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SUPPLEMENTARY INFORMATION FOR OIL AND GAS PRODUCING ACTIVITIES (Details Narrative) - bbl | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Proved developed reserves | 322,887 |  |
Proved developed reserves volume decrease | 231,898 |  |
Reduction of reserves forecast of proved developed | 10,879 |  |
Increase (decrease) of proved reserves | 21,938 |  |
Increase (decrease) of proved reserves | 4,070,520 |  |
Proved Developed and Undeveloped Reserves, Net | 4,309,877 | 4,619,992 | 4,997,305
Non Shareable Oil [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Increase (decrease) of proved reserves | 168,461 |  |
Proved Developed and Undeveloped Reserves, Net | 642,170 |  |
Non Shareable Oil [Member] | Kruh Block Contract [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Increase (decrease) of proved reserves | 234,116 |  |
Crude Oil [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Percentage of revenue from sales | 43.57% | 42.72% |
Crude Oil [Member] | Minimum [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Percentage of revenue from sales |  | 42.72% |
Crude Oil [Member] | Maximum [Member] |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Percentage of revenue from sales | 43.57% |  |

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- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e61797-109447 + Details
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