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Asset Retirement Obligations (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Partnership's liability for well plugging and abandonment costs    
Balance, beginning of period $ 1,208,590 $ 1,159,948
Liabilities incurred   502
Accretion expense 12,551 48,140
Balance, end of period $ 1,221,141 $ 1,208,590