XML 77 R60.htm IDEA: XBRL DOCUMENT v2.4.1.9
Supplementary Financial Information On Oil And Natural Gas Exploration Development and Production (Details 4) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Increase (decrease)    
Sale of gas and oil, net of operating expenses $ (470,244)us-gaap_SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts $ (473,159)us-gaap_SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
Discoveries, extensions and improved recovery, net of future production and development costs 0us-gaap_PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod 888,160us-gaap_PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod
Accretion of discount 242,210us-gaap_AccretionOfDiscount 261,779us-gaap_AccretionOfDiscount
Net increase (decrease) (228,034)us-gaap_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease 676,780us-gaap_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
Standardized measure of discounted future cash flows:    
Beginning of the year 2,422,100us-gaap_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves 1,745,320us-gaap_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
Before Income Taxes 1,464,570vyey_IncreaseDecreaseInFutureBeforeIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves 2,422,100vyey_IncreaseDecreaseInFutureBeforeIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
Income Taxes (500,586)vyey_IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves1 (823,500)vyey_IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves1
End of the year 963,984vyey_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves1 1,598,600vyey_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves1
Consolidated Entities [Member]    
Standardized measure of discounted future cash flows:    
End of the year $ 481,992vyey_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves1
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
$ 799,300vyey_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves1
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember