Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Intangible assets and goodwill [abstract] | |||
| Goodwill |
47,762,000
USD
|
47,762,000
USD
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
26,000
USD
|
26,000
USD
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
121,000
USD
|
135,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
35,109,000
USD
|
55,629,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Current materials and supplies to be consumed in production process or rendering services |
22,819,000
USD
|
15,520,000
USD
|
— |
| Current inventories arising from extractive activities [abstract] | |||
| Current crude oil |
3,411,000
USD
|
4,284,000
USD
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
32,670,000
USD
|
24,532,000
USD
|
5,674,000
USD
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale |
-
USD
|
29,015,000
USD
|
— |
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
133,000
USD
|
-
USD
|
— |
| Miscellaneous assets [abstract] | |||
| Investments other than investments accounted for using equity method |
342,000
USD
|
-
USD
|
— |
| Classes of other provisions [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Non-current provision for decommissioning, restoration and rehabilitation costs |
123,654,000
USD
|
140,839,000
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Non-current portion of non-current loans received | — | — | — |
| Non-current portion of non-current secured bank loans received |
58,382,000
USD
|
77,689,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Current loans received and current portion of non-current loans received | — | — | — |
| Current secured bank loans received and current portion of non-current secured bank loans received |
20,497,000
USD
|
14,714,000
USD
|
— |
| Other current borrowings and current portion of other non-current borrowings |
632,000
USD
|
4,507,000
USD
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
9,087,000
USD
|
12,707,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
6,956,000
USD
|
8,302,000
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
-
USD
|
2,489,000
USD
|
— |
| Other current liabilities |
4,899,000
USD
|
10,623,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
723,000
USD
|
721,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
301,149,000
USD
|
311,694,000
USD
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
121,834,000
USD
|
122,324,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
539,345,000
USD
|
584,667,000
USD
|
— |
| Assets less current liabilities [abstract] |