VAALCO Energy, Inc. Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Summary of Non Vested Awards (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock, Awards granted	1,339,000
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock, Non-Vested Shares Outstanding at beginning period	147,868
Restricted Stock, Awards granted	238,783
Restricted Stock, Awards vested	(105,529)
Restricted Stock, Non-Vested Shares Outstanding at ending period	281,122
Weighted Average Grant Price, Non-Vested Shares Outstanding at beginning period	6.39
Weighted Average Grant Price, Awards granted	4.98
Weighted Average Grant Price, Awards vested	5.40
Weighted Average Grant Price, Non-Vested Shares Outstanding at ending period	5.56