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SCHEDULE I - PARENT COMPANY FINANCIAL STATEMENT- CONSOLIDATED BALANCE SHEETS (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Current assets: |  |  |  |
Cash and cash equivalents | $ 69,051 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 130,529 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 130,800 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 137,139 us-gaap_CashAndCashEquivalentsAtCarryingValue
Restricted cash | 1,584 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | 12,366 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue |  |
Receivables: |  |  |  |
Other, net of allowance of $2.4 million in 2014, and zero in 2013 | 3,285 us-gaap_OtherAssetsCurrent | 4,435 us-gaap_OtherAssetsCurrent |  |
Prepayments and other | 6,509 us-gaap_PrepaidExpenseAndOtherAssets | 2,339 us-gaap_PrepaidExpenseAndOtherAssets |  |
Total current assets | 113,050 us-gaap_AssetsCurrent | 167,464 us-gaap_AssetsCurrent |  |
Property and equipment - successful efforts method: |  |  |  |
Equipment and other | 11,907 us-gaap_PropertyPlantAndEquipmentOther | 6,831 us-gaap_PropertyPlantAndEquipmentOther |  |
Property, plant and equipment, gross, Total | 397,838 us-gaap_PropertyPlantAndEquipmentGross | 310,726 us-gaap_PropertyPlantAndEquipmentGross |  |
Accumulated depreciation, depletion and amortization | (289,714)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | (172,202)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment |  |
Net property and equipment | 108,124 us-gaap_PropertyPlantAndEquipmentNet | 138,524 us-gaap_PropertyPlantAndEquipmentNet |  |
Other assets: |  |  |  |
Restricted cash | 20,830 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent | 830 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent |  |
Deferred tax asset | 1,349 us-gaap_DeferredTaxAssetsNetNoncurrent | 1,349 us-gaap_DeferredTaxAssetsNetNoncurrent |  |
Total Assets | 248,849 us-gaap_Assets | 308,167 us-gaap_Assets | 267,956 us-gaap_Assets |
Current liabilities: |  |  |  |
Accounts payable and accrued liabilities | 38,540 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent | 42,561 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent |  |
Total current liabilities | 38,540 us-gaap_LiabilitiesCurrent | 45,829 us-gaap_LiabilitiesCurrent |  |
Long term debt | 15,000 us-gaap_LongTermDebtNoncurrent |  |  |
Total liabilities | 68,386 us-gaap_Liabilities | 57,293 us-gaap_Liabilities |  |
VAALCO Energy Inc. shareholders’ equity: |  |  |  |
Common stock, $0.10 par value, 100,000,000 authorized shares, 65,194,828 and 64,012,914 shares issued with 7,393,714 and 7,162,573 shares in treasury at Dec. 31, 2014 and 2013, respectively | 6,519 us-gaap_CommonStockValue | 6,408 us-gaap_CommonStockValue |  |
Additional paid-in capital | 64,351 us-gaap_AdditionalPaidInCapitalCommonStock | 55,455 us-gaap_AdditionalPaidInCapitalCommonStock |  |
Retained earnings | 146,892 us-gaap_RetainedEarningsAccumulatedDeficit | 224,442 us-gaap_RetainedEarningsAccumulatedDeficit |  |
Less treasury stock, at cost | (37,299)us-gaap_TreasuryStockValue | (35,431)us-gaap_TreasuryStockValue |  |
Total Equity | 180,463 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 250,874 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 212,525 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 233,067 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Total Liabilities and Equity | 248,849 us-gaap_LiabilitiesAndStockholdersEquity | 308,167 us-gaap_LiabilitiesAndStockholdersEquity |  |
VAALCO ENERGY, INC. |  |  |  |
Current assets: |  |  |  |
Cash and cash equivalents | 3,780 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,605 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 26,801 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 54,273 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Restricted cash |  | 10,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Receivables: |  |  |  |
Other, net of allowance of $2.4 million in 2014, and zero in 2013 | 264 us-gaap_OtherAssetsCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 7 us-gaap_OtherAssetsCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Prepayments and other | 505 us-gaap_PrepaidExpenseAndOtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 89 us-gaap_PrepaidExpenseAndOtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total current assets | 4,549 us-gaap_AssetsCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 18,701 us-gaap_AssetsCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Property and equipment - successful efforts method: |  |  |  |
Equipment and other | 1,316 us-gaap_PropertyPlantAndEquipmentOther / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 500 us-gaap_PropertyPlantAndEquipmentOther / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Property, plant and equipment, gross, Total | 1,316 us-gaap_PropertyPlantAndEquipmentGross / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 500 us-gaap_PropertyPlantAndEquipmentGross / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Accumulated depreciation, depletion and amortization | (442)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (348)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Net property and equipment | 874 us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 152 us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Other assets: |  |  |  |
Restricted cash | 10,000 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Deferred tax asset | 1,349 us-gaap_DeferredTaxAssetsNetNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,349 us-gaap_DeferredTaxAssetsNetNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Investment in Subsidiaries | 166,232 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 233,061 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total Assets | 183,004 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 253,263 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Current liabilities: |  |  |  |
Accounts payable and accrued liabilities | 2,541 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,389 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total current liabilities | 2,541 us-gaap_LiabilitiesCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,389 us-gaap_LiabilitiesCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total liabilities | 2,541 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,389 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
VAALCO Energy Inc. shareholders’ equity: |  |  |  |
Common stock, $0.10 par value, 100,000,000 authorized shares, 65,194,828 and 64,012,914 shares issued with 7,393,714 and 7,162,573 shares in treasury at Dec. 31, 2014 and 2013, respectively | 6,519 us-gaap_CommonStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,408 us-gaap_CommonStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Additional paid-in capital | 64,351 us-gaap_AdditionalPaidInCapitalCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 55,455 us-gaap_AdditionalPaidInCapitalCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Retained earnings | 146,892 us-gaap_RetainedEarningsAccumulatedDeficit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 224,442 us-gaap_RetainedEarningsAccumulatedDeficit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Less treasury stock, at cost | (37,299)us-gaap_TreasuryStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (35,431)us-gaap_TreasuryStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total Equity | 180,463 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 250,874 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total Liabilities and Equity | $ 183,004 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 253,263 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |

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