Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Estimated Obligations and Companies Share for the Annual Charter Payment) (Details)

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Commitments and Contingencies (Estimated Obligations and Companies Share for the Annual Charter Payment) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
VAALCO ENERGY, INC.    
Estimated obligation and company share for annual charter payment    
Annual charter payment, 2019   $ 9,718
Annual charter payment, 2020   7,029
Annual charter payment, Total   16,747
Full Charter Payment [Member]    
Estimated obligation and company share for annual charter payment    
Annual charter payment, 2019   31,294
Annual charter payment, 2020   22,634
Annual charter payment, Total $ 53,900 $ 53,928