Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS - Revenues and direct operating costs associated with the acquired properties (Details)

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ACQUISITIONS - Revenues and direct operating costs associated with the acquired properties (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]      
Revenues $ 113,025,138 $ 195,702,831 $ 120,065,361
Oil and natural gas production costs 36,968,873 48,496,225 27,801,989
Oil and natural gas production taxes $ 5,228,090 9,130,379 $ 5,631,093
Acquired properties      
Business Acquisition [Line Items]      
Revenues   105,102,038  
Oil and natural gas production costs   17,037,228  
Oil and natural gas production taxes   4,646,660  
Total direct costs (1)   21,683,888  
Earnings from the Acquired properties   $ 83,418,150