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Goodwill (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Nov. 11, 2021
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Goodwill | $ 64,268,000 | $ 40,277,000 |
Impairment loss recognised in profit or loss, goodwill | 0 | $ 0 |
Arcola Energy Limited |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Goodwill | $ 23,991,000 |  | $ 23,991,000

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