CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Details) - Customer concentration risk	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015
Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage	19.00%	24.00%
Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage	12.00%	2.00%
Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	9.00%	15.00%
Revenues | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage	8.00%	7.00%
Revenues | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage	1.00%	8.00%
Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	0.00%
Receivables | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage	17.00%	0.00%
Receivables | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage	2.00%	2.00%
Receivables | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	1.00%	17.00%
Receivables | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage	6.00%	18.00%
Receivables | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	25.00%
Receivables | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage	12.00%	0.00%
Black Oil | Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	100.00%
Black Oil | Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	100.00%
Black Oil | Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	54.00%
Black Oil | Revenues | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Black Oil | Revenues | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Black Oil | Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Refining | Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Refining | Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Refining | Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	46.00%
Refining | Revenues | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	100.00%
Refining | Revenues | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	100.00%
Refining | Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage		0.00%	0.00%
Recovery | Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage		100.00%	100.00%