OIL AND NATURAL GAS PROPERTIES (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
OIL AND NATURAL GAS PROPERTIES
Proved properties		$ 923,413,606	$ 758,313,233
Unevaluated properties		225,681,626	275,041,784
Less: accumulated depreciation, depletion, and impairment		(628,102,279)	(328,913,425)
Total oil and natural gas properties, net		520,992,953	$ 704,441,592
Transfer to full cost pool	$ 48,600,000	48,600,000
Percent of proved undeveloped reserves of estimated proved reserves (as a percent)			6.10%
Impairment of oil and natural gas properties		$ 251,558,557	$ 169,150,255	$ 67,311,501