -             -         28,500                         28,500
Stockholders' equity....................      840,493       280,322      231,652        (447,562)       904,905
Commitments and contingencies...........
                                            ---------    ----------     --------                     ----------
                                           $2,457,158   $   611,213    $ 333,626                    $ 2,954,435
                                            =========    ==========     ========                     ==========



                                       19





                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)

                 CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
                            AND COMPREHENSIVE INCOME
                  For the Nine Months Ended September 30, 2001
                                 (in thousands)
                                   (Unaudited)


                                                                 Non-       Consolidated
                                                 Pioneer      Guarantor        Income                        The
                                      Parent       USA       Subsidiaries    Tax Benefit   Eliminations    Company
                                    ---------   ----------   ------------   ------------   ------------   ---------
                                                                                        
Revenues:
  Oil and gas....................   $     -     $  494,474    $  180,211     $      -       $             $ 674,685
  Interest and other.............         -         18,042         4,551            -                        22,593
  Gain on disposition of assets,
    net..........................         -          8,762           (85)           -                         8,677
                                     --------    ---------     ---------      ---------                    --------
                                          -        521,278       184,677            -                       705,955
                                     --------    ---------     ---------      ---------                    --------
Costs and expenses:
  Oil and gas production.........         -        128,922        30,567            -                       159,489
  Depletion, depreciation and
    amortization.................         -        101,062        68,560            -                       169,622
  Exploration and abandonments...         -         52,713        41,419            -                        94,132
  General and administrative.....         616       18,434         7,556            -                        26,606
  Interest.......................       3,823       85,328        12,986            -                       102,137
  Equity income from subsidiary..    (123,937)       7,030           -              -        116,907            -
  Other..........................         -          7,374        21,723            -                        29,097
                                     --------    ---------     ---------      ---------                    --------
                                     (119,498)     400,863       182,811            -                       581,083
                                     --------    ---------     ---------      ---------                    --------
Income (loss) before income taxes
  and extraordinary item.........     119,498      120,415         1,866            -                       124,872
Income tax benefit (provision)...         -           (783)       (4,591)           (13)                     (5,387)
                                     --------    ---------     ---------      ---------                    --------
Net income before extraordinary
  item...........................     119,498      119,632        (2,725)           (13)                    119,485

Extraordinary item - gain on
  early extinguishment of debt,
  net of tax.....................       1,374          -             -              -                         1,374
                                     --------    ---------     ---------      ---------                    --------
Net income (loss)................     120,872      119,632        (2,725)           (13)                    120,859
Other comprehensive income (loss):
  Deferred hedge gains and losses:
    Transition adjustment........         -       (172,007)      (25,437)           -                      (197,444)
    Unrealized hedge gains
     (losses)....................        (519)     317,510        26,089            -                       343,080
    Net losses included in net
     income......................         -         19,726        17,329            -                        37,055
  Gains and losses on available
   for sale securities:
    Unrealized holding gains
     and losses..................         -            (45)          -              -                           (45)
    Gains included in net income.         -         (8,109)          -              -                        (8,109)
  Cumulative translation
   adjustment....................         -            -          (9,749)           -                        (9,749)
                                     --------    ---------     ---------      ---------                    --------
Comprehensive income.............   $ 120,353   $  276,707    $    5,507     $      (13)                  $ 285,647
                                     ========    =========     =========      =========                    ========



                 CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
                         AND COMPREHENSIVE INCOME (LOSS)
                  For the Nine Months Ended September 30, 2000
                                 (in thousands)
                                   (Unaudited)


                                                                 Non-       Consolidated
                                                 Pioneer      Guarantor        Income                        The
                                      Parent       USA       Subsidiaries    Tax Benefit   Eliminations    Company
                                    ---------   ----------   ------------   ------------   ------------   ---------
                                                                                        
Revenues:
  Oil and gas....................   $     -     $  432,463    $  168,446     $      -       $             $ 600,909
  Interest and other.............          28        6,581         7,532            -                        14,141
  Gain (loss) on disposition of
    assets, net..................         -         30,859        (3,108)           -                        27,751
                                     --------    ---------     ---------      ---------                    --------
                                           28      469,903       172,870            -                       642,801
                                     --------    ---------     ---------      ---------                    --------
Costs and expenses:
  Oil and gas production.........         -        108,764        27,226            -                       135,990
  Depletion, depreciation and
    amortization.................         -         98,090        63,939            -                       162,029
  Exploration and abandonments...         -         35,714        28,488            -                        64,202
  General and administrative.....         143       15,861         7,255            -                        23,259
  Interest.......................     (38,728)     113,322        47,818            -                       122,412
  Equity income from subsidiary..     (41,653)      (5,061)          -              -         46,714            -
  Other..........................         -         57,239         3,155            -                        60,394
                                     --------    ---------     ---------      ---------                    --------
                                      (80,238)     423,929       177,881            -                       568,286
                                     --------    ---------     ---------      ---------                    --------
Income (loss) before income taxes
  and extraordinary item.........      80,266       45,974        (5,011)           -                        74,515
Income tax benefit (provision) ..         -             (4)        5,755             49                       5,800
                                     --------    ---------     ---------      ---------                    --------
Net income before extraordinary
  item...........................      80,266       45,970           744             49                      80,315

Extraordinary item - loss on
  early extinguishment of debt,
  net of tax.....................     (12,318)         -             -              -                       (12,318)
                                     --------    ---------     ---------      ---------                    --------
Net income.......................      67,948       45,970           744             49                      67,997
Other comprehensive income:
  Unrealized gain on available
    for sale securities..........         -         32,678           -              -                        32,678
  Realized gain on available for
    sale securities..............         -        (25,674)          -              -                       (25,674)
  Translation adjustment.........         -            -          (7,432)           -                        (7,432)
                                     --------    ---------     ---------      ---------                    --------
Comprehensive income (loss)......   $  67,948   $   52,974    $   (6,688)    $       49                   $  67,569
                                     ========    =========     =========      =========                    ========



                                       20





                        PIONEER NATURAL RESOURCES COMPANY

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                               September 30, 2001
                                   (Unaudited)

                 CONSOLIDATING CONDENSED STATEMENT OF CASH FLOWS
                  For the Nine Months Ended September 30, 2001
                                 (in thousands)
                                   (Unaudited)


                                                                                  Non-
                                                                    Pioneer     Guarantor         The
                                                        Parent        USA      Subsidiaries     Company
                                                     -----------   ---------   ------------   -----------
                                                                                  
Cash flows from operating activities:
 Net cash provided by operating activities........   $    30,343   $ 225,330    $  134,291    $   389,964
                                                      ----------    --------     ---------     ----------
Cash flows from investing activities:
 Proceeds from disposition of assets..............        21,170      51,105           731         73,006
 Additions to oil and gas properties..............           -      (228,154)     (136,274)      (364,428)
 Other property additions, net....................           -        (6,809)       (3,681)       (10,490)
                                                      ----------    --------     ---------     ----------
    Net cash used in investing activities.........        21,170    (183,858)     (139,224)      (301,912)
                                                      ----------    --------     ---------     ----------
Cash flows from financing activities:
 Borrowings under long-term debt..................       204,175         -             -          204,175
 Principal payments on long-term debt.............      (249,230)        -             -         (249,230)
 Payment of noncurrent liabilities................           -       (43,823)        2,113        (41,710)
 Exercise of stock options and employee
   stock purchases................................         6,610         -             -            6,610
 Purchase of treasury stock.......................       (13,032)        -             -          (13,032)
                                                      ----------    --------     ---------     ----------
    Net cash provided by (used in) financing
      activities..................................       (51,477)    (43,823)        2,113        (93,187)
                                                      ----------    --------     ---------     ----------
Net increase (decrease) in cash and cash
  equivalents.....................................            36      (2,351)       (2,820)        (5,135)
Effect of exchange rate changes on cash and
   cash equivalents...............................           -           -            (287)          (287)
Cash and cash equivalents, beginning of period....            15      18,387         7,757         26,159
                                                      ----------    --------     ---------     ----------
Cash and cash equivalents, end of period..........   $        51   $  16,036    $    4,650    $    20,737
                                                      ==========    ========     =========     ==========


                 CONSOLIDATING CONDENSED STATEMENT OF CASH FLOWS
                  For the Nine Months Ended September 30, 2000
                                 (in thousands)
                                   (Unaudited)


                                                                                  Non-
                                                                    Pioneer     Guarantor         The
                                                        Parent        USA      Subsidiaries     Company
                                                     -----------   ---------   ------------   -----------
                                                                                  
Cash flows from operating activities:
 Net cash provided by operating activities........   $   177,221   $  49,545    $   58,328    $   285,094
                                                      ----------    --------     ---------     ----------
Cash flows from investing activities:
 Proceeds from disposition of assets..............           -        84,656         9,070         93,726
 Additions to oil and gas properties..............           -      (107,701)      (75,850)      (183,551)
 Other property (additions) dispositions, net.....           -        (6,116)       10,015          3,899
                                                      ----------    --------      --------     ----------
    Net cash used in investing activities.........           -       (29,161)      (56,765)       (85,926)
                                                      ----------    --------      --------     ----------
Cash flows from financing activities:
 Borrowings under long-term debt..................       894,084         -             -          894,084
 Principal payments on long-term debt.............    (1,045,585)       (665)          -       (1,046,250)
 Payment of noncurrent liabilities................           -       (15,256)       (2,798)       (18,054)
 Exercise of stock options and employee stock
   purchases......................................           726         -             -              726
 Purchase of treasury stock.......................       (12,647)        -             -          (12,647)
 Deferred loan fees/issuance costs................       (13,772)        -             -          (13,772)
                                                      ----------    --------      --------     ----------
    Net cash used in financing activities.........      (177,194)    (15,921)       (2,798)      (195,913)
                                                      ----------    --------      --------     ----------
Net increase (decrease) in cash and cash
  equivalents.....................................            27       4,463        (1,235)         3,255
Effect of exchange rate changes on cash and
   cash equivalents...............................           -           -            (145)          (145)
Cash and cash equivalents, beginning of period....             5      22,699        12,084         34,788
                                                      ----------    --------      --------     ----------
Cash and cash equivalents, end of period..........   $        32   $  27,162     $  10,704    $    37,898
                                                      ==========    ========      ========     ==========



                                       21




                        PIONEER NATURAL RESOURCES COMPANY


Item 2.     Management's Discussion and Analysis of Financial Condition
              and Results of Operations(1)

Financial and Operating Performance

       The financial  and operating  performance of  Pioneer  Natural  Resources
Company (the  "Company" or  "Pioneer")  during the three and nine month  periods
ended September 30, 2001 was  highlighted by drilling and seismic  activities in
the United States Gulf of Mexico, South Africa, Gabon and Tunisia (see "Drilling
Highlights",  below)  and  significant  increases  in  year-to-date  income  and
operating cash flows for the three and nine month periods then ended.

       The Company reported net income of $24.6 million ($.25 per diluted share)
and  $120.9  million  ($1.21  per  diluted  share)  for the three and nine month
periods  ended  September  30, 2001,  as compared to net income of $69.3 million
($.69 per diluted share) and $68.0 million ($.68 per diluted share) for the same
respective  periods in 2000.  During the three months ended  September 30, 2001,
earnings were  impacted by declining  commodity  prices.  During the nine months
ended  September  30,  2001,  earnings  were  positively  impacted by  favorable
commodity  prices and an $8.7 million  gain on the  disposition  of assets.  The
Company's  results  for the three month  period  ended  September  30, 2000 were
impacted by increases  in commodity  prices and  Argentine  production  volumes,
$13.5  million of derivative  mark-  to-market  charges to other  expenses and a
$24.2 million gain on the disposition of assets,  which included a $25.7 million
gain on the sale of a portion of the Company's investment in the common stock of
a  non-affiliated  entity.  The results for the nine months ended  September 30,
2000 were significantly  impacted by $55.5 million of derivative mark-to- market
charges to other expenses,  a $12.3 million  extraordinary  item - loss on early
extinguishment  of debt and a $27.8 million gain on the  disposition  of assets,
including  $34.4  million  of gains on the sale of a  portion  of the  Company's
investment  in the common  stock of a  non-affiliated  entity.  See  "Results of
Operations"  below  for  additional  discussions  pertaining  to  the  Company's
financial and operating performance.

       The Company's  net cash  provided by operating  activities grew to $122.9
million  and  $390.0  million  during  the three and nine  month  periods  ended
September 30, 2001,  respectively,  representing increases of six percent and 37
percent,  as compared to net cash  provided by  operating  activities  of $115.7
million  and  $285.1  million  for the same  respective  periods  in  2000.  The
increases in net cash provided by operating  activities  primarily resulted from
favorable  commodity  prices  and net  reductions  in working  capital  used for
operating activities. These positive results were partially offset by production
declines  primarily  resulting  from prior year  asset  divestitures,  temporary
supply,   demand  and  infrastructure  issues  and  increased  production  costs
primarily resulting from declines in third party gas processing and treating net
margins and increases in production taxes, ad valorem taxes and field fuel costs
associated with higher commodity prices. During the three and nine month periods
ended  September  30, 2001,  the Company used its net cash provided by operating
activities,  together  with proceeds from the  dispositions  of assets,  to fund
$125.7  million and $364.4  million,  respectively,  of additions to oil and gas
properties;  to repurchase  408,200  shares of the Company's  common stock at an
average  price of $14.60 per share and 830,400  shares of the  Company's  common
stock at an  average  price of $15.69  per  share,  respectively;  and for other
general corporate needs.

       The Company  strives  to  maintain  its  outstanding  indebtedness  at  a
moderate  level in order to provide  sufficient  financial  flexibility  to fund
future  opportunities.  The Company's total book capitalization at September 30,
2001  was  $2.7   billion,   consisting  of  total  debt  of  $1.5  billion  and
stockholders'  equity  of $1.2  billion.  Debt as a  percentage  of  total  book
capitalization was 57 percent at September 30, 2001 as compared to 64 percent at
December 31, 2000.  Total  outstanding  indebtedness  declined by $24.2  million
during the nine months ended September 30, 2001.

Drilling Highlights

       During the first nine months of 2001, the Company spent $364.4 million on
capital expenditures including $170.2 million for development activities, $147.9
million for  exploration  activities  and $46.3 million on  acquisitions.  While
development  activities  include  the costs of related  facilities,  exploration
activities  include  geological and geophysical  data purchases and acquisitions
include the costs of leasing unproved properties,  the majority of the Company's
capital  expenditures is spent on drilling wells. The following tables summarize
the  Company's  development  drilling and  exploration  and  extension  drilling
activities for the nine months ended September 30, 2001.

                                       22




                        PIONEER NATURAL RESOURCES COMPANY




                                                          Development Drilling
                               ----------------------------------------------------------------------
                               Beginning Wells     Wells     Successful   Unsuccessful   Ending Wells
                                 in Progress       Spud         Wells        Wells       In Progress
                               ---------------   ---------   ----------   ------------   ------------

                                                                          
Gulf of Mexico/Gulf Coast.....         3              19          16            -              6
Permian Basin.................        42             127         129             11           29
Mid-Continent.................         3              34          33            -              4
                                  ------           -----       -----         ------        -----
       Total Domestic.........        48             180         178             11           39
                                  ------           -----       -----         ------        -----

Argentina.....................         1              22          19            -              4
Canada........................         3              25          26            -              2
                                  ------           -----       -----         ------        -----
       Total Worldwide........        52             227         223             11           45
                                  ======           =====       =====         ======        =====




                                                     Exploration/Extension Drilling
                               ----------------------------------------------------------------------
                               Beginning Wells     Wells     Successful   Unsuccessful   Ending Wells
                                 in Progress       Spud         Wells        Wells       In Progress
                               ---------------   ---------   ----------   ------------   ------------

                                                                          
Gulf of Mexico/Gulf Coast....          8              18          13              5            8
Permian Basin................          1               1           1            -              1
                                  ------           -----       -----         ------        -----
       Total Domestic........          9              19          14              5            9
                                  ------           -----       -----         ------        -----

Argentina....................          1              32          20              9            4
Canada.......................          5              20          14             11          -
South Africa.................          2               2           1              2            1
Gabon........................        -                 1         -              -              1
Tunisia......................        -                 1         -                1          -
                                  ------           -----       -----         ------        -----
       Total Worldwide.......         17              75          49             28           15
                                  ======           =====       =====         ======        =====


       Domestic.  The Company spent $218.8 million  during the first nine months
of 2001 on  acquisition,  drilling  and  seismic  activities  in the Gulf Coast,
Permian Basin and Mid-Continent areas of the United States.

       Gulf of Mexico/Gulf Coast Area.  In the Gulf  of Mexico/Gulf Coast  area,
the Company spent $170.0 million of  acquisition,  drilling and seismic  capital
primarily in the deepwater Gulf of Mexico,  the Gulf of Mexico shelf, the Inland
Bays of South  Louisiana,  the East Texas  Bossier  Play and the Pawnee field in
South Texas.

       In the deepwater  Gulf of Mexico,  the Company has sanctioned three major
development  projects that are in progress as of September 30, 2001.  First, the
TotalFinaElf-operated   Aconcagua   and  the   Marathon-operated   Camden  Hills
discoveries  in  Mississippi  Canyon are being jointly  developed as part of the
Canyon Express gas project. Facilities construction is underway and installation
has commenced for the  TotalFinaElf-operated  Canyon  Express  subsea  gathering
system with  production  scheduled to begin  during the second  quarter of 2002.
Wells will be brought on sequentially and are expected to achieve a peak rate of
approximately 110 MMcf of natural gas per day and 180 Bbls of condensate per day
net to the Company.  During October 2001, the Company  announced the acquisition
of an incremental  interest in Aconcagua and the Canyon Express gathering system
for $25.5  million,  subject to normal post-  closing  adjustments.  Also during
October  2001,  the Company  entered  into gas price  hedges on the  incremental
production acquired for 2003 through 2005 at a NYMEX gas price of $3.45 per Mcf.
The  Company  now owns a 23.5  percent  equity  interest  in the Canyon  Express
gathering  system, a 37.5 percent working interest in Aconcagua and a 33 percent
working interest in Camden Hills. Second, at the Dominion-operated  Devils Tower
development project in Mississippi Canyon, the Company  successfully drilled two
wells to explore for new  reserves in  previously  undrilled  reservoirs  and to
further extend previously tested zones. Subsequently, the project was sanctioned
as a spar development  project with the owners leasing a spar from a third party
for the life of the field.  Construction  of the spar is underway and production
is  anticipated  to begin during the second  quarter of 2003.  The wells will be
brought on sequentially  with peak production  reaching 8,000 to 10,000 BOEs per
day net to the Company's interest.  Also during  2001,  the  Company acquired an

                                       23




                        PIONEER NATURAL RESOURCES COMPANY


incremental  interest in Devils  Tower,  increasing  its working  interest to 25
percent.  Finally,  the Mariner-  operated  Falcon  project,  which was recently
sanctioned,  was successfully  drilled and sidetracked  during 2001. The Company
owns a 45 percent  working  interest in Falcon and was the  apparent  successful
bidder on 21 deepwater  Gulf of Mexico  blocks,  12 of which are near the Falcon
discovery that the Company shares with its partner,  Mariner. Initial production
from  Falcon is  anticipated  during the first  quarter of 2003 at initial  peak
rates of 79 MMcf of natural gas per day and 220 Bbls of  condensate  per day net
to the  Company's  interest.  In addition  to these  development  projects,  the
Company  also  successfully  drilled the  Dominion-operated  Turnberry  prospect
during 2001.  However,  sidetrack  operations  on the Turnberry  discovery  were
unsuccessful  and  evaluations  of  the  initial  wellbore  are in  progress  to
determine if the discovery has  commercial  quantities  of  hydrocarbons.  Costs
associated  with the  sidetrack  were  charged to  exploration  and  abandonment
expense  during the second quarter of 2001.  Also, the Company  drilled its Argo
prospect during 2001 which was unsuccessful.  Drilling is currently  underway on
its  Marathon-operated  Ozona Deep  prospect,  which  should  reach target depth
during the fourth quarter.  The Company does not plan on drilling any additional
deepwater  Gulf of  Mexico  prospects  during  the  fourth  quarter  of 2001 and
currently plans on drilling two new deepwater  prospects  during 2002.  However,
significant  capital  expenditures  will  be  required  to  complete  the  three
aforementioned  development  projects as well as any further exploration success
related to wells currently drilling or any future deepwater prospects drilled.

       On the  Gulf of Mexico  shelf,  the Company has  participated in drilling
five prospects during the first nine months of 2001 in addition to initiating an
extensive production  optimization program at the Company's Inland Bay fields in
Southern  Louisiana.  First, the  Texaco-operated  Cyrus prospect was sanctioned
during 2001 and  development  plans are  underway  with  production  expected to
commence  during  the fourth  quarter  of 2002 at  initial  rates of 2.3 MMcf of
natural gas per day and 360 Bbls of  condensate  per day,  net to the  Company's
interest.  The Company has a 5.7 percent working interest in Cyrus.  Second, the
Hall Houston-operated  Oneida prospect was successfully drilled and is currently
being completed.  Initial  production is anticipated during the first quarter of
2002 at rates of 1.1 MMcf of natural  gas per day and 30 Bbls of oil per day net
to the Company's 13.7 percent working interest.  Third, the Company participated
in the Spinnaker-operated Stirrup prospect during 2001, where the Company owns a
25 percent working interest. An initial discovery well was drilled and tested at
gross rates over 21 MMcf of natural gas per day and 130 Bbls of  condensate  per
day. A second well is currently  being drilled . The Company  anticipates  first
production  in June 2002 at initial rates of 2.7 MMcf of natural gas per day and
20 Bbls of condensate per day net to the Company's interest. Fourth, the Company
drilled its Cruiser  prospect  that was plugged and abandoned  since  commercial
quantities  of  hydrocarbons  were not  present.  The Company  owns a 70 percent
working  interest in the Cruiser  prospect.  Finally,  the Company is  currently
drilling its Malta prospect where results are expected during the fourth quarter
of 2001. The Company has a 67.5 percent working  interest in the Malta prospect,
but is only paying 50 percent of the costs  before  casing  point on the initial
well. In addition to the activity on the Gulf of Mexico shelf,  the Company also
drilled an exploratory  dry hole in its Inland Bay fields in South Louisiana and
initiated an extensive  workover and recompletion  program in these fields.  The
Company has been applying new technology to the fields in an attempt to identify
any  untapped  potential in the multiple pay zones of these fields that may have
been missed over the years.  Results in the program have been encouraging with a
production  increase of  approximately  1,500 BOE per day being achieved  during
2001. The program will continue into the fourth quarter of 2001 and next year as
capital  availability  permits.  The  Company  has no plans to spud any  further
exploration  wells on the shelf or the Inland Bays during the fourth  quarter of
2001, and 2002 drilling plans are currently being determined.

       In the onshore Gulf Coast  region of the  United States,  the Company has
concentrated  its  drilling  efforts in the  Bossier  Play in East Texas and the
Edwards Reef trend in South Texas. The Company plans to continue this effort for
the remainder of this year and also plans to spud its first  exploratory well in
North Louisiana  during the fourth quarter of 2001. Plans for 2002 are currently
being determined.

       Permian Basin area.  In the Permian Basin area,  the Company  spent $44.1
million of  acquisition,  drilling  and  seismic  capital  during the first nine
months of 2001. The Company concentrated its efforts on the Spraberry oil trend,
the Canyon gas play and the  recently  discovered  My-Way  field in Iron County,
Texas. The My-Way Clearfork discovery has generated  potentially 20 to 30 future
development  locations.  Drilling is  expected to continue in the Permian  Basin
area during the fourth quarter and into 2002.

                                       24




                        PIONEER NATURAL RESOURCES COMPANY


       Mid-Continent area.  In the Mid-Continent area, the Company expended $4.7
million of drilling  and seismic  capital  during the first nine months of 2001.
The Company's  development drilling in the Mid-Continent area is focused on West
Panhandle and Hugoton gas prospects.

       Argentina. In Argentina,  the Company spent $67.5 million of acquisition,
drilling and seismic  capital during the first nine months of 2001. The majority
of  costs  was  spent  in  the  Company's  drilling  program,   which  has  been
concentrated  in the Bajo Barda  Gonzalez  and the Loma Negra Norte areas of the
Neuquen Basin. Several successful extension wells have been drilled in each area
this year that have added additional future drilling locations. During the third
quarter,  the Company  completed  the drilling of a horizontal  well in the Bajo
Barda Gonzalez field that has produced  115,000 BOEs during the first 90 days of
production from a 1,290 foot horizontal section. The Company currently has three
additional horizontal wells drilling. The Company has also begun construction of
a 36 mile pipeline from the Loma Negra Plant to a major  transmission  line that
is expected to be  operational by the end of 2001 and will enable the Company to
deliver gas to markets  downstream of current system  bottlenecks.  In addition,
the Company  acquired 250,000 acres in the Anticlinal  Campamento,  Dos Hermanas
and La  Calera  areas  of the  Neuquen  Basin  during  2001 for  $12.6  million,
representing  5.3 MMBOE of proved  reserves and significant  future  exploration
opportunities.

       Canada.  In  Canada,  the  Company  spent  $34.2  million of acquisition,
drilling and seismic  capital during the first nine months of 2001. Most of this
capital was spent in the first  quarter in the  Chinchaga,  North  Chinchaga and
Martin  Creek  areas that are only  accessible  for  drilling  during the winter
months.  The Company drilled an extension well in the Lookout Butte field during
the third quarter that was unsuccessful.  Plans are currently  underway to begin
the 2001- 2002 winter drilling campaign late in the fourth quarter of 2001.

       Africa.  In  Africa,  the  Company  spent  $43.9 million of  drilling and
seismic capital during the first nine months of 2001 in South Africa,  Gabon and
Tunisia.

       South  Africa.  In  South  Africa,  the  Company  spent  $28.3 million of
drilling  and  seismic  capital  to  drill  two  wells  on its  Company-operated
Boomslang  prospect,  in which the  Company has a 49 percent  working  interest,
drill a gas  appraisal  well on the  Soekor-operated  E-BB  tract,  in which the
Company has a 40 percent working interest,  and acquire two 3-D seismic surveys.
The initial  Boomslang well was successful while the appraisal well was wet. One
of the two seismic  surveys was  acquired  over the  Boomslang  trend area where
several  other  prospects  have been  identified.  The Company will  continue to
evaluate the commercial feasibility of the Boomslang prospect using this new 3-D
data.  The appraisal  well was charged to exploration  and  abandonment  expense
during the second quarter of 2001. In addition,  the Company  drilled and tested
the E-BB2 gas well in the center of the Bredasdorp  Basin.  Results of this well
and other wells drilled in this trend are being assessed as part of a larger gas
development project that is currently being evaluated. The Company also acquired
a 3-D seismic  survey in the Port  Elizabeth  Trough Area of Block 14 during the
second  quarter of 2001.  During the fourth  quarter of 2001,  the seismic  data
acquired  earlier  this  year  is  being  analyzed  and  the  results  from  the
aforementioned  exploration  activities  are  being  evaluated.  Therefore,  the
Company  does not  anticipate  spending  significant  capital  during the fourth
quarter  of  2001  on  South  Africa  exploration  activities.   However,  three
exploration wells are currently planned for 2002.

       The partners in the  Soekor-operated  Sable oil  discovery,  in which the
Company now owns a 40 percent working interest,  have sanctioned the development
of the field. Production is scheduled to begin in the first quarter of 2003 with
expected production for the first year to average  approximately  11,600 Bbls of
oil per day net to the Company's  interest.  Drilling and completion  operations
will commence  during the fourth  quarter of 2001 and will  continue  until late
2002. The Company anticipates spending an additional $63 million on this project
prior to initial production.

       Gabon.  In Gabon, the Company spent $12.5 million of drilling and seismic
capital to drill and test the initial  exploratory  well on its Bigorneau  South
prospect,  located  offshore in the  Southern  Gabon Basin on its Olowi  permit.
Pioneer is the  operator of the 314,000  acre permit with a 100 percent  working
interest.   The  Company  has  entered  its  application  to  enter  the  Second
Exploration   Period  on  the  Olowi  Permit,   which  requires  two  additional
exploratory wells over a two-year period.  Seismic evaluations  continue on this
discovery  and the Company  plans to drill two to four  additional  wells on the
permit during 2002.


                                       25




                        PIONEER NATURAL RESOURCES COMPANY


       Tunisia.  In Tunisia,  the Company spent  $3.1 million of acquisition and
drilling  capital to drill its first  exploratory well in the Bazma permit which
was unsuccessful and subsequently plugged and abandoned. The Company acquired 50
percent of Eurogas  Corporation's  rights to explore  this permit along with the
Jorf and El Hamra permits by agreeing to pay 100 percent of their drilling costs
to casing point on the first two wells drilled in these permits. The Company has
taken over  operatorship of the permits.  This acquisition  provides the Company
with 2.7 million acres to pursue  exploration  opportunities in onshore Southern
Tunisia.

       In July 2001,  the Company announced that, subject to Tunisian government
approval,  it has  acquired a 30 percent  interest in the Anaguid  permit in the
Ghadames basin onshore  Southern  Tunisia for  approximately  $1.7 million.  The
Company will join Anadarko Petroleum  Corporation,  the operator of this permit,
and Nuevo Energy Company in exploring the 1.1 million-acre permit.

       Budgeted capital expenditures.  The Company's successful drilling results
during 2001 have led to revisions to the  Company's  capital  commitment  plans.
Based on  forecasted  2001 cash flows from  operating  activities  and follow-on
capital  requirements  associated  with  the  Company's  successful  exploration
programs,  the Company has  increased  its 2001 capital  expenditures  budget by
approximately 25 percent to $540 million from the $430 million budget originally
established.  This includes the recently announced acquisition of an incremental
interest in the Aconcagua  field and the Canyon  Express  gathering  system.  In
addition,  if the limited  partners  of each of the 46 Parker & Parsley  limited
partnerships  approve their merger with Pioneer USA, the Company will reflect an
additional $100 million of costs incurred for 2001, although such amount will be
funded 100 percent with common stock (see "Partnership mergers", below).

       The  Company  is  currently  in  the  process  of  approving  the capital
expenditure  budget for 2002, which is anticipated to be between $400 million to
$425 million based upon current commodity prices. The 2002 capital  expenditures
budget  includes  $200  million  of capital  earmarked  for  development  of the
Company's  deepwater  Gulf of Mexico  Canyon  Express,  Devils  Tower and Falcon
projects  and the  Company's  Sable oil  discovery  offshore  South  Africa (see
"Drilling  Highlights",  above).  Net to the Company's  interest,  the aggregate
production  contributed  by these  projects is  expected  to grow the  Company's
worldwide annual  production by 12 percent during 2002, to 46 MMBOE to 48 MMBOE,
and by 31 percent in 2003, to 60 MMBOE to 63 MMBOE.

Results of Operations

       Oil and gas revenues. Revenues from oil and gas operations totaled $198.1
million and $674.7 million for the three and nine month periods ended  September
30, 2001,  respectively,  compared to $228.6  million and $600.9 million for the
same  respective  periods in 2000.  The  decrease in  revenues  during the three
months ended September 30, 2001, as compared to the prior year third quarter, is
due to  commodity  price  decreases  and a five  percent  decline in  production
volumes.  The increase in revenues  during the nine months ended  September  30,
2001,  as compared to the prior year same  period,  is  reflective  of commodity
price  increases  which more than offset a four percent  decrease in  production
volumes that primarily resulted from prior year asset divestitures and temporary
supply,  demand and  infrastructure  issues  that are  described  in more detail
below.

       The following table  provides the Company's  volumes and average reported
price,  including the results of hedging activities for the three and nine month
periods ended September 30, 2001 and 2000:


                                       26




                        PIONEER NATURAL RESOURCES COMPANY



                                              Three months ended      Nine months ended
                                                 September 30,          September 30,
                                            ---------------------   ---------------------
                                               2001        2000        2001       2000
                                            ---------   ---------   ---------   ---------

                                                                    
       Production:
          Oil (MBbls)....................       3,029       3,156       9,329       9,359
          NGLs (MBbls)...................       2,039       2,168       5,838       6,371
          Gas (MMcf).....................      34,452      36,047      97,710     103,451
          Total (MBOE)...................      10,809      11,332      31,452      32,972
       Average daily production:
          Oil (Bbls).....................      32,920      34,307      34,172      34,157
          NGLs (Bbls)....................      22,158      23,565      21,383      23,252
          Gas (Mcf)......................     374,476     391,819     357,912     377,558
          Total (BOE)....................     117,491     123,175     115,208     120,335
       Average reported prices:
          Oil (per Bbl):
            United States................   $   25.15   $   23.31   $   24.93   $   21.37
            Argentina....................   $   24.99   $   30.95   $   25.09   $   29.32
            Canada.......................   $   23.70   $   28.58   $   23.80   $   27.72
            Worldwide....................   $   25.06   $   25.48   $   24.95   $   23.52
          NGLs (per Bbl):
            United States................   $   14.77   $   20.52   $   18.56   $   19.18
            Argentina....................   $   16.93   $   22.46   $   21.93   $   21.98
            Canada.......................   $   18.66   $   25.42   $   23.31   $   22.85
            Worldwide....................   $   15.01   $   20.73   $   18.87   $   19.37
          Gas (per Mcf):
            United States................   $    3.54   $    3.65   $    4.34   $    3.06
            Argentina....................   $    1.39   $    1.28   $    1.33   $    1.21
            Canada.......................   $    1.69   $    2.71   $    3.35   $    2.41
            Worldwide....................   $    2.66   $    2.87   $    3.40   $    2.49


       As discussed above,  oil and gas  revenues  for the  three  months  ended
September 30, 2001 were negatively  impacted by declining prices and, during the
nine months ended September 30, 2001, were favorably impacted by commodity price
increases. As compared to the three months ended September 30, 2000, the average
oil price  for the three  months  ended  September  30,  2001  decreased  by two
percent;  the average  NGL price  decreased  by 28 percent;  and the average gas
price  decreased  seven percent.  As compared to the nine months ended September
30,  2000,  the average oil price for the nine months ended  September  30, 2001
increased six percent; the average NGL price decreased by three percent; and the
average gas price increased by 37 percent.

       On a BOE basis,  average daily  production decreased  by five percent and
four percent  during the three and nine month periods ended  September 30, 2001,
respectively,  as compared to the same  periods in 2000.  Per BOE average  daily
production,  based on a third quarter to third quarter  comparison,  declined by
eight  percent  in  the  United  States,   where  the  Company  completed  asset
dispositions  during 2000,  production in Argentina decreased by one percent and
production in Canada increased by 19 percent. Comparing the first nine months of
2001 to the same period in 2000,  per BOE average daily  production  declined by
eight  percent in the United  States,  while  production in Canada and Argentina
increased by 13 percent and one percent, respectively. In addition to prior year
asset divestitures in the United States,  production levels were also negatively
impacted during 2001 by the Company's election not to recover ethane from United
States Mid Continent  area gas during  January 2001 (this  election  effectively
raised the Company's MMBtu content,  price  realizations  per Mcf of natural gas
and total revenue, but reduced production volumes by approximately 1,200 BOE per
day during  the  election  period);  severe  weather  in the  United  States Mid
Continent area during January 2001 which  hampered field  operations;  increased
hydroelectric  power  availability  in  Argentina  which  reduced the demand for
natural  gas  power  generation,  unscheduled  plant  downtime  at a  large  gas
purchaser in the Tierra del Fuego area in  Argentina;  and, in the Neuquen Basin
area in Argentina, unanticipated compressor maintenance.


                                       27




                        PIONEER NATURAL RESOURCES COMPANY


       Fourth quarter 2001 production volumes are expected to average 111 to 114
MBOE per day. The  anticipated  decrease in fourth quarter  production is due to
expected decreases in electricity demand in Argentina as the southern hemisphere
enters the lower-demand summer season.

       Hedging activities.  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.  The Company utilizes  commodity
derivative  instruments  (swaps and collar contracts) in order to (i) reduce the
effect  of the  volatility  of price  changes  on the  commodities  the  Company
produces and sells,  (ii) support the  Company's  annual  capital  budgeting and
expenditure  plans and (iii) lock in prices to protect the economics  related to
certain capital projects. On January 1, 2001, the Company adopted the provisions
of SFAS 133.  Although  SFAS 133 does not change the economics  associated  with
derivative  instruments in general or hedging  activities in particular,  it has
significantly  changed the  accounting for  derivative  instruments  and hedging
activities  and the  requirements  that  must be met in order  for a  derivative
instrument  to qualify for hedge  accounting  treatment.  See Note C of Notes to
Consolidated Financial Statements included in "Item 1. Financial Statements" for
specific  information  regarding  the  adoption  of SFAS  133 and the  Company's
hedging activities.

       Interest  and  other  revenue.  During  the  three and nine  months ended
September  30, 2001,  the Company  recorded  interest and other  revenue of $6.5
million and $22.6 million,  respectively,  as compared to $5.2 million and $14.1
million,  respectively,  during  the same  periods in 2000.  Interest  and other
revenue for the three months ended September 30, 2001 includes $4.5 million from
the  early  settlement  of a  contractual  right  received  as  part  of a prior
litigation  settlement.  Interest  and other  revenue for the nine months  ended
September 30, 2001 includes $7.3 million of mark-to- market gains  recognized on
the Company's BTU swap agreements. See Note C of Notes to Consolidated Financial
Statements included in "Item 1. Financial  Statements" for information regarding
the BTU swap agreements.

       Gain (loss)  on disposition  of assets.  During  the  three  months ended
September 30, 2001, the Company recorded an $88 thousand loss on the disposition
of assets and,  during the nine months ended  September  30,  2001,  the Company
recorded a gain of $8.7 million on the disposition of assets, as compared to net
gains of $24.2 million and $27.8 million during the same periods in 2000. During
the nine month period ended September 30, 2001, the Company recognized a gain of
$8.1 million from the sale of its remaining  investment in the common stock of a
non-affiliated entity. Similarly, the gains recognized during the three and nine
month periods ended  September 30, 2000,  were  primarily  comprised of gains of
$25.7 million and $34.4 million, respectively, from sales of the common stock of
the same non-affiliated entity.

       Production costs. During the three and nine month periods ended September
30,  2001,  total  production  costs  per BOE  increased  $.39 and $.95 per BOE,
respectively,  as compared to per BOE  production  costs of the same  periods in
2000.  The  increase  in  production  costs per BOE for the three and nine month
periods  ended  September  30, 2001, as compared to the same periods in 2000, is
primarily  due to declines in third party gas  processing  and treating  margins
and, during the nine months ended  September 30, 2001, to significant  increases
in per BOE production taxes, ad valorem taxes and field fuel expenses, which are
directly correlated with commodity prices.


                                            Three months ended   Nine months ended
                                                September 30,      September 30,
                                            ------------------   ------------------
                                              2001       2000      2001       2000
                                            -------    -------   -------    -------
                                                           (per BOE)

                                                                
    Lease operating expense..............   $  2.89    $  2.45   $  2.61    $  2.33
    Taxes:
       Production........................       .61        .79       .81        .71
       Ad valorem........................       .52        .34       .47        .34
    Field fuel expenses..................       .60        .70      1.00        .59
    Workover costs.......................       .16        .11       .18        .15
                                             ------     ------    ------     ------
          Total production costs.........   $  4.78    $  4.39   $  5.07    $  4.12
                                             ======     ======    ======     ======


       The Company expects fourth quarter 2001 production costs to average $4.50
to $4.75 per BOE based on current NYMEX strip prices for oil and gas.

                                       28




                        PIONEER NATURAL RESOURCES COMPANY


       Depletion,  depreciation  and  amortization  expense.   Total  depletion,
depreciation  and  amortization  expense per BOE was $5.56 and $5.39  during the
three and nine month periods ended September 30, 2001, respectively, as compared
to $4.99 and $4.91 during the three and nine month periods  ended  September 30,
2000.  Depletion expense,  the largest component of depletion,  depreciation and
amortization,  was  $5.26  and $5.05  per BOE  during  the three and nine  month
periods ended September 30, 2001,  respectively,  as compared to $4.65 and $4.56
per BOE during the same periods in 2000.  The increase in depletion  expense per
BOE  during  2001 is  primarily  associated  with  decreases  in  United  States
production,  which has a lower cost basis,  relative to combined  Argentine  and
Canadian  production,  and to downward  revisions to proved reserves during 2001
resulting from lower commodity prices.

       The Company  expects  fourth  quarter  2001  depletion,  depreciation and
amortization expense to average $5.50 to $5.75 per BOE.

       Exploration   and   abandonments/geological   and   geophysical    costs.
Exploration and abandonments/geological and geophysical costs increased to $24.7
million  and  $94.1  million  during  the  three and nine  month  periods  ended
September 30, 2001,  respectively,  from $23.4 million and $64.2 million  during
the same  respective  periods in 2000. The increase during the nine months ended
September  30,  2001,  as compared  to the same  period in 2000,  is largely the
result of a larger 2001 exploratory drilling budget and increased geological and
geophysical expenditures that are supportive of future exploratory drilling.

       The following  table provides  the Company's  geological and  geophysical
costs,  exploratory  dry hole  expense,  lease  abandonments  expense  and other
exploration  expense for the three and nine month  periods  ended  September 30,
2001 and 2000:


                                                   United                            Other
                                                   States    Argentina    Canada    Foreign     Total
                                                  --------   ---------   --------   --------   --------
                                                                      (in thousands)
                                                                                
   Three months ended September 30, 2001:
     Geological and geophysical costs..........   $  8,463   $    827    $    163   $  2,617   $ 12,070
     Exploratory dry holes.....................      6,764      1,291       1,195      1,589     10,839
     Leasehold abandonments and other..........      1,065        610          82        -        1,757
                                                   -------    -------     -------    -------    -------
                                                  $ 16,292   $  2,728    $  1,440   $  4,206   $ 24,666
                                                   =======    =======     =======    =======    =======
   Three months ended September 30, 2000:
     Geological and geophysical costs.........    $  6,368   $  1,842    $    270   $  2,506   $ 10,986
     Exploratory dry holes....................       7,103      1,518          16        -        8,637
     Leasehold abandonments and other.........       2,240      1,351         217        -        3,808
                                                   -------    -------     -------    -------    -------
                                                  $ 15,711   $  4,711    $    503   $  2,506   $ 23,431
                                                   =======    =======     =======    =======    =======
   Nine months ended September 30, 2001:
     Geological and geophysical costs..........   $ 22,264   $  2,283    $    662   $ 11,395   $ 36,604
     Exploratory dry holes.....................     25,043      3,423       6,550     10,030     45,046
     Leasehold abandonments and other..........      3,260      7,505       1,709          8     12,482
                                                   -------    -------     -------    -------    -------
                                                  $ 50,567   $ 13,211    $  8,921   $ 21,433   $ 94,132
                                                   =======    =======     =======    =======    =======
   Nine months ended September 30, 2000:
     Geological and geophysical costs.........    $ 16,858   $  3,712    $    809   $  6,204   $ 27,583
     Exploratory dry holes....................      10,760      5,698         876        -       17,334
     Leasehold abandonments and other.........       4,389     13,318       1,571          7     19,285
                                                   -------    -------     -------    -------    -------
                                                  $ 32,007   $ 22,728    $  3,256   $  6,211   $ 64,202
                                                   =======    =======     =======    =======    =======




                                       29




                        PIONEER NATURAL RESOURCES COMPANY


       The Company  expects  fourth  quarter  2001  exploration  and abandonment
expense to be $20 million to $40 million. The range estimated for fourth quarter
2001 exploration and abandonment  expense is primarily  dependent on the outcome
of the  three  Gulf of  Mexico  wells  that  are  currently  being  drilled  and
evaluated:  exploratory  wells on the  Malta  and Ozona  Deep  prospects  and an
appraisal well on the Stirrup  discovery.  See "Drilling  Highlights"  above for
further  discussions   regarding  the  Company's   exploration  and  abandonment
activities during 2001.

       General and administrative expense.  General and  administrative  expense
was $8.2 million and $26.6 million for the three and nine months ended September
30, 2001,  respectively,  as compared to $6.5 million and $23.3  million for the
same  periods in 2000,  representing  increases  of 25 percent  and 14  percent,
respectively.  On a per BOE basis,  general and administrative  expense was $.75
and $.85 during the three and nine month  periods  ended  September 30, 2001, as
compared to $.58 and $.71 for the same periods in 2000.

       The Company  expects  fourth  quarter  2001  general  and  administrative
expense to be approximately $9 million.

       Interest expense.  Interest expense  for the three  and nine months ended
September  30,  2001 was $32.3  million  and $102.1  million,  respectively,  as
compared to $40.8 million and $122.4 million, respectively, for the same periods
in 2000.  The  decreases  in  interest  expense  during the three and nine month
periods  ended  September  30,  2001,  as compared to the same  periods in 2000,
reflect  decreases of $112.0 million and $151.7  million,  respectively,  in the
Company's average debt outstanding,  the capitalization of $1.5 million and $4.2
million of interest  during the three and nine month periods ended September 30,
2001,  respectively,  and decreases in the Company's  weighted average borrowing
rates of 63 basis points and 39 basis points, respectively.

       The Company was a  party to interest  rate swap  agreements that hedged a
portion  of the  Company's  fixed  rate  debt.  During  the three and nine month
periods ended  September 30, 2001, the interest rate swap  agreements  decreased
the Company's  interest expense by $2.4 million and $3.1 million,  respectively.
The swap  agreements  had no impact on interest  expense  during the three month
period ended September 30, 2000, and decreased the Company's interest expense by
$.3 million during the nine months ended  September 30, 2000.  During  September
2001,  the Company  terminated the interest rate swap  agreements  that hedged a
portion of its fixed rate  debt.  The  Company  received  $23.3  million of cash
proceeds,  including accrued interest, from the termination of the interest rate
swap  agreements,  which was used to reduce  borrowings under the Company's $575
million  credit  facility (the "Credit  Facility").  Associated  therewith,  the
Company recorded a $21.2 million increase to the carrying value of its long-term
debt.  This carrying value increment will be amortized as reductions to periodic
interest  expense during the remaining  original terms of the interest rate swap
agreements.  See Note C of Notes to Consolidated  Financial  Statements included
in"Item 1. Financial  Statements" for additional  information  pertaining to the
Company's interest rate swap agreements.

       The Company  expects fourth  quarter  interest expense  to range from $31
million to $32 million.

       Other costs and expenses. Other costs and expenses for the three and nine
month  periods  ended  September  30, 2001 was $2.0  million and $29.1  million,
respectively,  compared to $15.5  million and $60.4 million for the same periods
in 2000. The decrease in other costs and expenses is primarily  attributable  to
fluctuations   in   mark-to-market    provisions   on   financial   instruments.
Mark-to-market  provisions  during  the  three  and  nine  month  periods  ended
September  30, 2001  included  the  ineffective  portions of changes in the fair
values of commodity  derivatives  designated as cash flow hedges,  which reduced
other expense by $374 thousand and $224 thousand during the three and nine month
periods ended September 30, 2001.  Additionally,  an increase in the liabilities
associated with the Company's BTU swap agreements of $6.6 million was recognized
during the nine months ended September 30, 2001. During the three and nine month
periods ended September 30, 2000,  mark-to-market  provisions included increases
in the  liabilities  associated with non- hedge commodity call contracts of $3.1
million and $41.1 million, respectively; increases in the liabilities associated
with the  Company's  BTU swap  agreements  of $10.1  million and $12.9  million,
respectively;  and increases in the liabilities  associated with forward foreign
currency swap agreements of $.3 million and $1.6 million, respectively. See Note
C of Notes to Consolidated  Financial  Statements included in "Item 1. Financial
Statements"  for additional  information  pertaining to the Company's  financial
instruments that are recorded at fair value.


                                       30




                        PIONEER NATURAL RESOURCES COMPANY


       Income tax provisions (benefits). During the three and nine month periods
ended September 30, 2001, the Company  recognized  income tax provisions of $2.4
million and $5.4  million,  respectively,  as  compared to tax  benefits of $3.9
million and $5.8 million for the three and nine month  periods  ended  September
30, 2000,  respectively.  The  Company's  income tax  provisions  and income tax
benefits for the three and nine month periods ended September 30, 2001 and 2000,
respectively,   are  primarily  associated  with  the  Company's  operations  in
Argentina and Canada. Due to continuing  uncertainties  regarding the likelihood
that certain of the Company's net operating loss  carryforwards and other credit
carryforwards may expire unused, the Company has established  valuation reserves
to reduce the carrying value of its deferred tax assets.  The Company's deferred
tax  valuation  reserves  are  reduced  when  the  Company's  financial  results
establish  that  deferred tax assets  previously  reserved will be used prior to
their expiration.

       The Company  expects that its cash taxes will range from $1 million to $3
million during the fourth quarter of 2001.

       Extraordinary item - gain (loss) on early extinguishment of debt. On July
2, 2001, the Company redeemed the remaining $22.5 million of outstanding 11-5/8%
Senior  Subordinated  Discount  Notes  due  July 1,  2006 and  $6.8  million  of
outstanding  10-5/8%  Senior  Subordinated  Notes  due July 1,  2006.  The total
redemption was $31.0 million and was funded from the Company's  Credit Facility.
Associated with this redemption, the Company recognized an extraordinary gain of
$1.4 million for the three and nine month periods ended September 30, 2001.

       During the  second quarter  of 2000,  the  Company  replaced its existing
credit facility ("Prior Credit  Facility") with the Credit Facility.  Associated
therewith,  the Company recognized a $12.3 million extraordinary loss, comprised
of deferred costs associated with the Prior Credit Facility.

Capital Commitments, Capital Resources and Liquidity

       Capital  commitments.  The  Company's  primary  needs  for  cash  are for
exploration,  development and acquisitions of oil and gas properties,  repayment
of  principal  and  interest on  outstanding  indebtedness  and working  capital
obligations.

       The Company's  cash expenditures for  additions to oil and gas properties
totaled  $364.4  million  during the first three  quarters of 2001.  This amount
includes  $46.3  million for the  acquisition  of prospects and  properties  and
$318.1   million  for   development   and   exploratory   drilling  and  seismic
expenditures.  Drilling and seismic  expenditures  during the three  quarters of
2001 included  $199.2 million in the United States,  $52.6 million in Argentina,
$25.0 in  Canada,  $27.5  million  in South  Africa  and $13.8  million in other
international areas. See "Drilling Highlights" above for specific discussions of
capital investments made during the first nine months of 2001.

       Funding for  the Company's  working  capital  obligations is  provided by
internally-generated  cash flow.  Funding for the  repayment  of  principal  and
interest on outstanding  debt may be provided by any  combination of internally-
generated  cash flows,  proceeds from the  disposition  of assets or alternative
financing sources as discussed in "Capital resources" below.

       The Company  expects fourth  quarter 2001  costs incurred for oil and gas
producing activities to range from $140 million to $150 million.

       Capital resources.  The Company's primary  capital resources are net cash
provided  by  operating  activities,  proceeds  from  financing  activities  and
proceeds from asset dispositions. The Company expects that its capital resources
will be sufficient to fund its remaining capital commitments in 2001.

                                       31




                        PIONEER NATURAL RESOURCES COMPANY



       Operating  activities.  Net cash  provided  by  operating  activities was
$122.9  million  and  $390.0  million  during  the three and nine  months  ended
September 30, 2001, respectively,  as compared to net cash provided by operating
activities  of $115.7  million and $285.1  million for the same periods in 2000.
The increase in net cash  provided by operating  activities  primarily  resulted
from favorable  commodity prices during the nine months ended September 30, 2001
and net reductions in working  capital.  These  positive  results were partially
offset by production  declines and increased  production costs (see "Oil and gas
revenues," above).

       Financing activities.  The Company had an  outstanding balance  under its
Credit Agreement at September 30, 2001 of $238.9 million (including outstanding,
undrawn  letters  of  credit of $27.9  million),  leaving  approximately  $336.1
million of unused borrowing capacity immediately available.

       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 Company's Board of Directors.

       Asset dispositions.  During the three and nine months ended September 30,
2001, proceeds from asset dispositions  totaled $57.8 million and $73.0 million,
respectively,  as  compared  to $65.2  million  and $93.7  million  for the same
periods in 2000.  During the three months ended  September 30, 2001, the primary
source of the  Company's  proceeds  from the  disposition  of  assets  was $35.8
million of proceeds  from the  termination  of a portion of the  Company's  2003
natural gas hedges and $21.2 million of proceeds,  net of accrued  interest,  on
the  termination of the Company's  interest rate swaps  designated as fair value
hedges (see "Results of Operations - Interest expense",  above). During the nine
month period ended  September  30, 2001,  the proceeds  from the  aforementioned
hedge  terminations  and  the  sale of  613,215  shares  of  common  stock  of a
non-affiliated  entity  for  $12.7  million  were  the  primary  sources  of the
Company's proceeds from asset dispositions.  The primary source of proceeds from
asset dispositions during the three months ended September 30, 2000 was the sale
of 2,000,000 shares of common stock of a non-affiliated entity for $40.6 million
and the  divestiture  of certain  United States oil and gas properties for $24.2
million.  During the nine months ended September 30, 2000, the sale of 3,404,946
shares  of common  stock of a  non-affiliated  entity  for  $59.7  million,  the
divestiture  of certain  United States oil and gas  properties for $24.9 million
and the sale of a Midland  office  building  for $4.5  million  were the primary
sources of the  Company's  proceeds from asset  dispositions.  The proceeds from
these   dispositions  were  used  to  reduce  the  Company's   outstanding  bank
indebtedness and for general working capital purposes.

       Liquidity.  At September 30, 2001,  the Company had $20.7 million of cash
and cash  equivalents  on hand,  compared to $26.2 million at December 31, 2000.
The Company's  ratio of current assets to current  liabilities  was 1.06 to 1 at
September 30, 2001 and .88 to 1 at December 31, 2000.

Other Items

       Partnership mergers.  On October 22, 2001,  the Company mailed definitive
materials (the "proxy  statement/prospectus") to solicit the approval of limited
partners of 46 Parker & Parsley limited partnerships of an agreement and plan of
merger among Pioneer,  Pioneer USA and those limited  partnerships.  The special
meetings of the limited partners to consider and vote on the merger proposal are
scheduled  for  December  20,  2001.  The record  date to  identify  the limited
partners who are  entitled to notice of and to vote at the special  meetings was
September  21, 2001.  Each  partnership  that approves the agreement and plan of
merger and the other related  merger  proposals will merge with and into Pioneer
USA.  As a result,  the  partnership  interests  of those  partnerships  will be
converted into the right to receive Pioneer common stock.

       The proxy  statement/prospectus  is non-binding and is subject to,  among
other  things,  consideration  of offers  from  third  parties to  purchase  any
partnership or its assets and the majority  approval of the limited  partnership
interests  in each of 44  partnerships  and  two-thirds  approval of the limited
partnership interests in each of two partnerships.

                                       32




                        PIONEER NATURAL RESOURCES COMPANY



       Stockholder's rights plan.  During the third quarter of 2001, the Company
announced  that its board of directors  ("Board of  Directors")  authorized  the
adoption  of  a  stockholders  rights  plan  (the  "Plan").  The  Plan  includes
safeguards against partial or two-tiered tender offers,  squeeze-out mergers and
other  potentially  abusive  takeover  tactics  that  limit the  ability  of all
stockholders to realize the long-term value of their investment in Pioneer.

       Under the Plan,  each holder of  Pioneer common stock  and each holder of
exchangeable  shares issued by Pioneer  Natural  Resources  Canada,  Inc. at the
close of business on July 31, 2001, automatically received a distribution of one
right for each share of common  stock or  exchangeable  share  held.  Each right
entitles the holder to purchase a new series of junior  participating  preferred
stock.  Because  the  rights may be  redeemed  by the Board of  Directors  under
certain  circumstances,  they  should  not  interfere  with any  merger or other
business combination approved by the Board of Directors.

       The issuance of the  rights is not  taxable to the  stockholders,  has no
dilutive effect,  will not affect Pioneer's reported earnings per share and will
not change the way the common stock or exchangeable shares are currently traded.

Item 3.     Quantitative and Qualitative Disclosures About Market Risk (1)

       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 fiscal year ended December 31,
2000. 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
fiscal year ended December 31, 2000.

       The following  disclosures  provide  specific  information about material
changes that have occurred since December 31, 2000 in the Company's portfolio of
financial instruments. The Company may recognize future earnings gains or losses
on these instruments from changes in market interest rates or commodity prices.

       Interest rate sensitivity.  During  May 2001,  the  Company  entered into
interest rate swap  agreements  to hedge the fair value of the Company's  8-1/4%
Senior Notes due August 15, 2007 (the "8-1/4% Swap"). The 8-1/4% Swap agreements
were for an aggregate  notional  amount of $150.0 million of debt;  commenced on
May 29, 2001; were to mature on August 15, 2007;  required the counterparties to
pay the Company a fixed  annual rate of 8-1/4  percent on the  notional  amount;
and,  required the Company to pay the  counterparties  a variable annual rate on
the  notional  amount  equal to the  three-month  LIBOR plus a weighted  average
margin of 238.1 basis points. On September 21, 2001, the Company  terminated the
8-1/4% Swap and its interest rate swap  agreements  that hedge the fair value of
the Company's 8-7/8% Senior Notes for cash proceeds of $23.3 million,  including
accrued interest. Additionally, during the nine months ended September 30, 2001,
the Company  entered into  interest  rate swap  agreements to hedge the interest
rate volatility  associated with certain of the Company's  variable-rate  credit
agreement  indebtedness  (the "Variable  Rate Swap").  The terms of the Variable
Rate Swap agreements  provide for an aggregate notional amount of $55 million of
debt;  commenced  on May 21,  2001  and  mature  on May 20,  2002;  require  the
counterparties  to pay the Company a variable rate equal to the six-month  LIBOR
plus 125 basis points;  and,  require the Company to pay the  counterparties  an
average annual rate of 5.43 percent on the notional amount.  As of September 30,
2001,  the fair value of the Variable  Rate Swap  agreements  was a liability of
$519 thousand.

       Commodity price sensitivity.  During the  first nine months of 2001,  the
Company  entered into  additional oil and gas hedge  derivatives.  The following
tables provide information about the Company's oil and gas derivative  financial
instruments that the Company was a party to as of September 30, 2001.

       See Note C 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
and gas commodity prices.

                                       33




                        PIONEER NATURAL RESOURCES COMPANY


       The Company  continues to be a  party to certain BTU swap agreements that
mature at the end of 2004. The terms of the BTU swap agreements  provide for the
Company  to be paid ten  percent of the NYMEX oil price and to pay the NYMEX gas
price on a notional 13,036 MMBtu daily gas volume.  These BTU swap agreements do
not qualify for hedge accounting treatment. Prior to June 30, 2001, the BTU swap
agreements were presented in both of the accompanying Oil Price  Sensitivity and
Gas Price Sensitivity tables,  since their fair values were sensitive to changes
in the market prices of each  commodity.  During 2001, the Company  entered into
offsetting swap agreements that have fixed the prices that are receivable to and
payable by the Company  under the BTU swap  agreements.  Consequently,  the fair
values of the  Company's  BTU swap  agreements,  which  represent  a  discounted
liability  to the Company of $21.1  million as of  September  30,  2001,  are no
longer  sensitive to changes in oil or gas commodity  prices.  The  undiscounted
future  settlement  obligations of the Company under the BTU swap agreements are
$1.5 million  during the three months ending  December 31, 2001 and $7.2 million
per year for each of 2002, 2003 and 2004.

                                       34




                        PIONEER NATURAL RESOURCES COMPANY


                        Pioneer Natural Resources Company
                              Oil Price Sensitivity
            Derivative Financial Instruments as of September 30, 2001



                                                      2001        2002         2003    Fair Value
                                                   ---------   ---------   ---------   ----------
                                                      (in thousands, except volumes and prices)
                                                                           
Oil Hedge Derivatives:
  Average daily notional Bbl volumes (1):
   Swap contracts..............................       24,348       9,205       2,975    $ 20,301
      Weighted average per Bbl fixed price.....    $   27.98   $   26.51    $  24.02
   Collar contracts............................        2,000       4,959                $  2,719
      Weighted average short call per Bbl
        ceiling price..........................    $   31.43   $   28.56
      Weighted average long put per Bbl
        floor price............................    $   25.00   $   25.00
   Average forward NYMEX oil
     prices (2)................................    $   22.01   $   22.04    $  21.38
---------------


(1)   See Note C of Notes to Consolidated Financial Statements included in "Item
      1. Financial Statements" for hedge volumes  and weighted average prices by
      calendar quarter.

(2)   The average forward NYMEX oil prices are based on October 23,  2001 market
      quotes.

                        Pioneer Natural Resources Company
                              Gas Price Sensitivity
            Derivative Financial Instruments as of September 30, 2001


                                                      2001        2002       2003       2004     Fair Value
                                                   ---------   ---------   --------   --------   ----------
                                                            (in thousands, except volumes and prices)
                                                                                  
Gas Hedge Derivatives (1):
  Average daily notional MMBtu volumes (2):
   Swap contracts.............................       120,908     155,123     50,000    190,000    $161,470
      Weighted average per MMBtu fixed price..     $    4.31   $    4.24   $   4.07   $   3.98
   Collar contracts...........................        54,482      20,000                          $ 13,528
      Weighted average short call per MMBtu
        ceiling price.........................     $    2.74   $    6.00
      Weighted average long put per MMBtu
         contingent floor price...............     $    2.11   $    4.50
   Average forward NYMEX gas
     prices (3)...............................     $    2.81   $    3.15   $   3.53   $   3.63
---------------


(1)  To minimize  basis risk,  the Company enters into basis swaps for a portion
     of its gas hedges to connect 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
     option contracts and, accordingly, the effects of the basis swaps have been
     presented together with the associated contracts.

(2)  See Note C of Notes to Consolidated  Financial Statements included in "Item
     1. Financial  Statements" for hedge volumes and weighted  average prices by
     calendar quarter.

(3)  The average  forward NYMEX oil and gas prices are based on October 23, 2001
     market quotes.

       Other price sensitivity. During the nine months ended September 30, 2001,
the Company sold its  remaining  shares of  Prize Energy  Corp. common stock for
$12.7 million.

---------------

(1)  The information in this document includes  forward-looking  statements that
     are made pursuant to the Safe Harbor  Provisions of the Private  Securities
     Litigation Reform Act of 1995. Forward-looking statements, and the business
     prospects of Pioneer Natural Resources Company,  are subject to a number of
     risks and  uncertainties  which may cause the Company's  actual  results in
     future periods to differ  materially from the  forward-looking  statements.
     These risks and uncertainties  include,  among other things,  volatility of
     oil and gas  prices,  product  supply and demand,  competition,  government
     regulation  or action,  litigation,  the costs and results of drilling  and
     operations,  the  Company's  ability to replace  reserves or implement  its
     business  plans,  access  to  and  cost  of  capital,  uncertainties  about
     estimates of reserves,  quality of technical data and environmental  risks.
     These and other risks are described in the Company's  2000 Annual Report on
     Form 10-K which is available from the United States Securities and Exchange
     Commission.

                                       35




                        PIONEER NATURAL RESOURCES COMPANY


                           PART II. OTHER INFORMATION


Item 1.     Legal Proceedings

        As discussed in  Note E of  Notes to  Consolidated  Financial Statements
included in "Item 1.  Financial  Statements",  the Company is a party to various
legal actions  incidental to its business.  The probable damages from such legal
actions are not expected to be in excess of 10 percent of the Company's  current
assets and the Company believes none of these actions to be material.

Item 6.     Exhibits and Reports on Form 8-K

Exhibits

3.1    -   Certificate of Designation of Series A Junior Participating Preferred
           Stock  (incorporated by reference to  Exhibit A to Exhibit 4.1 to the
           Company's  Registration  Statement on  Form 8-A,  File No. 001-13245,
           filed with the SEC on July 24, 2001).

4.1    -   Rights  Agreement  dated  July  24,  2001,  between  the  Company and
           Continental  Stock  Transfer  &  Trust   Company,   as  Rights  Agent
           (incorporated  by  reference  to   Exhibit  4.1   to  the   Company's
           Registration  Statement on  Form 8-A,  File No. 001-13245, filed with
           the SEC on July 24, 2001).

Reports on Form 8-K

        During the  three months ended  September 30,  2001,  the  Company filed
Current  Reports on Form 8-K on July 24, 2001,  August 1, 2001 and September 26,
2001,  respectively.  The Form 8-K filed on July 24 announced,  under Item 5 and
Item 7, the Company's adoption of a stockholders rights plan. The Form 8-K filed
on August 1  announced,  under Item 7 and Item 9, the  Company's  financial  and
operating  results for the three and six month periods ended June 30, 2001.  The
Form  8-K  filed  on  September  26,  announced,  under  Item 7 and  Item 9, the
Company's  updated  outlook for its third quarter 2001 based on partial  quarter
actual results.



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                        PIONEER NATURAL RESOURCES COMPANY


                               S I G N A T U R E S



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 thereto duly authorized.

                                           PIONEER NATURAL RESOURCES COMPANY





Date:       October 25, 2001           By:     /s/ Timothy L. Dove
                                           ----------------------------------
                                               Timothy L. Dove
                                               Executive Vice President and
                                               Chief Financial Officer


Date:       October 25, 2001           By:     /s/ Rich Dealy
                                           ----------------------------------
                                               Rich Dealy
                                               Vice President and Chief
                                               Accounting Officer




                                       37




                        PIONEER NATURAL RESOURCES COMPANY

Exhibit Index
                                                                         Page

3.1    -    Certificate of Designation of  Series A Junior Participating
            Preferred Stock  (incorporated by reference  to Exhibit A to
            Exhibit 4.1 to the Company's Registration  Statement on Form
            8-A, File No. 001-13245, filed with the SEC on July 24, 2001).

4.1    -    Rights Agreement dated July 24, 2001, between the Company and
            Continental  Stock  Transfer & Trust Company, as Rights Agent
            (incorporated  by reference  to Exhibit  4.1 to the Company's
            Registration Statement on Form 8-A, File No. 001-13245, filed
            with the SEC on July 24, 2001).



---------------


*  filed herewith





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