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- 10-K Annual report
- 10 PXD 12/08 10-K Exh. 10.15G
- 10 PXD 12/08 10-K Exh 10.18
- 10 PXD 12/08 10-K Exh 51G
- 10 EX-10
- 12 PXD 12/08 10-K Exh 12.1
- 21 PXD 12/08 10-K Exh 21.1
- 23 PXD 12/08 10-K Exh 23.1
- 23 PXD 12/08 10-K Exh 23.2
- 31 PXD 12/08 10-K Exh 31.1
- 31 PXD 12/08 10-K Exh 31.2
- 32 PXD 12/08 10-K Exh 32.1
- 32 PXD 12/08 10-K Exh 32.2
EXHIBIT 32.1
CERTIFICATION OF
CHIEF EXECUTIVE OFFICER
OF PIONEER NATURAL RESOURCES COMPANY
PURSUANT TO 18 U.S.C. § 1350
I, Scott D. Sheffield, Chairman and Chief Executive Officer of Pioneer Natural Resources Company (the "Company"), hereby certify that the accompanying Annual Report on Form 10-K for the year ended December 31, 2008 and filed with the Securities and Exchange Commission pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section.
I further certify that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
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| /s/ Scott D. Sheffield |
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| Name: | Scott D. Sheffield, Chairman of the Board |
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| and Chief Executive Officer |
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| Date: | February 24, 2009 |
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