EXHIBIT 99.1


                                  NEWS RELEASE

                                                   Investor Relations Contacts:
                               Susan Spratlen or Chris Paulsen   (972) 444-9001


                   Pioneer Reports Second Quarter 2004 Results

Dallas,  Texas,  August 2, 2004 -- Pioneer Natural Resources Company ("Pioneer")
(NYSE:PXD) today announced financial and operating results for the quarter ended
June 30, 2004.

Pioneer  reported net income of $69.7 million,  or $0.58 per diluted share,  for
the second quarter of 2004 and $129.9 million,  or $1.08 per diluted share,  for
the six months  ended June 30, 2004.  For the same  periods  last year,  Pioneer
reported net income of $77.2  million,  or $0.65 per diluted  share,  and $161.4
million, or $1.36 per diluted share, respectively. For comparative purposes, the
2004 results  include  noncash  deferred income tax expense of $47.1 million and
$79.9  million  for the  three and six month  periods,  respectively,  while the
corresponding  2003 results  included nominal amounts of noncash deferred income
tax benefits.  The significant  year-to-year  change in deferred income taxes is
principally attributable to the Company's reversal of its deferred tax valuation
allowance in the U.S. during the third quarter of 2003.

Income  before  income  taxes and  cumulative  effect  of  change in  accounting
principles increased by $41.6 million, or 52%, and $70.5 million, or 47%, during
the three and six months ended June 30, 2004,  respectively,  as compared to the
same periods in 2003.

Cash flow from  operations  for the second  quarter was a record $264.7  million
compared  to $189.9  million for the same  period in 2003.  The Company  reduced
long-term  debt by $65.3  million  during  the  second  quarter of 2004 to $1.39
billion and  repurchased  320,000  shares of  outstanding  common stock bringing
year-to-date repurchases to 503,300 shares.

Second  quarter oil and gas sales  averaged  187,391  barrels per day (BPD) on a
barrel oil  equivalent  (BOE) basis and  represented  another record quarter for
Pioneer.  Second quarter oil sales  averaged  44,880 BPD and natural gas liquids
sales averaged 22,219 BPD. Gas sales in the second quarter  averaged 722 million
cubic feet per day (MMcfpd). Realized prices for oil and natural gas liquids for
the quarter were $27.94 and $22.92 per barrel, respectively.  Realized Argentine
oil prices  decreased during the second quarter due to the  implementation  of a
new formula for domestic oil prices to bring them in approximate parity with oil
exports  that are subject to a 20% export tax.  The  realized  price for gas was
$4.36 per thousand cubic feet (Mcf),  while North  American gas prices  averaged
$5.12 per Mcf.  Argentine gas prices  increased 14% during the second quarter as
compared to the prior year quarter,  as a result of the federal decree outlining
future gas price increases during the next two years becoming effective in May.

Second  quarter   production  costs  averaged  $5.60  per  BOE.  Second  quarter
production  costs  included  two  months  of  fixed  lease  operating   expenses
associated  with the phased  start-up  of the Devils  Tower  project in May.  As
additional  Devils Tower wells are  completed  during the  remainder of 2004 and
into 2005, the fixed costs per BOE of this project are expected to decline.

Exploration and abandonment costs of $39.7 million for the quarter include $17.2
million of dry hole and abandonment costs that were primarily  attributable to a
dry hole in Equatorial  Guinea and the abandonment of a well that was drilled in
2002 along the  southern  portion of the Olowi block oil  accumulation  in Gabon
which is not included in the current  development plan. Also included were $20.7
million  of  geologic  and  geophysical  expenses  including  seismic  costs  in
Argentina  and Alaska and $1.8  million of delay  rentals and  unproved  acreage
abandonments.

Income tax expense for the quarter resulted in a consolidated effective tax rate
of approximately 43%. The effective tax rate is higher than the U.S. federal and
state statutory rates (approximately  36.5%) primarily due to the aforementioned
international  exploration  and abandonment  expenses that created  deferred tax
benefits that cannot be recognized  until  sufficient  future  taxable income in
those countries is assured.








For the same  quarter  last  year,  Pioneer  reported  oil sales of 32,079  BPD,
natural  gas liquids  sales of 22,656 BPD and gas sales of 626 MMcfpd.  Realized
prices for the 2003 second  quarter  were $24.25 per barrel for oil,  $17.92 per
barrel for natural gas liquids and $4.15 per Mcf for gas,  while North  American
gas prices averaged $4.86 per Mcf.

Update on Proposed Merger with Evergreen Resources, Inc. ("Evergreen")

Integration  preparation  is  well  underway  with a  number  of  Pioneer's  key
employees  preparing to join Evergreen's team in Denver.  Evergreen is acquiring
two additional coil tubing rigs and two additional  fracture  stimulation  units
that will be instrumental in Pioneer's plan to accelerate  drilling in the Raton
Basin to approximately 300 wells per year.  Pioneer  anticipates that $8 million
to $10 million of general and  administrative  costs will be saved by  combining
the companies' operations.

"I am very pleased with our progress in the integration of the Pioneer/Evergreen
merger and look forward to a successful closing in September. Upon completion of
the merger,  we will have an even  stronger  base of North  American  assets,  a
longer reserve life, a robust inventory of lower-risk development  opportunities
and sufficient  excess cash flow to invest in our high-impact  commercialization
projects and exploration prospects around the world," stated Scott D. Sheffield,
Chairman and CEO.

The waiting period under the Hart-Scott-Rodino filing expired July 22, 2004. The
Form S-4  pertaining  to the  merger  has been  filed  with the  Securities  and
Exchange  Commission,  and Pioneer and Evergreen are awaiting final clearance to
prepare and mail materials to solicit stockholder  approval.  The companies will
issue  news  releases  as  soon  as  the  dates  for  the  special  meetings  of
stockholders have been established.

Operations Update

The deepwater  Gulf of Mexico Devils Tower field began  producing in May, and is
currently producing from two wells. Six additional wells are awaiting completion
during  the next  several  months,  including  two  during  the  third  quarter.
Goldfinger and Triton (25% working interest or "WI"),  satellite  discoveries to
the Devils Tower field, are expected to be jointly tied back to the Devils Tower
spar with first production expected in 2005. In mid-June, Pioneer achieved first
production  from  its  Tomahawk  and  Raptor  fields  (100%  WI) in the  western
deepwater Gulf of Mexico,  both subsea tiebacks to the Falcon field  facilities.
Completion  of the  fields  in just ten  months  established  a new  record  for
deepwater  development.  In June,  Pioneer  participated  in a discovery  on the
Thunder Hawk (12.5% WI) prospect at Mississippi  Canyon Block 734. The sidetrack
well  encountered  in  excess  of 300  feet of net  oil pay in two  high-quality
reservoir  zones,  and the  partners  are  currently  evaluating  appraisal  and
development  options,  with an  additional  well to further  delineate the field
likely to  commence  in late 2004.  In the second  quarter,  Pioneer was awarded
leases on 19 Gulf of Mexico blocks  covering  approximately  102,000  acres,  of
which 14 are located in the deepwater.

Pioneer  is  participating  in a  joint  exploration  program  in  the  National
Petroleum  Reserve-Alaska (NPR-A).  Pioneer was the apparent high co-bidder (20%
WI) on 63 tracts  covering  approximately  717,000 acres in the NPR-A  Northwest
Planning Area and also acquired a 20% WI in 167,000 acres in the adjacent  NPR-A
Northeast Planning Area and in federal offshore blocks.

Onshore development  continues with 11 onshore rigs running in the U.S. and five
rigs  running in  Argentina.  During  the first six months of the year,  Pioneer
successfully completed 117 wells in the U.S., 31 wells in Argentina and 26 wells
in Canada.

In  Argentina,  Pioneer  completed  the expansion of its Loma Negra gas plant in
Neuquen  and a 20-mile  pipeline  to  deliver  gas from the new  reserves  being
developed in the  Portezuelos and Anticlinal  Campamento  fields located west of
the  plant.  Gas is being  produced  in  Argentina  at  record  levels,  and the
increased plant capacity will maximize the recovery of gas liquids.

In Tunisia, a new discovery,  Dalia-1 (28% WI),  encountered several oil and gas
bearing  zones.  The well was  placed  on  production  July 17 and is  currently
producing  at an initial  rate of  approximately  1,600 BPD from one zone.  Upon
completion of the initial production phase, the well is expected to produce from
multiple  zones at  significantly  higher rates.  In the adjacent Hawa field,  a
development well, Hawa-2 (28% WI), commenced drilling July 21.







In West Africa, Pioneer acquired a 40% WI in the Production Sharing Contract for
Block  H  offshore  Equatorial  Guinea.  The  Company  has  identified  multiple
prospects  on the 400,000  acres  covered by the blocks.  The first  exploration
well,  Bravo-1,  was  unsuccessful,  and a second well is planned  for 2005.  In
Gabon,  Pioneer  received  governmental  approval of its Exclusive  Exploitation
Agreement and is working toward finalizing the plans for field development.

Financial Outlook

The following  statements  are estimates  based on current  expectations.  These
forward-looking  statements  are subject to a number of risks and  uncertainties
which may cause the  Company's  actual  results  to differ  materially  from the
following  statements.  The last paragraph of this release  addresses certain of
the risks and uncertainties to which the Company is subject.

Third quarter 2004  production is expected to average 185,000 to 200,000 BOE per
day, reflecting the incremental  production expected from Devils Tower, Tomahawk
and Raptor,  the variability of oil cargo shipments in Tunisia and South Africa,
and the seasonal increase in gas demand during Argentina's winter season.  Third
quarter lease operating expenses (including production and ad valorem taxes) are
expected to average  $5.40 to $5.90 per BOE based on current  NYMEX strip prices
for oil and gas. Depreciation, depletion and amortization expense is expected to
average  $8.75  to  $9.25  per  BOE as a  greater  proportion  of the  Company's
production is being produced from higher-cost basis deepwater Gulf of Mexico and
South Africa properties.  Total exploration and abandonment  expense is expected
to be $25 million to $45 million. General and administrative expense is expected
to be $17 million to $19 million. Interest expense is expected to be $21 million
to $24 million and  accretion  of discount on asset  retirement  obligations  is
expected to be approximately $2 million. The Company's effective income tax rate
is expected to range from 36% to 39% based on current  capital  spending  plans,
including  cash income  taxes of $4 million to $8 million  that are  principally
related to Argentine and Tunisian income taxes and nominal  alternative  minimum
tax in the U.S.  Other than in Argentina and Tunisia,  the Company  continues to
benefit from the  carryforward  of net operating  losses and other  positive tax
attributes.

The third quarter forecast excludes any potential effects of the proposed merger
with  Evergreen.  Pioneer  expects to update its  forecasts for the quarter upon
completion of the merger. The Company's financial results and oil and gas hedges
are outlined on the attached schedules.

Earnings Conference Call

This morning at 10:00 a.m.  Eastern,  Pioneer  will  discuss its second  quarter
financial and operating results with an accompanying presentation. The call will
be webcast on Pioneer's  website,  www.pioneernrc.com.  At the  website,  select
"INVESTOR"  at the top of the  page.  For those  who  cannot  listen to the live
broadcast, a replay will be available shortly after the call.  Alternately,  you
may dial (800) 474-8920  (confirmation  code:  151546) to listen to the call via
the  telephone  and view the  accompanying  visual  presentation  at the website
above.  A  telephone  replay  will  be  available  by  dialing  (888)  203-1112:
confirmation code: 151546.

Pioneer is a large  independent oil and gas  exploration and production  company
with  operations in the United States,  Argentina,  Canada,  Equatorial  Guinea,
Gabon, South Africa and Tunisia.  Pioneer's headquarters are in Dallas. For more
information, visit Pioneer's website at www.pioneernrc.com.

The  proposed  merger will be submitted  to each of  Pioneer's  and  Evergreen's
stockholders  for  their  consideration,  and  Pioneer  will file with the SEC a
registration  statement  containing the joint proxy  statement-prospectus  to be
used by Pioneer to solicit  approval  of its  stockholders  to issue  additional
stock in the merger and to be used by  Evergreen  to solicit the approval of its
stockholders  for the proposed  merger.  Pioneer will also file other  documents
concerning the proposed merger. You are urged to read the registration statement
and the joint proxy statement-prospectus regarding the proposed merger when they
become available and any other relevant documents filed with the SEC, as well as
any  amendments or  supplements  to those  documents,  because they will contain
important information. You will be able to obtain a free copy of the joint proxy
statement-prospectus  including  the  registration  statement,  as well as other
filings  containing  information  about  Pioneer  at  the  SEC's  Internet  Site
(http://www.sec.gov). Copies of the joint proxy statement-prospectus can also be
obtained  without charge,  by directing a request to: Pioneer Natural  Resources
Company, Susan Spratlen, 5205 N. O'Connor Blvd., Suite 900, Irving, Texas 75039,
or via telephone at 972-969-3583.

Pioneer  and  its  directors  and  executive   officers  may  be  deemed  to  be
participants in the  solicitation of proxies from the stockholders of Pioneer in
connection with the proposed  merger.  Evergreen and its directors and executive
officers may be deemed to be  participants  in the  solicitation of proxies from
the stockholders of Evergreen in connection with the proposed merger. Additional
information  regarding  the interests of those  participants  may be obtained by
reading the joint proxy statement-prospectus  regarding the proposed merger when
it becomes available.






This filing  contains  forward-looking  statements that are made pursuant to the
Safe Harbor Provisions of the Private Securities  Litigation Reform Act of 1995,
particularly  those statements  regarding the effects of the proposed merger and
those preceded by, followed by or that otherwise  include the words  "believes,"
"expects,"   "anticipates,"  "intends,"  "estimates,"  or  similar  expressions.
Forward-looking  statements  relating to  expectations  about future  results or
events are based upon  information  available  to Pioneer  and  Evergreen  as of
today's date,  and neither  Pioneer nor  Evergreen  assumes any  obligations  to
update  any  of  these  statements.   The  forward-looking  statements  are  not
guarantees  of the future  performance  of Pioneer,  Evergreen  or the  combined
company,   and  actual  results  may  vary   materially  from  the  results  and
expectations discussed. For instance, although Pioneer and Evergreen have signed
an agreement for a subsidiary of Pioneer to merger with  Evergreen,  there is no
assurance that they will complete the proposed merger. The merger agreement will
terminate  if the  companies  do not  receive  necessary  approval  of  each  of
Pioneer's  and  Evergreen's  stockholders  or  government  approvals  or fail to
satisfy conditions to closing. Additional risks and uncertainties related to the
proposed  merger  include,  but are not limited to,  conditions in the financial
markets relevant to the proposed merger, the successful integration of Evergreen
into Pioneer's  business,  and each  company's  ability to compete in the highly
competitive  oil and gas  exploration  and  production  industry.  The revenues,
earnings  and business  prospects of Pioneer and the combined  company and their
ability to achieve  planned  business  objectives will be subject to a number of
risks and  uncertainties.  These risks and  uncertainties  include,  among other
things,   volatility  of  oil  and  gas  prices,   product  supply  and  demand,
competition,   government  regulation  or  action,  foreign  currency  valuation
changes,  foreign government tax and regulation changes,  litigation,  the costs
and results of drilling and operations,  Pioneer's  ability to replace reserves,
implement its business plans, or complete its development projects as scheduled,
access  to and cost of  capital,  uncertainties  about  estimates  of  reserves,
quality of  technical  data,  environmental  and weather  risks,  acts of war or
terrorism.  These and other risks are identified  from time to time in Pioneer's
SEC reports and public announcements.







                        PIONEER NATURAL RESOURCES COMPANY
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                 (in thousands)



                                                             June 30,      December 31,
                                                               2004            2003
                                                           -----------     -----------
                                                           (Unaudited)
ASSETS
                                                                     
Current assets:
  Cash and cash equivalents                                $    15,212     $    19,299
  Accounts receivable, net                                     166,539         111,480
  Inventories                                                   21,784          17,509
  Prepaid expenses                                               6,236          11,083
  Deferred income taxes                                         29,241          40,514
  Other current assets, net                                      8,648           5,230
                                                            ----------      ----------
       Total current assets                                    247,660         205,115
                                                            ----------      ----------
Property, plant and equipment, at cost:
  Oil and gas properties, using the successful efforts
     method of accounting                                    5,385,019       5,163,383
  Accumulated depletion, depreciation and amortization      (1,946,172)     (1,676,136)
                                                            ----------      ----------
       Total property, plant and equipment                   3,438,847       3,487,247
                                                            ----------      ----------
Deferred income taxes                                          182,142         192,344
Other assets, net                                               75,812          66,866
                                                            ----------      ----------
                                                           $ 3,944,461     $ 3,951,572
                                                            ==========      ==========

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable                                         $   170,269     $   186,418
  Interest payable                                              37,321          37,034
  Income taxes payable                                          10,383           5,928
  Other current liabilities                                    241,199         200,372
                                                            ----------      ----------
       Total current liabilities                               459,172         429,752
                                                            ----------      ----------
Long-term debt                                               1,391,363       1,555,461
Deferred income taxes                                           11,329          12,121
Other liabilities                                              297,684         194,466
Stockholders' equity                                         1,784,913       1,759,772
                                                            ----------      ----------
                                                           $ 3,944,461     $ 3,951,572
                                                            ==========      ==========








                        PIONEER NATURAL RESOURCES COMPANY
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (in thousands, except for per share data)
                                   (Unaudited)


                                                     Three months ended       Six months ended
                                                          June 30,                 June 30,
                                                   ---------------------   ---------------------
                                                      2004       2003         2004        2003
                                                   ---------   ---------   ---------   ---------
                                                                           
Revenues and other income:
   Oil and gas                                     $ 446,993   $ 344,240   $ 893,519   $ 629,239
   Interest and other                                  1,610       1,260       3,345       3,973
   Gain (loss) on disposition of assets, net            (232)        104        (245)      1,530
                                                    --------    --------    --------    --------
                                                     448,371     345,604     896,619     634,742
                                                    --------    --------    --------    --------
Costs and expenses:
   Oil and gas production                             95,565      73,843     184,776     141,710
   Depletion, depreciation and amortization          142,750     100,559     279,249     170,608
   Exploration and abandonments                       39,683      47,047     120,189      82,914
   General and administrative                         17,194      13,644      35,523      29,125
   Accretion of discount on asset retirement
      obligations                                      2,016       1,235       3,982       2,329
   Interest                                           21,402      23,823      42,978      46,314
   Other                                               8,300       5,638       8,496      10,816
                                                    --------    --------    --------    --------
                                                     326,910     265,789     675,193     483,816
                                                    --------    --------    --------    --------
Income before income taxes and cumulative
   effect of change in accounting principle          121,461      79,815     221,426     150,926
Income tax provision                                 (51,759)     (2,630)    (91,536)     (4,934)
                                                    --------    --------    --------    --------
Income before cumulative effect of change
   in accounting principle                            69,702      77,185     129,890     145,992
Cumulative effect of change in accounting
   principle, net of tax                                 -           -           -        15,413
                                                    --------    --------    --------    --------
Net income                                         $  69,702   $  77,185   $ 129,890   $ 161,405
                                                    ========    ========    ========    ========
Net income per share:
   Basic:
     Income before cumulative effect of change
        in accounting principle                    $     .59   $     .66   $    1.09   $    1.25
     Cumulative effect of change in accounting
        principle, net of tax                             -          -           -           .13
                                                    --------    --------    --------    --------
        Net income                                 $     .59   $     .66   $    1.09   $    1.38
                                                    ========    ========    ========    ========
   Diluted:
     Income before cumulative effect of change
         in accounting principle                   $     .58   $     .65   $    1.08   $    1.23
     Cumulative effect of change in accounting
        principle, net of tax                            -           -           -           .13
                                                    --------    --------    --------    --------
        Net income                                 $     .58   $     .65   $    1.08   $    1.36
                                                    ========    ========    ========    ========
Weighted average shares outstanding:
   Basic                                             118,855     117,005     118,787     116,875
                                                    ========    ========    ========    ========
   Diluted                                           120,402     118,969     120,333     118,823
                                                    ========    ========    ========    ========







                        PIONEER NATURAL RESOURCES COMPANY
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (Unaudited)



                                                       Three months ended         Six months ended
                                                            June 30,                  June 30,
                                                     -----------------------   -----------------------
                                                        2004         2003         2004         2003
                                                     ----------   ----------   ----------   ----------
                                                                                
Cash flows from operating activities:
   Net income                                        $   69,702   $   77,185   $  129,890   $  161,405
   Depletion, depreciation and amortization             142,750      100,559      279,249      170,608
   Exploration expenses, including dry holes             33,458       37,264      112,278       67,527
   Deferred income taxes                                 47,144         (501)      79,864         (247)
   (Gain) loss on disposition of assets, net                232         (104)         245       (1,530)
   Accretion of discount on asset retirement
      obligations                                         2,016        1,235        3,982        2,329
   Interest related amortization                         (4,993)      (4,614)     (11,363)      (9,179)
   Commodity hedge related amortization                 (11,242)     (18,205)     (22,533)     (35,987)
   Cumulative effect of change in accounting
     principle, net of tax                                  -            -            -        (15,413)
   Amortization of stock-based compensation               2,887        1,343        4,866        2,712
   Other noncash items                                    6,463          906        5,704        4,270
   Changes in operating assets and liabilities:
      Accounts receivable, net                          (24,803)      11,322      (58,540)     (14,645)
      Inventories                                        (4,161)      (3,857)      (4,180)      (4,217)
      Prepaid expenses                                    3,930       (1,362)       4,847       (9,584)
      Other current assets, net                             -           (884)         757         (486)
      Accounts payable                                    1,248       (2,711)      (4,754)       5,670
      Interest payable                                     (607)        (791)          86         (269)
      Income taxes payable                                1,397          724        4,455        2,176
      Other current liabilities                            (717)      (7,645)      (6,519)        (929)
                                                      ---------    ---------    ---------    ---------
Net cash provided by operating activities               264,704      189,864      518,334      324,211
Net cash used in investing activities                  (192,233)    (128,259)    (364,534)    (367,740)
Net cash provided by (used in) financing activities     (66,108)     (57,289)    (157,534)      45,747
                                                      ---------    ---------    ---------    ---------
Net increase (decrease) in cash and cash equivalents      6,363        4,316       (3,734)       2,218
Effect of exchange rate changes on cash
   and cash equivalents                                    (173)         982         (353)       1,448
Cash and cash equivalents, beginning
   of period                                              9,022        6,858       19,299        8,490
                                                      ---------    ---------    ---------    ---------
Cash and cash equivalents, end of period             $   15,212   $   12,156   $   15,212   $   12,156
                                                      =========    =========    =========    =========







                        PIONEER NATURAL RESOURCES COMPANY
                        SUMMARY PRODUCTION AND PRICE DATA
                                   (Unaudited)




                                                       Three months ended       Six months ended
                                                            June 30,               June 30,
                                                     ---------------------   ---------------------
                                                        2004        2003        2004       2003
                                                     ---------   ---------   ---------   ---------
                                                                             
Average Daily Production:
   Oil (Bbls) -                       U.S.              26,039      24,168      25,505      24,127
                                      Argentina          8,531       7,786       8,579       7,730
                                      Canada                95         125          97         130
                                      Africa            10,215         -        12,125          -
                                                     ---------   ---------   ---------   ---------
                                      Total             44,880      32,079      46,306      31,987

   Natural gas liquids (Bbls) -       U.S.              19,809      20,190      20,373      20,107
                                      Argentina          1,494       1,442       1,459       1,287
                                      Canada               916       1,024         981         952
                                                     ---------   ---------   ---------   ---------
                                      Total             22,219      22,656      22,813      22,346

   Gas (Mcf) -                        U.S.             558,131     477,607     554,306     408,983
                                      Argentina        122,326     103,265     110,072      85,050
                                      Canada            41,293      45,271      40,656      43,086
                                                     ---------   ---------   ---------   ---------
                                      Total            721,750     626,143     705,034     537,119

Total Production:
   Oil (MBbls)                                           4,084       2,919       8,428       5,790
   Natural gas liquids (MBbls)                           2,022       2,062       4,152       4,045
   Gas (MMcf)                                           65,679      56,979     128,316      97,219
   Equivalent barrels (MBOE)                            17,053      14,477      33,966      26,037

Average Reported Price (a):
   Oil (per Bbl) -                    U.S.           $   27.63   $   24.31   $   27.16   $   25.07
                                      Argentina      $   20.13   $   24.07   $   24.05   $   24.83
                                      Canada         $   39.48   $   25.09   $   37.18   $   28.57
                                      Africa         $   35.13   $     -     $   32.98   $     -
                                      Worldwide      $   27.94   $   24.25   $   28.13   $   25.03

   Natural gas liquids (per Bbl) -    U.S.           $   22.29   $   17.09   $   21.90   $   19.34
                                      Argentina      $   27.22   $   23.13   $   28.17   $   23.63
                                      Canada         $   29.33   $   26.90   $   27.82   $   27.18
                                      Worldwide      $   22.92   $   17.92   $   22.55   $   19.92

   Gas (per Mcf) -                    U.S.           $    5.16   $    4.84   $    5.14   $    4.79
                                      Argentina      $     .65   $     .57   $     .62   $     .56
                                      Canada         $    4.55   $    5.12   $    4.39   $    5.24
                                      Worldwide      $    4.36   $    4.15   $    4.39   $    4.15
<FN>
- ---------------
(a) Average prices include the results of hedging activities.
</FN>







                        PIONEER NATURAL RESOURCES COMPANY
                    SUPPLEMENTAL NON-GAAP FINANCIAL MEASURES
                                 (in thousands)
                                   (Unaudited)


     EBITDAX  and  discretionary  cash  flow  ("DCF")  (as  defined  below)  are
presented herein, and reconciled to the generally accepted accounting  principle
("GAAP")  measures of net income and net cash  provided by operating  activities
because  of their wide  acceptance  by the  investment  community  as  financial
indicators of a company's ability to internally fund exploration and development
activities  and to service or incur debt.  The Company  also views the  non-GAAP
measures of EBITDAX and DCF as useful  tools for  comparisons  of the  Company's
financial  indicators  with those of peer  companies  that  follow the full cost
method of accounting.  EBITDAX and DCF should not be considered as  alternatives
to net income or net cash provided by operating activities, as defined by GAAP.


                                                       Three months ended       Six months ended
                                                            June 30,                June 30,
                                                     ---------------------   ----------------------
                                                        2004        2003        2004        2003
                                                     ---------   ---------   ---------   ----------
                                                                              
   Net income                                        $  69,702   $  77,185   $ 129,890    $ 161,405
   Depletion, depreciation and amortization            142,750     100,559     279,249      170,608
   Exploration and abandonments                         39,683      47,047     120,189       82,914
   Accretion of discount on asset retirement
      obligations                                        2,016       1,235       3,982        2,329
   Interest expense                                     21,402      23,823      42,978       46,314
   Income tax provision                                 51,759       2,630      91,536        4,934
   (Gain) loss on disposition of assets, net               232        (104)        245       (1,530)
   Commodity hedge related amortization                (11,242)    (18,205)    (22,533)     (35,987)
   Cumulative effect of change in accounting
      principle, net of tax                                -           -           -        (15,413)
   Amortization of stock-based compensation              2,887       1,343       4,866        2,712
   Other noncash items                                   6,463         906       5,704        4,270
                                                      --------    --------    --------     --------
      EBITDAX (a)                                      325,652     236,419     656,106      422,556

   Less:  Cash interest expense                        (26,395)    (28,437)    (54,341)     (55,493)
          Current income taxes                          (4,615)     (3,131)    (11,672)      (5,181)
                                                      --------    --------    --------     --------
      Discretionary cash flow (b)                      294,642     204,851     590,093      361,882

   Less:  Cash exploration expense                      (6,225)     (9,783)     (7,911)     (15,387)
          Changes in operating assets and liabilities  (23,713)     (5,204)    (63,848)     (22,284)
                                                      --------    --------    --------     --------
   Net cash provided by operating activities         $ 264,704   $ 189,864   $ 518,334    $ 324,211
                                                      ========    ========    ========     ========
<FN>
- -------------
(a)  "EBITDAX"   represents   earnings  before   depletion,   depreciation   and
     amortization expense;  exploration and abandonments;  accretion of discount
     on asset retirement  obligations;  interest expense;  income taxes; gain or
     loss on the disposition of assets;  commodity  hedge related  amortization;
     cumulative  effect  of  change  in  accounting   principle,   net  of  tax;
     amortization of stock- based compensation; and other noncash items.
(b)  Discretionary cash flow equals cash flows from operating  activities before
     changes in operating  assets and  liabilities  and before cash  exploration
     expense.
</FN>






                        PIONEER NATURAL RESOURCES COMPANY
                         SUPPLEMENTAL HEDGE INFORMATION
                               As of July 30, 2004


                         Open Commodity Hedge Positions


                                             2004
                                --------------------------------
                                 Third      Fourth
                                Quarter     Quarter       Year        2005        2006        2007        2008
                                --------    --------    --------    --------    --------    --------    --------
                                                                                   
Average Daily Oil Production:
     Swap Contracts:
     Volume (Bbl)                 22,500      24,000      23,250      27,000       5,000      11,000      15,000
     NYMEX price (Bbl)          $  29.26    $  29.65    $  29.46    $  27.97    $  26.19    $  30.17    $  28.56

Average Daily Gas Production:
     Swap Contracts:
     Volume (Mcf)                310,000     310,000     310,000     174,904      70,000      20,000         -
     NYMEX price (MMBtu) (a)    $   4.40    $   4.40    $   4.40    $   5.15    $   4.25    $   3.75    $    -
<FN>
- ---------------
(a) Approximate, based on historical differentials to index prices.
</FN>


                   Open Interest Rate Swap Hedge Positions (a)


                                                                Annual Interest (b)
                                               Notional     ---------------------------
                                                 Debt       Fixed Rates   LIBOR Margins
                                               Amounts        Received        Paid
                                             ------------   -----------   -------------
                                                               
7-1/2% senior notes due 2012                 $ 10,000,000      7.50%          3.72%
9-5/8% senior notes due 2010                 $ 60,000,000      9.63%          5.62%
<FN>
- ---------------
(a)  The open interest rate swaps are fair value hedges of the Company's  7-1/2%
     and 9-5/8%  senior notes and mature when the hedged  senior notes mature in
     2012 and 2010, respectively.
(b)  Under the terms of the interest rate swaps,  the Company receives the fixed
     rates  on the  notional  amounts  and pays the  variable  six-month  London
     Interbank Offered Rate ("LIBOR") plus the LIBOR margins shown above.
</FN>



         Net Deferred Gains (Losses) on Terminated Hedges (in thousands)


                                              2004
                                   ---------------------------
                                    Third    Fourth
                                   Quarter   Quarter     Year     2005     Thereafter     Total
                                   -------   -------   -------   -------   ----------   ---------
                                                                      
Net commodity hedge gains (a)      $11,001   $10,954   $21,955   $ 1,249    $    -      $  23,204
Net debt hedge gains (losses) (b)    3,050     2,148     5,198     4,215      (9,600)        (187)
                                    ------    ------    ------    ------     -------     --------

Total net deferred gains (losses)  $14,051   $13,102   $27,153   $ 5,464    $ (9,600)   $  23,017
                                    ======    ======    ======    ======     =======     ========
<FN>
- ---------------
(a)  Includes the  following net deferred  commodity  hedge gains and losses for
     which  cash  settlements  have been  deferred  until the  indicated  future
     periods:  (i) $322  thousand and $317  thousand of net  deferred  commodity
     hedge   losses  due  during  the  third  and  fourth   quarters   of  2004,
     respectively,  and (ii) $209 thousand of net deferred commodity hedge gains
     to be  received  during  2005.  Deferred  commodity  hedge  gains  will  be
     amortized as increases to oil and gas revenues and deferred commodity hedge
     losses will be amortized  as  decreases to oil and gas revenues  during the
     indicated future periods.
(b)  Deferred  debt hedge  gains will be  amortized  as  decreases  to  interest
     expense and  deferred  debt hedge  losses will be amortized as increases to
     interest expense during the indicated future periods.
</FN>