XML 37 R8.htm IDEA: XBRL DOCUMENT v2.4.1.9
Condensed Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Cash Flows from Operating Activities:      
Net Income (Loss) $ (283,427)us-gaap_NetIncomeLoss $ (2,442)us-gaap_NetIncomeLoss $ 21,701us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operation activities -      
Write-down of oil and gas properties 445,396us-gaap_ImpairmentOfOilAndGasProperties 46,948us-gaap_ImpairmentOfOilAndGasProperties 0us-gaap_ImpairmentOfOilAndGasProperties
Depreciation, depletion, and amortization 267,590us-gaap_DepreciationDepletionAndAmortization 252,769us-gaap_DepreciationDepletionAndAmortization 249,344us-gaap_DepreciationDepletionAndAmortization
Accretion of asset retirement obligation 5,712us-gaap_AssetRetirementObligationAccretionExpense 6,181us-gaap_AssetRetirementObligationAccretionExpense 5,121us-gaap_AssetRetirementObligationAccretionExpense
Deferred income taxes (150,357)us-gaap_IncreaseDecreaseInDeferredIncomeTaxes 2,647us-gaap_IncreaseDecreaseInDeferredIncomeTaxes 17,231us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Stock-based compensation expenses 7,309us-gaap_ShareBasedCompensation 10,099us-gaap_ShareBasedCompensation 13,795us-gaap_ShareBasedCompensation
Other (8,910)us-gaap_OtherNoncashExpense (5,443)us-gaap_OtherNoncashExpense 976us-gaap_OtherNoncashExpense
Change in assets and liabilities-      
(Increase) decrease in accounts receivable and other current assets 21,411us-gaap_IncreaseDecreaseInAccountsReceivable (1,894)us-gaap_IncreaseDecreaseInAccountsReceivable (1,534)us-gaap_IncreaseDecreaseInAccountsReceivable
Increase (decrease) in accounts payable and accrued liabilities 1,505us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities 2,607us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities (1,013)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Increase (decrease) in income taxes payable 314us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable (224)us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable 82us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable
Increase (decrease) in accrued interest (172)us-gaap_IncreaseDecreaseInInterestPayableNet 199us-gaap_IncreaseDecreaseInInterestPayableNet 8,903us-gaap_IncreaseDecreaseInInterestPayableNet
Net Cash Provided by Operating Activities 306,371us-gaap_NetCashProvidedByUsedInOperatingActivities 311,447us-gaap_NetCashProvidedByUsedInOperatingActivities 314,606us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash Flows from Investing Activities:      
Additions to property and equipment (386,336)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (540,368)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (757,755)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from the sale of property and equipment 145,035us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 6,991us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 528us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Funds withdrawn from restricted cash account 25,994us-gaap_DecreaseInRestrictedCash 0us-gaap_DecreaseInRestrictedCash 0us-gaap_DecreaseInRestrictedCash
Funds deposited into restricted cash account (25,994)us-gaap_IncreaseInRestrictedCash 0us-gaap_IncreaseInRestrictedCash 0us-gaap_IncreaseInRestrictedCash
Net Cash Used in Investing Activities (241,301)us-gaap_NetCashProvidedByUsedInInvestingActivities (533,377)us-gaap_NetCashProvidedByUsedInInvestingActivities (757,227)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash Flows from Financing Activities:      
Proceeds from long-term debt 0us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt 0us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt 157,500us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt
Proceeds from bank borrowings 487,400us-gaap_ProceedsFromLinesOfCredit 622,500us-gaap_ProceedsFromLinesOfCredit 371,300us-gaap_ProceedsFromLinesOfCredit
Payments of bank borrowings (555,100)us-gaap_RepaymentsOfLinesOfCredit (396,900)us-gaap_RepaymentsOfLinesOfCredit (331,900)us-gaap_RepaymentsOfLinesOfCredit
Net proceeds from issuances of common stock 824us-gaap_ProceedsFromIssuanceOrSaleOfEquity 950us-gaap_ProceedsFromIssuanceOrSaleOfEquity 1,712us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Purchase of treasury shares (1,065)us-gaap_PaymentsForRepurchaseOfCommonStock (1,513)us-gaap_PaymentsForRepurchaseOfCommonStock (2,805)us-gaap_PaymentsForRepurchaseOfCommonStock
Payments of debt issuance costs 0us-gaap_PaymentsOfDebtIssuanceCosts 0us-gaap_PaymentsOfDebtIssuanceCosts (4,712)us-gaap_PaymentsOfDebtIssuanceCosts
Net Cash Provided by (Used in) Financing Activities (67,941)us-gaap_NetCashProvidedByUsedInFinancingActivities 225,037us-gaap_NetCashProvidedByUsedInFinancingActivities 191,095us-gaap_NetCashProvidedByUsedInFinancingActivities
Net Increase (decrease) in Cash and Cash Equivalents (2,871)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 3,107us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (251,526)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and Cash Equivalents at Beginning of Period 3,277us-gaap_CashAndCashEquivalentsAtCarryingValue 170us-gaap_CashAndCashEquivalentsAtCarryingValue 251,696us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and Cash Equivalents at End of Period 406us-gaap_CashAndCashEquivalentsAtCarryingValue 3,277us-gaap_CashAndCashEquivalentsAtCarryingValue 170us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental Disclosures of Cash Flows Information:      
Cash paid during period for interest, net of amounts capitalized 70,933us-gaap_InterestPaidNet 67,070us-gaap_InterestPaidNet 46,911us-gaap_InterestPaidNet
Cash paid during period for income taxes $ 150us-gaap_IncomeTaxesPaidNet $ 217us-gaap_IncomeTaxesPaidNet $ 248us-gaap_IncomeTaxesPaidNet