Stock Trading History of Pioneer Natural Resources Usa Inc

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Pioneer Natural Resources Usa Inc since year 2005. The trader's CIK number is 846920. At the time of this reporting, Pioneer Natural Resources Usa Inc is the Other of Pioneer Southwest Energy Partners L.p. . (stock ticker symbol PSE). See this page for all insider trading activities at Pioneer Southwest Energy Partners L.p. .

Stock purchases, sales, and option exercises reported by insider *Pioneer Natural Resources Usa Inc* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-06	PSE	Pioneer Southwest Energy Partners L.p.	Purchase	20,521,200	19.00	389,902,800

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Pioneer Natural Resources Usa Inc (Other of Pioneer Southwest Energy Partners L.p. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.