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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Mar. 07, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-32167    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 76-0274813    
Entity Address, Address Line One 2500 CityWest Blvd.Suite 400    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77042    
City Area Code 713    
Local Phone Number 623-0801    
Title of 12(b) Security Common Stock, par value $0.10    
Trading Symbol EGY    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 641.4
Entity Common Stock, Shares Outstanding   103,743,163  
Documents Incorporated by Reference
Documents incorporated by reference: Portions of the definitive Proxy Statement of VAALCO Energy, Inc. relating to the Annual Meeting of Stockholders to be filed within 120 days after the end of the fiscal year covered by this Form 10-K, which are incorporated into Part III of this Form 10-K.
    
Entity Registrant Name VAALCO ENERGY INC /DE/    
Entity Central Index Key 0000894627    
Amendment Flag false    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2024