Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Property Plant And Equipment [Line Items]
Natural gas and oil properties	$ 305,512,600	$ 305,512,600
Accumulated depletion and impairment	(282,525,200)	(282,079,000)
Oil and gas properties, net	22,987,400	23,433,600
Leasehold Interests
Property Plant And Equipment [Line Items]
Natural gas and oil properties	5,310,200	5,310,200
Wells and related equipment
Property Plant And Equipment [Line Items]
Natural gas and oil properties	$ 300,202,400	$ 300,202,400