Derivative Instruments (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Gain Recognized On Settled Commodity Contracts	$ 1,612,000	$ 4,657,200
Fair Value Asset/(Liability)	418,300
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	0
Affiliate Balances, Offsetting Derivative Assets, Gross Amounts Of Recognized Assets	1,497,800	2,582,700
Affiliate Balances, Offsetting Derivative Liabilities, Gross Amounts Of Recognized Liabilities	344,200
Accumulated Other Comprehensive Income (Loss), Net of Tax	24,400	2,396,400
Distribution to Managing General Partner	0	54,600
Net production revenues	5,092,400	13,685,000
Net Deferred Gain To Be Reclassified Into Net Income Over The Next Twelve Months	55,400
Net Deferred Gain To Be Reclassified Into Net Income In Later Periods	(31,000)
Net Deferred Gain [Member] | Net Receivable from Monetized Derivative Instruments [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	24,400
Unrealized Gains [Member] | Net Receivable from Monetized Derivative Instruments [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		(46,800)
Accumulated Other Comprehensive Income (Loss), Prior Periods, Net Of Tax		(21,800)
Noncash Distribution [Member] | Net Receivable from Monetized Derivative Instruments [Member]
Derivative [Line Items]
Distribution to Managing General Partner		54,600
Accounts receivable monetized gains-affiliate [Member]
Derivative [Line Items]
Affiliate Balances, Offsetting Derivative Assets, Gross Amounts Of Recognized Assets	851,800	1,562,200
Long-term accounts receivable monetized gains-affiliate [Member]
Derivative [Line Items]
Affiliate Balances, Offsetting Derivative Assets, Gross Amounts Of Recognized Assets	170,300	1,020,500
Put premiums payable-affiliate [Member]
Derivative [Line Items]
Affiliate Balances, Offsetting Derivative Liabilities, Gross Amounts Of Recognized Liabilities	71,000
Long-Term Put Premiums Payable-Affiliate [Member]
Derivative [Line Items]
Affiliate Balances, Offsetting Derivative Liabilities, Gross Amounts Of Recognized Liabilities	$ 215,800