SEGMENT REPORTING (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Revenues	$ 28,461,930	$ 39,262,584	$ 67,022,978	$ 126,066,634
Income (loss) from operations	(586,024)	(2,498,920)	(8,971,662)	(11,625,755)
Operating segments | Black Oil
Segment Reporting Information [Line Items]
Revenues	22,907,235	27,632,744	52,877,119	86,885,254
Income (loss) from operations	(404,396)	(3,942,438)	(8,199,842)	(14,429,753)
Operating segments | Refining & Marketing
Segment Reporting Information [Line Items]
Revenues	4,436,111	8,752,135	9,986,047	28,466,144
Income (loss) from operations	173,121	(216,654)	(55,847)	623,594
Operating segments | Recovery
Segment Reporting Information [Line Items]
Revenues	1,118,584	2,877,705	4,159,812	10,715,236
Income (loss) from operations	$ (354,749)	$ 1,660,172	$ (715,973)	$ 2,180,404