SCHEDULE 14A
                                 (RULE 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT

                            SCHEDULE 14a INFORMATION

           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-11(c) or 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)(1) 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:

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

(5) Total fee paid:

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

[  ]  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:

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

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

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

(3) Filing Party:

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

(4) Date Filed:

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

                                        1





                        PIONEER NATURAL RESOURCES COMPANY
                          5205 North O'Connor Boulevard
                                   Suite 1400
                               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 Britain Room at
the Dallas Marriott Las Colinas Hotel, 223 West Las Colinas Blvd., Irving, Texas
75039,  on Thursday,  May 15, 2003,  at 9:00 a.m.  (the "Annual  Meeting").  The
Annual Meeting is being held for the following purposes:

         1. To elect three 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  are a stockholder of
record at the close of business on March 19, 2003.

                             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
through  the   Internet  by   accessing   our   transfer   agent's   website  at
www.continentalstock.com.  You will need the control numbers that are printed on
your personalized proxy card.


                           By Order of the Board of Directors


                             /s/ Mark L. Withrow
                           ---------------------------------------------------
                           Mark L. Withrow, Secretary

Irving, Texas
April 7, 2003



                                        2





                        PIONEER NATURAL RESOURCES COMPANY
                          5205 North O'Connor Boulevard
                                   Suite 1400
                               Irving, Texas 75039


                                 PROXY STATEMENT

                       2003 ANNUAL MEETING OF STOCKHOLDERS


       The board of directors of  Pioneer Natural Resources Company  (the "Board
of Directors")  requests your Proxy for the Annual Meeting of Stockholders  that
will be held at 9:00 a.m., on Thursday, May 15, 2003, in the Britain Room at the
Dallas Marriott Las Colinas Hotel,  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.  You will need the control
numbers that are printed on your  personalized  paper proxy card.  See "Internet
Voting."

       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,  or 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 9, 2003.

                                QUORUM AND VOTING

       Voting Stock.  The Company  has one  outstanding class of securities that
entitle  holders to vote  generally at meetings of the  Company's  stockholders:
common stock, par value $.01 per share.  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 is the close of business on March 19, 2003. At the
record date, 117,610,782 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

                                        3





Annual  Meeting.   An  automated  system  that  the  Company's   transfer  agent
administers will tabulate the votes.  Brokers who hold shares in street name for
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 three 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 III directors of the Company with their terms to expire at the
annual  meeting of  stockholders  in 2006 when their  successors are elected and
qualified:

                                 Jerry P. Jones
                             Charles E. Ramsey, Jr.
                                Robert A. Solberg

       Messrs. Jones,  Ramsey and Solberg are  currently serving as directors of
the Company.  Their  biographical  information  is contained in  "Directors  and
Executive Officers."

       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 2003.  Ernst & Young LLP have audited the
Company's  financial  statements  since 1998.  The 2002 audit was  completed  on
January 24, 2003.


                                        4





       Audit  Fees.  The  aggregate  fees  billed  by  Ernst  &  Young  LLP  for
professional  services rendered for the audits of the Company's annual financial
statements and reviews of reports on Forms 10-Q for the years ended December 31,
2002 and 2001 were $448,326 and $469,078, respectively.

       Audit Related Fees.  The aggregate fees  billed by  Ernst & Young LLP for
audit  related  services  totaled  $101,091 and $115,885  during the years ended
December 31, 2002 and 2001, respectively.  Audit related services were primarily
comprised  of audits of the  Company's  benefit  plans,  reviews  of merger  and
acquisition transactions and procedures associated with the Company's registered
securities offerings.

       Tax Services Fees. The aggregate fees billed by Ernst & Young LLP for tax
services  totaled  $73,116 and $40,830  during the years ended December 31, 2002
and 2001.

       Other Fees.  During the year ended December 31, 2002, the Company and the
Audit  Committee  engaged  Ernst & Young LLP to perform  audits,  audit  related
procedures and tax services. No other professional services were provided to the
Company by Ernst & Young LLP during the year ended  December 31,  2002.  Ernst &
Young LLP  billed the  Company  $385,000  of fees for  internal  audit  services
provided during 2001.

       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 2002,  2001 and 2000 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 2002,  2001 and 2000,  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.

                        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,"  the
Board of Directors and executive officers of the Company will be:


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

                              
Scott D. Sheffield......    50      Chairman of the Board, President and Chief
                                    Executive Officer
Chris J.  Cheatwood         42      Executive Vice President - Worldwide Exploration
Timothy L. Dove.........    46      Executive Vice President and Chief Financial Officer
Dennis E. Fagerstone....    54      Executive Vice President - International Operations
Danny L. Kellum.........    48      Executive Vice President - Domestic Operations
Mark L. Withrow.........    55      Executive Vice President, General Counsel and
                                    Secretary
James R. Baroffio.......    71      Director
Edison C. Buchanan......    48      Director
R. Hartwell Gardner.....    68      Director
James L. Houghton.......    72      Director
Jerry P. Jones..........    71      Director
Linda K. Lawson.........    57      Director
Charles E. Ramsey, Jr...    66      Director
Robert A. Solberg.......    57      Director


                                  5






       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
their  successors  are elected and  qualified.  Each year,  the directors of one
class stand for re-election as their terms of office expire. Messrs. Gardner and
Houghton, and Mrs. Lawson, are designated as Class I directors,  and their terms
of  office  expire  in  2004.  Messrs.  Baroffio,  Buchanan  and  Sheffield  are
designated  as Class II  directors,  and their  terms of office  expire in 2005.
Messrs.  Jones,  Ramsey and Solberg are designated as Class III  directors,  and
their terms of office expire at the Annual Meeting.

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

       Set forth  below is biographical information  about each of the Company's
directors and executive officers 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 been the President and Chief  Executive  Officer of the Company since August
1997,  and assumed the position of Chairman of the Board in August 1999.  He was
the President and a director of Parker & Parsley  Petroleum  Company  ("Parker &
Parsley")  since May 1990 and was the Chairman of the Board and Chief  Executive
Officer of Parker & Parsley  since  October  1990.  Mr.  Sheffield  was the sole
director of Parker & Parsley from May 1990 until  October  1990.  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.

       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 of Domestic  Exploration in July
1998 and Senior Vice President  Exploration in December 2000. Before joining the
Company,  Mr.  Cheatwood  spent ten years  with Exxon  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.

       Timothy L. Dove.  Mr. Dove was elected Executive Vice President and Chief
Financial Officer in February 2000. Prior to that, Mr. Dove held the position of
Executive  Vice  President - Business  Development  since August 1997.  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.

       Dennis E. Fagerstone.  Mr. Fagerstone,  a graduate of the Colorado School
of Mines with a Bachelor of Science degree in Petroleum  Engineering,  became an
Executive Vice President of the Company in August 1997. Mr. Fagerstone served as
Executive Vice President and Chief Operating  Officer of MESA Inc. ("Mesa") from
March 1997 until August 1997. Mr. Fagerstone served as Senior Vice President and
Chief  Operating  Officer of Mesa from  October 1996 to February  1997,  as Vice
President - Exploration and Production of Mesa from May 1991 to October 1996 and
as Vice President - Operations of Mesa from June 1988 until May 1991.

       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 of 1997. Mr. Kellum joined Parker & Parsley as an operations  engineer in
1981 after a brief career with Mobil Oil Corporation.

                                        6






       Mark L. Withrow.  Mr. Withrow, a graduate of Abilene Christian University
with a Bachelor of Science degree in Accounting and Texas Tech University with a
Juris Doctorate degree,  has been the Executive Vice President,  General Counsel
and Secretary of the Company  since August 1997.  He served as Vice  President -
General  Counsel of Parker & Parsley from February 1991 until January 1995,  and
served  as Senior  Vice  President,  General  Counsel  of Parker & Parsley  from
January 1995 until August 1997. He was Parker & Parsley's  Secretary from August
1992 until August 1997.  Mr.  Withrow  joined  Parker & Parsley in January 1991.
Before joining Parker & Parsley, Mr. Withrow was the managing partner of the law
firm of Turpin, Smith, Dyer, Saxe & MacDonald in Midland, Texas.

       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  at the  University  of  Illinois.  Before
becoming a director of the Company in December 1997, Dr. Baroffio enjoyed a long
career with  Standard  Oil Company of  California,  the  predecessor  of Chevron
Corporation where he served as President, Chevron Research and Technology Center
from  1980 to 1985  and  eventually  retired  as  President  of  Chevron  Canada
Resources  in 1994.  Dr.  Baroffio was a member of the Board of Directors of the
Rocky  Mountain  Oil & Gas  Association,  and  Chairman  of  the  U.S.  National
Committee of the World Petroleum Congress.  His community  leadership  positions
included  membership on the Board of Directors of Glenbow  Museum and 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.

       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 the  Financial  Executives  Institute  of  which 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
Pembroke, 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 Bachelor of Laws 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 1, 1991, Mr. Houghton was the lead
oil and gas tax  specialist  for the  accounting  firm of Ernst &  Young,  was a
member of Ernst & Young'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.

                                        7





       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 and served the Tulsa community
in a variety of non-profit  organizations.  Mrs. Lawson became a director of the
Company in 2002, and resides in Denver, Colorado.

       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.

       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 in Louisiana. Mr. Solberg spent his entire career working for
Texaco Inc. in Houston and Midland,  Texas,  London and the Middle East, holding
the positions of Division President,  President of International Exploration and
Production,  President of Upstream Commercial Development,  and retired in March
2002 as Vice  President  of Texaco  Inc.  He became a director of the Company in
2002. Mr. Solberg recently served as a director of Greater Houston  Partnership,
Central Houston Chamber of Commerce and Houston Grand Opera.

                      MEETINGS AND COMMITTEES OF DIRECTORS

       The Board of Directors  of the Company held ten meetings during 2002.  No
director  attended  fewer than 75 percent of the total number of meetings of the
Board of  Directors.  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  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 attached to this proxy  statement as
Annex A. The members of the Audit  Committee  are Messrs.  Houghton  (Chairman),
Gardner,  Jones and  Solberg and Mrs.  Lawson.  The Audit  Committee  held seven
meetings during 2002.

       The  Compensation  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 and stock
option awards of the Company's  executive officers.  The Compensation  Committee
also administers the Company's Long-Term Incentive Plan. Additional  information
regarding  the  functions  performed  by  the  Compensation  Committee  and  its
membership  is set forth in the  "Compensation  Committee  Report  on  Executive
Compensation", included herein, and the "Compensation Committee Charter" that is
attached to this proxy  statement  as Annex B. The  members of the  Compensation
Committee are Messrs. Ramsey (Chairman), Baroffio and Buchanan. The Compensation
Committee held six meetings during 2002.

       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 and


                                        8





its membership is set forth in "Corporate Governance",  included herein, and the
"Nominating and Corporate Governance Committee Charter" that is attached to this
proxy  statement  as  Annex C.  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 shall not participate in the meeting(s) called for such nomination.  The
Nominating  and  Corporate  Governance  Committee was formed in 2003 and did not
hold any meetings during 2002.

                             MANAGEMENT COMPENSATION

Compensation of Directors

       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.
Audit committee members receive an additional $7,500 annual fee and Mr. Baroffio
in his role as  geosciences  advisor  to the  Board  of  Directors  receives  an
additional  $7,500 annual fee. The chairman of the audit committee also receives
a $5,000 annual fee and other  committee  chairmen  receive a $2,500 annual fee.
Each  non-employee  director is also  reimbursed  for travel  expenses to attend
meetings of the Board of Directors or its  committees.  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 Company's Long-Term Incentive Plan,  non-employee directors are
eligible to receive their fees in the form of non-qualified stock options, stock
appreciation rights, restricted stock, 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 year following the  Company's 2002 annual  stockholders' meeting,
the Board of Directors  were given a choice to be compensated in (a) 100 percent
cash, (b) 100 percent stock options,  (c) 100 percent restricted stock, or (d) a
combination  of 50/50 of any two,  in  payment  of the  non-employee  directors'
annual fees. Messrs. Baroffio, Jones, Ramsey and Solberg and Mrs. Lawson elected
100 percent cash compensation; Mr. Gardner elected to receive 100 percent of his
compensation in stock options;  Mr.  Buchanan  elected to receive 100 percent of
his  compensation in restricted  stock;  and Mr. Houghton  elected to receive 50
percent of his  compensation  in cash and 50 percent in  restricted  stock.  The
number of shares granted to  non-employee  directors  electing stock options was
determined by dividing the directors'  annual fees by the value of an option for
one share on May 13, 2002 (the last  closing  sale price  before the date of the
grant).  The options have a fair-market  value exercise price,  and the value of
each option was calculated using the  Black-Scholes  method based on assumptions
provided by the Company's executive compensation  consulting firm. These options
vested 25 percent each  quarter with the first  vesting date on August 14, 2002.
The number of shares granted to non-employee directors electing restricted stock
was determined by dividing the director's  fees elected to be paid by restricted
stock by the  closing  price of one share of the  Company  stock on May 13, 2002
(the last closing sale price before the date of the grant). The restricted stock
grants  vested 25 percent each quarter with the first vesting date on August 14,
2002. On May 14, 2002,  Mr.  Gardner  received a grant of 5,017 stock options to
compensate  him for his annual fees (each stock  option  granted has an exercise
price of $24.60). Mr. Buchanan received a restricted stock grant of 2,032 shares
to compensate him for 100 percent of his annual fees, and Mr. Houghton  received
a restricted stock grant of 1,270 shares to compensate him for 50 percent of his
annual fees.

       Each non-employee  director,  upon commencement  of initial  service as a
director, receives $125,000 of restricted stock. 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. The vesting of ownership and the lapse of transfer restrictions may
be  accelerated  in the event of the  death,  disability  or  retirement  of the
director or a change in control of the  Company.  Each  recipient is required to
make an election  under the  Internal  Revenue  Code to include the value of the
restricted stock in the recipient's income in the year of grant, and the Company
agrees  to  provide  a cash  award to the  non-employee  director  in an  amount


                                        9





sufficient  to pay the federal  income  taxes due with  respect to the grant and
such cash  payment.  On May 14,  2002,  Mrs.  Lawson and  Messrs.  Buchanan  and
Solberg, as newly elected non-employee directors, each received a grant of 5,081
shares of Company common stock (which number was calculated by dividing $125,000
by  $24.60,  the  closing  stock  price on May 13,  2002) and a cash  payment of
$83,500 to pay the federal income taxes on the grant and the cash payment.

       For the year  following the  Company's  2003  annual  scheduled  meeting,
directors  can again  elect to receive  their  annual  fees 100 percent in cash,
stock options or  restricted  stock or 50 percent each in any two of those three
forms of compensation.

Compensation of Executive Officers

       The  compensation  paid  to the  Company's  executive  officers generally
consists of base salaries,  annual bonuses, awards under the Long-Term Incentive
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 2002,
2001 and 2000 awarded to, earned by or paid to the following persons:

                           SUMMARY COMPENSATION TABLE


                                                                                Long-Term
                                                                               Compensation
                                                                                  Awards
                                           Annual Compensation             ----------------------
                                   -------------------------------------    Value of     Shares
        Name and                                         Other Annual      Restricted  Underlying     All Other
  Principal Position        Year    Salary    Bonus(a)   Compensation(b)    Stock(c)     Options    Compensation(d)
-----------------------     ----   --------   --------   ---------------   ----------   ---------   --------------
                                                                                   
Scott D. Sheffield          2002   $700,000   $971,250       $ 19,211      $1,766,880    150,000        $ 92,797
President and               2001   $660,000   $617,891       $ 18,279      $      -      138,000        $ 87,774
Chief Executive Officer     2000   $638,000   $626,350       $ 18,051      $      -      120,000        $ 83,422

Timothy L. Dove             2002   $315,000   $349,650       $  4,954      $  588,960     50,000        $ 51,531
Executive Vice President    2001   $300,000   $224,688       $  4,816      $      -       53,000        $ 47,577
and Chief Financial Officer 2000   $290,000   $174,000       $  4,611      $      -       46,000        $ 45,546

Dennis E. Fagerstone        2002   $315,000   $349,650       $  9,776      $  588,960     50,000        $ 51,531
Executive Vice President -  2001   $300,000   $224,688       $  9,488      $      -       53,000        $ 47,000
International Operations    2000   $290,000   $174,000       $  9,295      $      -       46,000        $ 46,558

Danny L. Kellum             2002   $315,000   $349,650       $  8,981      $  588,960     50,000        $ 51,531
Executive Vice President -  2001   $270,000   $201,563       $  8,166      $      -       53,000        $ 46,223
Domestic Operations         2000   $240,000   $144,000       $  2,923      $      -       46,000        $ 43,157

Mark L. Withrow             2002   $315,000   $349,650       $ 10,858      $  588,960     50,000        $ 52,096
Executive Vice President    2001   $300,000   $224,688       $  5,770      $      -       53,000        $ 47,000
and General Counsel         2000   $290,000   $174,000       $  5,577      $      -       46,000        $ 46,104


(a)  Represents the amount awarded under the Company's annual bonus program.

(b)  This column represents miscellaneous perquisites.

(c)  The value of the  restricted  stock  reported in this column was determined
     using the August 12, 2002 grant date closing  price of $24.54 per share for
     the Company's common stock as reported by the New York Stock Exchange.  The
     restricted  stock grant  replaced a like value of stock  options that would
     have  been  issued  over  the  next  three  years  and   includes   vesting
     restrictions  that  lapse on  August  12,  2005.  The  restricted  stock is
     entitled to receive dividends,  if any, paid on the Company's common stock.
     Aggregate  restricted Company common  stockholdings as of December 31, 2002
     and the corresponding  value based on the closing price of the common stock
     as reported on the New York Stock  Exchange on December  31, 2002 are:  Mr.
     Sheffield, 72,000 shares, $1,818,000;  Messrs. Dove, Fagerstone, Kellum and
     Withrow, 24,000 shares each, $606,000 each.

                                       10





(d)  For 2002 this column  includes (i)  contributions  to qualified  retirement
     plans for Mr.  Sheffield  of  $19,457,  and for Messrs.  Dove,  Fagerstone,
     Kellum and Withrow of $20,031  each;  (ii)  contributions  to the Company's
     non-qualified  deferred  compensation  retirement plan for Mr. Sheffield of
     $70,000 and Messrs. Dove,  Fagerstone,  Kellum and Withrow of $31,500 each;
     (iii) a $4,042 premium with respect to a term life insurance policy for the
     benefit of Mr. Sheffield;  and (iv) reimbursement for financial  counseling
     services   for   Messrs.   Sheffield   and  Withrow  of  $3,340  and  $565,
     respectively.




       Long-Term Incentive Plan.  The  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, and performance units
payable in stock or cash.  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 4,306,586 shares available for additional awards at December 31, 2002.

       No performance units or stock appreciation rights have been awarded under
the Plan.

       The following table sets forth information about stock option grants made
during 2002 to the named executive officers.

           OPTION GRANTS IN LAST FISCAL YEAR ENDING DECEMBER 31, 2002


                                        Individual Grants
                      ---------------------------------------------------
                         Number of         % of Total
                         Securities      Options Granted    Exercise or
                         Underlying       to Employees       Base Price       Expiration      Grant Date
       Name           Options Granted    In Fiscal Year     Per Share (c)         Date        Value (d)
       ----           ---------------    ---------------    -------------    -------------    ----------

                                                                               
Scott Sheffield......    90,000 (a)            5.48            $ 18.30       2/19/08-09-10    $ 763,200
                         60,000 (b)            3.65            $ 24.72       8/12/08-09-10    $ 571,800
Timothy Dove.........    30,000 (a)            1.83            $ 18.30       2/19/08-09-10    $ 254,400
                         20,000 (b)            1.22            $ 24.72       8/12/08-09-10    $ 190,600
Dennis Fagerstone....    30,000 (a)            1.83            $ 18.30       2/19/08-09-10    $ 254,400
                         20,000 (b)            1.22            $ 24.72       8/12/08-09-10    $ 190,600
Danny Kellum.........    30,000 (a)            1.83            $ 18.30       2/19/08-09-10    $ 254,400
                         20,000 (b)            1.22            $ 24.72       8/12/08-09-10    $ 190,600
Mark Withrow.........    30,000 (a)            1.83            $ 18.30       2/19/08-09-10    $ 254,400
                         20,000 (b)            1.22            $ 24.72       8/12/08-09-10    $ 190,600


(a)  These  options  were  granted on  February  19,  2002,  vest at the rate of
     one-third each year, commencing on the first anniversary of the grant date,
     and have terms of five years from the dates of  vesting.  The  Compensation
     Committee retains  discretion,  subject to Plan limits, to modify the terms
     of the  options.  In the event of a change in  control  of the  Company  as
     defined in the Plan, the options will  immediately  become fully vested and
     exercisable in full.

(b)  These  options  were  granted  on  August  12,  2002,  vest at the  rate of
     one-third each year commencing on the first  anniversary of the grant date,
     and have terms of five years from the dates of  vesting.  The  Compensation
     Committee retains  discretion,  subject to Plan limits, to modify the terms
     of the  options.  In the event of a change in  control  of the  Company  as
     defined in the Plan, the options will  immediately  become fully vested and
     exercisable in full.

(c)  The exercise price per share is equal to the closing price of the Company's
     common  stock  on the New York  Stock  Exchange  composite  tape on the day
     before the date of grant.

(d)  The  estimated  grant date value of options  described in footnotes (a) and
     (b) were determined using the Black-Scholes model. The material assumptions
     and adjustments  incorporated in the Black-Scholes  model in estimating the
     value of the options included the following:

       o     Annual  interest rates  of 2.76  percent for  footnote (a) and 2.92
             percent for  footnote  (b),  which represent the  interest rates on
             U.S. Treasury  securities with maturity  dates corresponding to the
             expected option term.


                                       11





       o     Volatility of  50 percent  for  footnote  (a) and  39  percent  for
             footnote (b) and  calculated using  the lesser  of (1)  daily stock
             prices  for the 120-day  period prior  to the  grant date or (2) 50
             percent.

     No other adjustments were made to the model for non-transferability or risk
     of forfeiture. The ultimate values of the options will depend on the future
     market price of the Company's  common stock,  which cannot be forecast with
     reasonable  accuracy.  The actual  value,  if any, an optionee will realize
     upon exercise of an option will depend on the excess of the market value of
     the Company's  common stock over the exercise  price on the date the option
     is exercised.



       The  following  table  sets  forth, for  each  named  executive  officer,
information concerning the exercise of stock options during 2002,  and the value
of unexercised stock options as of December 31, 2002.

                 AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                        AND FISCAL YEAR END OPTION VALUES



                                                    Number of Securities          Value of Unexercised
                         Number of                 Underlying Unexercised             In-the-Money
                           Shares                Options at Fiscal Year End    Options at Fiscal Year End (a)
                        Acquired on     Value    ---------------------------   ----------------------------
                          Exercise    Realized   Exercisable   Unexercisable   Exercisable    Unexercisable
                        -----------   --------   -----------   -------------   -----------    -------------
                                                                              
Scott Sheffield.......       -        $    -       213,500        262,000       $1,707,204      $1,603,270
Timothy Dove..........    11,667      $146,633     116,500        100,665       $  693,886      $  697,683
Dennis Fagerstone.....       -        $    -       208,689        100,665       $  788,518      $  697,683
Danny Kellum..........    52,334      $767,501      52,667        100,665       $  239,450      $  697,683
Mark Withrow..........    15,835      $160,531     124,333        100,665       $  870,091      $  697,683


(a)  Amounts were calculated by multiplying the number of unexercised options by
     $25.25,  which  was the  closing  price of the  Company's  common  stock on
     December 31, 2002, and subtracting the aggregate  exercise price, which was
     determined  by  multiplying  the  unexercised  option  by their  respective
     exercise prices and summing the result.




       Retirement  Plan.   The  Company  does  not  provide  a  defined  benefit
retirement  plan  or  a  restoration  plan.  Hewitt  Associates,  the  Company's
compensation  consultant,   advised  the  Company  that  it  was  not  providing
competitive retirement benefits for its officers by offering only a 401(k) plan.
To maintain a competitive  position,  the Company also provides a  non-qualified
deferred  compensation  retirement  plan  for  officers  of  the  Company.  Each
participant  is allowed to  contribute  up to 25  percent  of base  salary.  The
Company  provides a matching  contribution  of 100 percent of the  participant's
contribution  limited to the first 10 percent of the officer's base salary.  The
Company's matching contribution vests immediately.

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

       Either the Company or the  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 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 officer's  responsibilities have been significantly
reduced.  If within  one year  after a change in  control  of the  Company,  the
Company  terminates  the officer  without  cause,  or if the officer  terminates
employment for good reason,  the Company must pay the officer an amount equal to
2.99 times the sum of the  officer's  base salary plus target bonus for the year
and continue health  insurance for the officer's  family for three years. If the
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 officer is required to move,  then the Company must pay
the  officer  one year's  base  salary and  continue  health  insurance  for the
officer's family for one year. Officers are also entitled to additional payments
for certain tax  liabilities  that may apply to severance  payments  following a
change in control.


                                       12





        Indemnification Agreements. The Company has entered into indemnification
agreements  with  each  of its  directors  and  officers,  including  the  named
executive  officers.  Those  agreements  require  the Company to  indemnify  the
directors and 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 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 officer so requests,
the Company will create a trust for the benefit of the  indemnified  director or
officer in an amount  sufficient to satisfy payment of all liabilities and suits
against which the Company has indemnified the director or officer.

                    EQUITY COMPENSATION AND PLAN INFORMATION

       The following  table summarizes  information about  the  Company's equity
compensation plans as of December 31, 2002:


                                                                                                   (c)
                                                                                           Number of securities
                                                   (a)                                     remaining available
                                                 Number of                                 for future issuance
                                              securities to be            (b)                  under equity
                                                issued upon         Weighted average        compensation plans
                                                exercise of        exercise price of      (excluding securities
                                            outstanding options*   outstanding options   reflected in column (a))**
                                            --------------------   -------------------   --------------------------
                                                                                
Equity compensation plans approved by
  security holders:
       Pioneer Natural Resources Company:
           Long-Term Incentive Plan              6,779,621                $ 19.11               4,306,586
           Employee Stock Purchase Plan                -                  $   -                   622,199
       Predecessor plans                           488,671                $ 26.44                     -
                                                 ---------                                     ----------
           Total                                 7,268,292                                      4,928,785
                                                 =========                                     ==========


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

*    There are no  outstanding  warrants  or  equity  rights  awarded  under the
     Company's equity compensation plans.
**   The  Company's  Long-Term  Incentive  Plan  provides  for the issuance of a
     maximum  number of shares of common  stock equal to 10 percent of the total
     number of shares of common  stock  equivalents  outstanding  less the total
     number of shares of common stock  subject to  outstanding  awards under any
     stock-based  plan for the directors,  officers or employees of the Company.
     The number of remaining  securities available for future issuance under the
     Company's Employee Stock Purchase Plan is based on the original  authorized
     issuance of 750,000  shares less 127,801  cumulative  shares issued through
     December 31, 2002. See Note G of Notes to Consolidated Financial Statements
     included in "Item 8. Financial  Statements and  Supplementary  Data" in the
     Company's  Annual Report on Form 10-K for the year ended  December 31, 2002
     for additional information about the Company's equity compensation plans.




      The Company has no equity  compensation plans  that have not been approved
by security holders.

           COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

      During fiscal  year 2002,  no member  of the  Compensation  Committee also
served as an executive  officer of the Company.  During fiscal year 2002,  there
were no Compensation Committee interlocks with other companies.


                                       13





             COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

      The Compensation 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  compensation  program so that it  attracts  and  retains a
capable and highly motivated senior  management team and aligns the compensation
of the  Company's  executives  with the  Company's  strategic  business  plan to
increase  stockholder  value.  During 2002 the  committee  retained an executive
compensation  consulting  firm ("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,  structure
the annual bonus and long-term  incentive awards to be a significant  portion of
an  executive's  total  compensation  and result in total  compensation  that is
reflective  of Company  performance.  A  combination  of stock option awards and
restricted  stock will be  emphasized as part of each  executive's  compensation
package to align stockholder and executive interests.  The committee has adopted
a policy of not repricing  stock options and  incorporated  that policy into the
Company's  long-term  incentive 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 award levels that are above median

     o    Significant  stock  ownership  by  directors  and  the Chief Executive
          Officer.

     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 three times each
          director's annual base retainer fee

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

      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.  Mr.  Sheffield and all directors are in compliance with
the ownership guidelines.

      The  Omnibus   Budget  Reconciliation  Act  of  1993   ("OBRA93")   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"
in the  legislation.  Non-deductibility  could result in additional tax costs to
the Company.  While the committee cannot assess with certainty how the Company's
compensation  program  will  ultimately  be  affected by OBRA93,  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.

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 Company's  Long-Term Incentive
Plan,  contributions to the Company's 401(k)  retirement plan,  contributions to
the  Company's   deferred   compensation   retirement  plan,  and  miscellaneous


                                       14





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 of similar size
and business to the Company.  The  committee  has targeted  base  salaries at or
slightly  above the median  level for  companies of similar size and business 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  its   consultant   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.  Oil
Companies,  Secondary  Index (the "DJ  Secondary  Oil 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 executives, including Mr. Sheffield, using the same methodology.

      For 2003,  Mr. Sheffield's  annual base salary  was not increased and will
remain  at  the  2002  level  of  $700,000.   Hewitt  Associates  indicated  Mr.
Sheffield's annual base salary is at or slightly above the 50th percentile.  The
base salaries of the other named executive  officers were also not increased for
2003,  and Hewitt  Associates  advised their 2003 base salaries are, as a group,
slightly above the median.

      Annual Bonuses.  Each year the  committee establishes  a target  bonus for
each executive  based on the target bonus median levels of executives in similar
positions at peer group companies.  To maintain  internal  equity,  the level of
responsibility, scope and complexity of the executive's position are considered.
The range of awards for the annual  incentive bonus plan can range from 0 to 200
percent of target.  The target bonus levels for Mr.  Sheffield and the executive
officers did not change from the 2002 target bonus levels and were identified by
Hewitt  Associates as being  slightly  above the median level.  In awarding 2002
bonuses,  the Company reviewed the following  criteria that are important to the
success of the Company's business plan.

                        o    Operating cost per BOE
                        o    Debt/Book capitalization
                        o    Reserve replacement
                        o    Growth of share value
                        o    Finding and development cost per BOE
                        o    Production growth
                        o    General and administrative costs
                        o    Net asset value

       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,  specific  targets  or  predetermined
weighting of the above  financial  and  operational  performance  criteria.  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 through the year and
specifically  evaluates Mr.  Sheffield's  performance  relative to the Company's
performance in achieving the Company's goals.

       For 2002,  the committee awarded  Mr. Sheffield and the  other executives
cash bonuses above the target bonus levels.  Specific Company  performance which
resulted in bonus payouts above target for 2002 included:

                o    Base operating costs of $2.86 per BOE
                o    Maintained leverage position
                o    Reserve replacement of 258 percent
                o    Finding and development costs of $6.30 per BOE
                o    General and administrative cost of $1.17 per BOE
                o    2002 stock price increase of 31 percent

                                       15





       Regarding  stock  performance,   for  the  third  consecutive  year,  the
Company's annual stock price performance  compared to other peer group companies
achieved top quartile  ranking.  Also, the Company's three year cumulative total
return based on stock price  performance has exceeded both the Standard & Poor's
500 Index (the "S&P 500") and the DJ Secondary Oil Index per the graph below. In
addition,  the Company's  stock price hit a four year high of $27.50 in October,
2002.

               COMPARISON OF THREE YEAR CUMULATIVE TOTAL RETURN *
    AMONG PIONEER NATURAL RESOURCES COMPANY, THE STANDARD & POOR'S 500 INDEX
              AND THE DOW JONES U.S. OIL COMPANIES, SECONDARY INDEX



                                   Pioneer          DJ
                                   Natural       Secondary
            Measurement           Resources         Oil            S&P
       (Fiscal Year Covered)       Company         Index           500
       ---------------------      ---------      ---------      ---------
                                                       
               1999                   100           100            100
               2000                   220           160             91
               2001                   215           147             80
               2002                   283           150             62


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




                                       16





       Long-term Incentives.  A significant  portion of an  executive  officers'
total compensation opportunity is comprised of long-term incentive awards, which
are intended to align executive  management's  interests in long-term growth and
success more  closely with the  interests  of the  Company's  stockholders.  The
committee has determined that a combination of stock option and restricted stock
awards is the most appropriate method to meet the Company's  long-term incentive
plan   objectives  of  rewarding  for  long-term   performance  and  encouraging
retention.  The additional emphasis on restricted stock was achieved by reducing
the value of the stock options awarded over a three-year  period by the value of
the restricted  stock awards.  The restricted  stock includes a three year cliff
vesting  restriction  and was  designed to be a one time award to replace a like
value of stock options that would have been issued over the next three years.

       The value of the long-term  incentive awards granted to  Mr. Sheffield in
2002 was  determined by a comparison of long-term  incentive  grants made to the
Chief Executive Officers' of peer group companies.  The other executive officers
were  reviewed  as a team.  The value of  long-term  incentives  granted to each
executive  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 executives of the Company.  The
award  levels  were  not  influenced  by  the  current  stock  holdings  of  the
executives.  The Company's  philosophy  is to award  long-term  incentives  with
values  that are above  market  average.  For 2002,  Mr.  Sheffield  was awarded
150,000 stock options and 72,000 shares of restricted  stock.  Hewitt Associates
concluded the 2002 award levels placed Mr. Sheffield and the other executives as
a group slightly above the 60th percentile for long-term  incentive awards among
the peer group.

       In summary,  the Company  believes a  significant  portion  of  executive
compensation  should be variable and  performance-based  so that an  executive's
total  compensation  opportunity is linked to the performance of the individual,
the Company and its stock price.  The majority of an executive  officers'  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 Committee of
The Board of Directors

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



                                       17





                             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 New York Stock Exchange.  The committee  operates pursuant to a
charter  adopted by the Board of  Directors.  A copy of the  current  charter is
attached to this proxy statement as Annex A.

       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 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 auditor's  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 fiscal year ended  December 31,  2002,  for filing with the
Securities  and  Exchange   Commission  (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


                                       18





                              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 Pioneer
Natural  Resources  Company  Corporate  Governance  Principles , which cover the
following principal subjects:

             o    Role and functions of the board
             o    Qualifications and independence of directors
             o    Committee functions and independence of committee members
             o    Meetings of non-employee directors
             o    Self-evaluation
             o    Ethics and conflicts of interest policy (a copy of the
                  current Code of Business Conduct and Ethics is attached to
                  this annual proxy statement as Annex D)
             o    Reporting of concerns to non-employee directors or the Audit
                  Committee
             o    Compensation of the board 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 attached to this proxy statement
as Annex E and are posted on the Company's  website at  www.pioneernrc.com.  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  New York Stock  Exchange (the  "NYSE") has proposed rules that would
require  listed  companies  to  adopt  governance  guidelines  covering  certain
matters.  The Company believes that the Corporate  Governance  Principles comply
with the proposed rules.

Director Independence

       The Company's  existing  standards for  determining director independence
require the assessment of directors'  independence  on an annual basis. In March
2003,  the Board of Directors  assessed  the  independence  of each  director in
accordance with its then-effective  independence standards for directors,  which
generally  define  an  independent  director  as  one  who  does  not  have  any
relationship with management or the Company that may interfere with the exercise
of his or her  independent  judgement.  The Board of Directors  has  determined,
after careful review, that each member of the Board of Directors is independent,
with  the  exception  of Mr.  Sheffield,  who  is an  employee  of the  Company.
Accordingly, eight out of the nine current members of the Board of Directors are
independent directors.

       The NYSE has  proposed  rules that  would adopt  a revised  definition of
director  independence for listed companies.  Upon final approval of such rules,
the  Board of  Directors  will  amend the  Corporate  Governance  Principles  as
necessary to ensure that the Company's standards for director  independence meet
or exceed  those in the  final  rules,  and will  thereafter  evaluate  director
independence in accordance with those standards.  Based on the rules as proposed
at the time of the Board of Director's evaluation of independence in March 2003,
the  Board of  Directors  believes  that  all  non-employee  directors  would be
independent under the proposed rules.

Election of Lead Director

       In  February  2003,   the  Board  of  Directors  elected  Mr.  Ramsey,  a
non-employee  director,  to serve as chairman of the regular private meetings of
the  independent  directors,  and as Chairman of the  Company's  Nominating  and
Corporate Governance  Committee (the "Lead Director").  Utilizing input from all


                                       19





directors, the Lead Director will work with the CEO and Chairman of the Board to
determine the appropriate  agenda and information  package for Board of Director
meetings;  meet with the CEO and Chairman of the Board,  senior  management  and
individual directors,  as required,  to facilitate effective  communications and
information flow; take a leadership role in CEO succession and senior management
development;   take  a  leadership  role  in  director  evaluation,   continuing
education,  recruiting  and  orientation;  and serve as the  Board of  Directors
contact in the process for direct employee and stockholder  communications  with
the Board of Directors.

Financial Literacy of Audit Committee and Designation of Financial Experts

       In March 2003,  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 recently defined by
the SEC.

Procedure for Directly Contacting the Board and Whistleblower Policy

       A means for  stockholders and employees to contact the Board of Directors
directly 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 (a) questionable  accounting,  internal controls and auditing matters;
(b)  materially  misleading  statements  or  omissions  in  SEC  reports,  press
releases,  or other public statements or other forms of wire, mail or securities
fraud; or (c) dishonest or unethical conduct, conflicts of interest,  violations
of the  Company's  codes 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.


                                       20





                               COMPANY PERFORMANCE

       The  following  graph and chart  compare the  Company's  cumulative total
stockholder  return on common stock during the period from  December 31, 1997 to
December 31, 2002,  with  cumulative  total  stockholder  return during the same
period for the DJ Secondary  Oil Index and the S&P 500 as  prescribed by the SEC
rules. The graph and chart show the value, at December 31 in each of 1998, 1999,
2000,  2001 and 2002 of $100  invested  at  December  31,  1997,  and assume the
reinvestment of all dividends.

                COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN *
    AMONG PIONEER NATURAL RESOURCES COMPANY, THE STANDARD & POOR'S 500 INDEX
              AND THE DOW JONES U.S. OIL COMPANIES, SECONDARY INDEX



                                       Pioneer         DJ
                                       Natural      Secondary
                 Measurement          Resources        Oil           S&P
            (Fiscal Year Covered)      Company        Index          500
            ---------------------     ---------     ---------     ---------

                                                         
                     1997                100           100           100
                     1998                 30            69           129
                     1999                 31            79           156
                     2000                 68           126           141
                     2001                 67           116           125
                     2002                 88           119            97

            ---------------
            *   Assumes $100 invested on December 31, 1997 in stock or
                index, including reinvestment of dividends.




                                                             Fiscal year ending December 31,
                                                     1997     1998     1999    2000     2001     2002
                                                     ----     ----     ----    ----     ----     ----

                                                                                  
            Pioneer Natural Resources Company         100        30       31      68       67       88
            DJ Secondary Oil Index                    100        69       79     126      116      119
            S&P 500                                   100       129      156     141      125       97




                                       21





         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 19, 2003,  by (a) each person
who is known by the Company to own  beneficially  more than five  percent of the
outstanding  shares of common stock, (b) each director of the Company,  (c) each
named  executive  officer of the Company,  and (d) all  directors  and executive
officers as a group.



                                                                  Number of      Percentage
       Name of Person or Identity of Group                          Shares      Of Class (1)
       -----------------------------------                        ----------    ------------

                                                                              
Southeastern Asset Management, Inc. (2).......................    20,588,394        17.5
Longleaf Partners Fund
O. Mason Hawkins
6410 Poplar Avenue, Suite 900
Memphis, Tennessee  38119

Scott D. Sheffield (3) (4) (5)................................       517,722          *

Timothy L. Dove (3) (5) (6)...................................       197,097          *

Dennis E. Fagerstone (3) (5)..................................       288,929          *

Danny L. Kellum (3) (5) (7)...................................       114,536          *

Mark L. Withrow (3) (5) (8)...................................       235,213          *

James R. Baroffio (3) (9).....................................        58,849          *

Edison C. Buchanan (5)........................................         7,113          *

R. Hartwell Gardner (3).......................................        70,480          *

James L. Houghton (3) (5) (10)................................        52,807          *

Jerry P. Jones (3)............................................        56,648          *

Linda K. Lawson (5) (11)......................................         5,981          *

Charles E. Ramsey, Jr. (3)....................................        45,307          *

Robert A. Solberg (5) ........................................         5,581          *

All directors and executive officers as a group
  (14 persons) (5) (12).......................................     1,764,524        1.5


*    Does not exceed one percent.

(1)  Based on 117,610,782 shares of common stock outstanding.

(2)  The Schedule 13G/A filed with the SEC on January 10, 2003, 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 C.E.O. 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.

(3)  Includes the following  number of shares subject to stock options that were
     exercisable  at or within 60 days  after  March 19,  2003:  Mr.  Sheffield,
     273,500;  Mr. Dove, 141,833; Mr. Fagerstone,  234,022; Mr. Kellum,  78,000;
     Mr. Withrow,  149,666;  Mr.  Baroffio,  48,096;  Mr. Gardner,  57,991;  Mr.
     Houghton, 41,576; Mr. Jones, 41,096; and Mr. Ramsey, 36,307.

                                       22





(4)  Includes 5,000 shares held in Mr. Sheffield's investment retirement account
     and 10,280 shares held in Mr. Sheffield's 401(k) account.

(5)  Includes the following number of unvested restricted shares: Mr. Sheffield,
     72,000; Mr. Dove, 24,000; Mr. Fagerstone,  24,000; Mr. Kellum,  24,000; Mr.
     Withrow,  24,000;  Mr. Buchanan,  5,589;  Mr.  Houghton,  317: Mrs. Lawson,
     5,081; Mr. Solberg,  5,081;  and all directors and executive  officers as a
     group, 208,068.

(6)  Includes 339 shares held in Mr. Dove's 401(k) account.

(7)  Includes 516 shares held in Mr. Kellum's 401(k) account.

(8)  Includes 17,170 shares held in Mr. Withrow's 401(k) account.

(9)  Includes 10,753 shares held in trust that are shares  beneficially owned by
     Mr. Baroffio.

(10) Includes 8,914 shares held by two trusts of which Mr. Houghton is a trustee
     and over which  shares he has sole  voting and  investment  power and 2,000
     shares held in Mr. Houghton's investment retirement account.

(11) Includes 900 shares held in Mrs. Lawson's investment retirement account.

(12) Includes  1,177,587  shares of common stock  subject to stock  options that
     were  exercisable  at or within 60 days  after  March 19,  2003.  Including
     outstanding  option  awards to  directors  and  executive  officers  for an
     additional  650,802 shares of common stock which do not become  exercisable
     within 60 days after March 19, 2003,  directors and executive officers as a
     group own 2.0 percent of class.



             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 Susan A.  Spratlen,  the
Company's Vice President - Investor Relations and Communication,  did not timely
file one report on Form 4 covering one transaction  effected during 2002.  Other
than as discussed  above,  the Company  believes that all required  reports were
filed on time for 2002.

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

       During  2002,  the  Company did  not enter  into  any  transactions  with
management  and others,  nor was it a party to business  relationships  or other
arrangements or transactions,  that would be reportable as certain relationships
and  related  transactions.  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.  provide  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.  Accordingly,  the Board
of Directors  does not consider this  relationship  to be relevant to Mr. Jones'
independence.

                              STOCKHOLDER PROPOSALS

       Any stockholder  of the  Company who  desires to  submit a  proposal  for
action at the Company's  annual meeting of  stockholders  for 2004 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 11, 2003,  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 annual meeting of  stockholders in 2004, 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


                                       23





principal  executive offices no later than February 24, 2004, unless the Company
notifies  the  stockholders  otherwise.  If a  Non-Rule  14a-8  Proposal  is not
received by the Company on or before February 24, 2004, 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.

       Stockholders  desiring  to  propose  action  at  the  annual  meeting  of
stockholders  must also comply with  Article  Ninth of the Amended and  Restated
Certificate of Incorporation of the Company.  Under Article Ninth, 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 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 1400, Irving,  Texas 75039. The Company suggests that
any such proposal be sent by certified mail, return receipt requested.

       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 2004 if that nomination is submitted in writing,  not
later than January 9, 2004, to Corporate  Secretary,  Pioneer Natural  Resources
Company,  5205 North O'Connor Boulevard,  Suite 1400, Irving,  Texas 75039. Each
submission  must 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 Board of Directors and its committees.

                             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  $7,500.00.  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 10 days before the Annual Meeting.

                                  ANNUAL REPORT

       The Company's  Annual Report  to Stockholders  for the  fiscal year ended
December 31, 2002,  is being mailed to stockholders concurrently with this Proxy
Statement and does not form part of the proxy solicitation material.


                                       24





       A copy of the  Company's Annual  Report on  Form 10-K  for the year ended
December  31,  2002,  as 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 1400, 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 at the
address previously given or by calling  972-969-3583.  The Annual Report on Form
10-K  is  also   available  at  the  SEC's  web  site  in  its  EDGAR   database
(www.sec.gov).


                                 INTERNET VOTING

       For shares  of stock  that  are  registered in  your name,  you  have the
opportunity  to vote  through  the  Internet  using a  program  provided  by the
Company's   transfer   agent,   Continental   Stock  Transfer  &  Trust  Company
("Continental").  Votes submitted electronically through the Internet under this
program  must be received by 5:00 p.m.,  New York time,  on  Wednesday,  May 14,
2003.  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 through the Internet, please access Continental on the World Wide
Web at  www.continentalstock.com.  Select  "ContinentaLink  Proxy Voting" on the
screen.  At the next screen,  you will need to enter the Company  Number,  Proxy
Number and Account Number that are printed on your personalized proxy card.

       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  COMPLETE,  SIGN,  AND
RETURN THE PROXY IN THE  ENCLOSED  POSTAGE-PAID,  ADDRESSED  ENVELOPE OR TO VOTE
THROUGH THE INTERNET.

                                       By Order of the Board of Directors


                                        /s/ Mark L.  Withrow
                                       -------------------------------------
                                       Mark L. Withrow
                                       Secretary

Irving, Texas
April 7, 2003


                                       25





                                     Annex A


                        PIONEER NATURAL RESOURCES COMPANY

                    AUDIT COMMITTEE OF THE BOARD OF DIRECTORS

                                     CHARTER


I      Purpose

       The Board of Directors (the "Board") of Pioneer Natural Resources Company
(the "Company") has  established  the Audit  Committee (the  "Committee") of the
Board.  The purposes of the Committee are to assist the Board in fulfilling  its
oversight responsibilities by:

       A.     overseeing  the   reliability  and  integrity  of  the   Company's
              financial statements, accounting policies, and financial reporting
              and disclosure practices,

       B.     overseeing the  Company's compliance  with  legal  and  regulatory
              requirements,

       C.     overseeing    the   independent   auditor's   qualifications   and
              independence,

       D.     overseeing  the  performance  of  the  Company's  internal   audit
              function and any independent internal auditors,

       E.     overseeing  the Company's  systems of  internal controls regarding
              finance,  accounting,  legal compliance and ethics that management
              and the Board have established,

       F.     reviewing  and  appraising  the  audit  efforts  of  the Company's
              independent auditors and  internal auditing department  (reference
              to internal  auditors or the  internal audit  department  in  this
              Charter shall include both internal audit activities and functions
              conducted by  employees  of the  Company  or by  outside  auditors
              engaged for such purposes) and,  where appropriate,  replacing the
              independent auditors or internal audit department,

       G.     providing an open avenue of  communication  among the  independent
              auditors,  financial and senior management,  the internal auditors
              or  department,   and  the  Board,  always  emphasizing  that  the
              independent auditors  are  ultimately accountable to the Committee
              and the Board, and

       H.     preparing annually the report the SEC rules require be included in
              the proxy statement relating  to the  Company's annual  meeting of
              stockholders, and

       I.     performing such other duties as are directed by the Board.

Consistent  with  this  Purpose,   the  Committee  should  encourage  continuous
improvement  of,  and  should  foster  adherence  to,  the  Company's  policies,
procedures and practices at all levels.  The Committee  will  primarily  fulfill
these responsibilities by carrying out the activities enumerated in Section V of
this Charter.

II     Composition

       The  Committee  shall  be  comprised  of  three  or  more  Directors,  as
determined  by the Board or a nominating  committee  of the Board,  none of whom
shall be an affiliate of the Company or an employee or a person who receives any
compensation  from the  Company  other than fees paid for service as a Director.
The  members of the  Committee  shall be  elected  by the Board or a  nominating
committee of the Board annually and shall serve until their  successors shall be
duly elected and qualified.  Each member shall be  "independent" as defined from
time to time by the  listing  standards  of the New  York  Stock  Exchange  (the
"NYSE") and by applicable  regulations of the Securities and Exchange Commission


                                       26





(the "SEC") and shall meet any other applicable independence requirements of the
NYSE and SEC.  Accordingly,  the Board shall  determine  annually  whether  each
member  is free  from  any  relationship  that  may  interfere  with  his or her
independence from management and the Company.  No member shall serve on an audit
committee of more than two other public  companies  unless the Board  determines
that such simultaneous  service would not impair the ability of such director to
effectively serve on the Committee.

       Each member  shall be  (or shall  become within  a reasonable  time after
appointment) financially literate, and at least one member shall be a "financial
expert"  as  defined  from time to time by  applicable  regulations  of the SEC.
Members  of the  Committee  may  enhance  their  familiarity  with  finance  and
accounting  principles by participating in educational programs that the Company
or an outside consultant conducts.

       Notwithstanding the foregoing  membership requirements,  no action of the
Committee  shall be invalid by reason of any such  requirement  not being met at
the time such action is taken.

III    Meetings and Structure

       The Committee  shall meet  at least  four  times per  year to  review the
financial   information  of  the  Company,   consistent   with  its  duties  and
responsibilities, and as many additional times as the members deem necessary. As
a part of its effort to foster open communications, the Committee should meet at
least  annually  with  management,   the  director  of  the  internal   auditing
department,  and the  independent  auditors  in separate  executive  sessions to
discuss any matters that the Committee or each of these groups believe should be
discussed privately.

       Unless the Board designates a Chair of the Committee,  the members of the
Committee shall, by majority vote of the full Committee membership,  appoint one
member of the  Committee  as  chairperson.  He or she shall be  responsible  for
leadership of the Audit  Committee,  including  preparing the agenda,  presiding
over the meetings,  making committee assignments and reporting to the Board. The
chairperson will also maintain regular liaison with the Chief Executive Officer,
the Chief Financial Officer, the lead audit partner of the Company's independent
auditors and the Company's internal auditor.

IV     Accountability of the Independent Auditors

       The independent auditors are accountable to the Committee.  The Committee
shall have the sole authority and responsibility  with respect to the selection,
engagement,   compensation,   oversight,   evaluation  and,  where  appropriate,
dismissal of the Company's  independent  auditors.  The  Committee,  or a member
thereof,  must pre-approve any non-audit  service provided to the Company by the
Company's independent auditors.

V      Authority and Responsibilities

       The Committee  shall have  the authority  to  take  all actions  it deems
advisable to fulfill its  responsibilities  and duties. The Committee shall have
the authority to retain  professional  advisors  including,  without limitation,
special legal counsel,  accounting  experts,  or other consultants to advise the
Committee,  which may be the same as or  different  from the  Company's  primary
legal counsel,  accounting  experts and other consultants as the Committee deems
necessary  or  advisable  in  connection  with the  exercise  of its  powers and
responsibilities as set forth in this Audit Committee Charter, all on such terms
as the Committee  deems  necessary and advisable.  The Committee may require any
officer or  employee of the Company or any of its  subsidiaries,  the  Company's
outside legal counsel,  and the Company's  external auditors to attend a meeting
of the Committee or to meet with any member of, or consultant to, the Committee.
The Committee  chairperson,  or other designee of the  Committee,  may also meet
with the  Company's  investment  bankers or  financial  analysts  who follow the
Company.

       The  Committee   shall  be   responsible  for  the   resolution  of   any
disagreements  between the  independent  auditors and  management  regarding the
Company's financial reporting.

       The Company shall provide for  appropriate funding,  as determined by the
Committee,  for payment of compensation to the independent  auditors employed by


                                       27





the Company for the purpose of  rendering  or issuing an audit report and to any
special legal counsel,  accounting experts or other consultants  employed by the
Committee.

       To  further  fulfill the  purpose,  powers and responsibilities set forth
above, the Committee shall also:

       A.     Independent Auditors

              o     Annually  select  and  engage   the  Company's   independent
                    auditors  retained  to audit the financial statements of the
                    Company  with  such  selection   to  be   submitted  to  the
                    stockholders for ratification, if the  Board of Directors so
                    chooses.

              o     Review the  performance  of  the  independent  auditors  and
                    approve  any  proposed discharge of the independent auditors
                    when circumstances warrant.

              o     Review and pre-approve the plan and scope of the independent
                    auditors'  auditing  services  (including  comfort letters),
                    non-audit  services  and  related  fees.  The Company  shall
                    disclose  any  non-audit  services  approved  by  the  Audit
                    Committee in the  Company's periodic  reports filed with the
                    SEC.

              o     Ensure that the  lead  audit  partner  and  reviewing  audit
                    partner of the Company's independent auditors are rotated at
                    least every five years.

              o     Set clear hiring policies  for employees or former employees
                    of the Company's independent auditors.

              o     Periodically obtain and review a report from the independent
                    auditors regarding all relationships between the independent
                    auditors  and the  Company that  may  affect the independent
                    auditors'  objectivity  and  independence,  and  discuss the
                    report with the  independent  auditors.  The Committee shall
                    also  recommend  any  appropriate  action to  the  Board  in
                    response to  the written  report necessary to satisfy itself
                    of the  independence  and  objectivity  of  the  independent
                    auditors.

              o     Periodically obtain and review reports  from the independent
                    auditors  that  include  (i)  all  alternative treatments of
                    financial  information within  generally accepted accounting
                    principles   ("GAAP")  that   have   been   discussed   with
                    management,  their ramifications and  the preferences of the
                    independent  auditors,   and  (ii)  other  material  written
                    communications   between   the   independent   auditors  and
                    management.

              o     Review   and   approve  the   appointment,   termination  or
                    replacement by management of a Director of Internal Auditing
                    or, at the discretion of the Board, select and contract with
                    outside  auditors  to  perform  the  function of an internal
                    audit department.

              o     Direct  the  scope  of  the  duties  and  activities  of the
                    Director  of  Internal  Auditing  or  any  outside  auditors
                    serving as  internal auditors,  who shall report directly to
                    the Audit Committee.

       B.     Review

              o     Periodically obtain and review  reports from the independent
                    auditors that  include all  critical accounting policies and
                    practices used.

              o     Review with  management  and the  independent  auditors  the
                    Company's   quarterly   or   annual   financial  information
                    including matters  required to be  reviewed under applicable
                    legal,  regulatory or  NYSE requirements prior to the filing
                    of the  Company's  Quarterly  Report on  Form 10-Q or Annual
                    Report on  Form 10-K,  as the  case may be,  or prior to the
                    release of earnings.


                                       28





              o     Discuss  with financial  management the  Company's  earnings
                    releases, including the use of  "pro  forma",  "adjusted" or
                    other non-GAAP  measures,  as well as  financial information
                    and earnings guidance,  if  any,  provided  to  the  public,
                    analysts or rating agencies.

              o     Review and  discuss  with  management  and  the  independent
                    auditors the disclosures made in management's discussion and
                    analysis of financial condition and results of operations in
                    any of the Company's reports on Form 10-Q or Form 10-K.

              o     Upon completion of any  annual audit,  meet  separately with
                    the  independent  auditors and  management  and  review  the
                    Company's  financial  statements  and  related  notes,   the
                    results  of their audit,  any report or opinion  rendered in
                    connection    therewith,    any   significant   difficulties
                    encountered during  the course  of the audit,  including any
                    restrictions on  the  scope of  work or  access to  required
                    information,  any  significant disagreements with management
                    concerning   accounting   or  disclosure  matters  and   any
                    significant adjustment proposed by the independent auditors.

              o     Regularly review with the Company's independent auditors any
                    audit problems or difficulties and management's response.

              o     Review  and  consider  with  the  independent  auditors  and
                    management the matters required to be discussed by Statement
                    of  Auditing  Standards  No.  61.  These  discussions  shall
                    include  consideration  of  the  quality  of  the  Company's
                    accounting principles as applied in its financial reporting,
                    including review of estimates, reserves and accruals, review
                    of judgmental areas,  review of audit adjustments whether or
                    not recorded and such other inquiries as may be appropriate.

              o     Based on the  foregoing review,  make recommendation  to the
                    Board as to the inclusion of the Company's audited financial
                    statements in the Company's annual report on Form 10-K.

              o     Review any  disclosures  provided  by  the  Chief  Executive
                    Officer  or the  Chief  Financial  Officer to  the Committee
                    regarding   significant  deficiencies   in  the   design  or
                    operation  of internal controls which could adversely affect
                    the Company's  ability to record,  process,  summarize,  and
                    report financial data.

              o     Review  with  management  and the  independent  auditors any
                    significant transactions  that are  not a normal part of the
                    Company's operations and changes,  if any,  in the Company's
                    accounting principles or their application.

              o     At  least  annually,  obtain  and  review  a  report  by the
                    independent   auditors   describing   the   firm's  internal
                    quality-control  procedures;  any material  issues raised by
                    the most recent  internal  quality-control  review,  or peer
                    review,  of the firm,  or by any inquiry or investigation by
                    governmental  or  professional   authorities,   within   the
                    preceding  five years,  respecting  one  or more independent
                    audits carried out by the firm, and any  steps taken to deal
                    with any such issues.

              o     Periodically meet and  review with the  Director of Internal
                    Auditing the regular internal reports to management prepared
                    by the  internal  auditing  department and  the  progress of
                    activities and any  findings of major significance  stemming
                    from internal audits.

       C.     Financial Reporting Processes

              o     Periodically   discuss   separately  with  management,   the
                    independent auditors and the  internal auditors the adequacy
                    and  integrity  of the  Company's  accounting  policies  and
                    procedures   and    internal   accounting   controls,    the
                    completeness  and  accuracy  of   the  Company's   financial
                    disclosure and  the extent  to which  major  recommendations
                    made by the independent  auditors  or the  internal auditors
                    have been implemented or resolved.


                                       29





              o     Consider and approve,  if appropriate,  major changes to the
                    Company's auditing  and accounting  principles and practices
                    as suggested by the independent auditors, management, or the
                    internal auditing department.

              o     Review with the independent auditors,  the internal auditing
                    department and  management the  extent to which such changes
                    have been implemented. This review should be conducted at an
                    appropriate time subsequent to implementation of changes, as
                    the Committee determines.

       D.     Process Improvement

              o     Establish regular  and separate  systems of reporting to the
                    Audit  Committee  by  each of  management,  the  independent
                    auditors and the Director of Internal Auditing regarding any
                    significant  judgments made in  management's  preparation of
                    the  financial  statements  and  the  view  of  each  as  to
                    appropriateness of such judgments.

              o     Conduct  annual  evaluation  with  the  Board  regarding the
                    performance of the Audit Committee.

              o     Discuss  with  management  and   the  Director  of  Internal
                    Accounting policies with respect to risk assessment and risk
                    management.

              o     Regularly  apprise the  Board,  through  minutes and special
                    presentations as necessary,  of significant  developments in
                    the course of performing these duties.

       E.     Ethical and Legal Compliance

              o     Establish   procedures  for   the  receipt,   retention  and
                    treatment  of   complaints  received  regarding  accounting,
                    internal  accounting  controls,  auditing  matters  and  the
                    confidential, anonymous submissions by employees of concerns
                    regarding questionable accounting or auditing matters.

              o     Review  any  disclosures  provided  by  the  Chief Executive
                    Officer or the  Chief  Financial  Officer  to the  Committee
                    regarding  (i)  significant  deficiencies  in the  design or
                    operation of internal controls which could adversely  affect
                    the Company's  ability to  record,  process,  summarize  and
                    report  financial  data;  and (ii) any fraud, including that
                    which  involves  management or  other  employees  who have a
                    significant role in the Company's internal controls.

              o     Investigate at  its  discretion any  matter  brought  to its
                    attention  by,  without  limitation,  reviewing  the  books,
                    records and  facilities  of  the  Company  and  interviewing
                    Company officers or employees.

              o     Review management's  monitoring of the  Company's compliance
                    programs and evaluate whether management  has review systems
                    in place  designed to  ensure  that the  Company's financial
                    statements,   reports   and   other   financial  information
                    disseminated  to  governmental  organizations and the public
                    satisfy applicable legal, regulatory or NYSE requirements.

              o     Review with the Company's in-house or outside  legal counsel
                    any legal matter that could have a significant effect on the
                    Company's  financial  statements,  including  the  status of
                    pending  litigation,  taxation  matters  and other  areas of
                    oversight  to  the  legal  and  compliance  area  as  may be
                    appropriate.


                                       30





              o     Review  with  management  and  the  independent auditors the
                    Company's policies and procedures regarding  compliance with
                    its  internal  policies  as  well  as  applicable   laws and
                    regulations,  including without  limitation with  respect to
                    maintaining  books,  records and  accounts and  a system  of
                    internal  accounting  controls  in  accordance with  Section
                    13(b)(2) of the Securities Exchange Act of 1934.

       F.     General

              o     Perform any other  activities consistent  with this Charter,
                    the Company's Certificate  of Incorporation and Bylaws,  the
                    rules of the  NYSE applicable  to its  listed companies, and
                    governing  law as  the Audit  Committee or  the  Board deems
                    necessary or appropriate.

VI     Review of Committee Charter

       At least annually,  the Committee shall  review and reassess the adequacy
of this  Charter.  The  Committee  shall report the results of the review to the
Board  and,  if  necessary,  make  recommendations  to the  Board to amend  this
Charter.

VII    Limitations

       While the Committee has the responsibilities and powers set forth in this
Charter  and  management  and  the  independent  auditors  for the  Company  are
accountable  to the  Committee,  it is not the duty of the  Committee to plan or
conduct  audits or to determine  that the  Company's  financial  statements  are
complete  and  accurate  and  are  in   accordance   with  GAAP.   This  is  the
responsibility of management.



                                       31





                                     Annex B


                        PIONEER NATURAL RESOURCES COMPANY

                COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS

                                     CHARTER


I      Purposes

       The Board of Directors (the "Board") of Pioneer Natural Resources Company
(the "Company") has established the Compensation  Committee (the "Committee") of
the  Board.  The  purposes  of  the  Committee  are  to  discharge  the  Board's
responsibilities relating to:

       1.    the compensation of the Company's executive officers;

       2.    the  publishing in the  annual  meeting proxy statement a report on
             executive  compensation,   and  compliance  with  the  compensation
             reporting  requirements of the  Securities and Exchange Commission,
             New York Stock Exchange, and any other regulatory bodies;

       3.    administering the Company's employee benefit plans; and

       4.    formulating   and   monitoring  the   Company's  overall   employee
             compensation and benefits philosophy and strategy.

The Committee shall have  such additional  powers,  authority and  duties as are
described in this Charter, as are reasonably  necessary to carry out the general
purposes of this Charter and the plan documents  referred to herein,  and as may
be assigned from time to time by the Board.

II     Composition

       The Committee  will  consist  of a  minimum  of  three  (3)  directors as
determined by the Board.  Unless the Board  designates a chair of the committee,
the members of the  committee may designate a chair by majority vote of the full
committee  membership.  All members of the Committee at all times during his/her
tenure on the Committee must meet the definition of:

       o     A   "non-employee  director"  within  the  meaning  of  Rule  16b-3
             promulgated under the Securities and Exchange Act of 1934;

       o     An  "outside  director"  within  the  meaning Section 162(m) of the
             Internal Revenue Code of 1986, as amended; and

       o     An "independent director"  within the meaning of the New York Stock
             Exchange Inc. rules and regulations.

       In appointing members to the Committee,  the Board shall keep in mind the
following:

       o     Whether an individual  has sufficient time to commit to services to
             the Committee;

       o     Whether an  individual  has  experience or  knowledge  with setting
             compensation policies, procedures and programs,  and the review and
             administration of executive and director compensation programs;

       o     Whether  an  individual  has a  strong  understanding  of financial
             performance measurements; and


                                       32





       o     Whether an  individual brings  skills and  abilities not  otherwise
             possessed by other Committee members  that would aid the  Committee
             in the execution of its duties and responsibilities.

The Board may  remove or replace  the  chairperson  and any other  member of the
Committee at any time.

III    Meetings

       The Committee  customarily  conducts  a  minimum  of  four  (4) regularly
scheduled meetings each year, including executive sessions, as needed.

       A majority  of  the  Committee  members  will  constitute a  quorum.  The
Committee shall have the authority to act on the affirmative vote of  a majority
of members present at a meeting at which a quorum is present,  and such act will
be the act of the Committee.

       Attendance  at  meetings  shall be  permitted  in  person,  by  telephone
conference call or other means which allows members to effectively interact with
one another and fully discuss proposed actions,  or in any other manner in which
the Board is permitted  to meet under law or the  Company's  bylaws.  Any action
permitted or required to be taken at a meeting of the  Committee  will be deemed
the action of the Committee if the Committee  members execute,  either before or
after the action is taken, a unanimous  written consent and the consent is filed
with the Company's Corporate Secretary.

       Regular  meetings  of the  Committee  shall be  called  according  to the
schedule  for the  year  approved  by the  Committee.  Special  meetings  of the
Committee  can be called by the  chairperson,  a majority  of the members of the
Committee, the Chairman of the Board, or by a majority of the Board.

       The Vice President - Administration, or such other officer as may from
time to time be designated by the Committee,  shall act as management liaison to
the Committee and shall work with the Committee chairperson to prepare an agenda
for regularly scheduled meetings.  The Committee chairperson will make the final
decision regarding the agenda for regularly scheduled meetings and shall develop
the  agenda  for  special  meetings  based on the  information  supplied  by the
party(ies) requesting the special meeting.

       The agenda  and all  materials to be  reviewed at  the meetings should be
received  by the  Committee  members  as far in advance  of the  meeting  day as
practicable (which for regularly scheduled meetings will normally be five days.)

       The office of the Corporate Secretary shall coordinate and be responsible
for all mailings to the Committee members, to the extent practicable,  and shall
be  responsible  for recording  accurate  Minutes of all Committee  meetings and
distributing them to Committee members.

IV     Duties and Responsibilities

       The Committee shall  have the  following duties and  responsibilities and
the necessary power and authority,  including budgetary and fiscal authority, to
carry out such duties and responsibilities:

                             Executive Compensation

       o     Periodically review  the Company's  compensation philosophy and how
             the pay programs align with philosophy,  especially in  relation to
             the Company's business goals and strategies,  determine whether any
             change is  needed or  desired,  and if so,  modify  and revise  the
             Company's compensation philosophy or  compensation programs,  plans
             or awards accordingly.

       o     Annually review  market data  to assess  the Company's  competitive
             position  for each component of  executive compensation (especially
             base salary, annual incentives,  long-term incentives and benefits)
             by reviewing appropriate peer  companies'  market  data compiled by
             third party consultants.



                                       33





       o     Approve, subject where appropriate  to submission to  stockholders,
             all equity-related incentive compensation plans (including specific
             provisions) in which the Company officers and any others subject to
             the reporting and short-swing liability provisions of Section 16 of
             the Securities Exchange Act of 1934 are  participants,  and perform
             such acts  and  duties  as are  necessary to  administer such plans
             pursuant to their terms  and conditions and in conformance with any
             further restrictions  placed thereon  by the Board,  including, but
             not limited to the following:

             o     Approving equity incentive guidelines and the general size of
                   overall grants;

             o     Approving  specific  grants  to  Company  officers,  and  any
                   others,  subject  to the  reporting and short-swing liability
                   provisions of Section 16 of the  Securities  Exchange  Act of
                   1934;

             o     Amending or interpreting the plans;

             o     Determining rules and regulations relating to the plans;

             o     Designating categories  of employees  eligible to participate
                   in the long-term incentive plans;

             o     Imposing  limitations,  restrictions and  conditions upon any
                   award as the Committee deems appropriate; and

             o     Establishing, maintaining, revising and  rescinding rules and
                   regulations relating to the Company's incentive plans.

       o     Review annually and determine the individual  elements of the total
             compensation  and benefits  paid to  each of the Company's officers
             after  (a)  determining  such  compensation  and   benefits  to  be
             appropriate  for  the  size  of  the  Company  and  the  scope  and
             performance  of  the  Officers'  duties  and  responsibilities, (b)
             considering the recommendation made by the CEO for the compensation
             of such officers, and (c) reviewing the Board's evaluation, if any,
             of each such officer.

       o     Approve,  and  periodically  review  the  terms  of any  employment
             contract, severance agreement or  change of  control agreements for
             individuals or groups of employees.

       o     Annually issue a  report on  executive  compensation in  accordance
             with  applicable  rules  and  regulations  of  the  Securities  and
             Exchange Commission for inclusion in the  Company's proxy statement
             for its annual meeting of stockholders.

                                CEO Compensation

       o     Review  annually  and  determine  the  individual elements of total
             compensation  and benefits  for the  Chief Executive  Officer after
             taking into consideration the following:

             o     the size of the Company;

             o     market data compiled by third-party consultants;

             o     the CEO's duties and responsibilities;

             o     the performance  of the  CEO in  meeting  corporate goals and
                   objectives; and

             o     such other criteria as the Committee deems appropriate.

       o     Review and approve annually specific corporate goals and objectives
             relative to CEO  compensation for  the next year,  and discuss with
             the entire Board;


                                       34





       o     After receiving  from the full Board the year-end evaluation of the
             CEO in meeting  the goals and  objectives  previously  set for that
             year,  determine the  total compensation of the CEO based upon that
             evaluation.

       o     Recommend to the Board stock ownership requirements for the CEO.

                       Director and Committee Compensation

       o     Periodically  review  and   recommend  to  the  full   Board  total
             compensation for  each non-employee director  and Committees of the
             Board and determine the terms and awards of any equity compensation
             for members of the Board.

       o     Conduct an annual performance  evaluation of the  Committee and its
             members and submit the  evaluation for review and evaluation by the
             Board.

       o     Recommend  to  the  Board  stock  ownership  requirements  for  the
             Directors.

V      General

       The Committee  shall  have  the  sole  authority  to  retain,  amend  the
engagement with, and terminate any compensation  consultant to be used to assist
in the  evaluation  of director,  Chief  Executive  Officer or senior  executive
compensation.   The  Committee   shall  have  sole   authority  to  approve  the
consultant's  fees and other  retention  terms and shall have authority to cause
the Company to pay the fees and  expenses  of such  consultants.  The  Committee
shall also have  authority  to obtain  advice and  assistance  from  internal or
external legal,  accounting or other advisors,  to approve the fees and expenses
of such outside advisors,  and to cause the Company to pay the fees and expenses
of such outside advisors.

       The Committee shall  regularly report  to the Board on its activities and
decisions.

       The  Committee  members  will  commit  themselves,  through  the  use  of
consultants,  review of current  publications,  surveys or other  pertinent data
dealing  with  corporate   director  and/or  officer   compensation,   to  being
knowledgeable and current in compensation, benefit and related issues.

       The Committee shall  annually review and evaluate the Committee's Charter
and recommend any necessary revisions to the full Board.



                                       35





                                     Annex C


                        PIONEER NATURAL RESOURCES COMPANY

                  NOMINATING AND CORPORATE GOVERNANCE COMMITTEE
                            OF THE BOARD OF DIRECTORS

                                     CHARTER


I      Purposes

       The Board of  Directors (the "Board) of Pioneer Natural Resources Company
(the  "Company")  has  established  the  Nominating  and  Corporate   Governance
Committee (the "Committee") of the Board. The purposes of the Committee are:

       1.    To identify individuals qualified to  become Board members,  and to
             recommend to the  Board the  director  nominees for election at the
             annual  meetings  of  stockholders  or  for   appointment  to  fill
             vacancies;

       2.    To recommend  to the Board director  nominees for each committee of
             the Board;

       3.    To advise the Board about appropriate  composition of the Board and
             its committees;

       4.    To advise the  Board about,  develop,  and  recommend  to the Board
             appropriate corporate governance  practices and to assist the Board
             in implementing those practices;

       5.    To oversee the evaluation of the Board through its annual review of
             the performance of the Board and its committees and otherwise;

       6.    To oversee the evaluation of the management of the Company; and

       7.    To perform  such  other functions  as the  Board may  assign to the
             Committee from time to time.

II     Composition

       The Board shall appoint the members of the Committee. The Committee shall
consist of at least three  members,  all of whom are  members of the Board.  The
Lead Director of the Board shall serve as the chairperson of the Committee. Each
member of the Committee shall satisfy the independence requirements of the rules
of the New York Stock Exchange applicable to domestic listed companies.

       The Board may  remove or  replace the chairperson and any other member of
the Committee at any time. On matters  pertaining to the nomination of Directors
for election at the annual or any special meeting of  stockholders,  any members
of the  Committee  whose term is expiring and who would be eligible for election
at such  stockholder  meeting shall abstain from any vote and not participate in
the Committee meeting(s) called for such nomination.

III    Authority and Responsibilities

       The Committee is delegated all  authority of the Board as may be required
or advisable to fulfill the purposes of the  Committee.  The  Committee may form
and  delegate  some or all of its  authority  to  subcommittees  when  it  deems
appropriate.  Without limiting the generality of the preceding  statements,  the
Committee shall have authority, and is entrusted with the responsibility,  to do
the following actions.

       1.    The Committee shall prepare and recommend to the Board for adoption
             appropriate corporate  governance guidelines and modifications from
             time to time to those guidelines.

                                       36





       2.    The Committee shall  develop  criteria for  Board members and shall
             actively seek, interview, evaluate, and identify for recommendation
             to the Board individuals qualified to become Board members.

       3.    The Committee shall  seek to provide  that a two-thirds majority of
             the members of  the Board are  independent directors  and that each
             committee of the Board contains exclusively or,  if appropriate,  a
             majority of members that are  independent to the extent required by
             law, applicable listing standards, the Company's charter or bylaws,
             or the Company's Corporate Governance Principles.

       4.    The Committee shall determine whether or not each director and each
             prospective director of the Company is independent,  disinterested,
             or a  non-employee  director under the standards  applicable to the
             committees  on which  such  director is  serving or  may serve. The
             Committee may survey any and all of the  directors and  prospective
             directors to determine any matter  or circumstance that would cause
             the person not to qualify as an  independent, disinterested or non-
             employee director under  applicable standards.  The Committee shall
             report   to  the   Board  the  existence  of  any  such  matter  or
             circumstance.

       5.    The Committee shall oversee the evaluation of the management of the
             Company at such  times as it deems appropriate,  but not  less than
             annually, and provide the evaluation  together with recommendations
             to the Board.

       6.    Each year, the Committee shall:

             o     review the advisability or need for any changes in the number
                   and composition of the Board;

             o     review  the  advisability  or  need  for  any  changes in the
                   number, charters or titles of committees of the Board;

             o     recommend to the  Board the  composition of each committee of
                   the Board  and,  if in  its  discretion  it so  desires,  the
                   individual  director   to  serve  as   chairperson  of   each
                   committee;

             o     procure that the  chairperson of each committee report to the
                   Board  about  his/her  committee's  annual  evaluation of its
                   performance and evaluation of its charter;

             o     receive comments from all  directors and  report to the Board
                   an  assessment of  the Board's  performance,  to be discussed
                   with  the full  Board  following the end of each fiscal year;
                   and

             o     review and reassess  the adequacy of the Corporate Governance
                   Principles of the Company and  recommend any proposed changes
                   to the Board for approval.

       7.    The Committee  shall have the  sole authority to  retain, amend the
             engagement  with,  and  terminate  any search  firm to  be  used to
             identify  director  candidates.   The  Committee  shall  have  sole
             authority to  approve the  search firm's  fees and  other retention
             terms and shall have authority to cause the Company to pay the fees
             and expenses of the search firm.

       8.    The Committee shall have authority to obtain advice  and assistance
             from internal or  external legal,  accounting or other advisors, to
             approve the  fees and  expenses of  such outside  advisors,  and to
             cause the Company to  pay the  fees and  expenses  of such  outside
             advisors.

       9.    The Committee shall have  authority to form  and delegate authority
             to subcommittees when it deems appropriate.

IV     Procedures

       1.    Meetings. The Committee shall meet at the call  of its chairperson,
             two or more members of the Committee, or the Chairman of the Board.
             Meetings may,  at the discretion of the Committee,  include members
             of the  Company's  management,  independent  consultants,  and such


                                       37





             other persons as the  Committee or its  chairperson may  determine.
             The Committee may meet in person, by telephone conference  call, or
             in any other manner in  which the Board  is permitted to meet under
             law or the Company's bylaws.

       2.    Quorum and Approval.  A majority  of the  members of  the Committee
             shall  constitute  a  quorum.   The  Committee  shall  act  on  the
             affirmative  vote of a majority of members  present at a meeting at
             which a quorum is present. The Committee may  also act by unanimous
             written consent in lieu of a meeting.

       3.    Rules.   Except  as   expressly  provided  in   this  Charter,  the
             certificate  of  incorporation or  by-laws  of the Company,  or the
             Corporate Governance  Principles of the Company,  the Committee may
             determine  additional rules and  procedures to  govern it or any of
             its subcommittees,  including  designation  of  a  chairperson  pro
             tempore in the  absence  of the  chairperson  and  designation of a
             secretary of the Committee or any meeting thereof.

       4.    Reports.  The  Committee  shall make  regular reports to the Board,
             directly or through the chairperson.

       5.    Review of Charter.  Each year  the Committee  shall review the need
             for changes in  this Charter and  recommend any proposed changes to
             the Board for approval.

       6.    Performance Review.  Each  year  the  Committee  shall  review  and
             evaluate its own performance and shall  submit itself to the review
             and evaluation of the Board.

       7.    Fees. Each member of the Committee shall be paid the fee set by the
             Board for his or  her services as a member of,  or chairperson  of,
             the Committee.



                                       38






                                     Annex D


                        PIONEER NATURAL RESOURCES COMPANY

                       CODE OF BUSINESS CONDUCT AND ETHICS

                                    SECTION I
                                  INTRODUCTION


The purpose of this Code of Business Conduct and Ethics ("Code") is to state the
principles of business  conduct that the Board of Directors  requires of each of
its members as well as all officers and employees of Pioneer  Natural  Resources
Company,  and  each of its  subsidiaries  (the  "Company").  The  Code  outlines
specific  guidelines for conduct in situations  that affect all employees.  Such
principles  and  guidelines  are to be  adhered  to at all  times  and under all
circumstances and are applicable to all directors, officers and employees of the
Company.  Unless  specifically  addressed herein, when the term "Employee(s)" is
used herein it also applies to all of the officers and directors of the Company.

All  employees of the Company are expected to be guided by the basic  principles
of honesty and fairness in the conduct of the Company's  affairs.  Employees are
encouraged to ask questions and voice  concerns about the meaning or application
of the Company's  business  practices and compliance  with  applicable  laws and
regulations.  Enforcement of sound ethical  standards is the  responsibility  of
every director,  officer and employee of the Company.  Employees are expected to
report suspected  violations of Company policies and internal control procedures
or to make complaints  regarding  accounting,  internal  accounting  controls or
accounting matters or to express concerns regarding  questionable  accounting or
auditing  matters  promptly  to the  Company's  General  Counsel  or  the  Audit
Committee of the Board of  Directors.  With the  "Compliance  Line," the Company
provides  employees  with a  confidential  means to  report  any such  suspected
violations  or  complaints.  No action will be taken or  threatened  against any
employee  for making a complaint or  disclosing  information  to the  employee's
supervisor or management  personnel  unless (1) the complaint or disclosure  was
made with the  knowledge  that it was false or with  willful  disregard  for its
truth or accuracy,  or (2) the  employee was involved in the improper  activity.
The Compliance Line number is 1-800-750-4972.

The Board of Directors of the Company is charged with enforcing  compliance with
this Code to ensure that the Company conducts itself in a manner consistent with
its  obligations  to society  and its  stockholders.  The Board has  established
procedures  to monitor  compliance.  Violations by any employee will subject the
employee  to  disciplinary   action,  and  in  certain  cases,   discharge  from
employment.

Due to the seriousness of this subject,  any employee,  officer or director with
any doubts about the  applicability  of this Code should talk to the appropriate
level of  higher  management  or the  Company's  General  Counsel.  This Code of
Business  Conduct and Ethics  supersedes and replaces the Statement of Policy on
Standards  of Business  Conduct of the Company and that  Statement  of Policy on
Ethics and  Conflicts of Interest of Parker & Parsley  Petroleum  Company  dated
January 1, 1993 and policies of a similar  nature of the corporate  predecessors
of the Company.

                                   SECTION II
               ETHICS AND COMPLIANCE WITH ALL LAWS AND REGULATIONS

    POLICY: The Company will conduct its business in accordance with the highest
    ethical and legal  standards.  The Company  is  committed  to  being a  good
    corporate citizen of all states and  countries  in which  it does  business.
    Employees  must  understand  that the  Company  does  care  how  results are
    obtained, not just that they are obtained. The Company supports any employee
    who passes  up  an  opportunity  or  advantage  which  would  sacrifice  the
    Company's ethical standards. Therefore, it continues to be the policy of the
    Company to  comply  in all  respects with  all laws and regulations that are
    applicable to  its business,  at all government  levels in the United States


                                       39





    and abroad.  If a law conflicts with a policy in this Code,  the law must be
    followed; however, if local custom or policy conflicts with this Code,  this
    Code must be followed.  Any employee who does not  adhere to these standards
    is acting outside the scope  of employment  or agency.  The Company  expects
    employees to  report  suspected  violations  of laws or Company  policies to
    Company management.

Other sections of the Code deal with specific laws and  regulations  and outline
general  guidelines for compliance  with such laws and  regulations due to their
particular importance to the Company's business activities. The special emphasis
on these  laws  does  not  limit  the  general  admonition  to  comply  with all
applicable laws, regulations and judicial decrees of the United States (federal,
state and local) and of other countries where the Company transacts business.

The Company  expects candor from its officers and managers and  compliance  with
Company policies and rules. Because attempts by officers and managers to conceal
information from higher management or the auditors might be seen by subordinates
as a signal that Company  policies  and rules can be ignored when  inconvenient,
officers and managers will be strictly accountable.

No  officer  or  employee  should at any time  take any  action on behalf of the
Company which he or she knows or reasonably should know would violate any law or
regulation.  The Company's  interests are not served by unethical  practices and
activities even if the practices and acts are not in technical  violation of the
law.  An  officer or  employee  having  even the  slightest  question  as to the
validity  of any action  proposed  to be taken on behalf of the  Company  should
immediately contact the Company's General Counsel for advice.

                                   SECTION III
                              CONFLICTS OF INTEREST

    POLICY:  It is the  policy of the  Company that all directors,  officers and
    other employees  avoid any conflict between their personal interests and the
    interests of the Company in  dealing with suppliers, customers, competitors,
    organizations and third parties.  Employees,  officers and directors may not
    use their positions,  Company assets, or  confidential information gained in
    connection  with  their  employment or  involvement  with  the  Company  for
    personal gain or for the benefit of a family member or any outside party.

It is not feasible to specify all activities that may give rise to a conflict of
interest;  however,  they generally occur in the areas of personal  investments,
affiliations,   business  gifts  and  confidential  information.  The  following
examples will serve as a non-exclusive  guide to the  circumstances  or types of
activities  that could cause  conflicts  and  therefore  are  prohibited  unless
specifically   approved  in  writing  by  the  Company  through  the  employee's
supervisor or officer in charge of the employee's department,  or in the case of
an officer,  the Management  Committee officer to whom such officer reports; and
then with such  approval  forwarded  for review to a) the  Management  Committee
officer who has responsibility for the employee's or officer's department and b)
the Company's General Counsel:

(1)  Ownership, by an employee or any immediate family member (spouse,  parents,
     children and their spouses) or associate,  of any financial interest in any
     non-public  enterprise  that does business with, or is a competitor of, the
     Company.

(2)  Ownership,  by an employee or immediate family member, of 2% or more of the
     outstanding  shares of any publicly owned  corporation  regularly traded on
     any open  market  that does  business  with,  or is a  competitor  of,  the
     Company.

(3)  Participation in any outside activity that competes  directly or indirectly
     with  the  Company  or that  interferes  with  (or has  the  appearance  of
     interfering with) the performance of the employee's duties to the Company.

(4)  Service  as a  director,  consultant  or  employee  of an  enterprise  that
     conducts  or seeks to  conduct  business  with the  Company.  This does not
     include appointment to a position in an outside company as a representative
     of the Company.

                                       40





(5)  Acceptance by an employee or close relative or associate of gifts of a size
     that may tend to influence the employee's  business decisions or compromise
     the employee's  independent  judgment. In addition to excessive size gifts,
     prohibited  situations  requiring  Company approval before  acceptance also
     include, but are not limited to: loans, excessive entertainment, discounts,
     hunting or fishing trips, golf outings, tickets to shows or athletic games,
     services,  sponsorships,  contributions  or other  special  favors from any
     individual,  enterprise  or  organization  that  does or is  seeking  to do
     business  with,  or is a competitor  of, the Company.  Acceptance  of minor
     gifts  such  as  meals  and   refreshments   for   immediate   consumption,
     entertainment,  routine  promotional sales gifts and other items of nominal
     value are not prohibited by this provision  provided such  acceptance is in
     keeping with good business ethics, gives no appearance of impropriety, does
     not result in special or favored  treatment  for the donor and no effort is
     made to conceal  the full facts by the  recipient  or the donor and it does
     not create or imply a business  obligation  or otherwise  create a conflict
     between the  employee's  personal  interests and the best  interests of the
     Company.

(6)  Ownership,  by an employee,  immediate  family member,  or associate,  of a
     contractual or real property interest (including royalty, working interest,
     net  profits  interest,  etc.) in any  property  owned or  operated  by the
     Company or any of its  subsidiaries  or affiliates,  other than an interest
     acquired through a Company sponsored program.

(7)  Disclosure  or use by an  employee  of  information  that is  confidential,
     proprietary or  privileged,  for the benefit or gain of the employee or any
     other person.  The  obligation  to preserve  confidential,  proprietary  or
     privileged  information  continues even after employment or agency with the
     Company ends.

(8)  Use of Company  opportunities  discovered or learned through use of Company
     information or one's Company  position for personal gain or the gain of any
     other person.

In the event that an  employee  senses  possible  involvement  in a conflict  of
interest situation,  the employee should immediately report the matter to his or
her   supervisor,   making  a  full   disclosure  of  all  pertinent  facts  and
circumstances.  The  Company  will  develop  a form  for  use by  employees  for
reporting such matters. Because each case may involve special circumstances,  it
will be judged on its own merits  considering the duties of the employee and the
relative  significance  of  the  factors  involved.   Directors  and  Management
Committee  officers,  while not  required to get  pre-approval  for the types of
activities  referenced  in  paragraphs  (1) through (8),  above,  must  promptly
disclose  any such  conflicts or potential  conflicts to the  Company's  General
Counsel for periodic review by the Company's Audit Committee and Board.

Failure  by any  employee  or officer to seek  approval  for,  or in the case of
directors and Management Committee officers,  to disclose, an activity which, in
the opinion of management or, in the case of directors and Management  Committee
officers,  the Board, would result, or has resulted,  in a conflict of interest,
may result in disciplinary action up to and including discharge from employment.
In addition,  the Board will take  appropriate  disciplinary  action against any
Management  Committee officers and directors whose disclosures reveal activities
which,  when reviewed by the Audit  Committee and Board,  are determined to have
been a conflict of interest.

                                   SECTION IV
                        HUMAN RESOURCES, EQUAL EMPLOYMENT
                         OPPORTUNITY AND NON-HARASSMENT

      POLICY:  The Company recognizes that its greatest assets are its employees
      and realizes that  the proper utilization,  development and  protection of
      the Company's human resources are the key to continued success.  It is the
      policy  of  the   Company  to  provide  equal  employment  opportunity  in
      conformance with all  applicable laws  and regulations  to individuals who
      are  qualified to  perform  job  requirements,  regardless of  their race,
      color,  sex,  religion, national origin, age, physical or mental handicap,
      or veteran's status. Equal opportunity shall be provided in all aspects of
      the employment relationship.

      Further,  the  Company  expressly  prohibits any form of unlawful employee
      harassment  based on  race,  color,  sex,  religion, national origin, age,
      physical or mental handicap, or veteran status. The Company's objective is

                                       41





      to provide a work environment that encourages  mutual employee respect and
      working relationships free of harassment. Harassment, whether it occurs in
      the workplace or at a Company-sponsored function,  will not be  tolerated.
      Forms of harassment include,  but are not limited to  unwelcome  verbal or
      physical  advances  and sexually,  racially  or  otherwise  derogatory  or
      discriminatory materials, statements or remarks.  All employees, including
      supervisors and managers, will be subject to disciplinary action up to and
      including termination for any act of harassment.  Supervisors and managers
      have particular  responsibility for  maintaining a  work  environment free
      from discrimination and  harassment and  for the prompt identification and
      resolution of any problem areas regarding such issues.

Employees of Pioneer Natural Resources USA, Inc. ("Pioneer") should refer to the
"Policy Guides for Employees" for the procedures implementing and enforcing this
policy with regard to Pioneer.

                                    SECTION V
                    RELATIONSHIP WITH GOVERNMENTAL OFFICIALS

      POLICY:  No funds or  assets of  the Company  shall be  paid,  directly or
      indirectly,  in violation of  applicable law,  to any government official,
      either inside or outside of the United States,  or to any enterprise owned
      or controlled by any government official.

A great deal of public attention has been directed to questionable payments that
some  corporations  have made to government  officials  both in this country and
abroad.  The purpose of this Code is to  reiterate  the  Company's  longstanding
policy in the clearest  possible terms. The success of the Company's  operations
depends,  to a great  degree,  upon  its  ability  to build  relationships  with
government officials and employees based on honesty and integrity.

Payments,  regardless of amount, or gifts of entertainment (of more than nominal
value) to  government  officials  and other  government  personnel of the United
States and other domestic or foreign  jurisdictions,  regardless of motive,  are
viewed by the Company as improper and are not permitted.  In addition, laws such
as the Foreign Corrupt Practices Act, which is a U.S. law prohibiting bribery of
foreign  officials,  provide for serious  criminal and civil  penalties  against
corporations,  employees,  officers and directors.  The relationships of Company
personnel  with public  officials  should in all respects be of such an open and
forthright  nature that the  integrity  and  reputation of the officials and the
Company will not be impugned in the event the full details of the  relationship,
including any gifts or entertainment, become a matter of public record.

                                   SECTION VI
                               COMMERCIAL BRIBERY

      POLICY:  No funds  or assets  of the  Company  shall  be  paid,  loaned or
      otherwise  disbursed  as bribes,  kickbacks or other payments  designed to
      influence or compromise  the conduct of the  recipient,  and no officer or
      employee of  the Company  shall  accept  any funds  or  other  assets  for
      assisting and obtaining  business or securing special concessions from the
      Company or any other person or legal entity.

The Company  considers one of its most valuable  assets to be its reputation and
integrity.  It seeks stable and profitable  business  relationships  -- based on
integrity  -- with its  employees,  customers,  suppliers  and all others  whose
activities  touch  upon its own.  To that end,  Company's  directors,  officers,
employees and agents should  conduct their  business  affairs so as to guard and
protect the Company's reputation.

By way of  illustrating  the  strict  ethical  standards  that  every  director,
officer,  employee and agent is expected to maintain,  the following  conduct is
expressly prohibited:

(1)  Payment or receipt of money,  gifts, loans or other favors that may tend to
     influence  business  decisions  with  respect to the Company or  compromise
     independent judgment.

(2)  Payment or receipt of rebates or kickbacks for  obtaining  business for the
     Company.

                                       42





(3)  Payment of bribes to  government  officials,  such as tax  authorities,  to
     obtain favorable rulings on issues of local law for the Company.

Any other activities of this nature that,  though not enumerated,  could degrade
the Company's reputation and integrity are also prohibited.

These  guidelines are not intended to prevent the Company from paying normal and
reasonable  commissions  to  its  agents,  from  taking  normal  prompt  payment
discounts, and also from giving or receiving gifts or services that comport with
normal and customary  social  amenities  and that do not tend to compromise  the
conduct of the recipient.

Should an officer,  employee or agent be  requested  to make or accept a gift or
payment that is prohibited  by this Code,  disclosure of the request and all the
surrounding  circumstances  should be made immediately to his or her supervisor.
If any  situation  arises in which the propriety of such request is in the least
manner questionable,  the General Counsel of the Company should be consulted for
resolution of the question.

                                   SECTION VII
               PROPER RECORDING OF FUNDS, ASSETS AND DISBURSEMENTS

      POLICY: All funds, assets, receipts and disbursements of the Company shall
      be properly recorded on the books of the Company.

To assure that this policy is implemented, it is specifically understood that:

(1)  No funds or accounts shall  be established or  maintained for purposes that
are not fully and accurately reflected on the books and records of the Company.

(2)  No funds or other assets shall be received or disbursed without being fully
and accurately reflected on the books and records of the Company.

(3)  No false, fictitious or  intentionally misleading  entries shall be made on
the  books  or  records  of the  Company,  and no false  or  misleading  reports
pertaining to the Company or its operations shall be issued.

Any officer or employee  having  knowledge  of any act or  circumstance  that is
prohibited by this policy shall  immediately  report the matter to the Company's
General Counsel and Audit Committee.

                                  SECTION VIII
                           SUBSIDIARIES AND AFFILIATES

      POLICY: All personnel of the Company who act as Company representatives on
      the boards of directors, or in other management positions, of subsidiaries
      or affiliates of the Company are expected to cast their votes, exert their
      influence and  otherwise conduct  their activities  in a manner which will
      promote the observance of  the policies in  this Code by such subsidiaries
      and affiliates, subject to their fiduciary obligations, if any, associated
      with the nature of their representative positions.

                                   SECTION IX
                    ENVIRONMENTAL AND TOXIC SUBSTANCES POLICY

      POLICY: The Company has long been committed to the goal of safe, efficient
      and environmentally  sound business  practices and operations and has been
      supportive of  endeavors  aimed at  preserving our environmental heritage.
      Such commitment is  entirely consistent  with the Company's economic goals
      and is  in the  best  interests of its  shareholders.  The  Company  shall
      conduct  its business in a manner that protects employees, others involved
      in its  operations and  the  public  from  unacceptable risks due to toxic
      substances  which are  produced or  used  in the  Company's business.  The
      Company is  committed to  continuous efforts  to identify and manage risks
      associated with  such substances.  In  addition,  in  the  conduct  of its


                                       43





      business  it  is  the  Company's  policy to  comply  with  all  applicable
      environmental  laws and  regulations  and  not to  condone any  failure by
      Company employees to comply with such laws and regulations.

The Company is committed to complying with all applicable  laws and  regulations
relating to protection  of the  environment  as well as to using all  reasonable
efforts to operate in a manner that  preserves  the  environment  and  conserves
natural resources.  Numerous federal, state and local laws and regulations exist
which involve the protection of the environment.  These laws and regulations are
diverse and far-reaching. Violation can produce severe consequences not only for
the Company but for any employee involved in a violation.  In the conduct of the
Company's  operations  and  business,  each  officer and employee is required to
comply with all applicable  laws and  regulations  relating to the protection of
the  environment.  Any employee  having  questions about  environmental  laws or
regulations should consult the office of the Company's General Counsel.

                                    SECTION X
                                     SAFETY

      POLICY:  It is the Company's policy to conduct its operations and business
      in a manner that  protects the safety of employees, others involved in its
      operations  and  the  public.  The  Company  will  strive to  prevent  all
      accidents,   injuries  and  occupational  illnesses  through   the  active
      participation  of every  employee.  The Company  is committed to complying
      with  all  applicable  laws  and to  continuous  efforts  to  identify and
      eliminate or manage safety risks associated with its activities.

The Company is committed to complying with all applicable  laws and  regulations
relating to maintenance of a safe workplace. Each employee should perform his or
her duties in a manner that will not endanger the employee or others.  Employees
are required to use such safety equipment as may be required by law,  regulation
or by Company manuals, handbooks and guidelines.  Employees are also required to
use all  reasonable  efforts to maintain the work area in such condition as will
not pose a safety hazard for  themselves or others.  Employees are encouraged to
identify  ways to improve  safety  and to bring  these to the  attention  of the
supervisors.

                                   SECTION XI
                                 ANTITRUST LAWS

      POLICY:  It is in the best interest of the Company, as well as that of its
      stockholders  and employees  to have vigorous  and fair  competition.  The
      antitrust  laws  were  conceived and  enacted  as a  means for  helping to
      preserve the free enterprise system by promoting healthy  competition.  It
      is the  policy  of  the  Company  that  all its  directors,  officers  and
      employees  shall,  in carrying out their duties to the Company,  comply in
      all respects with the spirit as well as the letter of such antitrust laws,
      domestic and foreign.  In circumstances where there is a  legitimate doubt
      as to the proper  interpretation of the law it is required that the matter
      be referred through appropriate  channels to the Company's General Counsel
      for advice.

In the  United  States  the  body of laws  that  are  generally  referred  to as
antitrust  laws is a collection of statutes that have been enacted over a period
of many years both by the federal government and the various states.  These laws
prohibit business  practices that constitute  unreasonable  restraints of trade,
unfair trade practices and other anti-competitive  activities.  Depending on the
circumstances, certain prohibited practices include the following:

(1)  Creation of a monopoly or attempts to create a monopoly;

(2)  Agreements among competitors to increase,  decrease or stabilize prices; to
     divide territories or markets; to allocate customers;  to limit the quality
     of products or to limit the production of products; and

(3)  Discrimination in price and other predatory trade practices.

                                       44





Any failure to comply with  antitrust  laws can have far reaching  affects,  not
only on the Company, but also upon each employee involved in the violation.  Any
employee  having any question  concerning  compliance with antitrust laws should
seek advice from the office of the Company's General Counsel.

No  employee  of the  Company  has any  authority  whatsoever  to  engage in any
activity  that  could  constitute  a  violation  of the  antitrust  laws and all
employees are specifically  directed not to do so. This direction is without any
qualification, limitation or restriction whatsoever.

                                   SECTION XII
                             ELECTION CAMPAIGN LAWS

      POLICY:  No funds or  assets of the  Company shall be  contributed to  any
      political  party or organization,  or to any  individual who  either holds
      public office  or is  a candidate  for public  office,  except  where such
      contribution  is  permitted by  applicable  law  and has  previously  been
      authorized  by the  Board of  Directors  or  Management  Committee  of the
      Company.

Federal  and  state  laws  restrict  the  contribution  of  corporate  funds  to
candidates for federal, state or local office or to committees formed to support
such candidates or advocate their political causes.  The Company requires strict
compliance with these laws.

The following are examples of activities for  candidates or committees  that are
prohibited by these laws and by the policy of the Company:

(1)  Contributions  by an employee that are reimbursed  through expense accounts
     or in other ways;

(2)  Purchases  by the Company of tickets for  special  dinners or fund  raising
     events;

(3)  Contributions  in kind,  such as: a) the loaning of  employees to political
     parties; or, b) the use of Company assets in political campaigns; and

(4)  Indirect  contributions  by the Company  through  suppliers,  customers  or
     agents.

It is acknowledged that political contributions by corporations are permitted by
the  laws of some  states  and in  some  foreign  countries  they  are not  only
permitted  but  expected.  Even under these  circumstances,  no Company funds or
assets shall be used for political purposes without the express authorization of
the Board of Directors or Management Committee of the Company.

Any  officer or  employee  of the  Company  who fails to comply with the Company
policy regarding  corporation  contributions and expenditures in connection with
political activities shall be subject to appropriate  disciplinary action, which
may include  discharge.  However,  the  Company's  policy does not  prohibit any
officer or employee  from  engaging in  political  activities  in an  individual
capacity (not as a representative of the Company) on his or her own time and own
expense,  or from making  political  contributions  from personal funds, or from
expressing personal views with respect to legislative or political matters.

                                  SECTION XIII
                                 ADMINISTRATION

Reinforcement  of  sound  ethical  standards  is  the  responsibility  of  every
director, officer and employee of the Company.  Nevertheless, all violations and
reasonable  suspicions of violations of this Code shall be promptly  reported to
the employee's  department  manager or supervisor,  or the office of the General
Counsel,  by the individual  with  knowledge of such a violation.  This Code, as
amended from  time-to-time,  may be supplemented or implemented by more detailed
procedures,  guidelines,  manuals  and  handbooks  issued by the  Company or its
subsidiaries  or  affiliates.  The  Company  reserves  the  right,  in its  sole
discretion, to amend, modify, interpret,  supercede or rescind any or all of the
policies  described in this Code, with or without notice.  Any amendment to this
Code shall be made only by the Company's  Board of Directors or the  appropriate
committee thereof. If an amendment to this Code is made,  appropriate disclosure
will  be  made  in  accordance  with  legal   requirements  and  stock  exchange
regulations.

                                       45





Every director, officer or employee elected or employed after the effective date
of this Code may be required to sign a written  affirmation  acknowledging  that
they have read and  understood  this Code and will comply  with the Code,  which
affirmation  may be separate or part of another  affirmation  or  acknowledgment
relating to employee manuals, handbooks, benefit packages, etc., supplied to new
directors,  officers or employees.  This signed affirmation shall be retained on
file in the Human Resources Department.

All  employees,  directors  and officers  shall be required from time to time to
sign a written  affirmation  stating they (1) have read this Code and understand
its contents,  (2) have not violated this Code, (3) will continue to comply with
the Code and (4) have no knowledge of any violation of this policy which has not
been previously  communicated  to their  supervisor or the office of the General
Counsel or the Audit Committee of the Board of Directors.

Waivers of any provision of this Code shall be made only by the Audit  Committee
of the Board of Directors, or the full Board. Persons seeking a waiver should be
prepared to disclose all pertinent facts and circumstances, respond to inquiries
for additional information, explain why the waiver is necessary, appropriate, or
in the best interest of the Company,  and comply with any procedures that may be
required to protect the Company in connection with a waiver. If a waiver of this
Code  is  granted  for  any  officer,  appropriate  disclosure  will  be made in
accordance with legal requirements and stock exchange regulations.

                                   SECTION XIV
                                   CONCLUSION

The  Company,  as a publicly  traded  company,  has certain  obligations  to its
stockholders  as  well as to  society  in  general.  These  obligations  and the
Company's  commitment  to open,  honest,  straightforward  and  ethical  conduct
including full, fair, accurate,  timely and understandable disclosure in reports
and  documents  that the Company  files with,  or submits to, the United  States
Securities and Exchange  Commission and in other public  communications  made by
the Company, warrant the implementation and enforcement of this Code of Business
Conduct and Ethics.  It is quite clear to the Company  that its  reputation  for
honesty  and  integrity  is a direct  result  of the  standards  and acts of its
directors, officers and employees.

The Company,  its stockholders and the general public expect and are entitled to
have the Company conduct itself in a manner  consistent with basic principles of
honesty  and  fairness  and the  principles  set forth in this Code.  Therefore,
violations  by any officer or employee will result in  appropriate  disciplinary
action, including dismissal when necessary.



                                       46





                                     Annex E


                        PIONEER NATURAL RESOURCES COMPANY

                         CORPORATE GOVERNANCE PRINCIPLES


    The mission  of the Board  of Directors  (the  "Board")  of  Pioneer Natural
    Resources Company ("Pioneer" or the "Company") is to be a strategic asset to
    the Company, both  collectively and  as individual directors  ("Directors"),
    measured by  the  contribution  it makes  to the  long-term  success  of the
    Company and the creation of stockholder value.

Governance Principles

The following Principles have been approved by the Board to emphasize its strong
commitment to good corporate governance  practices.  Along with the charters and
key practices of the Board committees,  these Principles are designed to provide
the  framework  for the  governance  of  Pioneer  and to assist the Board in the
performance  of its duties and the exercise of its  responsibilities.  The Board
recognizes  that the issues  involved in  corporate  governance  are dynamic and
iterative  and it will  review  these  Principles  and other  aspects of Pioneer
governance not less than every three years or more often if deemed necessary.

These Principles, as well as the charters of the Board committees, the Company's
Bylaws  and its Code of  Business  Conduct  and  Ethics,  are all  published  on
Pioneer's  corporate  website and are available in print to any  stockholder who
requests them.

1. Role of  Board and  Management.  The  business  and  affairs of  Pioneer  are
conducted and managed by its  employees,  officers and chief  executive  officer
("CEO") under the direction and oversight of the Board, to enhance the long-term
value  of the  Company  for  its  stockholders.  The  Board  is  elected  by and
accountable to the  stockholders  to oversee  management,  to provide  strategic
direction and to assure that the  long-term  interests of the  stockholders  are
being  served.  In carrying out its  responsibilities,  the Board will  exercise
sound,  informed,  and  independent  business  judgment.   Both  the  Board  and
management  recognize that the long-term  interests of stockholders are advanced
by responsibly  addressing and adhering to good corporate governance principles.
The Board also recognizes that to do so requires individual  preparation by each
Director   and  group   deliberation   by  the  Board,   and  that  the  Board's
responsibilities include both decision-making and oversight.

2. Functions of Board.  The Board  schedules a  minimum of four meetings a year,
held quarterly, at which it reviews and discusses presentations by management on
the performance of the Company,  progress towards its goals, its strategic plans
and prospects,  as well as immediate issues confronting  Pioneer. The Board also
holds additional informational sessions each year called periodically by the CEO
as  required to update the Board on  important  operational  and other  material
events.  Except in extenuating  circumstances,  Directors are expected to attend
all scheduled meetings of the Board and of committees on which they serve.

As a part of its  oversight  responsibilities,  among  other  things,  the Board
monitors:

    a. the performance of the Company;

    b. the performance and effectiveness of the CEO and Management;

    c. the  selection,  evaluation,  development  and  compensation  of   senior
       management;

    d. the Company's compliance with legal requirements and ethical standards;

    e. the Company's financial reporting and  disclosure processes and  internal
       controls; and



                                       47





    f.   the Company's processes  for maintaining the integrity of the financial
         statements,  the integrity  of  compliance  with law  and  ethics,  the
         integrity of relationships with partners, working interest owners, land
         and mineral owners and suppliers.

In addition to its general  oversight of  management,  the Board also performs a
number of specific decision making functions, including, among other things:

    a.   reviewing,  approving and monitoring the Company's mission, strategies,
         objectives and policies as developed by Management;

    b.   selecting the CEO;

    c.   evaluating  and  compensating  the  CEO and  overseeing  CEO succession
         planning;

    d.   selecting nominees for Board membership;

    e.   approving material investments or divestitures, strategic transactions,
         and other significant transactions that are not in the  ordinary course
         of the Company's business;

    f.   reviewing, approving and monitoring fundamental  financial and business
         strategies;

    g.   assessing  major  risks  facing the  Company and  reviewing options for
         their mitigation; and

    h.   evaluating the performance of the Board and Committees of the Board.

3. Qualifications.   Directors   should   possess  the   highest  personal   and
professional ethics,  integrity and values, and be committed to representing the
long-term  interests  of the  stockholders.  They also  should  be  intelligent,
inquisitive,  independent  and objective in thought,  have practical  wisdom and
mature  judgment and a  willingness  to gain an  understanding  of Pioneer,  its
competitive  position  in  its  industry  and  its  business  strategy.  Pioneer
endeavors  to have a Board  representing  diverse  experience  at  policy-making
levels with a  complimentary  mix of skills and  experience in areas relevant to
the Company's global activities.

Among other things, the Board expects each Director to:

    a.   understand  Pioneer's  businesses  and the  marketplaces  in which they
         operate;

    b.   review the  materials  provided  in advance of  meetings and  any other
         materials provided to the Board from time to time, and to take the time
         and effort to be fully informed on the materials and issues presented;

    c.   strive for  a collegial  atmosphere  showing  mutual  respect  for  all
         Directors and opinions;

    d.   actively, objectively and  constructively  participate in  meetings and
         the strategic decision-making processes;

    e.   share his or her  perspective,  background,  experience,  knowledge and
         insights as  they  relate  to the  matters  before the  Board  and  its
         committees;

    f.   make decisions  based on  his/her  honest, independent opinion of merit
         and the best long-term interest of Pioneer; and

    g.   be available  when  requested to  advise  the  CEO  and  Management  on
         specific  issues not  requiring  the attention of the  full Board,  but
         where an individual  Director's insights might be helpful to the CEO or
         Management.

Directors must be willing to devote sufficient time to carrying out their duties
and  responsibilities  effectively,  and should be  committed  to serving on the
Board  for an  extended  period of  time.  The  Company  values  the  experience

                                       48





Directors bring from other boards on which they might serve and other activities
in which they  participate,  but recognizes that those boards and activities may
also present  demands on a  Director's  time and  availability  that may present
conflicts or legal  issues,  including  independence  issues.  Directors  should
advise the chairperson of the Nominating and Corporate  Governance Committee and
the CEO before  accepting  membership  on other boards of directors or any Audit
Committee  or other  significant  committee  assignment  on any  other  board of
directors;   or  before   establishing  other  significant   relationships  with
businesses,   institutions,   governmental   units   or   regulatory   entities,
particularly  those that may result in significant  time commitments or a change
in the Director's relationship to the Company.

The  Board  believes  that  individuals  should  limit  the  number of boards of
publicly  traded,  for-profit  corporations on which they serve in order to give
proper attention to their responsibility to each board. As a general policy, the
Board believes that Directors  should limit their service to not more than three
boards of publicly  traded  companies  in addition to that of the  Company,  but
exceptions  to this policy may be made in  appropriate  cases.  Where a Director
seeks to serve on more than three such  boards,  he/she  should  seek and obtain
approval of the Nominating and Corporate  Governance Committee for that service.
At its discretion,  the Nominating and Corporate  Governance Committee may refer
the approval to the full Board.

Members of Pioneer's Audit Committee who seek to serve on the Audit Committee of
another  public  company  where that service will result in more than two public
company Audit  Committee  memberships  simultaneously,  should seek and obtain a
determination  from the  Company's  Board in advance of accepting  such service,
that such  service will not impair the ability of such  Director to  effectively
serve on Pioneer's Audit Committee.

All memberships on other boards by the CEO will be considered and decided by the
full Board  based  upon the  Nominating  and  Corporate  Governance  Committee's
recommendation.  As a general  rule,  the  Board  will  discourage  the CEO from
serving on more than two boards in addition to the Board of the Company.

Regardless of whether  Nominating  and Corporate  Governance  Committee or Board
approval is required for service on other boards, a Director seeking to serve on
another board should notify the Nominating and Corporate  Governance  Committee,
the CEO and the General Counsel in advance of accepting such service, and should
defer final  acceptance  of such a position  until advised by the CEO or General
Counsel that such service does not present legal or other  serious  problems for
Pioneer.  The General  Counsel  will be expected to  coordinate  resolution  (if
possible) or  communication  of any legal or business issues as expeditiously as
possible.

The Board does not believe that arbitrary term limits on Directors'  service are
appropriate,  nor does it believe that Directors should expect to be renominated
annually   until   they  reach  the   mandatory   retirement   age.   The  Board
self-evaluation process will be an important determinant for Board tenure.

Directors  of the  Company  shall  not  be  nominated,  elected,  or  stand  for
re-election  after  reaching  the age of 75, or if they will reach the age of 75
during the first year of such a term.  Directors  who reach the age of 75 during
their term of office as a Director  must  immediately  resign or be removed from
the Board as a mandatory retirement.

Unless the Board affirmatively  determines  otherwise,  any member of management
who is a Director  will retire from the Board at the same time he or she retires
from active service with the Company, and will resign from the Board at the same
time he or she ceases employment with the Company for any reason.

If an  outside  Director's  principal  position,  status  or  employment  should
substantially  change,  the Director shall submit his or her  resignation to the
Lead Director.  The Nominating and Corporate  Governance  Committee shall decide
whether to accept the resignation.

4. Independence of Directors.  While the Board  recognizes that Directors who do
not meet the New York Stock Exchange ("NYSE")  independence  standards also make
valuable  contributions  to the  Board  and to the  Company  by  reason of their
experience  and wisdom,  it is the Board's goal that at least  two-thirds of the
Directors will be independent  under the NYSE's  guidelines and those additional
guidelines adopted by the Board.


                                       49





The full Board will make affirmative  determinations of the independence of each
Director.  Such  determinations  shall be made using the standards and processes
approved and adopted from time to time by the full Board.  Such  determinations,
as well as the standards and processes applied in making them, will be disclosed
to stockholders in accordance with the requirements of the NYSE.

The Board has established  the following  guidelines to assist it in determining
Director independence:

    a.   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;

    b.   the Director,  or any  member of  the  Director's  family, has not been
         employed by the Company in the last five years;

    c.   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;

    d.   the Director, or any member of the Director's family, has not been part
         of an interlocking directorate in the last five years;

    e.   the Director,  or any member of the Director's family, does not receive
         non-director compensation from the Company;

    f.   the Director does not own more than 4.9% of the Company's shares;

    g.   the Director  does not  serve on  more than  three other public company
         boards; and

    h.   the Director does not serve on the board of another E&P company.

The following eight Directors are  independent  under the foregoing  guidelines:
James R. Baroffio,  Edison C. Buchanan, R. Hartwell Gardner,  James L. Houghton,
Jerry P. Jones, Linda K. Lawson, Charles E. Ramsey, Jr., and Robert A. Solberg.

The  Company  will not make  any  personal  loans or  extensions  of  credit  to
Directors  or  executive  officers.  No  Director  or family  member may provide
personal services for compensation to the Company.

5. Size of Board and Selection Process. Approximately one-third of the Directors
are elected each year by the  stockholders at the annual meeting of stockholders
in accordance with their classification.

Nominees  for  Director  will be  selected  on the  basis  of  their  integrity,
experience, achievements, judgment, intelligence, personal character, ability to
make independent  analytical  inquiries,  willingness to devote adequate time to
Board duties,  and likelihood that he/she will be able to serve on the Board for
a sustained  period.  In connection with the selection of nominees for Director,
due  consideration  will be given to the Board's overall balance of diversity of
perspectives,   backgrounds  and  experiences.   The  Nominating  and  Corporate
Governance Committee will consider any suggestions offered by other Directors or
stockholders  with  respect to  potential  Directors.  Stockholders  may propose
nominees for consideration by the Nominating and Corporate  Governance Committee
by  submitting  the names and  supporting  information  to:  Secretary,  Pioneer
Natural Resources Company, 5205 N. O'Connor Blvd., Suite 1400, Irving, TX 75039.

The Board proposes a slate of nominees to the  stockholders  for election to the
Board.  The Board also  determines the number of Directors on the Board provided
that there are at least three.  Between annual stockholder  meetings,  the Board
may elect  Directors to serve until the next annual  meeting for  electing  that
class of Directors.

The Board as a whole will be responsible for nominating individuals for election
to the Board by the  Stockholders,  and for filling  vacancies on the Board that
may occur  between  annual  meetings of the  Stockholders.  The  Nominating  and
Corporate Governance  Committee will be responsible for identifying,  screening,
and recommending candidates to the entire Board.

                                       50






6. Board Committees.  The Board currently has  three standing Committees - Audit
Committee,  Compensation  Committee  and  Nominating  and  Corporate  Governance
Committee.  The Board may,  from time to time,  expand  the  number of  standing
committees  or  form ad hoc  committees.  Each of the  Audit,  Compensation  and
Nominating  and Corporate  Governance  committees  will be composed  entirely of
independent  Directors  and will have a written  charter that  complies with the
requirements  of the NYSE.  The  current  charters of these  committees  will be
published on the Pioneer website,  and will be mailed to stockholders on written
request.  The committee  chairs report the  highlights of their  meetings to the
full Board following each meeting of the respective  committees.  The committees
normally hold meetings in conjunction with the full Board.

The size,  membership,  and chairs of each  committee  will be determined by the
Board and will  comply  with NYSE and legal  requirements.  The  membership  and
chairs of the  standing  committees  may be  rotated  from time to time to allow
Directors to serve on various  committees over time and to promote continuity of
membership  and  leadership  on each  committee.  The  Nominating  and Corporate
Governance  Committee will provide  recommendations  to the Board  regarding the
size, membership,  chairs and rotation of committees.  The Chairman of the Board
("Chairman")  and CEO may participate in any committee  meeting except when such
participation would present a conflict of interest or, in the case of a Chairman
who is also the CEO, when the meeting is a non-management  executive  session of
the committee or Board.

7. Independence of Committee Members.  In  addition  to the  requirement  that a
two-thirds majority of the Board satisfy the independence standards discussed in
section 4 above,  members of the Audit Committee must also satisfy an additional
NYSE independence requirement. Specifically, they may not directly or indirectly
receive any compensation from Pioneer other than their Directors'  compensation.
As a matter of policy, the Board will also apply this additional  requirement to
members of the  Compensation  Committee  and to members  of the  Nominating  and
Corporate Governance Committee.

8. Meetings of Non-Employee Directors.  To ensure free and  open discussion  and
communication  among the non-employee  Directors,  these Directors shall meet in
executive  session at least twice a year with no members of management  present.
The  non-employee  Directors may meet without  management  present at such other
times as determined by the Lead  Director,  or as requested by any  non-employee
Director.  The Lead  Director,  who is also  chairperson  of the  Nominating and
Corporate Governance Committee,  shall preside at the executive sessions, unless
the non-management Directors determine otherwise. These executive sessions shall
also constitute meetings of the Nominating and Corporate  Governance  Committee,
with  any  non-management  Directors  who are  not  members  of  such  committee
attending by invitation.

9. Self-Evaluation.  The Board conducts an  annual self-evaluation to assess its
effectiveness.  The  self-evaluation  is  conducted  on  the  basis of  criteria
developed by the Nominating and Corporate  Governance  Committee and approved by
the  Board.  Each of the  Board's  committees  also  conducts  an  annual  self-
evaluation.  Additionally,  the ability of individual Directors to contribute to
the Board is assessed in connection with the  evaluations  and the  renomination
process.

10. Setting Board Agenda.  The Chairman,  CEO  (if not  the Chairman),  the Lead
Director and Secretary establish the agenda for each Board meeting,  taking into
account suggestions of other Directors.  Directors are encouraged to suggest the
inclusion of agenda items or  revisions  to meeting  materials;  the Chairman is
expected  from  time to time to ask  Directors  for their  suggestions  on these
items.  Each Director is free to raise at any Board  meetings items that are not
on the agenda for that meeting.

Proposed  agendas and  materials for meetings are  generally  delivered  well in
advance of each  Board and  committee  meeting.  In  certain  cases,  due to the
sensitive  nature of a matter,  presentations  are provided only at the Board or
committee meeting.  Directors are expected to review and devote appropriate time
to studying Board materials.  In addition,  the CEO periodically  distributes to
all Board members items of topical interest  relating to Pioneer,  its operating
environment, and the markets that it serves.

11. Ethics and  Conflicts of  Interest.  Pioneer's Board  has adopted a  Code of
Business Conduct and Ethics applicable to Directors,  executive officers and all
Pioneer employees.  The Board expects Pioneer Directors, as well as officers and
employees,  to act  ethically  at all times and to  acknowledge  annually  their


                                       51





adherence to the policies  comprising the Company's Code of Business Conduct and
Ethics,  which is posted on the Company's website.  The General Counsel's office
and the Audit Committee oversee  implementation and compliance with the Code. If
a continuing conflict exists and cannot be resolved, the Director should resign.
All Directors will recuse  themselves from any discussion or decision  affecting
their personal,  business or professional interests. The Board shall resolve any
conflict of interest  question  involving  a Director,  the CEO or an  executive
officer,  and the CEO and General Counsel shall resolve any conflict of interest
issue involving any other officer of the Company.

12. Reporting of  Concerns to  Non-Employee  Directors  or the  Audit Committee.
Anyone  who has a  concern  about  Pioneer's  conduct,  or about  the  Company's
accounting,  internal accounting  controls or auditing matters,  may communicate
that concern directly to the Company's General Counsel, Lead Director, or to the
Audit Committee.  Such communications may be confidential or anonymous,  and may
be e-mailed, submitted in writing, or reported by phone to special addresses and
a toll-free  phone number that is published on the Company's  website.  All such
concerns will be forwarded to the  appropriate  Directors for their review,  and
will be  simultaneously  reviewed and addressed by Pioneer's  General  Counsel's
office in the same way that other  concerns are  addressed  by the Company.  The
status of all outstanding  concerns will be reported to the Board on a quarterly
basis. The Board or the Audit Committee may direct special treatment,  including
the retention of outside advisors or counsel, for any concern addressed to them.
The Company is prohibited from  retaliating or taking any adverse action against
anyone for raising or helping to resolve an integrity concern.

Pioneer will publish on its website and in its proxy statement a mailing address
and an e-mail address for communications  with the chairperson of the Nominating
and Corporate  Governance Committee or the non-management  Directors as a group.
In addition,  Pioneer  will publish on its website and in its proxy  statement a
procedure  for  communicating  with the Audit  Committee  regarding  accounting,
internal accounting controls or auditing matters.

13. Compensation  of   Board.   The  Compensation   Committee  shall  have   the
responsibility  for  recommending  to the Board  compensation  and  benefits for
non-employee  Directors.  In discharging this duty, the  Compensation  Committee
shall  be  guided  by three  goals:  alignment  of the  long-term  interests  of
stockholders  with the  Directors'  interests  and  compensation;  fairly paying
Directors for work required in a company of Pioneer's size and scope; and making
the structure of the compensation simple,  transparent and easy for stockholders
to understand.  The  Compensation  Committee shall annually review  non-employee
Director compensation and benefits.

14. Succession Plan. The Board shall approve and maintain a succession plan for
the CEO and  certain  senior  executives.  To  assist  the  Board,  the CEO will
annually  provide the Board with an assessment  of senior  officers and of their
potential  to succeed  him or her.  The CEO will also  provide the Board with an
assessment  of  persons  considered   potential  successors  to  certain  senior
officers.

15. Annual Compensation Review of Senior Management. The non-employee Directors,
in a session chaired by the Lead Director, will undertake a formal evaluation of
the CEO annually. The evaluation should be based on objective criteria including
but  not  limited  to  the   performance   of  Pioneer's   businesses   and  the
accomplishment  of long-term and strategic  objectives.  The  chairperson of the
Nominating and Corporate Governance Committee shall be responsible for reviewing
the evaluation with the CEO. The  Compensation  Committee will then consider the
CEO's  performance  as determined  in the  evaluation  before  setting the CEO's
salary,  bonus and other  incentive and equity  compensation.  The  Compensation
Committee  shall  also  annually  approve  the  compensation  structure  for the
Company's  officers,  and  shall  consider  the  performance  of  the  Company's
executive officers before approving their salary,  bonus and other incentive and
equity compensation.

16. Access to Senior Management.  Directors have complete and open access to the
Company's  management.  In addition,  the Company's executive officers routinely
attend Board and committee meetings. The Board encourages its executive officers
to bring other  officers and managers into Board or committee  meetings or other
scheduled  events from time to time to provide  additional  insight into matters
being  considered or to expose the Board to individuals  with high potential for
significant  leadership roles in the Company.  Additionally,  Directors may from
time  to  time  meet  individually  with  members  of  management.  Non-employee
Directors  are  encouraged  to contact  senior  managers of the Company  without


                                       52





executive  officers or the CEO  present.  Board  members use judgment to be sure
that this contact is not  distracting to the business  operation of the Company.
Such contact, if in writing, is copied to the CEO.

17. Access to Independent Advisors.  The Board and its committees shall have the
right  at any  time to  retain  independent  outside  financial,  legal or other
advisors.

18. Director Orientation.  The General  Counsel and  Secretary's office shall be
responsible for providing an orientation for new Directors, and for periodically
providing  materials  or briefing  sessions for all  Directors on subjects  that
would assist them in discharging their duties.  Each new Director shall,  within
six months of election to the Board,  spend time at corporate  headquarters  for
personal briefing by the executive  officers and CEO on the Company's  strategic
plans,  its  financial  statements,  and its key  policies  and  practices.  New
Directors also receive a comprehensive package of orientation materials.

19. Continuing  Education.   Directors  are  encouraged  to  take  advantage  of
continuing  education  opportunities  that will enhance their ability to fulfill
their responsibilities.  To facilitate this participation, Pioneer will endeavor
to make the  Directors  aware of Director  education  programs  and will pay the
expenses of any Director  attending  approved Director  education  programs.  In
addition,  Directors  are  expected  to  keep  informed  about  Pioneer  and its
activities and the industry  conditions  affecting  independent  exploration and
production companies generally.

20. Stock Ownership.  The Board  believes  that it  is  important  to  align the
interests of Directors with those of the  stockholders and for Directors to hold
equity  ownership  positions  in  the  Company  that  are  meaningful  in  their
individual  circumstances.  Directors  are required to own Pioneer  common stock
having a value of at least three times their annual  retainer.  Included in this
total are common stock and restricted common stock, but not stock options.  Each
Director is given three years from the date of initial  appointment  or election
to reach this ownership level. The Nominating and Corporate Governance Committee
shall  adopt and  periodically  review a policy  with  respect to minimum  share
ownership  requirements for Directors.  Additionally,  the Board believes that a
significant portion of Directors'  compensation should be made available to them
in stock,  stock options or other forms of compensation  that correlate with the
market value of the Company.

21. Evaluation of Corporate Governance Principles.  The Nominating and Corporate
Governance Committee will review Pioneer's Corporate Governance  Principles from
time to  time  as  developments  or  circumstances  make  review  of  particular
Principles  appropriate.  The entire  Corporate  Governance  Principles  will be
reviewed  by the  Committee  not less  frequently  than every three  years.  The
Nominating and Corporate  Governance Committee will report to the full Board for
its consideration and adoption any  recommendations  for additions or amendments
to the Principles,  as well as the process and results of the full review of the
Principles conducted every three years.

22. Confidentiality.  The  proceedings and  deliberations of  the  Board and its
committees   shall  be   confidential.   Each   Director   shall   maintain  the
confidentiality of information received in connection with his or her service as
a Director.



                                       53






                        PIONEER NATURAL RESOURCES COMPANY
                          5205 North O'Connor Boulevard
                                   Suite 1400
                               Irving, Texas 75039




          IMPORTANT NOTICE REGARDING DELIVERY OF SHAREHOLDER DOCUMENTS




     The Securities  and  Exchange  Commission  has  enacted  rules  that  allow
multiple  shareholder  accounts with the same last name and the same address the
convenience of receiving a single annual report, proxy statement,  prospectus or
other information  statement.  This is known as "householding."  Each registered
shareholder will continue to receive a separate proxy card for voting.

     Your participation  in  householding will  reduce the  volume of  duplicate
information  received at your household and can result in savings to the Company
related to printing and mailing costs.

     Please note that  if you do not  respond by  calling the Company's transfer
agent,  Continental  Stock  Transfer  and  Trust  Company  ("Continental"),   at
1-888-509-5586, or by writing to Continental at 17 Battery Place, 8th Floor, New
York,  NY 10004,  you will be  deemed to have  consented  to  householding,  and
householding  will begin 60 days after the mailing of this notice.  Your implied
consent to  householding  will remain in effect until you revoke it. If you want
to revoke  householding,  you should  contact  Continental by one of the methods
described  above, and separate,  individual  mailings will resume within 30 days
after you revoke your consent to householding.



                                    By Order of the Board of Directors


                                     /s/ Mark L.  Withrow
                                    ----------------------------------------
                                    Mark L. Withrow, Secretary

Irving, Texas
April 7, 2003


                                       54





PROXY BY MAIL                           Please mark your votes like this  [ X ]

THIS PROXY WILL BE VOTED AS DIRECTED,  OR IF NO DIRECTION IS INDICATED,  WILL BE
VOTED "FOR" THE  PROPOSALS.  THIS PROXY IS  SOLICITED  ON BEHALF OF 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

Nominees:                               FOR         WITHHELD
                                        ALL         FOR ALL

01   Jerry P. Jones
02   Charles E. Ramsey, Jr.            [   ]         [   ]
03   Robert A. Solberg

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

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

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 ELECTRONICALLY PLEASE READ THE INSTRUCTIONS BELOW

                      COMPANY NUMBER:

                      PROXY NUMBER:

                      ACCOUNT NUMBER:

Signature _____________________ Signature _______________________  Date _______

NOTE: 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.

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

                                VOTE BY INTERNET

                        PIONEER NATURAL RESOURCES COMPANY

-    You can vote your shares electronically through the Internet.
-    This eliminates the need to return the proxy card.
-    Your  electronic  vote  authorizes the named proxies to vote your shares in
     the same  manner as if you marked,  signed,  dated and  returned  the proxy
     card.

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


                                       55





TO VOTE YOUR PROXY BY INTERNET
www.continentalstock.com

Have your  proxy card in hand when you  access  the above  website.  You will be
prompted to enter the company number,  proxy number and account number to create
an electronic ballot. Follow the prompts to vote your shares.

                  PLEASE DO NOT RETURN THE ABOVE CARD IF VOTED
                                 ELECTRONICALLY

SECURITY CODE:

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 L.  Withrow as
proxies, with power to act without the other and with power of substitution, and
hereby  authorizes  them to represent and vote, as designated on the other side,
all the shares of stock of Pioneer  Natural  Resources  Company  standing in the
name of the undersigned  with all powers which the undersigned  would possess if
present at the Annual Meeting of  Stockholders of the Company to be held May 15,
2003 or any adjournment thereof.

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

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

                              FOLD AND DETACH HERE


                    Access to the Company 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 select a Personal  Identification Number
or  "PIN"  to  secure  access  to  personal  shareholder  records.  With  a PIN,
shareholders can change  addresses,  receive  electronic forms, and view account
transaction history.

To access this  service,  visit the website  listed  above.  From the home page,
select "ContinentaLink Full Services". From there, you can either "View a Sample
Account"  or you can  sign-up  (choose  "First  Time  Visitor"  then "New Member
Sign-up").  If you choose to sign-up, enter your taxpayer  identification number
or social security number as your ID Number.  You personal  Security Code can be
found on the reverse side of this card in the bottom left corner. The PIN number
you choose for your account  should be 4 to 12 characters  and can be letters or
numbers.  Re-enter  the  same  PIN in the  PIN  Verification  field.  Additional
guidance is provided on the website.  Your PIN will be activated overnight,  and
you will be able to access your shareholder record the following day.


                                       56





          PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING 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  shareholders  of  Pioneer  Natural  Resources  Company to be held on
Thursday,  May 15,  2003,  I direct  you to  execute a proxy as  indicated  with
respect to all shares of common  stock of the  Company to which I have the right
to give voting  directions  under the 401(k) and matching plan. I understand you
will hold these directions strictly confidential.

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

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

                              FOLD AND DETACH HERE

PROXY BY MAIL         Please mark your votes like this  [ X ]

THIS PROXY WILL BE VOTED AS DIRECTED,  OR IF NO DIRECTION IS INDICATED,  WILL BE
VOTED "FOR" THE  PROPOSALS.  THIS PROXY IS  SOLICITED  ON BEHALF OF 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

Nominees:                               FOR         WITHHELD
                                        ALL         FOR ALL

01   Jerry P. Jones
02   Charles E. Ramsey, Jr.            [   ]         [   ]
03   Robert A. Solberg

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

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

ITEM 2 - RATIFICATION OF SELECTION OF INDEPENDENT ACCOUNTANTS

         [  ]   FOR           [  ]  AGAINST           [  ]  ABSTAIN

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

IF YOU WISH TO VOTE ELECTRONICALLY PLEASE READ THE INSTRUCTIONS BELOW

                      COMPANY NUMBER:

                      PROXY NUMBER:

                      ACCOUNT NUMBER:

Signature _____________________ Signature ______________________  Date _______

NOTE: 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.

                                       57





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

                                VOTE BY INTERNET

                        PIONEER NATURAL RESOURCES COMPANY

-    You can vote your shares electronically through the Internet.
-    This eliminates the need to return the proxy card.
-    Your  electronic vote authorizes the named proxy to vote your shares in the
     same manner as if you marked, signed, dated and returned the proxy card.

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


TO VOTE YOUR PROXY BY INTERNET
www.continentalstock.com

Have your  proxy card in hand when you  access  the above  website.  You will be
prompted to enter the company number,  proxy number and account number to create
an electronic ballot. Follow the prompts to vote your shares.

                  PLEASE DO NOT RETURN THE ABOVE CARD IF VOTED
                                 ELECTRONICALLY




                                       58