CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Details) - Customer concentration risk	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage	24.00%	0.00%
Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage	15.00%	16.00%
Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	8.00%	11.00%
Revenues | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage	7.00%	7.00%
Revenues | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	36.00%
Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	14.00%
Receivables | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	0.00%
Receivables | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage	17.00%	3.00%
Receivables | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	25.00%	9.00%
Receivables | Customer 4
Revenue, Major Customer [Line Items]
Concentration percentage	18.00%	9.00%
Receivables | Customer 5
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	19.00%
Receivables | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	25.00%
Black Oil | Revenues | Customer 1
Revenue, Major Customer [Line Items]
Concentration percentage	100.00%	0.00%
Black Oil | Revenues | Customer 2
Revenue, Major Customer [Line Items]
Concentration percentage	54.00%	22.00%
Black Oil | Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	0.00%
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%	100.00%
Black Oil | Revenues | Customer 6
Revenue, Major Customer [Line Items]
Concentration percentage	0.00%	100.00%
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	46.00%	78.00%
Refining | Revenues | Customer 3
Revenue, Major Customer [Line Items]
Concentration percentage	100.00%	100.00%
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	0.00%	0.00%
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	0.00%	0.00%