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Commodity risk management contracts (Tables) | 12 Months Ended
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Dec. 31, 2021
Disclosure Of Commodity risk management contracts [Abstract] |
Schedule of Group's Derivative Contracts | The following table presents the Group’s production hedged during the year ended December 31, 2021 and for the following periods as a consequence of the derivative contracts in force as of December 31, 2021: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Period |  | Reference |  | Type |  | Volume bbl/d |  | Weighted average price US$/bbl
January 1, 2021 - March 31, 2021 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 23,500 | ​ | 38.91 Put 52.72 Call
January 1, 2021 - March 31, 2021 | ​ | VASCONIA(a) | ​ | Zero Premium Collars | ​ | 2,000 | ​ | 35.00 Put 43.01 Call
​ | ​ | ​ | ​ | ​ | ​ | 25,500 | ​ | ​
April 1, 2021 - June 30, 2021 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 25,500 | ​ | 40.61 Put 53.59 Call
​ | ​ | ​ | ​ | ​ | ​ | 25,500 | ​ | ​
July 1, 2021 - September 30, 2021 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 18,000 | ​ | 43.19 Put 60.64 Call
July 1, 2021 - September 30, 2021 | ​ | VASCONIA(a) | ​ | Zero Premium Collars | ​ | 2,000 | ​ | 41.50 Put 68.57 Call
​ | ​ | ​ | ​ | ​ | ​ | 20,000 | ​ | ​
October 1, 2021 - December 31, 2021 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 19,500 | ​ | 43.72 Put 62.65 Call
​ | ​ | ​ | ​ | ​ | ​ | 19,500 | ​ | ​
January 1, 2022 - March 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 14,500 | ​ | 49.10 Put 74.81 Call
​ | ​ | ​ | ​ | ​ | ​ | 14,500 | ​ | ​
April 1, 2022 - June 30, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 12,500 | ​ | 53.35 Put 79.38 Call
​ | ​ | ​ | ​ | ​ | ​ | 12,500 | ​ | ​
July 1, 2022 - September 30, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 10,000 | ​ | 58.23 Put 84.37 Call
​ | ​ | ​ | ​ | ​ | ​ | 10,000 | ​ | ​
October 1, 2022 - December 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 6,000 | ​ | 60.00 Put 86.38 Call
​ | ​ | ​ | ​ | ​ | ​ | 6,000 | ​ | ​
(a) | Vasconia Crude (Ice Brent minus Vasconia Differential)
The following table presents the Group’s derivative contracts agreed after the balance sheet date: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Period |  | Reference |  | Type |  | Volume bbl/d |  | Price US$/bbl
July 1, 2022 - September 30, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 90.50 Call
July 1, 2022 - September 30, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 96.70 Call
October 1, 2022 - December 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 91.40 Call
October 1, 2022 - December 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 99.30 Call
October 1, 2022 - December 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 101.70 Call
October 1, 2022 - December 31, 2022 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 65.00 Put 102.50 Call
January 1, 2023 - March 31, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 103.70 Call
January 1, 2023 - March 31, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 60.00 Put 104.75 Call
January 1, 2023 - March 31, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 65.00 Put 104.90 Call
January 1, 2023 - March 31, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 70.00 Put 102.30 Call
January 1, 2023 - March 31, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 70.00 Put 109.50 Call
April 1, 2023 - June 30, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 65.00 Put 100.75 Call
April 1, 2023 - June 30, 2023 | ​ | ICE BRENT | ​ | Zero Premium Collars | ​ | 1,500 | ​ | 70.00 Put 103.50 Call
Summary of Gain (Loss) on the Commodity Risk Management Contracts | The table below summarizes the gain (loss) on the commodity risk management contracts:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2021 | ​ | 2020 | ​ | 2019
Realized (loss) gain on commodity risk management contracts | ​ | (109,654) | ​ | 21,059 | ​ | 3,888
Unrealized gain (loss) on commodity risk management contracts | ​ | 463 | ​ | (12,978) | ​ | (26,411)
​ | ​ | (109,191) | ​ | 8,081 | ​ | (22,523)

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