Cover - shares	6 Months Ended
	Jun. 30, 2025	Aug. 05, 2025
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2025
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.
Entity Address, Address Line Two	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
Trading Symbol	EGY
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		104,258,253
Entity Central Index Key	0000894627
Entity Registrant Name	VAALCO ENERGY INC /DE/
Amendment Flag	false
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31