SEGMENT REPORTING (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Segment Reporting Information [Line Items] | ||
| Revenues | $ 41,368,195 | $ 34,770,614 |
| Income (loss) from operations | (560,095) | (2,760,837) |
| Operating segments | Black Oil | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 32,237,246 | 24,804,083 |
| Income (loss) from operations | (302,950) | (2,670,103) |
| Operating segments | Refining & Marketing | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 5,675,241 | 5,394,041 |
| Income (loss) from operations | (343,385) | 15,706 |
| Operating segments | Recovery | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 3,455,708 | 4,572,490 |
| Income (loss) from operations | $ 86,240 | $ (106,440) |