SEGMENT REPORTING (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 180,720,661	$ 145,499,092
Income (loss) from operations	488,348	(7,056,263)
Total assets	84,160,408	84,305,474
Operating Segments | Black Oil
Segment Reporting Information [Line Items]
Revenues	143,836,981	107,988,551
Income (loss) from operations	3,561,223	(6,511,944)
Total assets	76,540,888	75,709,845
Operating Segments | Refining and Marketing
Segment Reporting Information [Line Items]
Revenues	22,935,482	20,097,325
Income (loss) from operations	(2,250,924)	(1,195,946)
Total assets	1,407,002	3,454,010
Operating Segments | Recovery
Segment Reporting Information [Line Items]
Revenues	13,948,198	17,413,216
Income (loss) from operations	(821,951)	651,627
Total assets	$ 6,212,518	$ 5,141,619