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CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)
Mar. 31, 2015
Dec. 31, 2014
CURRENT ASSETS    
Cash $ 3,342,836us-gaap_Cash $ 4,052,212us-gaap_Cash
Escrow receivable 321,428us-gaap_EscrowDeposit 321,428us-gaap_EscrowDeposit
Insurance claim receivable 7,770,574us-gaap_InsuranceSettlementsReceivableCurrent 8,612,681us-gaap_InsuranceSettlementsReceivableCurrent
Prepaid expenses and other current assets 295,306us-gaap_PrepaidExpenseAndOtherAssetsCurrent 124,960us-gaap_PrepaidExpenseAndOtherAssetsCurrent
TOTAL CURRENT ASSETS 11,730,144us-gaap_AssetsCurrent 13,111,281us-gaap_AssetsCurrent
Oil and gas properties - full cost method    
Costs subject to amortization 54,833,445husa_CostsSubjectToAmortization 54,025,617husa_CostsSubjectToAmortization
Costs not being amortized 2,803,303husa_CostsNotBeingAmortized 3,586,284husa_CostsNotBeingAmortized
Office equipment 90,004us-gaap_MachineryAndEquipmentGross 90,004us-gaap_MachineryAndEquipmentGross
Total 57,726,752us-gaap_PropertyPlantAndEquipmentGross 57,701,905us-gaap_PropertyPlantAndEquipmentGross
Accumulated depreciation, depletion, amortization and impairment (53,010,832)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (52,201,878)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
PROPERTY AND EQUIPMENT, NET 4,715,920us-gaap_PropertyPlantAndEquipmentNet 5,500,027us-gaap_PropertyPlantAndEquipmentNet
Other assets 3,167us-gaap_OtherAssetsNoncurrent 3,167us-gaap_OtherAssetsNoncurrent
TOTAL ASSETS 16,449,231us-gaap_Assets 18,614,475us-gaap_Assets
CURRENT LIABILITIES    
Accounts payable 33,897us-gaap_AccountsPayableCurrent 181,683us-gaap_AccountsPayableCurrent
Litigation settlement payable 7,000,000us-gaap_LitigationReserveCurrent 7,000,000us-gaap_LitigationReserveCurrent
Accrued legal fees 880,574us-gaap_AccruedProfessionalFeesCurrent 1,722,681us-gaap_AccruedProfessionalFeesCurrent
Contingent liability 400,000us-gaap_LossContingencyAccrualCarryingValueCurrent 400,000us-gaap_LossContingencyAccrualCarryingValueCurrent
Accrued expenses 1,436us-gaap_AccruedLiabilitiesCurrent 10,100us-gaap_AccruedLiabilitiesCurrent
TOTAL CURRENT LIABILITIES 8,315,907us-gaap_LiabilitiesCurrent 9,314,464us-gaap_LiabilitiesCurrent
LONG-TERM LIABILITIES    
Reserve for plugging and abandonment costs 28,729us-gaap_AssetRetirementObligationsNoncurrent 28,147us-gaap_AssetRetirementObligationsNoncurrent
TOTAL LIABILITIES 8,344,636us-gaap_Liabilities 9,342,611us-gaap_Liabilities
COMMITMENTS AND CONTINGENCIES      
SHAREHOLDERS' EQUITY    
Common stock, $0.001 par value; 150,000,000 shares authorized; 52,169,945 shares issued and outstanding 52,170us-gaap_CommonStockValue 52,170us-gaap_CommonStockValue
Additional paid-in capital 65,947,851us-gaap_AdditionalPaidInCapitalCommonStock 65,928,056us-gaap_AdditionalPaidInCapitalCommonStock
Accumulated deficit (57,895,426)us-gaap_RetainedEarningsAccumulatedDeficit (56,708,362)us-gaap_RetainedEarningsAccumulatedDeficit
TOTAL SHAREHOLDERS' EQUITY 8,104,595us-gaap_StockholdersEquity 9,271,864us-gaap_StockholdersEquity
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 16,449,231us-gaap_LiabilitiesAndStockholdersEquity $ 18,614,475us-gaap_LiabilitiesAndStockholdersEquity