SEGMENT REPORTING (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Revenues	$ 24,428,444	$ 49,119,711	$ 38,561,048	$ 86,804,050
Income (loss) from operations	(1,008,167)	(1,718,030)	(8,385,638)	(9,126,835)
Operating segments | Black Oil
Segment Reporting Information [Line Items]
Revenues	19,836,390	34,338,534	29,969,884	59,252,510
Income (loss) from operations	(812,262)	(2,511,824)	(7,795,446)	(10,487,316)
Operating segments | Refining & Marketing
Segment Reporting Information [Line Items]
Revenues	2,923,481	11,447,889	5,549,936	19,714,009
Income (loss) from operations	47,336	703,384	(228,968)	840,249
Operating segments | Recovery
Segment Reporting Information [Line Items]
Revenues	1,668,573	3,333,288	3,041,228	7,837,531
Income (loss) from operations	$ (243,241)	$ 90,410	$ (361,224)	$ 520,232