Natural Gas And Oil Producing Activities (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Natural Gas And Oil Producing Activities (Unaudited) [Abstract]

Changes In Proved Reserve Quantities [Table Text Block]

	Gas (Mcf)	Oil (Bbls)	Liquid (Bbls)
Balance, December 31, 2010	30,908,800	48,300	85,100
Revisions(1)	(2,369,800)	(7,700)	5,100
Production	(3,120,000)	(6,500)	(8,500)
Balance, December 31, 2011	25,419,000	34,100	81,700
Revisions (1) (2)	(4,711,400)	(11,200)	(20,500)
Production	(2,241,700)	(2,400)	(3,600)
Balance, December 31, 2012	18,465,900	20,500	57,600

Capitalized Costs Relating to Oil and Gas Producing Activities [Table Text Block]

	Years Ended December 31,
	2012	2011
Natural gas and oil properties:
Leasehold interest	$                              1,055,800	$                               1,055,800
Wells and related equipment	132,283,700	132,257,800
Accumulated depletion, accretion and impairment	(106,738,200)	(48,919,500)
Net capitalized costs	$                              26,601,300	$                               84,394,100

Results of Operations for Oil and Gas Producing Activities [Table Text Block]

	Years Ended December 31,
	2012	2011
Revenues	$      8,179,700	$      17,972,300
Production costs	(3,087,300)	(4,287,300)
Depletion and amortization	(7,784,600)	(10,042,400)
Long-lived asset impairment	(48,973,500)	(3,221,300)
	$  (51,665,700)	$            421,300

Standardized Measure Of Future Cash Flows [Table Text Block]

	Years Ended December 31,
	2012	2011
Future cash inflows	$      57,590,400	$   118,761,300
Future production costs	(26,403,200)	(45,507,500)
Future development costs	(769,700)	—
Future net cash flows	30,417,500	73,253,800
Less 10% annual discount for estimated timing of cash flows	(14,918,600)	(36,907,600)
Standardized measure of discounted future net cash flows	$      15,498,900	$      36,346,200