Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS (Details)

v3.19.2
DERIVATIVE FINANCIAL INSTRUMENTS (Details)
Jun. 30, 2019
a
$ / bbl
Commodity Contract  
Barrels per day | a 1,500
Commodity Contract | Put Option  
Put price 50.00
Commodity Contract | Call Option  
Call price 66.00
Commodity Contract A  
Barrels per day | a 500
Commodity Contract A | Put Option  
Put price 50.00
Commodity Contract A | Call Option  
Call price 67.40
Commodity Contract B  
Barrels per day | a 500
Commodity Contract B | Put Option  
Put price 50.00
Commodity Contract B | Call Option  
Call price 67.90
Commodity Contract C  
Barrels per day | a 1,000
Commodity Contract C | Put Option  
Put price 50.00
Commodity Contract C | Call Option  
Call price 68.71
Commodity Contract D  
Barrels per day | a 1,000
Commodity Contract D | Put Option  
Put price 50.00
Commodity Contract D | Call Option  
Call price 69.50
Commodity Contract E  
Barrels per day | a 1,000
Commodity Contract E | Put Option  
Put price 50.00
Commodity Contract E | Call Option  
Call price 70.20
Commodity Contract F  
Barrels per day | a 1,000
Commodity Contract F | Put Option  
Put price 50.00
Commodity Contract F | Call Option  
Call price 65.83
Commodity Contract G  
Barrels per day | a 1,000
Commodity Contract G | Put Option  
Put price 50.00
Commodity Contract G | Call Option  
Call price 65.40