Organization and Basis of Presentation (Details 2)	12 Months Ended
	Dec. 31, 2012 item	Dec. 31, 2011 item
Going Concern
Number of productive wells sold in the Cole Ranch Properties		8
Significant producing properties
Number of significant producing properties expected to account for over 90% of future Partnership revenues	2
Minimum
Significant producing properties
Percentage of future Partnership revenues expected to be accounted for by two significant producing properties	90.00%
Oil and gas producing property one
Significant producing properties
Estimated remaining economic reserve life of significant producing property	11 months
Oil and gas producing property two
Significant producing properties
Estimated remaining economic reserve life of significant producing property	23 months