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v3.22.2

Note 1 - Organization and Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 USD ($) $ / item | Mar. 31, 2022 $ / item | Dec. 31, 2021 USD ($) $ / bbl | Sep. 30, 2021 $ / bbl | Jun. 30, 2021 $ / bbl | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jun. 20, 2026 | Feb. 25, 2021
Oil and Gas, Average Sale Price (in USD per Barrel of Oil) | 113 | 100 | 79 | 73 | 69 |  |  |  |  |  |
Payments for Abandonment Funding |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 |  |
Abandonment Funding Payment Due | $ 4,300 |  |  |  |  | $ 4,300 |  |  |  |  |
Value Added Tax Receivable | $ 10,600 |  | $ 9,600 |  |  | $ 10,600 | $ 9,600 |  |  |  |
Foreign Currency Exchange Rate, Translation | 627.6 |  | 578.2 |  |  | 627.6 | 578.2 |  |  |  |
Other Receivables | $ 10,700 |  |  |  |  | $ 10,700 |  |  |  |  |
Other Accrued Liabilities, Current | 19,100 |  |  |  |  | 19,100 |  |  |  |  |
Prepayments for Fixed Assets | $ 6,000 |  |  |  |  | $ 6,000 |  |  |  |  |
Government of Gabon [Member] | Prior Production Sharing Contract Through September 17, 2018 [Member] |  |  |  |  |  |  |  |  |  |  |
Monthly Royalty Rate, Based on Production at the Published Price | 13.00% |  |  |  |  | 13.00% |  |  |  |  |
Etame Marine Block [Member] | Sasol Gabon S.A. [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  | 27.80%
Office Equipment [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  |  | 3 years |  |  |  |  |
Office Equipment [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  |  | 5 years |  |  |  |  |
Leasehold Improvements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  |  | 5 years |  |  |  |  |
Leasehold Improvements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  |  |  |  |  | 7 years |  |  |  |  |
Crude Oil [Member] |  |  |  |  |  |  |  |  |  |  |
Energy Related Inventory, Total | $ 12,600 |  |  |  |  | $ 12,600 |  |  |  |  |
Energy Related Inventory, Unsold | 1,300 |  |  |  |  | 1,300 |  |  |  |  |
Purchase Commitment [Member] |  |  |  |  |  |  |  |  |  |  |
Number of Contracts Entered Into |  |  |  |  |  |  | 2 |  |  |  |
Vaalco Energy Inc. and Other Etame Marin Block Owners [Member] |  |  |  |  |  |  |  |  |  |  |
Value Added Tax Receivable | $ 17,400 |  | $ 14,500 |  |  | $ 17,400 | $ 14,500 |  |  |  |
Vaalco Energy Inc. and Other Etame Marin Block Owners [Member] | Prior Production Sharing Contract Through September 17, 2018 [Member] |  |  |  |  |  |  |  |  |  |  |
Working Interest Ownership, Percentage | 7.50% |  |  |  |  | 7.50% |  |  |  |  |
Vaalco Energy Inc. and Other Etame Marin Block Owners [Member] | Prior Production Sharing Contract Through September 17, 2018 [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |
Working Interest Ownership, Percentage |  |  |  |  |  |  |  |  |  | 10.00% |

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