Partnership And Nature Of Operations (Narrative) (Details)
Jun. 30, 2013
Limited Partner Interest [Member] | Pioneer Natural Resources Co [Member]
 
Noncontrolling Interest [Line Items]  
Ownership Percentage by Parent (As a Percent) 52.40%
Pioneer Natural Resources Co [Member]
 
Noncontrolling Interest [Line Items]  
Omnibus Agreement, Number of Counties Within the Southeast Region of New Mexico that Area of Operations is Limited To 8