$EGY
VAALCO ENERGY INC /DE/ Stock $egy

$egy Overview Financials Valuation SEC Filings Company Website

2018 Q3 Form 10-K Financial Statement

#000089462719000010 Filed on March 08, 2019

Income Statement

Concept	2018 Q3	2018	2017 Q4
Revenue	$25.27M	$104.9M	$17.16M
YoY Change	38.99%	36.25%	11.91%
Cost Of Revenue	$7.480M	$40.40M	$11.55M
YoY Change	-27.66%	1.76%	-2.37%
Gross Profit	$17.79M	$64.50M	$5.610M
YoY Change	126.91%	72.92%	60.29%
Gross Profit Margin	70.41%	61.46%	32.7%
Selling, General & Admin	$2.650M	$11.30M	$1.940M
YoY Change	9.96%	4.63%	-18.14%
% of Gross Profit	14.9%	17.52%	34.58%
Research & Development	$0.00	$0.00	$0.00
YoY Change
% of Gross Profit	0.0%	0.0%	0.0%
Depreciation & Amortization	$1.130M	$5.596M	$1.000M
YoY Change	-33.53%	-13.33%	-9.09%
% of Gross Profit	6.35%	8.68%	17.83%
Operating Expenses	$470.0K	$13.30M	$3.110M
YoY Change	-88.59%	-23.56%	16.92%
Operating Profit	$17.32M	$51.29M	$2.495M
YoY Change	365.47%	157.06%	197.02%
Interest Expense	$111.0K	$145.0K	-$280.0K
YoY Change	-135.81%	-89.75%	-22.22%
% of Operating Profit	0.64%	0.28%	-11.22%
Other Income/Expense, Net	-$3.000K	$68.00K	$2.660M
YoY Change	-99.62%	-97.84%	-283.45%
Pretax Income	$16.40M	$55.47M	$4.870M
YoY Change	530.6%	168.64%	-591.92%
Income Tax	-$62.22M	-$43.25M	-$51.11M
% Of Pretax Income	-379.37%	-77.97%	-1049.49%
Net Earnings	$78.61M	$98.23M	$3.431M
YoY Change	-24511.49%	917.84%	-194.26%
Net Earnings / Revenue	311.11%	93.61%	20.0%
Basic Earnings Per Share	$1.31	$1.64	$0.06
Diluted Earnings Per Share	$1.28	$1.62	$0.06
COMMON SHARES
Basic Shares Outstanding	59.48M	59.25M
Diluted Shares Outstanding	60.82M	60.00M

Balance Sheet

Concept	2018 Q3	2018	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$33.70M	$33.40M	$19.70M
YoY Change	78.31%	69.54%	-3.9%
Cash & Equivalents	$33.72M	$33.40M	$19.67M
Short-Term Investments
Other Short-Term Assets	$7.300M	$10.40M	$6.500M
YoY Change	10.61%	60.0%	-5.8%
Inventory	$2.200M	$800.0K	$3.300M
Prepaid Expenses
Receivables	$900.0K	$12.90M	$7.000M
Other Receivables	$408.0K	$1.400M	$100.0K
Total Short-Term Assets	$44.59M	$58.80M	$36.45M
YoY Change	22.17%	61.1%	-5.32%
LONG-TERM ASSETS
Property, Plant & Equipment	$53.54M	$52.70M	$23.22M
YoY Change	124.03%	127.16%	-17.07%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$80.50M	$52.60M	$13.00M
YoY Change	747.37%	304.62%	38.3%
Total Long-Term Assets	$117.8M	$107.5M	$43.18M
YoY Change	194.43%	149.42%	1.6%
TOTAL ASSETS
Total Short-Term Assets	$44.59M	$58.80M	$36.45M
Total Long-Term Assets	$117.8M	$107.5M	$43.18M
Total Assets	$162.4M	$166.3M	$79.63M
YoY Change	112.24%	108.92%	-1.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$7.219M	$8.400M	$11.58M
YoY Change	-47.69%	-27.59%	-39.35%
Accrued Expenses	$17.66M	$14.10M	$12.99M
YoY Change	74.87%	8.46%	23.72%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due			$6.666M
YoY Change			-11.12%
Total Short-Term Liabilities	$47.34M	$41.00M	$46.59M
YoY Change	1.16%	-12.02%	-16.21%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$2.309M
YoY Change	-100.0%	-100.0%	-66.54%
Other Long-Term Liabilities	$1.264M	$15.40M	$284.0K
YoY Change	-93.52%	-24.51%	-98.5%
Total Long-Term Liabilities	$1.264M	$15.40M	$2.593M
YoY Change	-94.5%	-32.16%	-89.95%
TOTAL LIABILITIES
Total Short-Term Liabilities	$47.34M	$41.00M	$46.59M
Total Long-Term Liabilities	$1.264M	$15.40M	$2.593M
Total Liabilities	$63.07M	$56.50M	$69.34M
YoY Change	-9.65%	-18.47%	-14.81%
SHAREHOLDERS EQUITY
Retained Earnings	$58.16M		-$29.65M
YoY Change
Common Stock	$78.94M		$77.90M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$37.80M		$37.95M
YoY Change
Treasury Stock Shares	$7.554M		$7.581M
Shareholders Equity	$99.30M	$109.8M	$10.29M
YoY Change
Total Liabilities & Shareholders Equity	$162.4M	$166.3M	$79.63M
YoY Change	112.24%	108.92%	-1.69%

Cashflow Statement

Concept	2018 Q3	2018	2017 Q4
OPERATING ACTIVITIES
Net Income	$78.61M	$98.23M	$3.431M
YoY Change	-24511.49%	917.84%	-194.26%
Depreciation, Depletion And Amortization	$1.130M	$5.596M	$1.000M
YoY Change	-33.53%	-13.33%	-9.09%
Cash From Operating Activities	$5.300M	$37.18M	$5.800M
YoY Change	783.33%	315.05%	-5900.0%
INVESTING ACTIVITIES
Capital Expenditures	-$12.20M	$14.13M	-$500.0K
YoY Change	3966.67%	679.21%	-112.2%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$100.0K
YoY Change	-100.0%	-100.0%	-100.45%
Cash From Investing Activities	-$12.20M	-$14.13M	-$400.0K
YoY Change	2950.0%	842.43%	-97.8%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$486.0K
YoY Change		2457.89%
Debt Paid & Issued, Net		$9.166M
YoY Change		-8.35%
Cash From Financing Activities	0.000	-8.680M	-2.100M
YoY Change	-100.0%	49.27%
NET CHANGE
Cash From Operating Activities	5.300M	37.18M	5.800M
Cash From Investing Activities	-12.20M	-14.13M	-400.0K
Cash From Financing Activities	0.000	-8.680M	-2.100M
Net Change In Cash	-6.900M	14.37M	3.300M
YoY Change	263.16%	774.56%	-118.03%
FREE CASH FLOW
Cash From Operating Activities	$5.300M	$37.18M	$5.800M
Capital Expenditures	-$12.20M	$14.13M	-$500.0K
Free Cash Flow	$17.50M	$23.05M	$6.300M
YoY Change	1844.44%	222.63%	-250.0%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000894627
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	59595742
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	160000000
CY2018	dei	Entity Registrant Name EntityRegistrantName	VAALCO ENERGY INC /DE/
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	true
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2018	dei	Trading Symbol TradingSymbol	egy
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CY2018	egy	Additional Increase To Working Interest Ownership Percent AdditionalIncreaseToWorkingInterestOwnershipPercent	0.008
CY2016	egy	Asset Retirement Obligation Acquisitions And Dispositions AssetRetirementObligationAcquisitionsAndDispositions	1544000
CY2017	egy	Asset Retirement Obligation Acquisitions And Dispositions AssetRetirementObligationAcquisitionsAndDispositions	-103000
CY2018	egy	Asset Retirement Obligation Gain Loss On Revision AssetRetirementObligationGainLossOnRevision	3325000
CY2016	egy	Asset Retirement Obligations Non Cash Investment And Financing Activities AssetRetirementObligationsNonCashInvestmentAndFinancingActivities	1543000
CY2017	egy	Asset Retirement Obligations Non Cash Investment And Financing Activities AssetRetirementObligationsNonCashInvestmentAndFinancingActivities	600000
CY2018	egy	Asset Retirement Obligations Non Cash Investment And Financing Activities AssetRetirementObligationsNonCashInvestmentAndFinancingActivities	-6527000
CY2018Q4	egy	Benchmark Of Liability Position With Required Financial Actions BenchmarkOfLiabilityPositionWithRequiredFinancialActions	10000000
CY2016	egy	Charter Expenses CharterExpenses	11200000
CY2017	egy	Charter Expenses CharterExpenses	12800000
CY2018	egy	Charter Expenses CharterExpenses	10800000
CY2018	egy	Charter Fee Per Barrel For Production Level One CharterFeePerBarrelForProductionLevelOne	0.93
CY2018	egy	Charter Fee Per Barrel For Production Level Two CharterFeePerBarrelForProductionLevelTwo	2.50
CY2017Q4	egy	Cost Account Associated With Interest In Profit Remaining Portion CostAccountAssociatedWithInterestInProfitRemainingPortion	97600000
CY2017Q4	egy	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	1331000
CY2018Q4	egy	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	387000
CY2018	egy	Estimated Costs Of Technical Studies EstimatedCostsOfTechnicalStudies	1300000
CY2018	egy	Estimated Costs Of Technical Studies Net EstimatedCostsOfTechnicalStudiesNet	400000
CY2018	egy	Estimated Costs Of Wells Gross Amount EstimatedCostsOfWellsGrossAmount	61200000
CY2018	egy	Explanation Of Error Correction ExplanationOfErrorCorrection	<div> <div style="margin-left:0pt;margin-right:0pt;"> <p style="margin:6pt 0pt 0pt;font-family:Times New Roman;font-size: 12pt"> <font style="display: inline;font-weight:bold;font-style:italic;font-size:10pt;">Correction of error – Deferred tax liability related to oil and gas properties</font><font style="display: inline;font-family:Arial;font-weight:bold;font-style:italic;"> </font><font style="display: inline;">–</font><font style="display: inline;font-family:Arial;font-weight:bold;font-style:italic;"> </font><font style="display: inline;font-size:10pt;">Subsequent to the issuance of our condensed consolidated financial statements for the three months ended September 30, 2018, we identified an error </font><font style="display: inline;font-size:10pt;">related to a gross up in oil and natural gas properties for the establishment of a deferred tax liability of </font><font style="display: inline;font-size:10pt;">$18.6</font><font style="display: inline;font-size:10pt;"> million as a result of differences between the book basis attributable to leasehold costs incurred in connection with the extension of the Etame Marin block production sharing contract with Gabon entered into on September 25, 2018 and the tax basis in these costs.  To correct this error, we recorded an adjustment as of September 30, 2018 which resulted in an increase in capitalized oil and gas property costs of $18.6 million and a decrease in net deferred tax assets of $18.6 million.  This correction only impacted long-term assets and had no impact on total assets or working capital in our consolidated balance sheet.  This correction also had no impact on the unaudited condensed consolidated statements of operations or cash flows for the periods ended September 30, 2018</font><font style="display: inline;font-size:10pt;">.  See Note 16 for the restated condensed consolidated balance sheet.</font> </p> <p><font size="1"> </font></p> </div> </div>
CY2018Q4	egy	Foreign Taxes Payable Attributable To Sharing Obligation ForeignTaxesPayableAttributableToSharingObligation	3300000
CY2018	egy	Future Working Interest Of Carried Partner Percentage FutureWorkingInterestOfCarriedPartnerPercentage	0.1
CY2018	egy	Gross Up Of Oil And Natural Gas Properties By Establishment Of Deferred Tax Liability GrossUpOfOilAndNaturalGasPropertiesByEstablishmentOfDeferredTaxLiability	18613000
CY2018	egy	Income Taxes Paid In Kind With Oil IncomeTaxesPaidInKindWithOil	9385000
CY2017	egy	Income Tax Reconciliation Foreign Tax Credits Adjustment IncomeTaxReconciliationForeignTaxCreditsAdjustment	2394000
CY2018	egy	Income Tax Reconciliation Foreign Tax Credits Adjustment IncomeTaxReconciliationForeignTaxCreditsAdjustment	4311000
CY2018	egy	Income Tax Reconciliation Unrealizable Foreign Deferred Tax Assets IncomeTaxReconciliationUnrealizableForeignDeferredTaxAssets	24176000
CY2016	egy	Increase Decrease In Oil And Gas Joint Interest Billing Receivables IncreaseDecreaseInOilAndGasJointInterestBillingReceivables	-16284000
CY2017	egy	Increase Decrease In Oil And Gas Joint Interest Billing Receivables IncreaseDecreaseInOilAndGasJointInterestBillingReceivables	108000
CY2018	egy	Increase Decrease In Oil And Gas Joint Interest Billing Receivables IncreaseDecreaseInOilAndGasJointInterestBillingReceivables	-2747000
CY2016	egy	Increase Decrease In Value Added Tax Receivable IncreaseDecreaseInValueAddedTaxReceivable	1937000
CY2017	egy	Increase Decrease In Value Added Tax Receivable IncreaseDecreaseInValueAddedTaxReceivable	3025000
CY2018	egy	Increase Decrease In Value Added Tax Receivable IncreaseDecreaseInValueAddedTaxReceivable	777000
CY2018	egy	Initial Crude Oil Sales And Purchase Agreement Period InitialCrudeOilSalesAndPurchaseAgreementPeriod	P1Y
CY2018	egy	Interval Period Between Lifting IntervalPeriodBetweenLifting	P30D
CY2018	egy	Monthly Royalty Rate Based On Production At Published Price MonthlyRoyaltyRateBasedOnProductionAtPublishedPrice	0.13
CY2018	egy	Number Of Appraisal Wells Required By Agreement NumberOfAppraisalWellsRequiredByAgreement	2
CY2018	egy	Number Of Drilled Wells Required By Agreement NumberOfDrilledWellsRequiredByAgreement	2
CY2018Q3	egy	Oil And Gas Joint Interest Billings Payable Current OilAndGasJointInterestBillingsPayableCurrent	5496000
CY2018Q4	egy	Oil And Gas Joint Interest Billings Payable Current OilAndGasJointInterestBillingsPayableCurrent	304000
CY2017	egy	Operational Expenses Associated With Equipment And Other OperationalExpensesAssociatedWithEquipmentAndOther	1189000
CY2018	egy	Operational Expenses Associated With Equipment And Other OperationalExpensesAssociatedWithEquipmentAndOther	1604000
CY2016	egy	Other Income Expense OtherIncomeExpense	-4628000
CY2017	egy	Other Income Expense OtherIncomeExpense	699000
CY2018	egy	Other Income Expense OtherIncomeExpense	4187000
CY2016	egy	Other Interest Other Than Debt OtherInterestOtherThanDebt	75000
CY2017	egy	Other Interest Other Than Debt OtherInterestOtherThanDebt	55000
CY2018	egy	Other Interest Other Than Debt OtherInterestOtherThanDebt	-33000
CY2017	egy	Payments For Proceeds From Matured Derivative Instrument Net Operating Activities PaymentsForProceedsFromMaturedDerivativeInstrumentNetOperatingActivities	-195000
CY2018	egy	Payments For Proceeds From Matured Derivative Instrument Net Operating Activities PaymentsForProceedsFromMaturedDerivativeInstrumentNetOperatingActivities	744000
CY2018	egy	Percentage Of Share In Charter Payment PercentageOfShareInCharterPayment	0.311
CY2016	egy	Shareholder Matters ShareholderMatters	-332000
CY2018	egy	Share In Charter Payment Approximate Annual Amount ShareInCharterPaymentApproximateAnnualAmount	9700000
CY2018Q4	egy	Stock Option Granted Reduction Ratio For Numbers Authorized StockOptionGrantedReductionRatioForNumbersAuthorized	1
CY2018	egy	Treasury Stock Reissued Upon Vesting Of Restricted Stock TreasuryStockReissuedUponVestingOfRestrictedStock	-177000
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CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4363000
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2823000
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CY2016	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations
CY2017	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations
CY2018	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations
CY2016	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
CY2016	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	12286000
CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-4423000
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-1052000
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	66443971
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	67167994
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	58862876
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	59595742
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	6644000
CY2018Q3	us-gaap	Common Stock Value CommonStockValue	6709000
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	6717000
CY2018Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	519000
CY2016Q2	us-gaap	Contractual Obligation ContractualObligation	5100000
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	63909000
CY2017Q1	us-gaap	Costs And Expenses CostsAndExpenses	13055000
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	56990000
CY2017Q2	us-gaap	Costs And Expenses CostsAndExpenses	15068000
CY2017Q3	us-gaap	Costs And Expenses CostsAndExpenses	14454000
CY2017Q4	us-gaap	Costs And Expenses CostsAndExpenses	14413000
CY2018Q1	us-gaap	Costs And Expenses CostsAndExpenses	14631000
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	54021000
CY2018Q2	us-gaap	Costs And Expenses CostsAndExpenses	19017000
CY2018Q3	us-gaap	Costs And Expenses CostsAndExpenses	7940000
CY2018Q4	us-gaap	Costs And Expenses CostsAndExpenses	12433000
CY2018	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	20500000
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-674000
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9248000
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	11638000
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	14327000
CY2017Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	146000
CY2018Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	1632000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1260000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-15910000
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-40997000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1260000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-56907000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	154465000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	131012000
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1260000
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	40077000
CY2017Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	1260000
CY2018Q3	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	50195000
CY2018Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	40077000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	22490000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	20616000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	26371000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	19989000
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	180000
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	46929000
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	38479000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	1349000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	674000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	48071000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	43760000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3716000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3816000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	4234000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	3111000
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	211800000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	153205000
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	90935000
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	26000
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	300000
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	200000
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	300000
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6926000
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6457000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5596000
CY2018Q3	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	2232000
CY2018Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	785000
CY2016	us-gaap	Exploration Expense ExplorationExpense	5000
CY2017	us-gaap	Exploration Expense ExplorationExpense	7000
CY2018	us-gaap	Exploration Expense ExplorationExpense	14000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	30103000
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	3520000
CY2018Q4	us-gaap	Derivative Cap Price DerivativeCapPrice	74.00
CY2018Q4	us-gaap	Derivative Floor Price DerivativeFloorPrice	74.00
CY2017Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.07
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.17
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.04
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.45
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.070
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.040
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.000
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.060
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.64
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.02
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.45
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.070
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.040
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.000
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.060
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.02
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.28
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0
CY2017Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	3263000
CY2017Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	500000
CY2018Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	300000
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.00
CY2017Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.06
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.15
CY2018	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	4197000
CY2018Q4	us-gaap	Foreign Currency Exchange Rate Translation1 ForeignCurrencyExchangeRateTranslation1	573.000
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	30000
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	500000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	100000
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	32000
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	576000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-834000
CY2016	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-1711000
CY2017	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-1032000
CY2018	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	3520000
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9561000
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10377000
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11398000
CY2016	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	88000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-9893000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-9453000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-5672000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-9019000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20650000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	55474000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	874000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	61146000
CY2016	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-18267000
CY2017Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4435000
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	10272000
CY2017Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2451000
CY2017Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-148000
CY2017Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3534000
CY2018Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	8711000
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	98728000
CY2018Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	887000
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	78626000
CY2018Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	10504000
CY2016	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.31
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.65
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.02
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.31
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.17
CY2016	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.31
CY2017Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.07
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.17
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.04
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.00
CY2017Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.06
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.15
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.63
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.02
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.28
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.17
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-8283000
CY2017Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-176000
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-621000
CY2017Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-168000
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-174000
CY2017Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-103000
CY2018Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-52000
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-496000
CY2018Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-343000
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-21000
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-80000
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.14
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.14
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	9210000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	15153000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	2720000
CY2017Q4	us-gaap	Income Tax Examination Penalties Accrued IncomeTaxExaminationPenaltiesAccrued	500000
CY2017Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0
CY2018Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9248000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10378000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-43254000
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-802000
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-58777000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-62270000
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	52449000
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2394000
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-3156000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7228000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	11650000
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	4505000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	309000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-104000
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-12000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-106000
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies Foreign IncomeTaxReconciliationTaxContingenciesForeign	-45751000
CY2016	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	6319000
CY2017	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	6775000
CY2018	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	24840000
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-15459000
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-7297000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3409000
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1050000
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3195000
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8351000
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-4586000
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	2050000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-643000
CY2018	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	2751000
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	192000
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2350000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2478000
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-546000
CY2016	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	18000
CY2017	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	43000
CY2018	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	1330000
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-517000
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1646000
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-420000
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3000
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	749000
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0
CY2016	us-gaap	Interest Expense InterestExpense	2613000
CY2017	us-gaap	Interest Expense InterestExpense	1414000
CY2018	us-gaap	Interest Expense InterestExpense	145000
CY2016	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1353000
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	997000
CY2018	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	257000
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2613000
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1414000
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-145000
CY2016	us-gaap	Interest Paid Net InterestPaidNet	1326000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	997000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	257000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-14127000
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	400000
CY2016	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	3000
CY2017	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	7000
CY2018	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	270000
CY2017Q4	us-gaap	Liabilities Liabilities	69344000
CY2018Q3	us-gaap	Liabilities Liabilities	63066000
CY2018Q4	us-gaap	Liabilities Liabilities	56485000
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	79633000
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	162361000
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	166312000
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	46588000
CY2018Q3	us-gaap	Liabilities Current LiabilitiesCurrent	47343000
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	41044000
CY2017Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	146000
CY2018Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	1632000
CY2017Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	15347000
CY2018Q3	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	15191000
CY2018Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	15245000
CY2016Q2	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	20000000
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	6666000
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2309000
CY2017Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	389935000
CY2018Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	409487000
CY2018	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic	-490000
CY2018	us-gaap	Nature Of Operations NatureOfOperations	<div> <div style="margin-left:0pt;margin-right:0pt;"> <p style="margin:0pt;font-family:Times New Roman;font-size: 10pt"> <font style="display: inline;font-weight:bold;">1. ORGANIZATION</font> </p> <p style="margin:6pt 0pt;border-bottom:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt"> <font style="display: inline;font-size:10pt;">VAALCO Energy, Inc. (together with its consolidated subsidiaries “we”, “us”, “our”, “VAALCO” or the “Company”) is a Houston, Texas-based independent energy company engaged in the acquisition, exploration, development and production of crude oil. As operator, we have production operations and conduct exploration activities in Gabon, West Africa. We have opportunities to participate in development and exploration activities in Equatorial Guinea, West Africa. As discussed further in Note 4 below, we have discontinued operations associated with our activities in Angola, West Africa.</font> </p> <p style="margin:6pt 0pt;border-top:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 12pt"> <font style="display: inline;font-size:10pt;">Our consolidated subsidiaries are VAALCO Gabon (Etame), Inc., VAALCO Production (Gabon), Inc., VAALCO Gabon S.A., VAALCO Angola (Kwanza), Inc., VAALCO UK (North Sea), Ltd., VAALCO International, Inc., VAALCO Energy (EG), Inc., VAALCO Energy Mauritius (EG) Limited and VAALCO Energy (USA), Inc.</font><font style="display: inline;"> </font> </p> <p><font size="1"> </font></p> </div> </div>
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-144000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5815000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-8680000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-144000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-5815000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-8680000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-16506000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1499000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-16506000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1499000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-14127000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-79000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	8957000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37176000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-12365000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	13380000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	38228000
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-26550000
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	4259000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	9651000
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	2283000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-322000
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	3431000
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	8659000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	98232000
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	544000
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	78605000
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	10424000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-26550000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	9593000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	97007000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-26550000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	9593000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	97007000
CY2016	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	-18267000
CY2017	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	10210000
CY2018	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	97497000
CY2016	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Diluted NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted	-18267000
CY2017	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Diluted NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted	10210000
CY2018	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Diluted NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted	97497000
CY2016	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic	-8283000
CY2017	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic	-617000
CY2016	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted	-8283000
CY2017	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted	-617000
CY2018	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted	-490000
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2017Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	3395000
CY2018Q3	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	931000
CY2018Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	949000
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-4391000
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	8148000
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	19951000
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	5587000
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	3721000
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	2495000
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	13038000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	51287000
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	5723000
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	17320000
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	15206000
CY2016	us-gaap	Operating Lease Expense OperatingLeaseExpense	4500000
CY2017	us-gaap	Operating Lease Expense OperatingLeaseExpense	2400000
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	1300000
CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1222000
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	452000
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	-77000
CY2016	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	1424000
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	369000
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	417000
CY2016	us-gaap	Other General Expense OtherGeneralExpense	8853000
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	284000
CY2018Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1264000
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	625000
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-266000
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-84000
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	570000
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2015000
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2113000
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4332000
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-266000
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-84000
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	365000
CY2017Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	100000
CY2018Q3	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	408000
CY2018Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	1398000
CY2018	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	700000
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2939000
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	51000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20000
CY2018	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	40415000
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	58000
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	93000
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	5692000
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-64000
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8705000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1813000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	14127000
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	25
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	25
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2017Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0
CY2018Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2791000
CY2018Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3058000
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6301000
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-29653000
CY2018	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div> <div style="margin-left:0pt;margin-right:0pt;"> <p style="margin:6pt 0pt 0pt;font-family:Times New Roman;font-size: 10pt"> <font style="display: inline;font-weight:bold;font-style:italic;">Reclassifications</font><font style="display: inline;"> – Certain reclassifications have been made to prior period amounts to conform to the current period presentation related to the adoption of Accounting Standards Update (“</font><font style="display: inline;color:#000000;">ASU”) No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”)</font><font style="display: inline;">.  These reclassifications did not affect our consolidated financial results.  See Note 3 – New Accounting Standards for further information associated with ASU 2016-18.</font> </p> <p><font size="1"> </font></p> </div> </div>
CY2017	us-gaap	Proceeds From Derivative Instrument Financing Activities ProceedsFromDerivativeInstrumentFinancingActivities	200000
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	39000
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	544000
CY2016	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	830000
CY2017	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	250000
CY2017	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	4167000
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	39000000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	500000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	409367000
CY2018Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	442203000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	443329000
CY2016	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	-4061000
CY2017	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	1702000
CY2018	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	38634000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23221000
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53543000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52724000
CY2017Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	9432000
CY2018Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	8821000
CY2018Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	9552000
CY2018Q3	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	409611000
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1222000
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	452000
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-77000
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	3556000
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	11907000
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	10001000
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	9166000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	842000
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1025000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	804000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	967000
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	918000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	920000
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	10808000
CY2018Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	10808000
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	11571000
CY2016	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	37586000
CY2017	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	39697000
CY2018Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	58155000
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	68579000
CY2016	us-gaap	Revenues Revenues	59784000
CY2017Q1	us-gaap	Revenues Revenues	21266000
CY2017	us-gaap	Revenues Revenues	77025000
CY2017Q2	us-gaap	Revenues Revenues	20425000
CY2017Q3	us-gaap	Revenues Revenues	18178000
CY2017Q4	us-gaap	Revenues Revenues	17156000
CY2018Q1	us-gaap	Revenues Revenues	27645000
CY2018	us-gaap	Revenues Revenues	104943000
CY2018Q2	us-gaap	Revenues Revenues	24426000
CY2018Q3	us-gaap	Revenues Revenues	25266000
CY2018Q4	us-gaap	Revenues Revenues	27606000
CY2016	us-gaap	Royalty Expense RoyaltyExpense	9263000
CY2017	us-gaap	Royalty Expense RoyaltyExpense	11558000
CY2018	us-gaap	Royalty Expense RoyaltyExpense	15076000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0110
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0151
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0251
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1112527
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	499000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1649000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	1.90
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y8M9D
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	139000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	671000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.49
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.49
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.68
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	989000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2597000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2601000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	192000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	1098000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	2306000
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y2M12D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y6M
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.71
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.73
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.7100
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.77
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.54
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y3M4D
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.02
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	5.60
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	1.14
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.99
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	1.05
CY2016	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	40926
CY2017	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	26000
CY2018	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	26421
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	26076000
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	-358000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	10289000
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	99295000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	109827000
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	528000
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	39000
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	537000
CY2018Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	1775000
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3274000
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	7581095
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	7572251
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	37953000
CY2018Q3	us-gaap	Treasury Stock Value TreasuryStockValue	37798000
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	37827000
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	51000
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	20000
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	51000
CY2017	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	62000
CY2018	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic	1231000
CY2016	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2017	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2018	us-gaap	Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2017	us-gaap	Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Basic UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic	-4000
CY2018	us-gaap	Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Basic UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic	-6000
CY2016	us-gaap	Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2017	us-gaap	Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2018	us-gaap	Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Diluted UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesDiluted
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	58000
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1225000
CY2016	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
CY2017Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	10000000
CY2018Q3	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	23771000
CY2018Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	23771000
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div> <div style="margin-left:0pt;margin-right:0pt;"> <p style="margin:6pt 0pt 0pt;font-family:Times New Roman;font-size: 10pt"> <font style="display: inline;font-weight:bold;font-style:italic;">Use of estimates</font><font style="display: inline;"> – The preparation of the Financial Statements in conformity with generally accepted accounting principles in the United States (“U.S.”) (“GAAP”) requires estimates and assumptions that affect the reported amounts of assets and liabilities </font><font style="display: inline;font-family:inherit;">and the disclosure of contingent assets and liabilities as of the date of the Financial Statements and the reported amounts of revenues and expenses during the respective reporting periods.</font><font style="display: inline;"> Our Financial Statements include amounts that are based on management’s best estimates and judgments. Actual results could differ from those estimates.</font> </p> <p style="margin:6pt 0pt 0pt;font-family:Times New Roman;font-size: 10pt"> <font style="display: inline;">Estimates of oil and natural gas reserves used to estimate depletion expense and impairment charges require extensive judgments and are generally less precise than other estimates made in connection with financial disclosures. Due to inherent uncertainties and the limited nature of data, estimates are imprecise and subject to change over time as additional information become available.</font> </p> <p><font size="1"> </font></p> </div> </div>
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	57600000
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-16500000
CY2017Q4	us-gaap	Value Added Tax Receivable Noncurrent ValueAddedTaxReceivableNoncurrent	6925000
CY2018Q3	us-gaap	Value Added Tax Receivable Noncurrent ValueAddedTaxReceivableNoncurrent	2306000
CY2018Q4	us-gaap	Value Added Tax Receivable Noncurrent ValueAddedTaxReceivableNoncurrent	2226000
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	58384000
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	58720000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	59997000
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	58384000
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	58717000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	59248000
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	869000

Files In Submission

Name	View Source	Status
0000894627-19-000010-index-headers.html	Edgar Link	pending
0000894627-19-000010-index.html	Edgar Link	pending
0000894627-19-000010.txt	Edgar Link	pending
0000894627-19-000010-xbrl.zip	Edgar Link	pending
egy-20181231.xml	Edgar Link	completed
egy-20181231.xsd	Edgar Link	pending
egy-20181231x10k.htm	Edgar Link	pending
egy-20181231x10kg001.jpg	Edgar Link	pending
egy-20181231xex21_1.htm	Edgar Link	pending
egy-20181231xex23_1.htm	Edgar Link	pending
egy-20181231xex23_2.htm	Edgar Link	pending
egy-20181231xex31_1.htm	Edgar Link	pending
egy-20181231xex31_2.htm	Edgar Link	pending
egy-20181231xex32_1.htm	Edgar Link	pending
egy-20181231xex32_2.htm	Edgar Link	pending
egy-20181231xex99_1.htm	Edgar Link	pending
egy-20181231_cal.xml	Edgar Link	unprocessable
egy-20181231_def.xml	Edgar Link	unprocessable
egy-20181231_lab.xml	Edgar Link	unprocessable
egy-20181231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$EGY
VAALCO ENERGY INC /DE/ Stock $egy

2018 Q3 Form 10-K Financial Statement

#000089462719000010 Filed on March 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EGY VAALCO ENERGY INC /DE/ Stock $egy

2018 Q3 Form 10-K Financial Statement

#000089462719000010 Filed on March 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EGY
VAALCO ENERGY INC /DE/ Stock $egy