VAALCO Energy, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Note 9 - Crude Oil and Natural Gas Properties and Equipment (Details Textual)

Note 9 - Crude Oil and Natural Gas Properties and Equipment (Details Textual) $ in Thousands					1 Months Ended		3 Months Ended	12 Months Ended			24 Months Ended
	Jun. 20, 2026	Feb. 25, 2021 USD ($)	Sep. 26, 2018 USD ($)	Sep. 25, 2018	Feb. 28, 2023 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020	Sep. 16, 2028	Apr. 30, 2021	Apr. 12, 2021	Feb. 24, 2021	Sep. 17, 2018 USD ($)	Dec. 31, 2012
Increase (Decrease) in Value Added Tax Receivable								$ 5,193	$ 1,593	$ 1,268
Impairment of Oil and Gas Properties								0	0	$ 30,625
Property, Plant and Equipment, Net, Total								495,272	94,324
Deferred Tax Assets, Property, Plant and Equipment								9,299	$ 20,133
Block P Offshore Equatorial Guinea [Member]
Business Acquisition, Percentage of Voting Interests Acquired																	31.00%
Additional Ownership Interest Acquired										12.00%
Asset Acquisition, Percent Interest Acquired										43.00%
Asset Acquisition, Contingent Consideration Arrangements, Range of Outcomes, Value, High										$ 3,100
Etame Marine Block [Member]
Working Interest Ownership, Percentage		58.80%													31.10%
Unproved Oil and Gas Property, Successful Effort Method		$ 2,200
TransGlobe [Member]
Undeveloped Leasehold Value								$ 30,200
Etame Marine Block [Member]
Increase (Decrease) in Working Interest Ownership Percentage		27.80%
Impairment of Oil and Gas Properties							$ 30,600
Property, Plant and Equipment, Net, Total							15,600
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member]
Estimated Costs of Technical Studies						$ 500
Deferred Tax Assets, Property, Plant and Equipment																$ 18,600
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Forecast [Member] \| Etame Marine Block [Member]
Increase (Decrease) in Working Interest Ownership Percentage	1.60%
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Vaalco Energy Inc. and Other Etame Marin Block Owners [Member]
Period of Agreement for Exploitation Areas (Year)				10 years
Entitled Percent for Consortium After Initial Royalty Percentage				80.00%
Working Interest Ownership, Percentage								7.50%
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Vaalco Energy Inc. and Other Etame Marin Block Owners [Member] \| Forecast [Member]
Entitled Percent for Consortium After Initial Royalty Percentage												70.00%
Working Interest Ownership, Percentage	10.00%
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Vaalco Energy Inc. and Other Etame Marin Block Owners [Member]
Number of Wells Drilled											2
Number of Appraisal Wellbores Drilled											2
Number of Technical Studies Required						2
Estimated Costs of Technical Studies						$ 1,500
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Signing Bonus [Member]
Payment of Signing Bonus, Allocated to Proved and Unproved Property			$ 11,800
Increase (Decrease) in Value Added Tax Receivable			8,400
Other Accrued Liabilities, Current			1,700
Capitalized Costs, Unproved Properties																6,700
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Signing Bonus [Member] \| Vaalco Energy Inc. and Other Etame Marin Block Owners [Member]
Payment of Signing Bonus, Allocated to Proved and Unproved Property			35,000
Increase (Decrease) in Value Added Tax Receivable			25,000
Other Accrued Liabilities, Current			$ 5,000
Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Tax Effect [Member]
Capitalized Costs, Unproved Properties																7,100
Production Sharing Contract After September 16, 2028 [Member] \| Signing Bonus [Member]
Contractual Obligation, Total																21,800
Production Sharing Contract After September 16, 2028 [Member] \| Signing Bonus [Member] \| Vaalco Energy Inc. and Other Etame Marin Block Owners [Member]
Contractual Obligation, Total																$ 65,000
Etame Marine Block [Member]
Joint Venture Project, Ownership, Percent				63.575%
Unproved Oil and Gas Property, Successful Effort Method							2,300
Undeveloped Leasehold Value							$ 11,500	$ 13,700
Etame Marine Block [Member] \| Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member]
Number of Exploitation Areas				3
Period of Agreement for Exploitation Areas (Year)				10 years
Number of Contract Extension Periods				2
Production License Agreement Term Extended by Government (Year)				5 years
Etame Marine Block [Member] \| Production Sharing Contract, September 17, 2018 Through September 16, 2028 [Member] \| Forecast [Member]
Increase (Decrease) in Working Interest Ownership Percentage	2.50%
Block P Offshore Equatorial Guinea [Member]
Joint Venture Project, Ownership, Percent														45.90%
Unproved Oil and Gas Property, Successful Effort Method								$ 10,000
Period of Development Area (Year)								25 years
Block P Offshore Equatorial Guinea [Member] \| Subsequent Event [Member]
Joint Venture Project, Ownership, Percent					60.00%
Asset Acquisition, Contingent Consideration Arrangements, Range of Outcomes, Value, High					$ 6,800
Joint Venture Project, Additional Working Interest Percentage					14.10%
Block P Offshore Equatorial Guinea [Member] \| Crown Energy [Member]
Working Interest Ownership, Percentage													5.00%