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

                                  SCHEDULE 14A


           PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                      EXCHANGE ACT OF 1934 (AMENDMENT NO. )

Filed by the Registrant   [ X ]
Filed by a Party other than the Registrant   [   ]

Check the appropriate box:

[   ]   Preliminary Proxy Statement
[   ]   Confidential, for Use of the Commission Only (as permitted by Rule
        14a-6(e)(2))
[ X ]   Definitive Proxy Statement
[   ]   Definitive Additional Materials
[   ]   Soliciting Material Pursuant to Rule 14a-12

                        Pioneer Natural Resources Company
                ------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

    ------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[ X ]   No fee required.
[   ]   Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

    (1) Title of each class of securities to which transaction applies:

        --------------------------------------------------------------
    (2) Aggregate number of securities to which transaction applies:

        --------------------------------------------------------------
    (3) Per  unit  price  or other  underlying  value  of  transaction  computed
        pursuant to  Exchange Act  Rule 0-11  (set forth the amount on which the
        filing fee is calculated and state how it was determined):

        --------------------------------------------------------------
    (4) Proposed maximum aggregate value of transaction:

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    (5) Total fee paid:

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[   ]   Fee paid previously with preliminary materials.
[   ]   Check box if  any part of  the fee is offset as provided by Exchange Act
        Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
        paid previously.  Identify the previous filing by registration statement
        number, or the Form or Schedule and the date of its filing.

    (1) Amount Previously Paid:

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    (2) Form, Schedule or Registration Statement No.:

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    (3) Filing Party:

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    (4) Date Filed:

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                                        1





                        PIONEER NATURAL RESOURCES COMPANY
                          5205 North O'Connor Boulevard
                                    Suite 900
                               Irving, Texas 75039


                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To the Stockholders of Pioneer Natural Resources Company:

     Notice is hereby given that the Annual Meeting of  Stockholders  of Pioneer
Natural Resources Company (the "Company") will be held in the Hudson Room at the
Dallas  Marriott Las Colinas Hotel,  223 West Las Colinas Blvd.,  Irving,  Texas
75039,  on  Wednesday,  May 11,  2005,  at 9:00 a.m.  Central  Time (the "Annual
Meeting"). The Annual Meeting is being held for the following purposes:

         1. To elect four directors, each for a term of three years.

         2. To ratify the selection of Ernst & Young LLP as  the auditors of the
Company for the current year.

         3. To transact  such other  business as  may properly  come before  the
Annual Meeting.

     These proposals are described in the accompanying proxy materials. You will
be able to vote at the Annual  Meeting only if you were a stockholder  of record
at the close of business on March 15, 2005.

                             YOUR VOTE IS IMPORTANT

     Please  date,  sign and return the  enclosed  Proxy  promptly  so that your
shares may be voted in  accordance  with your wishes and so we may have a quorum
at the Annual  Meeting.  Instead of returning the paper proxy,  you may vote via
the Internet at  www.continentalstock.com,  our transfer agent's  website.  Have
your proxy card in hand when you access this website.


                                 By Order of the Board of Directors,


                                   /s/ Mark S. Berg
                                 -----------------------------------
                                 Mark S. Berg
                                 Secretary

Irving, Texas
April 5, 2005


                                        2





                        PIONEER NATURAL RESOURCES COMPANY
                          5205 North O'Connor Boulevard
                                    Suite 900
                               Irving, Texas 75039


                                 PROXY STATEMENT

                       2005 ANNUAL MEETING OF STOCKHOLDERS

     The Board of  Directors of the Company  requests  your Proxy for the Annual
Meeting of Stockholders that will be held Wednesday,  May 11, 2005, at 9:00 a.m.
Central Time, in the Hudson Room at the Dallas  Marriott Las Colinas Hotel,  223
West Las  Colinas  Blvd.,  Irving,  Texas  75039.  By  granting  the Proxy,  you
authorize  the persons  named on the Proxy to represent you and vote your shares
at the Annual Meeting. Those persons will also be authorized to vote your shares
to adjourn the Annual  Meeting  from time to time and to vote your shares at any
adjournments or postponements of the Annual Meeting.

     You may grant your Proxy by  signing,  dating and  returning  the  enclosed
paper proxy card.  Instead of returning the paper proxy card, you may complete a
proxy card  electronically  through the Internet by accessing the website of the
Company's  transfer  agent at  www.continentalstock.com.  See "Internet  Voting"
below.

     If you attend the Annual  Meeting,  you may vote in person.  If you are not
present at the Annual Meeting, your shares may be voted only by a person to whom
you have given a proper proxy,  such as the  accompanying  Proxy or the Internet
Proxy. You may revoke the Proxy in writing at any time before it is exercised at
the Annual  Meeting by  delivering  to the  Secretary  of the  Company a written
notice of the  revocation,  by signing and  delivering  to the  Secretary of the
Company a Proxy with a later date,  or by  submitting  your vote  electronically
through the Internet with a later date.  Your  attendance at the Annual  Meeting
will not revoke the Proxy unless you give written  notice of  revocation  to the
Secretary  of the Company  before the Proxy is exercised or unless you vote your
shares in person at the Annual Meeting.

     This Proxy  Statement  and the  accompanying  Notice of Annual  Meeting and
Proxy are first being sent or given to  stockholders  of the Company on or about
April 5, 2005.

                                QUORUM AND VOTING

     Voting Stock.  The Company's common stock, par value $.01 per share, is the
only class of securities that entitles  holders to vote generally at meetings of
the Company's stockholders. Each share of common stock outstanding on the record
date is entitled to one vote.

     Record Date. The record date for stockholders  entitled to notice of and to
vote at the Annual  Meeting was the close of business on March 15, 2005.  At the
record date, 143,845,045 shares of common stock were outstanding and entitled to
be voted at the Annual Meeting.

     Quorum  and  Adjournments.  The  presence,  in person  or by Proxy,  of the
holders of a majority of the votes  eligible to be cast at the Annual Meeting is
necessary to constitute a quorum at the Annual Meeting.

     If a quorum  is not  present,  the  stockholders  entitled  to vote who are
present  in person or by Proxy at the Annual  Meeting  have the power to adjourn
the Annual Meeting from time to time,  without notice other than an announcement
at the  Annual  Meeting,  until a quorum is  present.  At any  adjourned  Annual
Meeting at which a quorum is present,  any business may be transacted that might
have been transacted at the Annual Meeting as originally notified.

     Vote  Required.  Directors  will be  elected  by a  plurality  of the votes
present and  entitled  to be voted at the Annual  Meeting.  Ratification  of the
selection of the  Company's  auditors will require the  affirmative  vote of the
holders of a majority  of the shares  present  and  entitled  to be voted at the
Annual  Meeting.   An  automated  system  that  the  Company's   transfer  agent
administers will tabulate  the votes. Brokers who hold shares in street name for

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customers are required to vote shares in accordance with  instructions  received
from the beneficial owners. Brokers are permitted to vote on discretionary items
if they have not received  instructions from the beneficial owners, but they are
not permitted to vote (a "broker non-vote") on non-  discretionary  items absent
instructions  from the beneficial  owner.  Abstentions and broker non-votes will
count in  determining  whether a quorum is present at the Annual  Meeting.  Both
abstentions  and broker  non-votes  will not have any  effect on the  outcome of
voting on director elections.  For purposes of voting on the ratification of the
selection  of  auditors,  abstentions  will be  included in the number of shares
voting  and will have the  effect of a vote  against  the  proposal,  and broker
non-votes will not be included in the number of shares voting and therefore will
have no effect on the outcome of the voting.

     Default  Voting.  A Proxy that is properly  completed  and returned will be
voted at the Annual Meeting in accordance with the instructions on the Proxy. If
you properly complete and return a Proxy, but do not indicate any contrary
voting instructions, your shares will be voted as follows:

       o     FOR the election of the four persons  named in this Proxy Statement
             as the Board of Directors'  nominees for  election to the  Board of
             Directors.

       o     FOR the  ratification of the selection  of Ernst & Young LLP as the
Company's auditors.

If any other business  properly comes before the  stockholders for a vote at the
meeting,  your shares will be voted in  accordance  with the  discretion  of the
holders of the Proxy.  The Board of  Directors  knows of no matters,  other than
those  previously  stated,  to be  presented  for  consideration  at the  Annual
Meeting.

                                    ITEM ONE

                              ELECTION OF DIRECTORS

     The Board of Directors has nominated the following individuals for election
as Class II  Directors  of the  Company  with their terms to expire in 2008 when
their successors are elected and qualified:

                                James R. Baroffio
                               Edison C. Buchanan
                               Scott D. Sheffield
                                  Jim A. Watson

     Messrs. Baroffio,  Buchanan,  Sheffield and Watson are currently serving as
Directors of the Company.  Their  biographical  information  is contained in the
"Directors and Executive  Officers" section below. Dr. Baroffio will be 75 years
of age  before  2008.  In  accordance  with the  Company's  bylaws,  he will not
complete the term for which he is nominated.

     The Board of  Directors  has no reason to believe  that any of its nominees
will be unable or unwilling to serve if elected.  If a nominee becomes unable or
unwilling to accept  nomination or election,  either the number of the Company's
directors  will be reduced or the persons  acting  under the Proxy will vote for
the election of a substitute nominee that the Board of Directors recommends.

     The Board of Directors  recommends that  stockholders vote FOR the election
of each of the nominees.

                                    ITEM TWO

                              SELECTION OF AUDITORS

     The Audit  Committee of the Board of Directors  has selected  Ernst & Young
LLP as the auditors of the Company for 2005.  Ernst & Young LLP have audited the
Company's  financial  statements  since  1998.  The 2004 audit of the  Company's
consolidated  financial  statements and  effectiveness  of internal control over
financial reporting was completed on February 17, 2005.


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     The Board of Directors is submitting the selection of Ernst & Young LLP for
ratification at the Annual  Meeting.  The submission of this matter for approval
by  stockholders  is not legally  required,  but the Board of Directors  and the
Audit Committee believe the submission  provides an opportunity for stockholders
to  communicate  through  their vote with the Board of  Directors  and the Audit
Committee about an important aspect of corporate governance. If the stockholders
do not  ratify the  selection  of Ernst & Young LLP,  the Audit  Committee  will
reconsider the selection of that firm as the Company's auditors.

     The Audit  Committee has the sole authority and  responsibility  to retain,
evaluate and replace the Company's auditors.  The stockholders'  ratification of
the  appointment  of Ernst & Young LLP does not limit the authority of the Audit
Committee to change auditors at any time.

     Audit Fees. The aggregate fees billed by Ernst & Young LLP for professional
services rendered for the audits of the Company's annual financial statements on
Forms 10-K, audit of the Company's  internal  control over financial  reporting,
reviews  of the  Company's  quarterly  financial  statements  on Forms  10-Q and
reviews  of the  Company's  other  filings  with  the  Securities  and  Exchange
Commission (the "SEC") including  comfort  letters,  consents and other research
work  necessary to comply with  generally  accepted  auditing  standards for the
years ended December 31, 2004 and 2003 were $960,629 and $505,642, respectively.

     Audit-Related  Fees.  The  aggregate  fees  earned by Ernst & Young LLP for
audit-related  services  provided to the Company  totaled $10,000 during each of
the  years  ended  December  31,  2004 and  2003.  Audit-related  services  were
comprised of audits of the Company's benefit plans.

     Tax Services  Fees.  The aggregate fees earned by Ernst & Young LLP for tax
services  provided to the Company  totaled  $82,140 and $68,903 during the years
ended  December 31, 2004 and 2003,  respectively.  Tax services  were  primarily
comprised of tax return  preparation  services for expatriates and the Company's
international subsidiaries.

     Other  Fees.  The  aggregate  fees  earned  by Ernst & Young  LLP for other
professional  services  provided to the Company  totaled $13,335 during the year
ended  December  31,  2003 and were  primarily  comprised  of  employee  benefit
advisory  services.  No other  services  were provided to the Company by Ernst &
Young LLP during the year ended December 31, 2004.

     The Charter of the  Company's  Audit  Committee  of the Board of  Directors
requires that the Audit  Committee  review and pre-approve the plan and scope of
Ernst & Young  LLP  audit,  audit-related,  tax and  other  services.  The Audit
Committee  pre-approved  100 percent of the  services  provided by Ernst & Young
LLP.

     The  Company  expects  that  representatives  of Ernst & Young  LLP will be
present at the Annual Meeting to respond to appropriate  questions and to make a
statement if they desire to do so.

     The audit  report of Ernst & Young LLP on the  Company's  annual  financial
statements  for 2004,  2003 and 2002 did not  contain  an  adverse  opinion or a
disclaimer  of opinion and was not  qualified or modified as to  uncertainty  or
audit scope.  The audit report of Ernst & Young LLP on  management's  assessment
that the Company maintained  effective internal control over financial reporting
as of December 31, 2004 did not contain an adverse  opinion or a  disclaimer  of
opinion and was not qualified or modified as to uncertainty or audit scope.

     In connection with the audits of the Company's annual financial  statements
for 2004, 2003 and 2002, there were no  disagreements  with Ernst & Young LLP on
any  matters  of  accounting   principles  or  practices,   financial  statement
disclosure,  or  auditing  scope or  procedures  which,  if not  resolved to the
satisfaction of such independent accountants, would have caused such independent
accountants to make reference to the matter in their audit report.

     The Board of Directors  recommends that  stockholders vote FOR ratification
of the selection of Ernst & Young LLP.


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                        DIRECTORS AND EXECUTIVE OFFICERS

     After the Annual Meeting,  assuming the stockholders  elect the nominees of
the Board of Directors as set forth in "Item One - Election of Directors" above,
the Board of Directors and executive officers of the Company will be:

Name                      Age                   Position
----                      ---                   --------

Scott D. Sheffield.....   52   Chairman of the Board and Chief Executive Officer
Timothy L. Dove........   48   President and Chief Operating Officer
A. R. Alameddine.......   58   Executive Vice President - Worldwide Business
                               Development
Mark S. Berg ..........   46   Executive Vice President, General Counsel and
                               Secretary
Chris J. Cheatwood.....   44   Executive Vice President - Worldwide Exploration
Richard P. Dealy.......   39   Executive Vice President and Chief Financial
                               Officer
Danny L. Kellum........   50   Executive Vice President - Domestic Operations
James R. Baroffio......   73   Director
Edison C. Buchanan.....   50   Director
R. Hartwell Gardner....   70   Director
James L. Houghton......   74   Director
Jerry P. Jones.........   73   Director
Linda K. Lawson........   59   Director
Andrew D. Lundquist....   44   Director
Charles E. Ramsey, Jr..   68   Director
Mark S. Sexton.........   49   Director
Robert A. Solberg......   59   Director
Jim A. Watson..........   66   Director

     The Company  has  classified  its Board of  Directors  into three  classes.
Directors  in each  class are  elected to serve for  three-year  terms and until
either reelected or their successors are elected and qualified. In addition, the
Company's bylaws terminate the term of a director immediately when that director
reaches 75 years of age, as will occur for Dr.  Baroffio on March 27, 2007 if he
is  reelected  at the  Annual  Meeting  and as will  occur for Mr.  Houghton  on
December 19, 2005 prior to the end of his current term in 2007.  Each year,  the
directors  of one class stand for  reelection  as their terms of office  expire.
Messrs.  Gardner,  Houghton and Sexton and Mrs. Lawson are designated as Class I
Directors and their terms of office expire in 2007. Messrs. Baroffio,  Buchanan,
Sheffield  and Watson are  designated  as Class II Directors  and their terms of
office  expire at the  Annual  Meeting.  Messrs.  Jones,  Lundquist,  Ramsey and
Solberg are  designated  as Class III Directors and their terms of office expire
in 2006.

     Executive officers serve at the discretion of the Board of Directors.

     Set forth below is  biographical  information  about each of the  Company's
executive officers and directors named above.

     Scott  D.  Sheffield.  Mr.  Sheffield,  a  distinguished  graduate  of  the
University of Texas with a Bachelor of Science degree in Petroleum  Engineering,
has held the position of Chief  Executive  Officer  since  August  1997.  He was
President  of the Company  from August  1997 to November  2004,  and assumed the
position  of Chairman of the Board in August  1999.  He was the  Chairman of the
Board and Chief Executive Officer of Parker & Parsley Petroleum Company ("Parker
& Parsley") from October 1990 until the formation of the Company in August 1997.
Mr.  Sheffield  joined  Parker  &  Parsley  Development   Company  ("PPDC"),   a
predecessor of Parker & Parsley,  as a petroleum engineer in 1979. Mr. Sheffield
served as Vice  President - Engineering  of PPDC from September 1981 until April
1985, when he was elected President and a Director. In March 1989, Mr. Sheffield
was elected  Chairman of the Board and Chief Executive  Officer of PPDC.  Before
joining PPDC, Mr. Sheffield was employed as a production and reservoir  engineer
for  Amoco  Production  Company.  Mr.  Sheffield  also  served  on the  Board of
Directors of Evergreen Resources,  Inc.  ("Evergreen") from 1996 until Evergreen
merged  with  the  Company,  and he was a  member  of  Evergreen's  Compensation
Committee.


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     Timothy L. Dove. Mr. Dove was elected President and Chief Operating Officer
in November  2004.  Prior to that, Mr. Dove held the positions of Executive Vice
President and Chief  Financial  Officer since  February 2000 and Executive  Vice
President - Business  Development  from August  1997 to January  2000.  Mr. Dove
joined Parker & Parsley in May 1994 as Vice  President -  International  and was
promoted to Senior Vice  President - Business  Development  in October  1996, in
which position he served until August 1997. Before joining Parker & Parsley, Mr.
Dove was employed with Diamond Shamrock Corp.,  and its successor,  Maxus Energy
Corp.,  in various  capacities  in  international  exploration  and  production,
marketing, refining, and planning and development. Mr. Dove earned a Bachelor of
Science  degree  in  Mechanical  Engineering  from  Massachusetts  Institute  of
Technology  in 1979 and  received  his  M.B.A.  in 1981 from the  University  of
Chicago.

     A. R. Alameddine. Mr. Alameddine, who joined the Company in July of 1997 as
Vice  President  of  Domestic  Business  Development,  has been  Executive  Vice
President - Worldwide Business Development since November 2003. Prior to joining
the Company, Mr. Alameddine spent 26 years with Mobil Exploration and Production
Company  ("Mobil").  At the time of his departure from Mobil, Mr. Alameddine was
the  Acquisition,  Trade and Sales  Manager,  a position he had held since 1990.
Prior  to1990,  Mr.  Alameddine  held  several   managerial   positions  in  the
acquisition and sales group as well as in the reservoir-engineering  department.
A native of Lebanon,  Mr.  Alameddine  joined  Mobil as an  Operations  Engineer
following his graduation from Louisiana State University in 1971 with a Bachelor
of Science degree in Petroleum Engineering.

     Mark S. Berg.  Mr. Berg joined the Company in April 2005 as Executive  Vice
President,  General  Counsel and  Secretary.  Mr. Berg served as Executive  Vice
President,  General  Counsel and Secretary of American  General  Corporation,  a
Fortune 200  diversified  financial  services  company from 1997  through  2002.
Subsequent  to the sale of  American  General to American  International  Group,
Inc.,  Mr.  Berg joined  Hanover  Compressor  Company as Senior Vice  President,
General  Counsel  and  Secretary.  He served in that  capacity  from May of 2002
through April of 2004. Mr. Berg began his career in 1983 with the  Houston-based
law firm of  Vinson & Elkins  L.L.P.  He was a  partner  with the firm from 1990
through  1997.  Mr.  Berg  graduated  Magna Cum Laude and Phi Beta  Kappa with a
Bachelor or Arts degree from Tulane  University in 1980. He earned his J.D. with
honors from the University of Texas Law School in 1983.

     Chris J. Cheatwood.  Mr.  Cheatwood was elected  Executive Vice President -
Worldwide  Exploration  in January  2002.  Mr.  Cheatwood  joined the Company in
August 1997 and was promoted to Vice  President - Domestic  Exploration  in July
1998 and Senior Vice President - Exploration  in December  2000.  Before joining
the  Company,  Mr.  Cheatwood  spent ten years with Exxon Corp.  where his focus
included  exploration  in the  Deepwater  Gulf of  Mexico.  Mr.  Cheatwood  is a
graduate  of the  University  of Oklahoma  with a Bachelor of Science  degree in
Geology and earned his Master of Science  degree in Geology from the  University
of Tulsa.

     Richard P. Dealy. Mr. Dealy was elected  Executive Vice President and Chief
Financial  Officer in November 2004.  Prior to that, Mr. Dealy held positions of
Vice  President  and  Chief  Accounting  Officer  since  February  1998 and Vice
President  and  Controller  from August 1997 to January  1998.  Mr. Dealy joined
Parker & Parsley in July 1992 and was promoted to Vice  President and Controller
in 1995, in which position he served until August 1997. He is a Certified Public
Accountant,  and prior to joining Parker & Parsley, he was employed by KPMG Peat
Marwick. Mr. Dealy graduated with honors from Eastern New Mexico University with
a Bachelor of Business Administration degree in Accounting and Finance.

     Danny L. Kellum.  Mr. Kellum,  who received a Bachelor of Science degree in
Petroleum  Engineering from Texas Tech University in 1979, was elected Executive
Vice  President - Domestic  Operations in May 2000.  From January 2000 until May
2000,  Mr. Kellum  served as Vice  President - Domestic  Operations.  Mr. Kellum
served as Vice  President - Permian  Division  from  August 1997 until  December
1999. From 1989 until 1994 he served as Spraberry  District  Manager and as Vice
President  of the  Spraberry  and Permian  Division  for Parker & Parsley  until
August 1997.  Mr. Kellum  joined  Parker & Parsley as an operations  engineer in
1981 after a brief career with Mobil Oil Corporation.

     James R.  Baroffio.  Dr.  Baroffio  received a Bachelor  of Arts  degree in
Geology  at the  College  of  Wooster,  Ohio,  an M.S.  in Geology at Ohio State
University,  and a Ph.D. in Geology and Civil  Engineering  at the University of
Illinois.  Before  becoming a Director  of the  Company in  December  1997,  Dr.
Baroffio  enjoyed a long career with Chevron Oil Corporation  where he served as
President,  Chevron  Research  and Technology  Center and  V.P.  Exploration and

                                        7





eventually  retired  as  President  of Chevron  Canada  Resources  in 1994.  Dr.
Baroffio was  Chairman of the U.S.  National  Committee  of the World  Petroleum
Congress  and is  currently  a Trustee  Associate  of the AAPG  Foundation.  His
community  leadership  positions  included  Chairman of the Pacific  Symphony of
California  and a Director  of the  Nature  Conservancy  of  Canada,  as well as
serving as President of the Alberta Nature Conservancy.

     Edison C. Buchanan.  Mr. Buchanan  received a Bachelor of Science degree in
Civil  Engineering  from Tulane  University in 1977 and an M.B.A. in Finance and
International  Business from Columbia  University Graduate School of Business in
1981. From 1981 to 1997, Mr. Buchanan was a Managing  Director of various groups
in the Investment Banking Division of Dean Witter Reynolds in their New York and
Dallas  offices.  In 1997, Mr.  Buchanan  joined Morgan Stanley Dean Witter as a
Managing  Director in the Real Estate  Investment  Banking  group.  In 2000, Mr.
Buchanan  became  Managing  Director  and  head  of  the  domestic  Real  Estate
Investment  Banking Group of Credit Suisse First Boston.  In 2001, Mr.  Buchanan
began working for The Trust for Public Land, a land  conservation  organization,
in Santa Fe, New Mexico.  Mr. Buchanan became a Director of the Company in 2002.
Since  2004,  Mr.  Buchanan  has also  served on the Board of  Directors  of MFA
Mortgage Investments, Inc.

     R. Hartwell Gardner. Mr. Gardner became a Director of the Company in August
1997.  He served as a  Director  of Parker & Parsley  from  November  1995 until
August 1997. Mr. Gardner  graduated from Colgate  University  with a Bachelor of
Arts degree in  Economics  and then earned an M.B.A.  from  Harvard  University.
Until October 1, 1995,  Mr.  Gardner was the Treasurer of Mobil Oil  Corporation
and Mobil Corporation from 1974 and 1976, respectively.  Mr. Gardner is a member
of Financial  Executives  International where he served as Chairman in 1986/1987
and is a Director and  Chairman of the  Investment  Committee of Oil  Investment
Corporation  Ltd.  and Oil  Casualty  Investment  Corporation  Ltd. in Hamilton,
Bermuda.

     James L.  Houghton.  Mr.  Houghton is a Certified  Public  Accountant and a
graduate of Kansas  University  with a Bachelor of Science degree in Accounting,
as well as a J.D.  degree.  Mr. Houghton has served as a Director of the Company
since August 1997, and as a Director of Parker & Parsley from October 1991 until
August  1997.  Until  October  1991,  Mr.  Houghton was the lead oil and gas tax
specialist for the accounting firm of Ernst & Young LLP, was a member of Ernst &
Young LLP's  National  Energy Group,  and had served as its  Southwest  Regional
Director of Tax. Mr. Houghton is a member of the American Institute of Certified
Public  Accountants,  a member  of the  Oklahoma  Society  of  Certified  Public
Accountants  and  a  former  Chairman  of  its  Federal  and  Oklahoma  Taxation
Committee, and past President of the Oklahoma Institute on Taxation. He has also
served as a Director for the Independent Petroleum Association of America and as
a member of its Tax Committee. Mr. Houghton presently serves as a Trustee of the
J. E. and L. E. Mabee Foundation in Tulsa, Oklahoma.

     Jerry P. Jones.  Mr.  Jones  earned a Bachelor of Science  degree from West
Texas State College in 1953 and a Bachelor of Laws degree from the University of
Texas  School of Law in 1959.  Mr. Jones has served as a Director of the Company
since  August  1997,  and as a Director of Parker & Parsley  from May 1991 until
August 1997.  Mr. Jones was an attorney  with the law firm of Thompson & Knight,
L.L.P. in Dallas, Texas, since September 1959 and was a shareholder in that firm
until January 1998, when he retired and became of counsel to the firm. Mr. Jones
specialized in civil litigation, especially in the area of energy disputes.

     Linda K.  Lawson.  Mrs.  Lawson  holds a  Bachelor  of  Science  degree  in
Accounting  from the University of Denver.  Mrs. Lawson was employed by business
units of The Williams Companies, as well as the parent organization from 1980 to
her retirement in 2001.  During her tenure she served in a variety of capacities
including  accounting and finance  positions of the parent,  and Controller of a
FERC regulated energy business unit, Vice President of Investor Relations,  Vice
President of Human Resources, and as COO of several  telecommunication  start-up
businesses.  She is a Certified Public  Accountant.  She serves on the Strategic
Planning and Funding  Committee for the School of  Accountancy at the University
of  Denver,  where she is also an adjunct  instructor,  and has served the Tulsa
community in a variety of nonprofit organizations. Mrs. Lawson became a Director
of the Company in 2002.

     Andrew D. Lundquist.  Mr.  Lundquist  received a Bachelor of Science degree
from the  University  of Alaska and a J.D.  from  Catholic  University  Columbus
School of Law. He joined the Company's  Board of Directors in September 2004, in
accordance with the terms of the  Company's merger with Evergreen,  after having

                                        8





served as an  independent  director  on  Evergreen's  Board of  Directors  since
November 2002.  During 2001, Mr.  Lundquist  served as the Director of The White
House National Energy Policy Development Group, which directed the cabinet-level
task  force  created by the  President  and  headed by the Vice  President  that
produced the  President's  National  Energy  Policy.  At that same time, he also
served as Senior  Advisor to the President and Vice  President on energy issues.
Mr.  Lundquist  was the Majority  Staff  Director of the U.S.  Senate Energy and
Natural  Resources  Committee from 1998 to 2001. Since March 2002, Mr. Lundquist
has served as the Managing  Partner of  Lundquist,  Nethercutt & Griles,  LLC, a
Washington,  D.C.-based  consulting  firm that  provides  analytic and strategic
advice to senior executives of corporations.

     Charles E. Ramsey,  Jr. Mr. Ramsey is a graduate of the Colorado  School of
Mines with a Petroleum  Engineering degree and a graduate of the Smaller Company
Management  program at the Harvard  Graduate School of Business  Administration.
Mr. Ramsey has served as a Director of the Company since August 1997. Mr. Ramsey
served as a Director of Parker & Parsley  from  October  1991 until August 1997.
Since  October  1991, he has operated an  independent  management  and financial
consulting  firm.  From June 1958 until  June  1986,  Mr.  Ramsey  held  various
engineering  and  management  positions in the oil and gas industry and, for six
years before October 1991, was a Senior Vice President in the Corporate  Finance
Department  of Dean  Witter  Reynolds  Inc.  in the Dallas,  Texas  office.  His
industry experience  includes 12 years of senior management  experience with May
Petroleum  Inc. in the  positions  of  President,  Chief  Executive  Officer and
Executive Vice President.  Mr. Ramsey is also a former director of MBank Dallas,
the Dallas Petroleum Club and Lear Petroleum Corporation.

     Mark S. Sexton. Mr. Sexton graduated from Stanford  University in 1978 with
a Bachelor of Science  degree in mechanical  engineering  and is registered as a
professional engineer in Colorado. He joined the Company's Board of Directors in
September  2004,  in  accordance  with the terms of the  Company's  merger  with
Evergreen.  Mr.  Sexton  was  employed  in  various  technical,   financial  and
management  positions  with Amoco  Production  Company,  Norwest Bank and energy
companies  specifically  targeting coal bed methane  development until he joined
Evergreen in 1989 where he initially  managed the daily operating  activities of
Evergreen. Until Evergreen merged with the Company in September 2004, Mr. Sexton
served as a director of Evergreen from March 1995, President and Chief Executive
Officer  from  June  1995 and  Chairman  of the Board of  Directors  from  1999.
Subsequent  to the  Evergreen  merger,  he became  managing  director  and Chief
Executive Officer of Evergreen Energy Company.  Mr. Sexton was a director of KFx
Inc.  from  1999 to  2004  and is a past  president  of the  Colorado  Oil & Gas
Association, a board member of the Independent Petroleum Association of America,
an  executive  committee  member of the  Independent  Petroleum  Association  of
Mountain States and a member of the Society of Petroleum Engineers.

     Robert A.  Solberg.  Mr.  Solberg  earned a  Bachelor  of  Science in Civil
Engineering  from the  University  of North  Dakota in 1969,  and is a  licensed
Petroleum Engineer. Mr. Solberg spent over three decades working for Texaco Inc.
throughout the world. He served his last ten years as a Corporate Vice President
with several  management  roles  including  President of  International  E&P and
President of Upstream Commercial  Development.  He elected to retire in 2002 and
joined the Company's  Board of Directors the  following  month.  He continues to
live in  Houston,  Texas  with a focus on  investment  management  and  business
consultation.  Mr. Solberg recently became an outside director and non-executive
Chairman of JDR Cable Systems,  Ltd., a privately owned British company. He also
enjoys a history of civic  leadership and currently  serves on the University of
North Dakota Alumni  Association  Board with a director role on their investment
committee.

     Jim A.  Watson.  Mr.  Watson  became a director of the Company in September
2004.  He earned a Bachelor of Arts degree from the  University of Texas in 1962
and graduated, with honors, from the University of Texas Law School in 1964. Mr.
Watson has served as Senior  Counsel  for the law firm of  Carrington,  Coleman,
Sloman, & Blumenthal,  L.L.P. in Dallas,  Texas since June 2003. Before then, he
was a partner at the law firm of Vinson & Elkins L.L.P. in Dallas,  Texas.  From
1987 to 1995,  he held the position of Adjunct  Professor at the  University  of
Texas Law School and from 2000 to 2004,  Mr. Watson was Chairman of the Advisory
Board of the  Clement  Center for  Southwestern  Studies at  Southern  Methodist
University.  Since 1989,  Mr. Watson has been included in the corporate  mergers
and acquisitions section of The Best Lawyers in America.



                                        9





                      MEETINGS AND COMMITTEES OF DIRECTORS

     The Board of  Directors  of the  Company  held 17 regular  meetings,  three
additional  telephonic  updates and four meetings of the independent  members of
the Board of Directors  during 2004. No director  attended fewer than 75 percent
of the total  number of  meetings of the Board of  Directors.  In  addition,  no
director  attended  fewer than 75 percent of the total number of meetings of all
committees of the Board of Directors on which that director served.

     The Board of Directors has three standing committees:  the Audit Committee,
the  Compensation  and Management  Development  Committee and the Nominating and
Corporate Governance Committee.

     Information  regarding the functions  performed by the Audit  Committee and
its membership is set forth in the "Audit  Committee  Report",  included herein,
and the "Audit  Committee  Charter" that is posted on the  Company's  website at
www.pioneernrc.com.  The members of the Audit  Committee  are  Messrs.  Houghton
(Chairman),  Gardner,  Jones,  Solberg  and  Watson and Mrs.  Lawson.  The Audit
Committee held eight meetings during 2004.

     The Compensation and Management  Development Committee periodically reviews
the  compensation,  employee  benefit  plans  and  fringe  benefits  paid to, or
provided  for,  executive  officers  of the  Company,  and  approves  the annual
salaries,  bonuses,  stock  option  awards and  restricted  stock  awards of the
Company's  executive  officers.  The  Compensation  and  Management  Development
Committee also administers the Company's  Long-Term  Incentive Plan (the "Plan")
and oversees the Company's succession planning. Additional information regarding
the functions performed by the Compensation and Management Development Committee
and its membership is set forth in the "Compensation and Management  Development
Committee  Report  on  Executive   Compensation"   included   herein,   and  the
"Compensation and Management  Development  Committee  Charter" that is posted on
the Company's website at www.pioneernrc.com. The members of the Compensation and
Management  Development  Committee are Messrs.  Buchanan  (Chairman),  Baroffio,
Lundquist and Ramsey. The Compensation and Management Development Committee held
five meetings during 2004.

     The  Nominating  and Corporate  Governance  Committee  assists the Board of
Directors  in  evaluating  potential  new  members  of the  Board of  Directors,
recommending  committee  members  and  structure,  and  advising  the  Board  of
Directors about corporate governance practices. Additional information regarding
the functions performed by the Nominating and Corporate  Governance Committee is
set forth in "Corporate  Governance"  included  herein,  and the "Nominating and
Corporate  Governance Committee Charter" that is posted on the Company's website
at  www.pioneernrc.com.  The members of the Nominating and Corporate  Governance
Committee include all non-employee  directors;  however, any director whose term
is expiring and who would be eligible  for  election at the Annual  Meeting does
not participate in the meeting(s) called for such nomination. The Nominating and
Corporate  Governance Committee was formed in 2003 and held four meetings during
2004.

                                  COMPENSATION

Compensation of Directors

     For the 2004-2005 director year, which runs from the annual meeting of 2004
to the annual meeting of 2005,  non-employee  directors are being compensated as
follows:

  o  Each non-employee director  receives an annual base retainer fee of $40,000
     and an annual fee of $10,000 for service on one or more committees.
  o  Audit Committee members received an additional $7,500 annual fee.
  o  The geosciences specialist on the Board of Directors receives an additional
     $7,500 annual fee.
  o  The lead director receives an additional fee of $15,000.
  o  The chairman of the  Audit Committee  receives an additional  $7,500 annual
     fee and other committee chairmen receive an additional $2,500 annual fee.


                                       10





Additionally,  each  non-employee  director is provided  information  technology
support by the  Company  and is also  reimbursed  for travel  expenses to attend
meetings of the Board of Directors or its committees,  travel and  entertainment
expenses for each  director's  spouse who is invited to  accompany  directors to
Board  meetings,  director  education,   seminars  and  trade  publications.  No
additional  fees are paid for  attendance  at Board of  Directors  or  committee
meetings.  The Company's  Chief  Executive  Officer does not receive  additional
compensation for serving on the Board of Directors.

     Under the Plan,  non-employee  directors are eligible to receive their fees
in the form of stock  options,  stock  appreciation  rights,  restricted  stock,
restricted  stock units or performance  units.  The Company can use these awards
instead of cash to pay its  non-employee  directors  all or part of their annual
fees. The Board of Directors  determines  the form (or  combination of forms) of
consideration  each year,  based on the economic and other  circumstances at the
time and based on its view of which awards will best align the  interests of the
stockholders  and the directors.  For the 2005-2006  director year, the Board of
Directors has determined that non-employee  directors can elect to receive their
annual fees 100 percent in cash or restricted stock units or 50 percent cash and
50 percent restricted stock units.

     For the 2004-2005  director year, the  non-employee  directors were given a
choice to be  compensated  for their  annual  directors'  fees in either (i) 100
percent cash, (ii) 100 percent  restricted stock or (iii) a 50/50 combination of
any thereof.

     The following table summarizes annual director fees earned by the Company's
non-employee  directors  during  the year ended  December  31,  2004  (these fee
elements  overlap  portions of the  2003-2004  director  year and the  2004-2005
director year):


                                 Annual Director Fees For the Year Ended December 31, 2004
                        --------------------------------------------------------------------------
                         Annual     Committee    Committee   Lead     Geosciences     Other
Name                    Retainer  Participation  Chairman   Director   Specialist  Perquisites (a)     Total
----                    --------  -------------  ---------  --------  -----------  ---------------  ------------
                                                                               
James R. Baroffio...... $ 40,000    $ 10,000      $   -     $    -       $ 7,500     $   4,233      $ 61,733
Edison C. Buchanan..... $ 40,000    $ 10,000      $ 2,500   $    -       $   -       $   1,118      $ 53,618 (b)
R. Hartwell Gardner.... $ 40,000    $ 17,500      $   -     $    -       $   -       $     249      $ 57,749 (b)
James L. Houghton...... $ 40,000    $ 17,500      $ 7,500   $    -       $   -       $     943      $ 65,943
Jerry P. Jones......... $ 40,000    $ 17,500      $   -     $    -       $   -       $     249      $ 57,749
Linda K. Lawson........ $ 40,000    $ 17,500      $   -     $    -       $   -       $     668      $ 58,168
Charles E. Ramsey, Jr.. $ 40,000    $ 10,000      $   -     $ 11,250     $   -       $   1,683      $ 62,933
Robert A. Solberg...... $ 40,000    $ 17,500      $   -     $    -       $   -       $     249      $ 57,749 (c)
Andrew D. Lundquist.... $    -      $    -        $   -     $    -       $   -       $     249      $    249
Mark S. Sexton......... $    -      $    -        $   -     $    -       $   -       $     249      $    249
Jim A. Watson.......... $    -      $    -        $   -     $    -       $   -       $     249      $    249

-----------
(a)  Other perquisites include travel and entertainment costs of spouses,  costs
     of attending conferences and seminars and gifts.
(b)  Messrs.  Buchanan and Gardner  chose to receive 100 percent of their annual
     fees in restricted stock.
(c)  Mr. Solberg chose to receive  restricted  stock for the equivalent value of
     $28,750 of his fees for the year ended December 31, 2004.



     Directors who had completed  three years of service as a director as of May
2004,  in addition to their  annual base pay  retainer  fee,  received an annual
equity award of $60,000 in restricted  stock.  The restricted  stock grants vest
after one year.  Retirement  before the first  anniversary  of the annual equity
award  grant  results  in pro rata  vesting  based on the  number  of  quarterly
meetings  remaining in the director  year.  New  directors  joining the Board of
Directors after May 2004 receive a pro rata portion of the $60,000 annual equity
award in restricted stock based on the number of quarterly meetings remaining in
the director  year.  The number of shares  granted is determined by dividing the
value of the equity award by the closing  price of one share of Company stock on
the last day preceding the day the director joins the Board of Directors.

     Each  non-employee  director,  upon  commencement  of initial  service as a
director,  receives  $125,000 of restricted  stock.  Directors who served on the
Board of  Directors  of a company  which was acquired or merged into the Company
and joined the  Company's Board of  Directors as a result  of the acquisition or

                                       11





merger are not eligible for this award.  The price used to calculate  the number
of shares to be granted is based on the closing  stock price on the day prior to
the day the director is elected to serve on the Board of  Directors.  The shares
granted are subject to vesting and transfer restrictions that lapse with respect
to  one-third  of the shares  each year  following  the grant over a  three-year
period. Retirement before the third anniversary of the grant results in pro rata
vesting based on the number of quarterly  meetings  remaining in the  three-year
vesting period.

     The  vesting  of  ownership  and the  lapse  of  transfer  restrictions  on
restricted  stock awards to non- employee  directors is accelerated in the event
of the  death or  disability  of the  director  or a change  in  control  of the
Company.

     The following table summarizes the equivalent  values on the dates of grant
of restricted stock awarded to the Company's  non-employee  directors during the
year ended December 31, 2004:



                         Director Restricted Stock Awards During the Year ended December 31, 2004
                         ------------------------------------------------------------------------
                                   Equivalent Award Values on Dates of Grant
                             -----------------------------------------------------
                               Noncash       Annual    Initial Service               Shares
Name                         Annual Fees     Award         Award           Total     Awarded
----                         -----------   ---------   ---------------   ---------   -------
                                                                      
James R. Baroffio..........    $    -      $  60,000       $    -        $  60,000    1,912
Edison C. Buchanan.........    $ 52,500    $     -         $    -        $  52,500    1,673
R. Hartwell Gardner........    $ 57,500    $  60,000       $    -        $ 117,500    3,744
James L. Houghton..........    $    -      $  60,000       $    -        $  60,000    1,912
Jerry P. Jones.............    $    -      $  60,000       $    -        $  60,000    1,912
Linda K. Lawson............    $    -      $     -         $    -        $     -        -
Andrew D. Lundquist........    $    -      $  30,000       $    -        $  30,000      882
Charles E. Ramsey, Jr......    $    -      $  60,000       $    -        $  60,000    1,912
Mark S. Sexton.............    $    -      $  30,000       $    -        $  30,000      882
Robert A. Solberg (a)......    $ 28,750    $     -         $    -        $  28,750    1,832
Jim A. Watson..............    $    -      $  30,000       $125,000      $ 155,000    4,668

------------
(a)  Mr.  Solberg  chose to receive  100  percent of his fees for the  2003-2004
     director  year in cash  and  100  percent  of his  fees  for the  2004-2005
     director  year  in  restricted  stock.  Restricted  stock  grants  for  the
     2004-2005  director year were awarded during 2004 which were only partially
     earned and vested as of December 31, 2004.




                                       12





Compensation of Executive Officers

     The  compensation  paid  to  the  Company's  executive  officers  generally
consists of base salaries,  annual bonuses, awards under the Plan, contributions
to the Company's 401(k) retirement plan, contributions to the Company's deferred
compensation retirement plan and miscellaneous perquisites.  The following table
summarizes the total  compensation for 2004, 2003 and 2002 awarded to, earned by
or paid to the following persons:

                           SUMMARY COMPENSATION TABLE


                                                                                Long-Term
                                                                              Compensation
                                           Annual Compensation            ----------------------
                                  --------------------------------------  Restricted   Shares
        Name and                                          Other Annual      Stock     Underlying    All Other
  Principal Position       Year     Salary     Bonus(b)  Compensation(c)   Awards(d)   Options    Compensation(e)
-----------------------    ----   -----------  --------  ---------------  ----------  ----------  ---------------
                                                                             
Scott D. Sheffield         2004   $775,000(a)  $775,000     $ 81,525      $1,522,448        -        $127,717
Chief Executive Officer    2003   $700,000     $919,000     $ 19,482      $  302,400     90,000      $ 93,155
                           2002   $700,000     $971,250     $ 19,211      $1,766,880    150,000      $ 92,797

Timothy L. Dove            2004   $382,417     $364,000     $  9,468      $  518,280        -        $ 58,742
President and              2003   $315,000     $302,000     $  5,004      $  100,800     30,000      $ 51,500
Chief Operating Officer    2002   $315,000     $349,650     $  4,954      $  588,960     50,000      $ 51,531

A.R. Alameddine            2004   $315,000     $189,000     $ 12,955      $  485,888        -        $ 52,000
Executive Vice President - 2003   $210,000     $165,375     $    -        $  100,800     20,500      $ 41,000
Worldwide Business         2002   $195,000     $175,500     $    -        $  319,020     26,500      $ 38,104
Development

Chris J. Cheatwood         2004   $315,000     $141,750     $ 19,405      $  485,888        -        $ 52,000
Executive Vice President - 2003   $315,000     $283,500     $  5,651      $  100,800     30,000      $ 51,500
Worldwide Exploration      2002   $260,000     $288,600     $  5,651      $  588,960     50,000      $ 46,024

Danny L. Kellum            2004   $315,000     $283,500     $  9,636      $  485,888        -        $ 52,000
Executive Vice President - 2003   $315,000     $283,500     $  8,981      $  100,800     30,000      $ 52,125
Domestic Operations        2002   $315,000     $349,650     $  8,981      $  588,960     50,000      $ 51,531

Mark L. Withrow (f)        2004   $315,000     $189,000     $ 15,158      $  485,888        -        $ 52,000
Executive Vice President   2003   $315,000     $142,000     $ 13,258      $  100,800     30,000      $ 51,500
and General Counsel        2002   $315,000     $349,650     $ 10,858      $  588,960     50,000      $ 52,096

---------------
(a)  Mr. Sheffield received $700,000 of his annual salary in cash and $75,000 in
     restricted stock.
(b)  Represents the amount awarded under the Company's annual bonus program that
     was paid  during the three  months  ended  March 31,  2005,  2004 and 2003,
     respectively.
(c)  For 2004, this column represents the following miscellaneous perquisites:





                                                                            Travel and
                                       Country                             Entertainment     Other
                                         Club     Vacation    Financial      Costs of      Estimated
                                         Dues    Repurchase   Counseling      Spouses      Perquisites   
                                       -------   ----------   ----------   -------------   -----------
                                                                            
       Scott D. Sheffield..........    $ 6,219    $ 13,463     $ 11,740       $ 48,103       $ 2,000
       Timothy L. Dove.............    $ 5,004    $    -       $    -         $  2,799       $ 1,665
       A. R. Alameddine............    $   -      $    -       $ 12,000       $    155       $   800
       Chris J. Cheatwood..........    $ 5,651    $    -       $ 12,000       $  1,254       $   500
       Danny L. Kellum.............    $ 2,923    $  6,058     $    -         $    155       $   500
       Mark L. Withrow.............    $ 7,200    $  6,058     $    -         $  1,055       $   845


     Other estimated perquisites provided during 2004 included the costs of life
     insurance,  officer physical  exams and  miscellaneous personal use of cell
     phones, computer and computer-related utilities provided for business use.


                                       13




(d)  The  value  of the  2004  restricted  stock  reported  in this  column  was
     determined  using the February 13, 2004 grant date closing  price of $30.85
     per share for the Company's  common stock as reported by the New York Stock
     Exchange  (the  "NYSE").   The  restricted  stock  grant  includes  vesting
     restrictions  that lapse on February  16,  2007.  The  restricted  stock is
     entitled to receive dividends,  if any, paid on the Company's common stock.
     Aggregate unvested  restricted stock grants as of December 31, 2004 and the
     corresponding  value  based on the  closing  price of the  common  stock as
     reported on the NYSE on  December  31,  2004  ($35.10  per share) are:  Mr.
     Sheffield, 133,350 shares, $4,680,586; Mr. Dove, 44,800 shares, $1,572,480;
     Mr. Alameddine, 32,705 shares, $1,149,525 and Messrs. Cheatwood, Kellum and
     Withrow 43,750 shares each, $1,535,625 each.
(e)  For 2004, this column includes (i)  contributions  to qualified  retirement
     plans of $20,500 each to Messrs.  Sheffield,  Dove, Alameddine,  Cheatwood,
     Kellum and  Withrow;  (ii)  contributions  to the  Company's  non-qualified
     deferred compensation retirement plan for Mr. Sheffield of $77,500; for Mr.
     Dove of $38,242; for Messrs. Alameddine,  Cheatwood,  Kellum and Withrow of
     $31,500 each; a $26,857  distribution  to Mr.  Sheffield from an affiliated
     employee partnership and (iii) a $2,860 premium with respect to a term life
     insurance policy for the benefit of Mr. Sheffield.
(f)  Effective March 7, 2005, Mr. Withrow was no longer an executive  officer of
     the Company.

     Directors  or executive  officers  may hold  working  interests in wells in
which the Company or a subsidiary is the operator and such holdings  participate
in the costs and revenues  attributable  to that working  interest in accordance
with customary industry terms.

     Long-Term  Incentive Plan. The Plan provides for employee and  non-employee
director  grants  in the  form of  stock  options,  stock  appreciation  rights,
restricted  stock,  restricted  stock units or  performance  units.  The maximum
number of shares of common  stock that may be issued  under the Plan is equal to
10 percent of the total number of shares of common stock equivalents outstanding
from  time to time  minus  the  total  number  of  shares  of stock  subject  to
outstanding  grants on the date of calculation  under any other stock-based plan
for  employees  or  directors  of the  Company.  The Plan had  8,307,237  shares
available  for  additional  awards at December  31,  2004.  The Company also had
557,335  shares  available  for grant under the  Employee  Stock  Purchase  Plan
("ESPP") as of December 31,  2004.  The  Company's  officers are not eligible to
participate in the ESPP.

     The Plan provides that awards may be forfeited or vested at  termination of
employment  depending  on the  circumstances  of  termination  and  whether  the
participant had a written employment agreement.  Messrs. Sheffield,  Withrow and
Paulsen have severance  agreements that are written employment  agreements under
the Plan. Under the Plan and those agreements,  their awards will fully vest and
become  exercisable if they resign for any reason  (including for good cause) or
without  reason so long as the  resignation  is not in  breach of their  written
agreements with the Company,  or if the Company  terminates  their employment in
breach of the written agreements. In general, the unvested portion of awards for
other participants in the Plan will become void upon termination of employment.

     The  Plan  provides  that  the  Compensation  and  Management   Development
Committee  may  determine  whether a  particular  award under the Plan will have
change-of-control   provisions.  In  general,  awards  under  the  Plan  contain
provisions  that provide that options and restricted  stock or restricted  stock
units will become  immediately  vested and  exercisable in full upon a change in
control and that options will remain  exercisable  for their full  original term
regardless  of  whether  and  how  the  holder's   employment  is   subsequently
terminated.

     No stock options,  stock appreciation rights or performance units have been
awarded under the Plan in 2004.


                                       14





     The  following  table  sets  forth,  for  each  named  executive   officer,
information  concerning the exercise of stock options during 2004, and the value
of unexercised stock options as of December 31, 2004:

      AGGREGATED OPTIONS EXERCISED DURING THE YEAR ENDED DECEMBER 31, 2004
              AND VALUE OF UNEXERCISED OPTIONS AT DECEMBER 31, 2004


                                                     Number of Securities           Value of Unexercised
                                                    Underlying Unexercised              In-the-Money
                          Shares                 Options at December 31, 2004   Options at December 31, 2004(a)
                        Acquired on    Value     ----------------------------   -------------------------------
Name                     Exercise     Realized   Exercisable    Unexercisable    Exercisable     Unexercisable
----                    -----------  ----------  -----------    -------------    -----------     -------------
                                                                               
Scott D. Sheffield....     60,000    $1,537,455    305,927         110,000       $ 4,722,152      $ 1,336,000
Timothy L. Dove.......     19,333    $  386,596    125,167          36,665       $ 2,159,427      $   445,316
A.R. Alameddine.......      6,666    $  130,487     75,583          22,499       $ 1,302,209      $   265,335
Chris J. Cheatwood....     18,167    $  314,957     64,501          36,665       $   939,576      $   445,316
Danny L. Kellum.......        -      $      -       51,001          36,665       $   708,313      $   445,316
Mark L. Withrow.......     22,499    $  442,012    138,667          36,665       $ 2,538,995      $   445,316

---------------
(a)  Amounts were calculated by multiplying the number of unexercised options by
     $35.10,  which  was the  closing  price of the  Company's  common  stock on
     December 31, 2004, and subtracting the aggregate  exercise price, which was
     determined  by  multiplying  the  unexercised  options by their  respective
     exercise prices and summing the result.



     Retirement  Plan.  The  Company  provides  a 401(k)  retirement  plan and a
non-qualified  deferred  compensation  retirement plan for executive officers of
the Company but does not provide defined benefit retirement plans or restoration
plans.  Hewitt  Associates  has advised the Company that providing only a 401(k)
retirement  plan  to its  executive  officers  is not a  competitive  retirement
benefit.

     The  non-qualified  deferred  compensation   retirement  plan  allows  each
participant  to  contribute  up to 25 percent of base  salary and 100 percent of
annual  bonus  payments.  The Company  provides a matching  contribution  of 100
percent of the  participant's  contribution  limited to the first ten percent of
the executive  officer's base salary. The Company's matching  contribution vests
immediately.  The non-qualified  deferred  compensation plan permits officers to
make investment allocation choices for both the executive officer's contribution
and the Company  match to  designated  mutual funds or  self-directed  brokerage
accounts included in the non-qualified  deferred  compensation plan. The Company
retains  the  right  to  maintain  these  investment   choices  as  hypothetical
investments or to actually invest in the executive officer's investment choices.
To date,  the Company has chosen to actually  invest the funds in the investment
options  selected by the executive  officers so that the investment  returns are
funded and do not create unfunded liabilities to the Company.

     The  following  table  sets  forth,  for  each  named  executive   officer,
information  concerning  the fair  values of vested  benefits  in the  Company's
non-qualified deferred compensation retirement plan through December 31, 2004:

      FAIR VALUES OF VESTED BENEFITS IN NON-QUALIFIED DEFERRED COMPENSATION
                    RETIREMENT PLAN THROUGH DECEMBER 31, 2004


                                                                     Investment
                                    Employee        Employer        Income (Loss)        Fair Value of
Name                              Contribution        Match       and Distributions     Vested Benefits
----                              ------------     ----------     -----------------     ---------------
                                                                            
Scott D. Sheffield.............    $  398,710      $  398,710        $ (55,047)(a)         $ 742,373
Timothy L. Dove................    $  182,742      $  182,742        $ 102,632             $ 468,116
A.R. Alameddine................    $  266,808      $  126,734        $ (27,387)            $ 366,155
Chris J. Cheatwood.............    $  135,372      $  135,372        $  65,091             $ 335,835
Danny L. Kellum................    $  165,269      $  165,269        $  64,398             $ 394,936
Mark L. Withrow................    $  177,567      $  177,567        $ (36,725)            $ 318,409

-----------
(a)  Includes  a $118,344  distribution  made  during  2001 in  accordance  with
     divorce proceedings.



                                       15





     Participants  may choose to receive  distributions of their vested benefits
from the non-qualified compensation plan as soon as administratively practicable
(i) after the date of  separation  from  service  with the Company or (ii) after
January 1 of the year next  following the date of  separation  from service with
the Company. Participants vested benefits may, at the option of the participant,
be  distributed  in one lump sum, in five annual  installments  or in ten annual
installments.

     Severance  Agreements.  The Company has entered into  severance  agreements
with its executive  officers.  Salaries and bonuses are set by the  Compensation
and Management  Development  Committee  independent of these  agreements and the
Compensation  and Management  Development  Committee can increase or reduce base
salaries at its discretion.

     Either the Company or the  executive  officer may  terminate  the officer's
employment  under the severance  agreement at any time. The Company must pay the
officer an amount equal to one year's base salary if the officer's employment is
terminated because of death,  disability or normal retirement.  The Company must
pay the officer an amount  equal to one year's base salary and  continue  health
insurance  for  the  executive  officer's  family  for one  year if the  Company
terminates the officer's  employment  without cause or if the officer terminates
employment  for good reason,  which is when  reductions  in the  officer's  base
annual  salary  exceed  specified   limits  or  when  the  executive   officer's
responsibilities  have been  significantly  reduced.  If within one year after a
change in control of the Company,  the Company  terminates the executive officer
without  cause,  or if the  executive  officer  terminates  employment  for good
reason, the Company must pay the executive officer an amount equal to 2.99 times
the sum of the executive  officer's base salary plus the greater of target bonus
for the current year or actual bonus for the previous  year and continue  health
insurance for one year,  or until the officer is eligible for Medicare,  for the
officer  and  their  respective  family.  If the  executive  officer  terminates
employment with the Company without reason between six months and one year after
a change in control, or at any time within one year after a change in control if
the  executive  officer  is  required  to move,  then the  Company  must pay the
executive  officer one year's base salary and continue health  insurance for the
executive officer's family for one year. Executive officers are also entitled to
additional  payments  for certain tax  liabilities  that may apply to  severance
payments following a change in control.

     Effective March 7, 2005, Mr. Withrow was no longer an executive  officer of
the Company.  His employment will terminate  following a transition  period.  As
provided  in his  severance  agreement,  Mr.  Withrow  will  receive a severance
payment of one year's base salary and in  accordance  with the Plan  conditions,
all stock options will vest and restrictions on all restricted stock will lapse.
Mr. Withrow has not received  additional stock options or restricted stock other
than what has already been described in footnote (d) of the Summary Compensation
Table and in the Aggregated Options Exercised during the year ended December 31,
2004 and Value of Unexercised Options at December 31, 2004 table.

     Indemnification  Agreements.  The Company has entered into  indemnification
agreements  with  each of its  directors  and  most of its  executive  officers,
including the named executive officers.  Those agreements require the Company to
indemnify the directors and executive  officers to the fullest extent  permitted
by the Delaware  General  Corporation Law and to advance  expenses in connection
with certain claims against directors and officers. The Company expects to enter
into similar  agreements  with persons  selected to be directors  and  executive
officers in the future. Each indemnification  agreement also provides that, upon
a potential change in control of the Company and if the indemnified  director or
executive  officer so requests,  the Company will create a trust for the benefit
of the  indemnified  director or executive  officer in an amount  sufficient  to
satisfy  payment of all  liabilities  and suits  against  which the  Company has
indemnified the director or executive officer.

     Directors'  and  Officers'  Insurance.   The  Company  maintains  customary
directors' and officers' insurance coverage.


                                       16





                COMPENSATION AND MANAGEMENT DEVELOPMENT COMMITTEE
                      INTERLOCKS AND INSIDER PARTICIPATION

     The  Compensation and Management  Development  Committee is responsible for
approving  all  compensation  awards for all executive  officers,  including the
named executive  officers.  The committee also approves all long-term  incentive
awards and perquisites.  The committee  operates under a written charter adopted
by the Board.

                COMPENSATION AND MANAGEMENT DEVELOPMENT COMMITTEE
                        REPORT ON EXECUTIVE COMPENSATION

     The  Compensation  and  Management  Development  Committee  of the Board of
Directors   submits  the   following   report  with  respect  to  the  executive
compensation program of the Company.

Compensation Principles and Philosophy

     The overriding responsibility of the committee is to maintain the Company's
executive  officers'  compensation  program so that it  attracts  and  retains a
capable and highly motivated senior  management team and aligns the compensation
of the Company's  executive officers with the Company's  strategic business plan
to increase  stockholder  value.  During 2004,  the  committee  retained  Hewitt
Associates  to assist and advise it in its efforts to establish  and  administer
fair  and  competitive  compensation  and  incentive  policies.  These  policies
emphasize  variable  compensation  and  structure the annual bonus and long-term
incentive  awards to be a significant  portion of an executive  officer's  total
compensation so that total compensation is reflective of the executive officer's
individual  performance  and the Company's  performance.  Beginning in 2004, the
committee elected to change the long-term incentive awards from a combination of
stock  options and  restricted  stock to a  performance-based  restricted  stock
program to further  emphasize  performance  and alignment of  stockholders'  and
executive  officers'  interests.  The  committee  has  adopted  a policy  of not
repricing  stock  options and  incorporated  that  policy  into the Plan.  Other
critical elements of the Company's  compensation and incentive  policies provide
for:

      o    Base salaries at or slightly above median levels compared to industry
           survey information and peer group proxy analysis.

      o    Annual target  bonus levels  slightly above  median with payouts that
           are based on both individual and Company performance.

      o    Long-term incentive target award levels that are above median.

      o    Significant stock ownership by directors, the Chief Executive Officer
           and all executive officers.

To support the commitment to significant stock ownership,  the Company's current
common stock ownership guidelines are as follows:

      o    Non-employee directors' stock value equal to at least five times each
           director's annual base retainer fee.  The non-employee directors have
           three  years  after joining  the  board  of  directors  to  meet  the
           guideline.

      o    Chairman of the Board and  Chief Executive Officer  stock value equal
           to at least five times his annual base salary.

      o    President and other named  executive officers stock value equal to at
           least three  times their  annual base salary. The president and other
           named executive officers, generally, have two years after becoming an
           officer to meet the guideline.

     In determining  compliance with these guidelines,  the committee  considers
its  expectations of the long- term value of the Company's  common stock and the
current trading levels. All named executive  officers,  including Mr. Sheffield,
and all directors are in compliance with the ownership guidelines.


                                       17





     The Omnibus Budget  Reconciliation  Act of 1993 placed  restrictions on the
deductibility  of executive  compensation  paid by public  companies.  Under the
restrictions,  the Company is not able to deduct compensation paid to any of the
named executive  officers in excess of $1,000,000 unless the compensation  meets
the definition of "performance-based compensation" as required in Section 162(m)
of the Internal Revenue Code of 1986, as amended.  Nondeductibility could result
in  additional  tax  costs to the  Company.  The  committee  generally  tries to
preserve the deductibility of all executive compensation if it can do so without
interfering with the Company's  ability to attract and retain capable and highly
motivated senior management.  The Company's annual incentive bonus plan does not
meet the  definition of  performance-based  compensation  as required in Section
162(m)  primarily  because the annual incentive bonus plan is not formula driven
and  the  committee  retains  the  right  to  make  subjective   evaluations  of
performance  including an assessment  of how  effectively  management  adapts to
changing industry conditions and opportunities  during the Company's bonus year.
Performance-based  share  restricted stock awards do not qualify as performance-
based   compensation  under  Section  162(m).   Accordingly,   the  portions  of
compensation  paid  to our  named  executive  officers  in  2004  that  exceeded
$1,000,000  (other than from the exercise of stock  options) are  generally  not
deductible. The committee believes it is in the best interest of shareholders to
continue with a discretionary  element in the annual incentive bonus program and
to make  performance  share  awards  in the  form  of  restricted  stock  to the
Company's officers instead of stock options.

Elements of Compensation

     The elements of the  compensation  program the  committee  administers  for
executive  officers,  including  the Chief  Executive  Officer,  consist of base
salaries,  annual  bonuses,  awards  made under the Plan,  contributions  to the
Company's 401(k) retirement plan,  contributions to the Company's  non-qualified
deferred  compensation  retirement  plan  and  miscellaneous  perquisites.  Base
salaries,  annual  bonuses and long-term  incentives  are  discussed  separately
below; however, the committee considers the aggregate remuneration of executives
when evaluating the executive compensation program.

     Base Salaries. An executive's base salary is viewed as a fixed component of
total compensation that should be competitive with companies similar in terms of
business strategy to the Company. The committee has targeted base salaries at or
slightly  above the median level for companies of similar  business  strategy to
the  Company.  The  committee  evaluates  the  base  salaries  of the  Company's
executive  officers on the basis of competitive base salary survey data provided
by  Hewitt   Associates  and   consideration   of  each  officer's   duties  and
responsibilities.  The committee views the executives  below the Chief Executive
Officer  level as a team with  diverse  duties but with  similar  authority  and
responsibility.  Hewitt Associates  historically has provided base salary survey
data  on the  majority  of the  Company's  peer  group  companies,  a  group  of
independent exploration and production companies with similar asset, revenue and
capital  investment  profiles as the Company.  While the peer group  provided by
Hewitt Associates includes some of the members of the Dow Jones U.S. Exploration
and  Production  Index  (the "DJ E&P  Index,"  formerly  known as the Dow  Jones
Exploration and Production  Index) reflected in the performance  graph set forth
under "Company  Performance"  below, it does not include all of the companies in
that peer group and includes other  companies  with which the Company  competes.
The  committee  determines  the base  salary  for all  officers,  including  Mr.
Sheffield, using the same methodology.

     For 2005, Mr. Sheffield's annual base salary was increased from $775,000 to
$825,000.  Hewitt Associates  indicated Mr. Sheffield's annual base salary is at
the 50th percentile level. The base salary of the other named executive officers
was increased for 2005 to a level which Hewitt Associates  advises,  as a group,
are also at approximately the 50th percentile.


                                       18





     Annual Bonuses. Each year the committee establishes a target bonus for each
executive officer based on the target bonus median levels of executive  officers
in similar positions at peer group companies.  To maintain internal equity,  the
level  of  responsibility,  scope  and  complexity  of the  executive  officer's
position are considered. The range of awards for the annual incentive bonus plan
can range from 0 to 200 percent of target.  The 2005 target  bonus level for Mr.
Sheffield  did not change;  however the target  bonus levels for the other named
executive officers increased to reflect competitive market conditions.  The 2005
target bonus levels for the named  executive  officers were identified by Hewitt
Associates as being slightly  above the median level.  In awarding 2004 bonuses,
the Company reviewed the following criteria that are important to the success of
the Company's business plan:

                      o   Net asset value per share
                      o   Return on equity
                      o   Return on capital employed
                      o   Operating cost per BOE
                      o   Debt/Book capitalization
                      o   Investment grade credit ratings
                      o   Reserve replacement
                      o   Finding and development cost per BOE
                      o   Production growth
                      o   General and administrative costs per BOE
                      o   Growth of share value
                      o   Safety and environmental performance

     In determining the executive  officers' annual bonus awards,  the committee
also  evaluated the Company's  stock  performance in relation to its peer group.
The committee did not employ a formula or  predetermined  weighting of the above
financial and operational  performance criteria, but does compare actual results
to target goals. The committee evaluates Company performance in light of oil and
gas industry  fundamentals  and assesses how  effectively  management  adapts to
changing industry  conditions and  opportunities  during the year. The committee
observes  and  evaluates  the  individual   performance  of  executive  officers
throughout  the year and  specifically  evaluates  Mr.  Sheffield's  performance
relative to the Company's performance in achieving the Company's goals.

     For 2004,  the  committee  awarded Mr.  Sheffield  and one named  executive
officer a cash bonus at target level,  two named  executives  above target level
and one named executive  below target.  The Company  successfully  completed the
strategic  acquisition  of  Evergreen  during 2004 and  achieved  the  following
results:

                      o   Return on equity of 14 percent
                      o   Return on capital employed of 9 percent
                      o   Base operating costs of $3.85 per BOE
                      o   Debt to total capitalization ratio of 46 percent
                      o   Received investment grade credit ratings
                      o   Reserve replacement of 441 percent
                      o   Finding and development cost per BOE of $10.48
                      o   Production growth of 22 percent
                      o   General and administrative cost of $1.17 per BOE
                      o   2004 stock price increase of 10 percent


                                       19





     Regarding stock  performance,  the Company's  three-year  cumulative  total
return based on stock price  performance  has exceeded the Standard & Poor's 500
Index  (the  "S&P  500")  and is  slightly  below the DJ E&P Index per the graph
below. In addition,  the Company's stock price hit a five-year high of $37.50 in
July 2004.



                COMPARISON OF THREE-YEAR CUMULATIVE TOTAL RETURN
                      AMONG THE COMPANY, THE S&P 500 INDEX
                            AND THE DJ E&P INDEX (a)

                                     Pioneer
                                     Natural                     DJ
                  Year ended        Resources        S&P         E&P
                 December 31,        Company         500        Index
                 ------------       ---------       -----       -----
                                                     
                     2001              100           100         100
                     2002              131            78         102
                     2003              166           100         134
                     2004              183           111         190


                 ---------------
                 (a)  Assumes  $100 invested on  December 31,  2001 in  stock or
                      index, including reinvestment of dividends.




     Long-Term  Incentives.  The value of the long-term incentive awards granted
to Mr.  Sheffield in 2004 was determined by a comparison of long-term  incentive
grants made to the Chief Executive  Officers of peer group companies.  The value
of long-term  incentives  granted to each  executive  officer was  determined by
comparing the value of awards granted to peer company executives holding similar
positions,  and their  individual  award levels were  averaged to determine  the
actual  awards to executive  officers of the Company.  The award levels were not
influenced  by the  current  stock  holdings  of  the  executive  officers.  The
Company's  philosophy  is to target  long-term  incentives  with values that are
above market  average.  For 2004,  Mr.  Sheffield  was awarded  49,350 shares of
restricted  stock,  excluding the  equivalent  value of $75,000 of annual salary
received in restricted stock in lieu of cash.  Hewitt  Associates  concluded the
2004 award levels placed Mr. Sheffield and the other named executive officers as
a group at approximately the 60th level for long-term incentive awards among the
peer group.  For 2005,  Mr.  Sheffield  was awarded  63,000 shares of restricted
stock.

     A  significant   portion  of  an  executive  officer's  total  compensation
opportunity is comprised of long-term  incentive  awards,  which are intended to
align executive officer's interests in long-term growth and success more closely
with the interests of the Company's stockholders.


                                       20





     Beginning in 2004,  to achieve this  alignment  and to emphasize  long-term
performance,  the committee uses  performance-based  share awards under the Plan
for executive  officers.  No stock options were awarded to Mr.  Sheffield or the
other executive  officers for 2004. This program  establishes  restricted  stock
award  targets  for Mr.  Sheffield  and each  executive  officer  determined  by
comparing the value of awards granted to peer company executives holding similar
positions.  Restricted  stock  awarded under this program will have a three-year
cliff vesting requirement.

     The number of restricted shares awarded each year as a percentage of target
award  levels is  determined  by a  three-step  process.  First,  the  committee
conducts a subjective evaluation of the internal Company performance against the
following one- and three-year metrics:


          One-year metrics                             Three-year metrics
          ---------------                              ------------------
                                                 
          Production growth                            Reserve replacement
          Operating cost per BOE                       Finding and development cost per BOE
          General and administrative costs per BOE     Net asset value per share
          Debt statistics


     Next,  to finalize the award level for the executive  group,  the committee
considered the Company's total shareholder  return results compared to the total
shareholder return of the Company's peer group for each of the last three years.
Finally,  the committee  conducts an evaluation of each  executive's  individual
performance.  The committee  concluded  that Mr.  Sheffield  performed at target
levels in  relation  to the  internal  one and  three-year  metrics  for Company
performance.  The Company's stock price  performance  compared to the peer group
was below target expectations;  however, Mr. Sheffield's  individual performance
was above target levels  reflected by the successful  expansion of the Company's
proved  reserve  base,  improvement  in the  Company's  balance sheet to achieve
investment  grade credit ratings and the expansion of exploration  opportunities
during 2004. Overall, the committee's evaluation of Mr. Sheffield's  performance
resulted in a long-term incentive award at 100 percent of target level.

     Other  Compensation.  In  addition  to base  salaries,  annual  bonuses and
long-term  incentive  awards,  the  committee  reviews  all other  benefits  and
perquisites  to  determine  if the  total  compensation  package  for  corporate
officers is fair, reasonable and competitive. Hewitt Associates has reviewed the
Company-provided benefits and perquisites and concluded that the Company's total
retirement  value  provided to  executive  officers is well below market and the
Company's perquisite offerings are conservative versus the market.

     In December 2004, the Company  acquired a fractional  interest in a private
aircraft. This aircraft will be made available for business use to the executive
officers  and other  employees of the Company.  The  Company's  policy is to not
permit employees, including executive officers, to use the aircraft for personal
use.  The Company  expects  there will be occasions  when a personal  guest will
accompany  an employee on a business  related  flight.  In such  instances,  the
Company will follow the Internal  Revenue  Service  rules and,  where  required,
impute income to the employees  based on the Standard  Industry Fare Level rates
provided by the Internal Revenue Service.

     All  compensation  arrangements  for Mr.  Sheffield and the named executive
officers  have  been  tallied  up,  reviewed  with  the  Company's  compensation
consultant and deemed to be fair, competitive and not excessive.


                                       21






     Mr.  Sheffield's  total  compensation  paid  by the  Company  for  2004  is
summarized below:

                                                                 
             Base pay.................................     $    775,000
             Annual bonus.............................          775,000
             Long-Term Incentive awards (a)...........        1,522,448
             Retirement plan contributions (b)........           98,000
             Other perquisites (c) (d)................           84,385
                                                             ----------
                 Total................................     $  3,254,833
                                                            ===========

----------
(a)  Based on grant date closing  price of $30.85 of  restricted  stock  awarded
     during  2004.
(b)  401(k) plan and non-qualified deferred compensation retirement plan.
(c)  Includes the estimated costs of life insurance, country club dues, vacation
     repurchase,  officer physical,  financial  consulting  service,  travel and
     entertainment costs of Mr. Sheffield's  spouse, and miscellaneous  personal
     use of a cell phone,  computer and computer-related  utilities provided for
     business use.
(d)  Does not include a value for all other  broad-based  benefits  available to
     all employees.



     In  summary,  the  Company  believes a  significant  portion  of  executive
compensation  should be  variable  and  performance-based  so that an  executive
officer's  total  compensation  opportunity is linked to the  performance of the
individual,  the  Company and its stock  price.  The  majority  of an  executive
officer's total compensation is variable and at-risk.  This structure allows the
Company to  administer  overall  compensation  that rises or falls  based on the
Company's   performance  while  maintaining  a  balance  between  the  Company's
short-term and long-term objectives.

Compensation and Management Development Committee of
The Board of Directors

Edison C. Buchanan, Chairman
James R. Baroffio, Member
Andrew D. Lundquist, Member
Charles E. Ramsey, Jr., Member


                                       22





                             AUDIT COMMITTEE REPORT

     The Audit  Committee's  purpose is to assist the Board of  Directors in its
oversight of the Company's internal controls, financial statements and the audit
process. The Board of Directors,  in its business judgment,  has determined that
all members of the  committee  are  independent  as  required  under the listing
standards of the NYSE. The committee  operates  pursuant to a charter adopted by
the Board of Directors. A copy of the current charter is posted on the Company's
website at www.pioneernrc.com.

     Management is responsible for the  preparation,  presentation and integrity
of the  Company's  financial  statements,  accounting  and  financial  reporting
principles,  and internal controls and procedures  designed to assure compliance
with accounting  standards and applicable laws and regulations.  The independent
auditors, Ernst & Young LLP, are responsible for performing an independent audit
of the consolidated  financial  statements in accordance with generally accepted
auditing standards.

     In performing its oversight  role, the committee has reviewed and discussed
the audited financial  statements with management and the independent  auditors.
The  committee  has also  discussed  with the  independent  auditors the matters
required  to  be  discussed  by   Statement  on  Auditing   Standards   No.  61,
Communication  with Audit Committees,  as currently in effect. The committee has
received the written  disclosures and the letter from the  independent  auditors
required by Independence Standards Board Standard No. 1, Independent Discussions
with Audit Committees, as currently in effect. The committee has also considered
whether the performance of other non-audit services by the independent  auditors
is compatible with maintaining the auditors' independence and has discussed with
the auditors the auditors' independence.

     Based on the reports and discussions  described in this Report, and subject
to the limitations on the roles and  responsibilities  of the committee referred
to below and in the charter, the committee recommended to the Board of Directors
that the audited  financial  statements be included in the Annual Report on Form
10-K  for the year  ended  December  31,  2004,  for  filing  with the SEC.  The
committee  has also  recommended  the  selection  of the  Company's  independent
auditors.

     The members of the committee are not professionally engaged in the practice
of  auditing  or  accounting  for the  Company  and are not  experts  in auditor
independence  standards.  Members  of the  committee  rely  without  independent
verification on the information provided to them and on the representations made
by  management  and  the  independent  auditors.  Accordingly,  the  committee's
oversight does not provide an independent basis to determine that management has
maintained   appropriate   accounting  and  financial  reporting  principles  or
appropriate  internal controls and procedures designed to assure compliance with
accounting  standards and  applicable  laws and  regulations.  Furthermore,  the
committee's  considerations and discussions referred to above do not assure that
the  audit  of the  Company's  financial  statements  has  been  carried  out in
accordance  with  generally  accepted  auditing  standards,  that the  financial
statements  are  presented in  accordance  with  generally  accepted  accounting
principles or that Ernst & Young LLP is in fact independent.

Audit Committee of
The Board of Directors

James L. Houghton, Chairman
R. Hartwell Gardner, Member
Jerry P. Jones, Member
Linda K. Lawson, Member
Robert A. Solberg, Member
Jim A. Watson, Member


                                       23





                              CORPORATE GOVERNANCE

Corporate Governance Principles

     The  Board of  Directors  believes  that  sound  governance  practices  and
policies  provide an important  framework to assist it in fulfilling its duty to
shareholders.  In March  2003,  the  Board of  Directors  formally  adopted  the
Company's Corporate Governance  Principles,  which cover the following principal
subjects:

          o    Role and functions of the Board of Directors
          o    Qualifications and independence of directors
          o    Size of the Board of Directors and selection process
          o    Committee functions and independence of committee members
          o    Meetings of non-employee directors
          o    Self-evaluation
          o    Ethics and  conflicts of interest  (a copy of the current Code of
               Business Conduct and Ethics is posted on the Company's website at
               www.pioneernrc.com)
          o    Reporting of  concerns to  non-employee  directors  or the  Audit
               Committee
          o    Compensation  of the  Board  of  Directors  and  stock  ownership
               requirements
          o    Succession  planning  and  annual  compensation review  of senior
               management
          o    Access to senior management and to independent advisors
          o    Director orientation and continuing education
          o    Evaluation of corporate governance principles

     The Corporate Governance  Principles are posted on the Company's website at
www.pioneernrc.com/governance.  The  Corporate  Governance  Principles  will  be
reviewed periodically and as necessary by the Company's Nominating and Corporate
Governance  Committee,  and  any  proposed  additions  to or  amendments  of the
Corporate Governance  Principles will be presented to the Board of Directors for
its approval.

     The  NYSE  has  adopted  rules  that  require  listed  companies  to  adopt
governance  guidelines  covering certain matters.  The Company believes that the
Corporate Governance Principles comply with the NYSE rules.

Director Independence

     The Company's standards for determining  director  independence require the
assessment of directors' independence each year. A director cannot be considered
independent  unless the Board of Directors  affirmatively  determines that he or
she does not have any  relationship  with  management  or the  Company  that may
interfere with the exercise of his or her independent judgment, including any of
the  relationships  that would  disqualify  the director from being  independent
under the rules of the NYSE.  As  contemplated  by the NYSE rules,  the Board of
Directors  has also  adopted  categorical  standards  to assist  in  determining
whether any material  relationship  with the Company or its  management  exists.
Directors  who  have  any  of the  relationships  outlined  in  the  categorical
standards  are  considered  to have  relationships  that  require  the  Board of
Directors'  review of the full  facts and  circumstances  in order to  determine
whether  the  relationship  impairs  the  independence  of  the  director.   The
categorical  standards  are set forth under  "Independence  of Directors" in the
Company's "Corporate Governance Principles" and are:

1.   The director has no material relationship with the Company, either directly
     or as a  partner,  shareholder  or officer  of an  organization  that has a
     relationship with the Company;
2.   the director, or any member of the director's family, has not been employed
     by the Company in the last five years;
3.   the director, or any member of the director's family, has not been employed
     by, or affiliated with, the Company's auditor in the last five years;
4.   the director,  or any member of the director's family, has not been part of
     an interlocking directorate in the last five years;
5.   the  director,  or any member of the  director's  family,  does not receive
     non-director compensation from the Company;

                                       24





6.   the director does not own more than 4.9 percent of the Company's shares;
7.   the director does not serve on more than three other public company boards;
     and
8.   the director does not serve on the board of another E&P company.

     In March 2005,  the Board of Directors  assessed the  independence  of each
non-employee  director  under the Company's  guidelines.  The Board of Directors
affirmatively  determined that all eleven non-employee  directors (Dr. Baroffio,
Mr. Buchanan,  Mr. Gardner, Mr. Houghton, Mr. Jones, Mrs. Lawson, Mr. Lundquist,
Mr. Ramsey, Mr. Sexton, Mr. Solberg and Mr. Watson) are independent.

     The  Board  of  Directors  reviewed  the  facts  and  circumstances  of Mr.
Lundquist's  and  Mr.  Sexton's  interests  in the  Company's  transaction  with
Evergreen, of which Mr. Lundquist was an independent director and Mr. Sexton was
the Chairman of the Board, President and Chief Executive Officer, as well as Mr.
Sexton's  payments under his change of control  agreement with Evergreen and his
non-competition  agreement  with the Company.  The Board of Directors  concluded
that Mr. Lundquist's economic interest in the Evergreen  transaction was limited
to his  holdings  as a  security  holder  and that his  prior  activities  as an
independent  director  of  Evergreen  would not  impair  his  independence  as a
director of the Company.  The Board of Directors  similarly  concluded  that Mr.
Sexton was an independent  director  because Mr. Sexton ceased to be an employee
of  Evergreen at the time of the merger,  because his economic  interest in that
transaction  existed as an employee and  stockholder of Evergreen (both of which
ceased at the merger or upon settlement of the dispute relating to the amount of
change of control  payments  due him  because of the  merger),  and  because the
payment for his new  non-competition  agreement did not  constitute  payment for
services to the Company since it was not contingent on continuing service.

     The Board of Directors  also  reviewed the facts and  circumstances  of Mr.
Jones'  relationship  with a law firm from which he had retired in January  1998
and in which he holds the title "of  counsel."  Because Mr. Jones has no role in
or economic  interest in that firm and receives payments only under a retirement
savings  plan,  the  Board  of  Directors  concluded  that  Mr.  Jones'  limited
relationship  with that firm was not  material  and that it would not impair his
independent judgment.

     In connection with its assessment of the independence of each  non-employee
director,  the Board of Directors also  determined that each member of the Audit
Committee  meets  the  additional  independence  standards  of the  NYSE and SEC
applicable to members of the Audit Committee.  Those standards  require that the
director  not be an  affiliate  of the Company and that the director not receive
from the Company,  directly or  indirectly,  any  consulting,  advisory or other
compensatory fees except for fees for services as a director.

Certifications

     The Company  submitted  a Section  12(a) Chief  Executive  Officer  ("CEO")
Certification  to the NYSE in 2004 regarding the Company's  compliance  with the
NYSE  corporate   governance  listing  standards.   The  certification  was  not
qualified.   The  Company  also  filed  the  CEO  and  Chief  Financial  Officer
certifications  required under Section 302 of the  Sarbanes-Oxley Act of 2002 as
exhibits to its Annual Report on Form 10-K for the year ended December 31, 2004.

Election of Lead Director

     In  February  2004,  the  Board  of  Directors   reelected  Mr.  Ramsey,  a
non-employee director, to serve as the Lead Director,  meaning he is chairman of
the regular private meetings of the independent directors and the Nominating and
Corporate  Governance  Committee.  Utilizing input from all directors,  the Lead
Director  will (i) work with the CEO and Chairman of the Board to determine  the
appropriate agenda and information package for Board of Director meetings;  (ii)
meet with the CEO and Chairman of the Board,  senior  management  and individual
directors,  as required, to facilitate effective  communications and information
flow;  (iii) take a  leadership  role in CEO  succession  and senior  management
development;  (iv) take a  leadership  role in director  evaluation,  continuing
education,  recruiting and orientation; and (v) serve as the Board of Directors'
contact for direct  employee and  stockholder  communications  with the Board of
Directors.


                                       25





Financial Literacy of Audit Committee and Designation of Financial Experts

     In February 2005, the Board of Directors evaluated the members of the Audit
Committee for financial  literacy and the attributes of a financial expert.  The
Board of  Directors  determined  that each of the  Audit  Committee  members  is
financially  literate and that three of the Audit Committee members (Mrs. Lawson
and Messrs. Gardner and Houghton) are financial experts as defined by the SEC.

Procedure for Directly Contacting the Board of Directors
and Whistleblower Policy

     A means for  stockholders  and  employees to contact the Board of Directors
directly  (including the Lead Director) has been established and is published on
the Company's website at www.pioneernrc.com.  Matters for which this contact may
be used  include  allegations  about  actions of the  Company or its  directors,
officers or employees involving (i) questionable  accounting,  internal controls
and auditing matters;  (ii) materially misleading statements or omissions in SEC
reports, press releases, or other public statements or other forms of wire, mail
or  securities  fraud or (iii)  dishonest  or  unethical  conduct,  conflicts of
interest,  violations of the Company's  code of ethics or business  conduct,  or
violation of laws. Information may be submitted  confidentially and anonymously,
although  the Company may be obligated  by law to disclose  the  information  or
identity of the person  providing the  information in connection with government
or private legal actions and in some other  circumstances.  The Company's policy
is not to  retaliate  against any  director,  officer or employee  who  provides
truthful information relating to a violation of law or Company policies.


                                       26





                               COMPANY PERFORMANCE

     The  following  graph and chart  compare  the  Company's  cumulative  total
stockholder  return on common stock during the five-year  period ended  December
31, 2004, with cumulative  total  stockholder  return during the same period for
the S&P 500 and the DJ E&P Index as prescribed  by the SEC rules.  The following
graph and chart show the value, at December 31 in each of 2000, 2001, 2002, 2003
and 2004 of $100 invested at December 31, 1999, and assume the  reinvestment  of
all dividends:


                 COMPARISON OF FIVE-YEAR CUMULATIVE TOTAL RETURN
                      AMONG THE COMPANY, THE S&P 500 INDEX
                            AND THE DJ E&P INDEX (a)



                                    Pioneer
                                     Natural                     DJ
                  Year ended        Resources        S&P         E&P
                 December 31,        Company         500        Index
                 ------------       ---------       -----       -----
                                                     
                     1999              100           100         100
                     2000              220            91         160
                     2001              215            80         147
                     2002              283            62         150
                     2003              357            80         196
                     2004              395            89         279




                                                    Year ended December 31,
                                          --------------------------------------------
                                          1999    2000    2001    2002    2003    2004
                                          ----    ----    ----    ----    ----    ----
                                                                 
     Pioneer Natural Resources Company     100     220     215     283     357     395
     S&P 500                               100      91      80      62      80      89
     DJ E&P Index                          100     160     147     150     196     279

     ---------------
     (a) Assumes $100 invested on December 31, 1999 in stock or index, including
         reinvestment of dividends.




                                       27





         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The following table sets forth certain information regarding the beneficial
ownership of common stock as of March 15, 2005,  by (i) each person who is known
by the Company to own  beneficially  more than five  percent of the  outstanding
shares of common  stock,  (ii) each  director of the  Company,  (iii) each named
executive  officer of the Company and (iv) all directors and executive  officers
as a group:



                                                                   Number of       Percentage
Name of Person or Identity of Group                                  Shares        Of Class (a)
-----------------------------------                                ----------      ------------
                                                                             
Southeastern Asset Management, Inc. (c)........................    13,619,600           9.5
Longleaf Partners Fund
O. Mason Hawkins
6410 Poplar Avenue, Suite 900
Memphis, Tennessee  38119

Nueberger Berman, Inc. (d).....................................    11,528,291           8.0
Nueberger Berman, LLC
Nueberger Berman Management, Inc.
605 Third Ave.
New York, New York 10158-3698

Highfields Capital Management LP (e)...........................     9,390,211           6.5
Highfields GP LLC
Jonathan S. Jacobson
Richard L. Grubman
Highfields Capital I LP
Highfields Capital II LP
Highfields Capital Ltd
c/o Highfields Capital Management
John Hancock Tower
200 Clarendon Street, 51st Floor
Boston, Massachusetts 02116

Scott D. Sheffield (f) (g) (h).................................       678,233            (b)

Timothy L. Dove (f) (h) (i)....................................       241,900            (b)

A.R. Alameddine (f) (h) (i) ...................................       128,785            (b)

Chris J. Cheatwood (f) (h) (i) (j).............................       147,681            (b)

Danny L. Kellum (f) (h) (i)....................................        86,954            (b)

James R. Baroffio (f) (h) (k)..................................        39,621            (b)

Edison C. Buchanan (h).........................................        10,898            (b)

R. Hartwell Gardner (f) (h)....................................        56,353            (b)

James L. Houghton (f) (h) (l)..................................        27,943            (b)

Jerry P. Jones (f) (h).........................................        27,464            (b)

Linda K. Lawson (h) (m)........................................         6,781            (b)

Andrew D. Lundquist (f) (h)....................................        22,369            (b)

Charles E. Ramsey, Jr. (f) (h).................................        38,265            (b)

Mark S. Sexton (f) (h) (m).....................................       225,371            (b)

Robert A. Solberg (h) .........................................         9,413            (b)

Jim A. Watson (h)..............................................         6,168            (b)

All directors and officers as a group (43 persons) (h) (n).....     2,752,867           1.9

---------------
(a)  Based on 143,845,045 shares of common stock outstanding.
(b)  Does not exceed one percent of class.



                                       28





(c)  The Schedule 13G/A filed with the SEC on February 8, 2005, which is a joint
     statement on Schedule 13G/A filed by Southeastern  Asset  Management,  Inc.
     ("Southeastern"),  Longleaf Partners Fund and O. Mason Hawkins ("Hawkins"),
     states that the  statement is being filed by  Southeastern  as a registered
     investment adviser, and that all of the securities covered by the statement
     are owned legally by  Southeastern's  investment  advisory clients and none
     are owned  directly or  indirectly  by  Southeastern.  The  Schedule  13G/A
     further states that the statement is also being filed by Hawkins,  Chairman
     of the Board and CEO of Southeastern, in the event he could be deemed to be
     a controlling  person of that firm as the result of his official  positions
     with or ownership of its voting  securities.  The existence of such control
     is expressly  disclaimed.  Hawkins does not own directly or indirectly  any
     securities covered by the Schedule 13G/A for his own account.
(d)  The Schedule 13G filed with the SEC on February 14, 2005,  which is a joint
     statement on Schedule 13G filed by Neuberger Berman, Inc., Neuberger Berman
     LLC and Neuberger Berman  Management,  Inc.,  states that Neuberger Berman,
     LLC and  Neuberger  Berman  Management,  Inc.  are deemed to be  beneficial
     owners  since  they both have  shared  power to make  decisions  whether to
     retain  or  dispose  and vote the  securities  that are  actually  owned by
     clients of Neuberger Berman,  LLC. Neuberger Berman,  Inc. owns 100 percent
     of both Neuberger Berman LLC and Neuberger Berman Management, Inc. and does
     not own over one percent of the Company.
(e)  The  Schedule  13G/A filed with the SEC on February  14,  2005,  which is a
     joint  statement  on  Schedule  13G/A  filed by  Highfields  Capital  I LP,
     Highfields  Capital II LP and Highfields  Capital Ltd.  (collectively,  the
     "Funds"),  Highfields Capital Management LP, Highfields GP LLC, Jonathan S.
     Jacobson and Richard L. Grubman (collectively,  "Highfields"),  states that
     the  shares   beneficially  owned  by  Highfields  Capital  Management  LP,
     Highfields  GP LLC,  Jonathan S. Jacobson and Richard L. Grubman are shares
     beneficially  owned by the Funds and such beneficial  owners have the power
     to direct  the  dividends  from or the  proceeds  of the sale of the shares
     owned by the Funds. The Funds  individually do not own five percent or more
     of the  Company's  outstanding  securities.  On a March 25,  2005  Schedule
     13G/A,  Highfields  reported  an increase  in their  holdings of  1,820,000
     shares on March 16, 2005. Such shares are not reflected in the table above.
(f)  Includes the following  number of shares subject to stock options that were
     exercisable  at or within 60 days  after  March 15,  2005:  Mr.  Sheffield,
     298,000; Mr. Dove, 141,834; Mr. Alameddine,  74,000; Mr. Cheatwood, 81,168;
     Mr. Kellum, 16,667; Dr. Baroffio, 23,956 (including 3,956 shares subject to
     stock options held in a trust over which Dr. Baroffio is the trustee);  Mr.
     Gardner,  37,807; Mr. Houghton,  16,000; Mr. Jones,  10,000; Mr. Lundquist,
     13,924; Mr. Ramsey, 24,153 and Mr. Sexton, 100,000.
(g)  Includes 5,000 shares held in Mr. Sheffield's investment retirement account
     and 12,607 shares held in Mr. Sheffield's 401(k) account.
(h)  Includes the following number of unvested restricted shares: Mr. Sheffield,
     196,350; Mr. Dove, 68,800; Mr. Alameddine,  46,750; Mr. Cheatwood,  57,750;
     Mr. Kellum, 57,750; Dr. Baroffio,  1,912; Mr. Buchanan, 2,111; Mr. Gardner,
     2,370;  Mr.  Houghton,  1,912; Mr. Jones,  1,912;  Mrs. Lawson,  1,693; Mr.
     Lundquist, 441; Mr. Ramsey, 1,912; Mr. Sexton, 441; Mr. Solberg, 2,151; Mr.
     Watson, 4,217 and all directors and officers as a group, 977,931.
(i)  Includes the following  number of shares held in each respective  officer's
     401(k) account:  Mr. Dove, 341; Mr. Alameddine,  7; Mr. Cheatwood,  505 and
     Mr. Kellum, 517.
(j)  Includes  2,000  shares  held  in  Mr.  Cheatwood's  investment  retirement
     account.
(k)  Includes 13,753 shares held in trust that are shares  beneficially owned by
     Dr. Baroffio.
(l)  Includes  8,031  shares  held by two  trusts  of which  Mr.  Houghton  is a
     co-trustee  and over which he has shared  voting and  investment  power and
     2,000 shares held in Mr. Houghton's investment retirement account.
(m)  Mrs. Lawson's  beneficial shares include 1,700 shares held in Mrs. Lawson's
     investment  retirement  accounts.  Mr. Sexton's  beneficial  shares include
     7,477 shares held in Mr. Sexton's investment retirement accounts.
(n)  Includes  1,202,209  shares of common stock  subject to stock  options that
     were exercisable at or within 60 days after March 15, 2005.

             SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

     The  executive  officers and  directors of the Company are required to file
reports  with the SEC,  disclosing  the amount  and  nature of their  beneficial
ownership in common stock, as well as changes in that ownership.

     Based solely on its review of reports and written  representations that the
Company has received,  the Company is aware that Larry N. Paulsen, the Company's
Vice  President,  Administration  and Risk  Management,  and David McManus,  the
Company's Vice President of  International  Operations,  did not timely file one
report  each  on  Form  4  covering  transactions  effected  during  2004,  Todd
Dillabough, the President of the Company's Canadian subsidiaries, did not timely
file one Form 3 during 2004, and Mark S. Sexton, a director,  did not accurately
report all of the Company's securities in which he is deemed to have a pecuniary
interest  on his Form 3 filed in  2004.  The  Company  believes  that all  other
required reports were timely filed during 2004.


                                       29






                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     On May 3, 2004,  the Company and  Evergreen  entered into an Agreement  and
Plan of Merger pursuant to which the Company acquired Evergreen on September 28,
2004.  Before the  completion  of the  merger,  Mark S.  Sexton was  Evergreen's
Chairman  of the  Board,  President,  and  Chief  Executive  Officer;  Andrew D.
Lundquist was an independent director of Evergreen;  and Scott D. Sheffield (the
Company's Chairman of the Board, Chief Executive Officer and then President) was
an independent director of Evergreen.  As a result of the merger, Messrs. Sexton
and Lundquist were appointed to the Company's  Board of Directors as Class I and
Class III directors, respectively. On May 3, 2004, the Company also entered into
a Non-Competition  Agreement with Mr. Sexton and Consulting and  Non-Competition
Agreements with two other officers of Evergreen.  The aggregate number of shares
of Company  common  stock  issued in the merger to  Evergreen  stockholders  was
approximately 25.4 million,  and the aggregate amount of cash paid in the merger
to Evergreen  stockholders  was  approximately  $863.2  million,  including  the
consideration for Evergreen's Kansas properties.

     Mr.  Sheffield  owned 6,400 shares of Evergreen  common  stock,  options to
purchase 4,800 shares of Evergreen common stock that were  exercisable,  options
to  purchase  19,200  shares  of  Evergreen  common  stock  that  were not fully
exercisable,  and a restricted  stock award for 9,600 shares of Evergreen common
stock. As a result of the merger, Mr. Sheffield received 9,307 shares of Company
common  stock,  options to acquire  27,924 shares of Company  common stock,  and
$319,713 in cash with respect to his equity interests in Evergreen.

     Mr.  Lundquist  owned 3,402 shares of Evergreen  common  stock,  options to
purchase 4,800 shares of Evergreen common stock that were  exercisable,  options
to  purchase  19,200  shares  of  Evergreen  common  stock  that  were not fully
exercisable,  and a restricted  stock award for 9,600 shares of Evergreen common
stock. As a result of the merger, Mr. Lundquist received 7,563 shares of Company
common  stock,  options to acquire  27,924 shares of Company  common stock,  and
$259,810 in cash with respect to his equity interests in Evergreen.

     Mr. Sexton owned  243,234  shares of Evergreen  common  stock;  options for
507,578 shares of Evergreen  common stock,  including  options for 75,000 shares
that vested in the merger  prior to the time they would  otherwise  have vested;
restricted  stock awards for 75,000 shares of Evergreen common stock that vested
prior to the time they would  otherwise have vested.  As a result of the merger,
Mr. Sexton received  185,130 shares of Company common stock,  options to acquire
590,568 shares of Company  common stock,  and $6,358,368 in cash with respect to
his equity interests in Evergreen. In addition,  under the terms of Mr. Sexton's
change in control agreement with Evergreen,  the Company is providing Mr. Sexton
continuation  of his  health  care and other  insurance  benefits  for two years
following the merger.

     Before  completion  of the  merger  in  September  2004,  a  dispute  arose
concerning  the  amounts  that  would be  payable  to the  Evergreen  executives
pursuant to their change in control  agreements  upon  completion of the merger.
The  Company   believed  the   aggregate   amount  that  would  be  payable  was
approximately  $7.6 million  based on the Company's  analysis of the  historical
cash  salaries  and cash  bonuses  and  estimated  tax  gross-ups  for the three
Evergreen executives. The executives asserted that the change in control payment
calculation must also take into account the executives'  restricted stock awards
granted  when their  annual  compensation  was set and that the  aggregate  cash
payable to them would be up to $30.0 million,  depending on the value attributed
to Evergreen common stock for purposes of the calculation. The Company disagreed
with the methodology  and stock  valuations the executives used to calculate the
cash amount that would be payable to them.  The Company and the three  Evergreen
executives had a number of  discussions  to attempt to resolve the  disagreement
before the  completion  of the merger on September  28, 2004,  but their efforts
were unsuccessful.

     During  October 2004,  the Company and the three  executives  settled their
disputes.  Associated  therewith,  the Company paid to the three executives $6.4
million of  aggregate  non-competition  payments  and $7.6  million of change in
control payments determined in accordance with the change in control agreements,
including a $2.6 million change in control payment to Mr. Sexton. On October 29,
2004, the Company entered into a new Non-Competition  Agreement with Mr. Sexton.
Mr. Sexton's  new Non-Competition Agreement has a two-year term and replaced the

                                       30





Non-Competition  Agreement dated May 3, 2004 between the Company and Mr. Sexton.
The Non-Competition Agreement provides that Mr. Sexton will not:

       (i)   engage in or be involved with a competing activity with the Company
             in the Raton Basin of Colorado or New Mexico,

       (ii)  solicit with respect to hiring any employee of the Company, and

       (iii) acquire any  oil and  gas interests within  20 miles of any oil and
             gas interests owned by Evergreen in three areas generally described
             as the  Uinta and  Piceance  Basin  in Utah  and  Colorado  and the
             Western Sedimentary Basin  in Canada without  providing the Company
             30 days prior written  notice and offering the Company the right to
             acquire up to 50 percent of the oil and gas interests at cost.

Mr.  Sexton was paid $3.1  million as  compensation  for  entering  into the new
Non-Competition Agreement.

     Tom  Sheffield,  the  brother  of  Scott D.  Sheffield,  is  employed  at a
subsidiary  of the  Company  as the Raton  Asset  Team  Manager.  For 2004,  Tom
Sheffield  was paid  $121,658 in base  salary and $28,406 in bonus and  received
restricted  stock  awards  for 620 shares of  Company  common  stock with a fair
market value on the date of grant of $19,127.  Scott D. Sheffield  disclaims any
interest in Tom Sheffield's compensation.

     Kevin  Spratlen,  the husband of Susan  Spratlen (an officer of the Company
responsible  for corporate  communications),  is employed at a subsidiary of the
Company as Senior Support Analyst.  For 2004, Kevin Spratlen was paid $55,800 in
base salary and $8,999 in bonus and  received  restricted  stock  awards for 135
shares of Company  common stock with a fair market value on the date of grant of
$4,165.

     Mr. Jones is of counsel to the firm of Thompson & Knight,  L.L.P. since his
retirement  from the firm in January 1998.  Thompson & Knight,  L.L.P.  provides
periodic legal services to the Company.  Thompson & Knight,  L.L.P.  customarily
gives the "of counsel"  title to retired  partners of the firm. Mr. Jones has no
role in, and receives no pay from,  Thompson & Knight,  L.L.P.  except  payments
under a retirement savings plan.


                              STOCKHOLDER PROPOSALS

     Any  stockholder of the Company who desires to submit a proposal for action
at the 2006 annual meeting of  stockholders  and wishes to have such proposal (a
"Rule 14a-8 Proposal")  included in the Company's proxy  materials,  must submit
such Rule 14a-8  Proposal to the Company at its principal  executive  offices no
later than  December 13,  2005,  unless the Company  notifies  the  stockholders
otherwise.  Only those  Rule 14a-8  Proposals  that are timely  received  by the
Company  and  proper for  stockholder  action  (and  otherwise  proper)  will be
included in the Company's proxy materials.

     Any  stockholder of the Company who desires to submit a proposal for action
at the 2006  annual  meeting  of  stockholders,  but does not wish to have  such
proposal  (a  "Non-Rule  14a-8  Proposal")   included  in  the  Company's  proxy
materials,  must  submit  such  Non-Rule  14a-8  Proposal  to the Company at its
principal  executive  offices so that it is received no later than  February 19,
2006,  unless the Company  notifies the  stockholders  otherwise.  If a Non-Rule
14a-8  Proposal is not  received by the Company on or before  February 19, 2006,
then the Company  intends to exercise its  discretionary  voting  authority with
respect to such Non- Rule 14a-8 Proposal.

     "Discretionary  voting  authority"  is the  ability  to vote  proxies  that
stockholders  have  executed  and  returned  to  the  Company,  on  matters  not
specifically   reflected  in  the  Company's  proxy  materials,   and  on  which
stockholders have not had an opportunity to vote by proxy.

     It is  the  responsibility  of  the  Nominating  and  Corporate  Governance
Committee  to  identify,  evaluate  and  recommend  to the Board  the  Directors
nominees  for  election at the annual  meeting of  stockholders,  as well as for
filling  vacancies or additions on the Board of Directors that may occur between
annual meetings.  The Nominating and Corporate Governance Committee endeavors to
recommend only director  candidates who possess the highest  personal values and
integrity; who have experience and have exhibited achievements in one or more of

                                       31





the key professional,  business, financial, legal and other challenges that face
a large global U.S. independent oil and gas company; who exhibit sound judgment,
intelligence, personal character, and the ability to make independent analytical
inquiries;  who  demonstrate a willingness  to devote  adequate time to Board of
Director  duties;  and  who are  likely  to be able to  serve  on the  Board  of
Directors for a sustained period.  Consideration will also be given to the Board
of Directors'  overall  balance of diversity of  perspectives,  backgrounds  and
experiences.

     The Nominating and Corporate Governance Committee will consider any nominee
recommended by  stockholders  for election at the annual meeting of stockholders
to be held in 2006 if that  nomination  is submitted in writing,  not later than
December  13,  2005,  to the  Corporate  Secretary,  Pioneer  Natural  Resources
Company,  5205 North O'Connor  Boulevard,  Suite 900, Irving,  Texas 75039. With
respect to each such nominee, the following  information must be provided to the
Company with the written nomination:

     a)  the nominee's name, address and other personal information;

     b)  the number of  shares of each class  and series of stock of the Company
         held by such nominee;

     c)  the nominating  stockholder's name,  residential address  and telephone
         number, business address and telephone number; and

     d)  all other  information required  to be disclosed pursuant to Regulation
         14A of the Securities and Exchange Act of 1934.

     Each submission must also include a statement of the  qualifications of the
nominee,  a notarized consent signed by the nominee  evidencing a willingness to
serve as a  director,  if  elected,  and a  commitment  by the  nominee  to meet
personally with members of the Nominating and Corporate Governance Committee and
the Board of Directors.

     Stockholders   desiring  to  propose   action  at  the  annual  meeting  of
stockholders  must also comply  with  Article  Nine of the Amended and  Restated
Certificate of Incorporation  of the Company.  Under Article Nine, a stockholder
must submit to the Company,  no later than 60 days before the annual  meeting or
ten days  after  the  first  public  notice  of the  annual  meeting  is sent to
stockholders, a written notice setting forth (i) the nature of the proposal with
particularity,   including   the  written  text  of  the   proposal,   (ii)  the
stockholder's name, address and other personal  information,  (iii) any interest
of the  stockholder  in the  proposed  business,  (iv) the  name of any  persons
nominated to be elected or reelected  as a director by the  stockholder  and (v)
with  respect  to each such  nominee,  the  nominee's  name,  address  and other
personal information,  the number of shares of each class and series of stock of
the Company  held by such  nominee,  all  information  required to be  disclosed
pursuant to Regulation  14A of the  Securities  and Exchange Act of 1934,  and a
notarized letter containing such nominee's acceptance of the nomination, stating
his or her intention to serve as a director,  if elected,  and  consenting to be
named as a nominee in any proxy statement relating to such election.  The person
presiding at the annual  meeting  will  determine  whether  business is properly
brought before the meeting and will not permit the consideration of any business
not properly brought before the meeting.

     Written  requests  for  inclusion  of any  stockholder  proposal  should be
addressed to Corporate Secretary,  Pioneer Natural Resources Company, 5205 North
O'Connor  Boulevard,  Suite 900, Irving,  Texas 75039. The Company suggests that
any such proposal be sent by certified mail, return receipt requested.


                                       32





                             SOLICITATION OF PROXIES

     Solicitation of Proxies may be made by mail, personal interview,  telephone
or telegraph by officers,  directors and regular  employees of the Company.  The
Company may also request  banking  institutions,  brokerage  firms,  custodians,
nominees and  fiduciaries  to forward  solicitation  material to the  beneficial
owners of the common stock that those  companies or persons hold of record,  and
the Company will reimburse the forwarding expenses. In addition, the Company has
retained D.F. King & Co., Inc. to assist in solicitation for a fee estimated not
to exceed $7,500. The Company will bear all costs of solicitation.

                                STOCKHOLDER LIST

     In accordance with the Delaware  General  Corporation Law, the Company will
maintain at its corporate  offices in Irving,  Texas, a list of the stockholders
entitled to vote at the Annual Meeting. The list will be open to the examination
of any stockholder,  for purposes germane to the Annual Meeting, during ordinary
business hours for ten days before the Annual Meeting.

                       ANNUAL REPORT AND OTHER INFORMATION

       The Company's Annual Report to Stockholders for the year ended December
31, 2004, is being mailed to stockholders concurrently with this Proxy Statement
and does not form part of the proxy solicitation material.

     A copy of the  Company's  Annual  Report  on Form  10-K for the year  ended
December  31,  2004,  as  amended  and filed  with the SEC,  will be sent to any
stockholder without charge upon written request addressed to Investor Relations,
Pioneer Natural Resources  Company,  5205 North O'Connor  Boulevard,  Suite 900,
Irving, Texas 75039. A copy of this Proxy Statement or our Annual Report on Form
10-K will also be sent upon  written  or oral  request to any  stockholder  of a
shared  address to which a single copy of this Proxy  Statement or Annual Report
on  Form  10-K  was  delivered.  Requests  may be made by  writing  to  Investor
Relations,  Pioneer Natural Resources  Company,  5205 North O'Connor  Boulevard,
Suite 900, Irving, Texas 75039 or by calling 972-969-3583.  The Annual Report on
Form 10-K is also  available  at the SEC's  website  in its  EDGAR  database  at
www.sec.gov.

     Stockholders  may  request  copies of the  Company's  Corporate  Governance
Principles  and any charter for a committee of the Board of Directors by writing
to Investor Relations at the address set forth in the previous paragraph.




                                       33





                                 INTERNET VOTING

     For  shares  of  stock  that  are  registered  in your  name,  you have the
opportunity  to vote by the Internet  using a program  provided by the Company's
transfer  agent,  Continental  Stock  Transfer & Trust Company  ("Continental").
Votes  submitted  electronically  by the  Internet  under this  program  must be
received by 5:00 p.m.,  Eastern  Time, on Tuesday,  May 10, 2005.  The giving of
such a proxy will not affect  your right to vote in person  should you decide to
attend the Annual  Meeting.  The  Company has been  advised by counsel  that the
Internet voting procedures that have been made available through Continental are
consistent with the requirements of applicable law.

     To vote by the  Internet,  please  have  your  proxy  card in hand when you
access Continental's website at www.continentalstock.com. Under "ContinentaLink"
on the  right  side,  select  "Proxy  Voting  Log In." You will be  prompted  to
complete an electronic ballot. Follow the prompts to vote your shares.

     The Internet  voting  procedures are designed to  authenticate  stockholder
identities,  to allow  stockholders  to give their  voting  instructions  and to
confirm  that   stockholders'   instructions   have  been   recorded   properly.
Stockholders  voting through the Internet  should  remember that the stockholder
must bear costs  associated with electronic  access,  such as usage charges from
Internet access providers and telephone companies.

******

     IT IS  IMPORTANT  THAT  PROXIES BE  RETURNED  PROMPTLY.  WHETHER OR NOT YOU
EXPECT TO ATTEND  THE  MEETING  IN  PERSON,  YOU ARE URGED TO VOTE  THROUGH  THE
INTERNET OR TO COMPLETE, SIGN AND RETURN THE PROXY IN THE ENCLOSED POSTAGE-PAID,
ADDRESSED ENVELOPE.

                                            By Order of the Board of Directors,


                                             /s/ Mark S. Berg
                                            ----------------------------------
                                            Mark S. Berg
                                            Secretary

Irving, Texas
April 5, 2005



                                       34





                        PIONEER NATURAL RESOURCES COMPANY

             PROXY SOLICITED FOR THE ANNUAL MEETING OF STOCKHOLDERS
                             TO BE HELD MAY 11, 2005

                         VOTE BY INTERNET * PHONE * MAIL


TO VOTE BY INTERNET
-------------------
www.continentalstock.com
Have  this  proxy  card  in  hand  when  you  access  the  above   website.   At
"ContinentaLink"  on the right side,  select  "Proxy  Voting Log In." Follow the
instructions on the screen to vote your shares.

TO VOTE BY PHONE
----------------
Call toll-free (in the U.S.)  1-866-894-0537.
Have this proxy card in hand when you call and follow the instructions.

Your  internet  or  telephone  vote works in the same  manner as if you  marked,
signed and returned your proxy card by mail.  Internet and telephone  votes must
be received by 5:00 p.m., Eastern Time, on May 10, 2005.

                  If you vote via the internet or by telephone,
                      please do not return the card below.

TO VOTE BY MAIL
---------------
Mark,  sign  and  date  the  proxy  card  below,  detach  it and  return  in the
postage-paid envelope provided.

                 FOLD AND DETACH HERE AND READ THE REVERSE SIDE
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


                                  PROXY BY MAIL

                                          Please mark your votes like this [ X ]

THIS  PROXY,  WHEN  PROPERLY  EXECUTED,  WILL BE  VOTED  AS  DIRECTED,  OR IF NO
DIRECTION  IS  INDICATED,  WILL BE VOTED  "FOR"  THE  PROPOSALS.  THIS  PROXY IS
SOLICITED BY THE BOARD OF DIRECTORS. TO BE VALID, THIS PROXY MUST BE SIGNED.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" ITEMS 1 AND 2.

ITEM 1 - ELECTION OF DIRECTORS                [ ] FOR ALL   [ ] WITHHELD FOR ALL
Nominees:
01   James R. Baroffio     03   Scott D. Sheffield
02   Edison C. Buchanan    04   Jim A. Watson

WITHHELD FOR: (List below each nominee for whom you do not wish to vote.)

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

ITEM 2 - RATIFICATION OF SELECTION OF INDEPENDENT ACCOUNTANTS

               [ ]   FOR           [ ]  AGAINST           [ ]  ABSTAIN

IN THEIR  DISCRETION,  THE PROXIES MAY VOTE ON ANY OTHER MATTERS AS MAY PROPERLY
COME BEFORE THE MEETING OR ANY ADJOURNMENT(S) THEREOF.

IF YOU WISH TO VOTE BY INTERNET  OR BY  TELEPHONE  PLEASE READ THE  INSTRUCTIONS
ABOVE.

Signature                       Signature                        Date
          -------------------              -------------------         --------

Please sign exactly as name appears hereon.  Joint owners should each sign. When
signing as attorney, executor,  administrator,  trustee or guardian, please give
full title as such. If a corporation or  partnership,  sign in full corporate or
partnership name by duly authorized officer and give title.








                Access to Pioneer shareholder account information
          and other shareholder services are available on the Internet!

                  Visit Continental Stock Transfer's website at
                            www.continentalstock.com
                    for their Internet Shareholder Service -
                                 ContinentaLink

       Through this service, shareholders can change addresses, receive
       electronic forms,  view account transaction history and dividend
       history.

       To access  this  service,  visit  the  website  listed  above. At
       "ContinentaLink"  on  the  right  side of  the home page,  select
       "Shareholder  Log In." From there, you can either  "View a Sample
       Account"  or you can  sign-up  (choose  "First Time Visitor" then
       "New Member Sign-Up"). Guidance is provided on the website.




                 FOLD AND DETACH HERE AND READ THE REVERSE SIDE
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

PROXY

         THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF

                        PIONEER NATURAL RESOURCES COMPANY

The undersigned hereby appoints Scott D. Sheffield and Mark S. Berg, and each of
them,  as attorneys in fact and proxies for the  undersigned  with full power of
substitution and revocation as to each of them, to represent the undersigned and
to vote all the shares of common stock of Pioneer Natural Resources Company that
the  undersigned is entitled to vote at the Annual Meeting of Stockholders to be
held on May 11, 2005, and any  adjournment  or  postponement  thereof,  upon the
matters set forth on the reverse side.

       (Continued, and to be marked, dated and signed, on the other side)









                        PIONEER NATURAL RESOURCES COMPANY

             PROXY SOLICITED FOR THE ANNUAL MEETING OF STOCKHOLDERS
                             TO BE HELD MAY 11, 2005

                         VOTE BY INTERNET * PHONE * MAIL


TO VOTE BY INTERNET
-------------------
www.continentalstock.com
Have  this  proxy  card  in  hand  when  you  access  the  above   website.   At
"ContinentaLink"  on the right side,  select  "Proxy  Voting Log In." Follow the
instructions on the screen to vote your shares.

TO VOTE BY PHONE
----------------
Call toll-free (in the U.S.)  1-866-894-0537.
Have this proxy card in hand when you call and follow the instructions.

Your  internet  or  telephone  vote works in the same  manner as if you  marked,
signed and returned your proxy card by mail.

                  If you vote via the internet or by telephone,
                      please do not return the card below.

TO VOTE BY MAIL
---------------
Mark,  sign  and  date  the  proxy  card  below,  detach  it and  return  in the
postage-paid envelope provided.

                 FOLD AND DETACH HERE AND READ THE REVERSE SIDE
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                                  PROXY BY MAIL

                                         Please mark your votes like this  [ X ]

THIS  PROXY,  WHEN  PROPERLY  EXECUTED,  WILL BE  VOTED  AS  DIRECTED,  OR IF NO
DIRECTION IS INDICATED,  WILL BE VOTED IN ACCORDANCE WITH THE TERMS OF THE TRUST
AGREEMENT.  THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS. TO BE VALID, THIS
PROXY MUST BE SIGNED.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" ITEMS 1 AND 2.

ITEM 1 - ELECTION OF DIRECTORS               [ ] FOR ALL    [ ] WITHHELD FOR ALL
Nominees:
01   James R. Baroffio             03   Scott D. Sheffield
02   Edison C. Buchanan            04   Jim A. Watson

WITHHELD FOR: (List below each nominee for whom you do not wish to vote.)

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

ITEM 2 - RATIFICATION OF SELECTION OF INDEPENDENT ACCOUNTANTS

               [ ] FOR           [ ] AGAINST           [ ] ABSTAIN

IN THEIR  DISCRETION,  THE PROXIES MAY VOTE ON ANY OTHER MATTERS AS MAY PROPERLY
COME BEFORE THE MEETING OR ANY ADJOURNMENT(S) THEREOF.

IF YOU WISH TO VOTE BY INTERNET  OR BY  TELEPHONE  PLEASE READ THE  INSTRUCTIONS
ABOVE.

Signature                           Signature                      Date
           ----------------------              ------------------      ------
Please sign exactly as name appears hereon.  Joint owners should each sign. When
signing as attorney, executor,  administrator,  trustee or guardian, please give
full title as such. If a corporation or  partnership,  sign in full corporate or
partnership name by duly authorized officer and give title.












        The Annual Meeting of Stockholders will be held on May 11, 2005.
        Your voting  instruction must  be received  by 5:00 p.m. Eastern
        Time, on May 6, 2005 to allow Vanguard to vote according to your
        instruction.





                 FOLD AND DETACH HERE AND READ THE RESERVE SIDE
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

PROXY

                 PIONEER NATURAL RESOURCES USA, INC. 401(k) PLAN

TO: THE VANGUARD  FIDUCIARY  TRUST  COMPANY,  TRUSTEE FOR THE EMPLOYER  MATCHING
CONTRIBUTION  (STOCK ACCOUNT) OF THE PIONEER NATURAL  RESOURCES USA, INC. 401(k)
AND MATCHING PLAN

In connection with the proxy materials I received relating to the Annual Meeting
of Stockholders of Pioneer Natural Resources Company to be held on May 11, 2005,
I direct you to execute a proxy  with  respect to all shares of common  stock of
Pioneer  to which I have the right to give  voting  directions  under the 401(k)
plan upon the matters set forth on the reverse side. I understand  you will hold
these directions strictly confidential.

       (Continued, and to be marked, dated and signed, on the other side)