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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1038357	Pioneer Natural Resources Co	PXD	Crude Petroleum & Natural Gas (1311)	752702753

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1034316	D Scott Sheffield	5205 N. O'Connor Blvd., Suite 200 Irving TX 75039	Chairman & Ceo	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-03-12	20,000	$24.72	637,309	No	4	M	Direct
Common Stock	Disposition	2010-03-12	2,600	$52.18	634,709	No	4	S	Direct
Common Stock	Disposition	2010-03-12	300	$52.20	634,409	No	4	S	Direct
Common Stock	Disposition	2010-03-12	1,200	$52.24	633,209	No	4	S	Direct
Common Stock	Disposition	2010-03-12	500	$52.24	632,709	No	4	S	Direct
Common Stock	Disposition	2010-03-12	200	$52.24	632,509	No	4	S	Direct
Common Stock	Disposition	2010-03-12	100	$52.25	632,409	No	4	S	Direct
Common Stock	Disposition	2010-03-12	2,000	$52.25	630,409	No	4	S	Direct
Common Stock	Disposition	2010-03-12	200	$52.25	630,209	No	4	S	Direct
Common Stock	Disposition	2010-03-12	200	$52.26	630,009	No	4	S	Direct
Common Stock	Disposition	2010-03-12	800	$52.26	629,209	No	4	S	Direct
Common Stock	Disposition	2010-03-12	200	$52.26	629,009	No	4	S	Direct
Common Stock	Disposition	2010-03-12	1,800	$52.26	627,209	No	4	S	Direct
Common Stock	Disposition	2010-03-12	700	$52.27	626,509	No	4	S	Direct
Common Stock	Disposition	2010-03-12	900	$52.27	625,609	No	4	S	Direct
Common Stock	Disposition	2010-03-12	926	$52.28	624,683	No	4	S	Direct
Common Stock	Disposition	2010-03-12	100	$52.29	624,583	No	4	S	Direct
Common Stock	Disposition	2010-03-12	900	$52.30	623,683	No	4	S	Direct
Common Stock	Disposition	2010-03-12	500	$52.32	623,183	No	4	S	Direct
Common Stock	Disposition	2010-03-12	500	$52.37	622,683	No	4	S	Direct
Common Stock	Disposition	2010-03-12	400	$52.40	622,283	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2010-03-12	20,000	$0.00	20,000	$24.72

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2005-08-12	2010-08-12	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	22,133	Indirect	401(k)

Footnotes

Consists of shares beneficially owned as a result of reporting person's ownership of units in the Pioneer Natural Resources USA, Inc. 401(k) Plan