UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION


                             WASHINGTON, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT




     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

         Date of Report (Date of earliest event reported): July 27, 2001




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



             DELAWARE                     1-13245              75-2702753
----------------------------------      -----------      ---------------------
(State or other jurisdiction of         Commission          (I.R.S. Employer
incorporation or organization)          File Number      Identification Number)



5205 N. O'CONNOR BLVD., SUITE 1400, IRVING, TEXAS                75039
-------------------------------------------------              ----------
    (Address of principal executive offices)                   (Zip code)



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



                                 Not applicable
              (Former name, former address and former fiscal year,
                          if changed since last report)







                        PIONEER NATURAL RESOURCES COMPANY

                                TABLE OF CONTENTS


                                                                         Page

Item 7.  Financial Statements, Pro Forma Financial Information
         and Exhibits:

         (c)  Exhibits...............................................      3

Item 9.  Regulation FD Disclosure....................................      3

Signatures...........................................................      4

Exhibit Index........................................................      5




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                        PIONEER NATURAL RESOURCES COMPANY


ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

         (c)   Exhibits

               99.1   Press Release dated July 27, 2001

ITEM 9.  REGULATION FD DISCLOSURE

       On July 27, 2001, Pioneer Natural Resources Company issued a press
release reporting its financial and operating results for the three and six
month periods ended June 30, 2001. The press release is attached hereto as
Exhibit 99.1 and incorporated by reference herein.





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                        PIONEER NATURAL RESOURCES COMPANY

                               S I G N A T U R E S

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                               PIONEER NATURAL RESOURCES COMPANY




Date:   July 31, 2001          By:    /s/ RICH DEALY
                                    ------------------------------------------
                                    Rich Dealy
                                    Vice President and Chief Accounting Officer




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                        PIONEER NATURAL RESOURCES COMPANY

                                  EXHIBIT INDEX


Exhibit No.       Description

   99.1*          Press Release dated July 27, 2001


-------------
* filed herewith



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