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DERIVATIVE FINANCIAL INSTRUMENTS (Tables) | 12 Months Ended
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Dec. 31, 2019
DERIVATIVE FINANCIAL INSTRUMENTS |
Schedule of put and call prices of those contracts | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Date entered into |  | Barrels per day |  | Put price |  | Call price
2020 contracts | ​ | ​ | ​ | ​ | ​ | ​
04/01/19 | ​ | 1,000 | ​ | 50.00 | ​ | 65.83
04/01/19 | ​ | 1,000 | ​ | 50.00 | ​ | 65.40
11/05/19 | ​ | 1,000 | ​ | 50.00 | ​ | 58.40
11/07/19 | ​ | 1,000 | ​ | 50.00 | ​ | 58.25
11/11/19 | ​ | 1,500 | ​ | 50.00 | ​ | 58.65

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