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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	Disposition	2011-02-14	200	$98.60	640,604	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.60	640,404	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.61	640,204	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.61	640,004	No	4	S	Direct
Common Stock	Disposition	2011-02-14	500	$98.62	639,504	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.63	639,304	No	4	S	Direct
Common Stock	Disposition	2011-02-14	300	$98.63	639,004	No	4	S	Direct
Common Stock	Disposition	2011-02-14	298	$98.64	638,706	No	4	S	Direct
Common Stock	Disposition	2011-02-14	400	$98.65	638,306	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.65	638,106	No	4	S	Direct
Common Stock	Disposition	2011-02-14	100	$98.66	638,006	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.67	637,806	No	4	S	Direct
Common Stock	Disposition	2011-02-14	300	$98.67	637,506	No	4	S	Direct
Common Stock	Disposition	2011-02-14	145	$98.67	637,361	No	4	S	Direct
Common Stock	Disposition	2011-02-14	400	$98.68	636,961	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.68	636,761	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.69	636,561	No	4	S	Direct
Common Stock	Disposition	2011-02-14	100	$98.69	636,461	No	4	S	Direct
Common Stock	Disposition	2011-02-14	200	$98.70	636,261	No	4	S	Direct
Common Stock	Acquisiton	2011-02-15	25,704	$0.00	661,965	No	4	A	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
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	A	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)	Acquisiton	2011-02-15	32,098	$0.00	32,098	$98.69

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
32,098	2014-02-15	2021-02-15	No	4	A	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	22,086	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