v2.4.0.6
Document and Entity Information
9 Months Ended
Sep. 30, 2010
Oct. 27, 2010
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2010  
Document Fiscal Year Focus 2010  
Document Fiscal Period Focus Q3  
Trading Symbol PXD  
Entity Registrant Name PIONEER NATURAL RESOURCES CO  
Entity Central Index Key 0001038357  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   116,096,190