XML 35 R9.htm IDEA: XBRL DOCUMENT v2.4.0.6
Organization And Nature Of Operations
3 Months Ended
Mar. 31, 2012
Organization And Nature Of Operations [Abstract]  
Organization And Nature Of Operations

NOTE A. Organization and Nature of Operations

Pioneer Natural Resources Company ("Pioneer" or the "Company") is a Delaware corporation whose common stock is listed and traded on the New York Stock Exchange. The Company is a large independent oil and gas exploration and production company with continuing operations in the United States.