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OIL PRICE RISK DERIVATIVES (Details)
Dec. 31, 2015
$ / Unit
bbl
From 01/01/2016 To 06/30/2016 [Member] | Call Contract [Member]  
Quantity | bbl 350
Contract Price | $ / Unit 66.80
From 01/01/2016 To 06/30/2016 [Member] | Put Contract [Member]  
Quantity | bbl 350
Contract Price | $ / Unit 57.50
From 07/01/2016 To 12/31/2016 [Member] | Call Contract [Member]  
Quantity | bbl 300
Contract Price | $ / Unit 65.25
From 07/01/2016 To 12/31/2016 [Member] | Put Contract [Member]  
Quantity | bbl 300
Contract Price | $ / Unit 50.00