2.4.0.6 Html 128 161 1 true 51 0 false 8 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://www.atlasenergy.com/role/DocumentDocumentAndEntityInformation Document and Entity Information true false R2.htm 00100 - Statement - Balance Sheets Sheet http://www.atlasenergy.com/role/StatementBalanceSheets Balance Sheets false false R3.htm 00105 - Statement - Balance Sheets (Parenthetical) Sheet http://www.atlasenergy.com/role/StatementBalanceSheetsParenthetical Balance Sheets (Parenthetical) false false R4.htm 00200 - Statement - Statements of Operations Sheet http://www.atlasenergy.com/role/StatementStatementsOfOperations Statements of Operations false false R5.htm 00300 - Statement - Statements Of Comprehensive (Loss) Income Sheet http://www.atlasenergy.com/role/StatementStatementsOfComprehensiveLossIncome Statements Of Comprehensive (Loss) Income false false R6.htm 00400 - Statement - Statement of Changes in Partners' Capital Sheet http://www.atlasenergy.com/role/StatementStatementOfChangesInPartnersCapital Statement of Changes in Partners' Capital false false R7.htm 00500 - Statement - Statements of Cash Flows Sheet http://www.atlasenergy.com/role/StatementStatementsOfCashFlows Statements of Cash Flows false false R8.htm 10101 - Disclosure - Basis of Presentation Sheet http://www.atlasenergy.com/role/DisclosureBasisOfPresentation Basis of Presentation false false R9.htm 10201 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.atlasenergy.com/role/DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies false false R10.htm 10301 - Disclosure - Participation in Revenues and Costs Sheet http://www.atlasenergy.com/role/DisclosureParticipationInRevenuesAndCosts Participation in Revenues and Costs false false R11.htm 10401 - Disclosure - Property, Plant and Equipment Sheet http://www.atlasenergy.com/role/DisclosurePropertyPlantAndEquipment Property, Plant and Equipment false false R12.htm 10501 - Disclosure - Asset Retirement Obligation Sheet http://www.atlasenergy.com/role/DisclosureAssetRetirementObligation Asset Retirement Obligation false false R13.htm 10601 - Disclosure - Derivative Instruments Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstruments Derivative Instruments false false R14.htm 10701 - Disclosure - Fair Value of Financial Instruments Sheet http://www.atlasenergy.com/role/DisclosureFairValueOfFinancialInstruments Fair Value of Financial Instruments false false R15.htm 10801 - Disclosure - Certain Relationship's and Related Party Transactions Sheet http://www.atlasenergy.com/role/DisclosureCertainRelationshipSAndRelatedPartyTransactions Certain Relationship's and Related Party Transactions false false R16.htm 10901 - Disclosure - Commitments and Contingencies Sheet http://www.atlasenergy.com/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies false false R17.htm 11001 - Disclosure - Subsequent Events Sheet http://www.atlasenergy.com/role/DisclosureSubsequentEvents Subsequent Events false false R18.htm 11101 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnaudited Natural Gas And Oil Producing Activities (Unaudited) false false R19.htm 20202 - Disclosure - Summary of Significant Accounting Policies (Policy) Sheet http://www.atlasenergy.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicy Summary of Significant Accounting Policies (Policy) false false R20.htm 30303 - Disclosure - Participation in Revenues and Costs (Tables) Sheet http://www.atlasenergy.com/role/DisclosureParticipationInRevenuesAndCostsTables Participation in Revenues and Costs (Tables) false false R21.htm 30403 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://www.atlasenergy.com/role/DisclosurePropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) false false R22.htm 30503 - Disclosure - Asset Retirement Obligation (Tables) Sheet http://www.atlasenergy.com/role/DisclosureAssetRetirementObligationTables Asset Retirement Obligation (Tables) false false R23.htm 30603 - Disclosure - Derivative Instruments (Tables) Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstrumentsTables Derivative Instruments (Tables) false false R24.htm 30703 - Disclosure - Fair Value of Financial Instruments (Tables) Sheet http://www.atlasenergy.com/role/DisclosureFairValueOfFinancialInstrumentsTables Fair Value of Financial Instruments (Tables) false false R25.htm 31103 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) (Tables) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnauditedTables Natural Gas And Oil Producing Activities (Unaudited) (Tables) false false R26.htm 40101 - Disclosure - Basis Of Presentation (Details) Sheet http://www.atlasenergy.com/role/DisclosureBasisOfPresentationDetails Basis Of Presentation (Details) false false R27.htm 40201 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) Sheet http://www.atlasenergy.com/role/DisclosureSummaryOfSignificantAccountingPoliciesNarrativeDetails Summary of Significant Accounting Policies (Narrative) (Details) false false R28.htm 40301 - Disclosure - Participation in Revenues and Costs (Details) Sheet http://www.atlasenergy.com/role/DisclosureParticipationInRevenuesAndCostsDetails Participation in Revenues and Costs (Details) false false R29.htm 40401 - Disclosure - Property, Plant and Equipment (Details) Sheet http://www.atlasenergy.com/role/DisclosurePropertyPlantAndEquipmentDetails Property, Plant and Equipment (Details) false false R30.htm 40501 - Disclosure - Asset Retirement Obligation (Details) Sheet http://www.atlasenergy.com/role/DisclosureAssetRetirementObligationDetails Asset Retirement Obligation (Details) false false R31.htm 40601 - Disclosure - Derivative Instruments (Narrative) (Details) Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstrumentsNarrativeDetails Derivative Instruments (Narrative) (Details) false false R32.htm 40602 - Disclosure - Derivative Instruments (Commodity Derivatives) (Details) Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstrumentsCommodityDerivativesDetails Derivative Instruments (Commodity Derivatives) (Details) false false R33.htm 40603 - Disclosure - Derivative Instruments (Effects of Derivative Instruments on Statements of Operations) (Details) Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstrumentsEffectsOfDerivativeInstrumentsOnStatementsOfOperationsDetails Derivative Instruments (Effects of Derivative Instruments on Statements of Operations) (Details) false false R34.htm 40604 - Disclosure - Derivative Instruments (Gross Fair Values of Receivable and Payable Affiliate Balances) (Details) Sheet http://www.atlasenergy.com/role/DisclosureDerivativeInstrumentsGrossFairValuesOfReceivableAndPayableAffiliateBalancesDetails Derivative Instruments (Gross Fair Values of Receivable and Payable Affiliate Balances) (Details) false false R35.htm 40701 - Disclosure - Fair Value of Financial Instruments (Narrative) (Details) Sheet http://www.atlasenergy.com/role/DisclosureFairValueOfFinancialInstrumentsNarrativeDetails Fair Value of Financial Instruments (Narrative) (Details) false false R36.htm 40702 - Disclosure - Fair Value of Financial Instruments (Assets Measured at Fair Value on a Non-Recurring Basis) (Details) Sheet http://www.atlasenergy.com/role/DisclosureFairValueOfFinancialInstrumentsAssetsMeasuredAtFairValueOnNonRecurringBasisDetails Fair Value of Financial Instruments (Assets Measured at Fair Value on a Non-Recurring Basis) (Details) false false R37.htm 40703 - Disclosure - Fair Value of Financial Instruments (Fair Value of Derivative Instruments) (Details) Sheet http://www.atlasenergy.com/role/DisclosureFairValueOfFinancialInstrumentsFairValueOfDerivativeInstrumentsDetails Fair Value of Financial Instruments (Fair Value of Derivative Instruments) (Details) false false R38.htm 40801 - Disclosure - Certain Relationships and Related Party Transactions (Details) Sheet http://www.atlasenergy.com/role/DisclosureCertainRelationshipsAndRelatedPartyTransactionsDetails Certain Relationships and Related Party Transactions (Details) false false R39.htm 40901 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.atlasenergy.com/role/DisclosureCommitmentsAndContingenciesDetails Commitments and Contingencies (Details) false false R40.htm 41101 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) (Changes In Proved Reserve Quantities) (Details) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnauditedChangesInProvedReserveQuantitiesDetails Natural Gas And Oil Producing Activities (Unaudited) (Changes In Proved Reserve Quantities) (Details) false false R41.htm 41102 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) (Capitalized Costs Relating to Oil and Gas Producing Activities) (Details) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnauditedCapitalizedCostsRelatingToOilAndGasProducingActivitiesDetails Natural Gas And Oil Producing Activities (Unaudited) (Capitalized Costs Relating to Oil and Gas Producing Activities) (Details) false false R42.htm 41103 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) (Results of Operations for Oil and Gas Producing Activities) (Details) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnauditedResultsOfOperationsForOilAndGasProducingActivitiesDetails Natural Gas And Oil Producing Activities (Unaudited) (Results of Operations for Oil and Gas Producing Activities) (Details) false false R43.htm 41104 - Disclosure - Natural Gas And Oil Producing Activities (Unaudited) (Standardized Measure Of Future Cash Flows) (Details) Sheet http://www.atlasenergy.com/role/DisclosureNaturalGasAndOilProducingActivitiesUnauditedStandardizedMeasureOfFutureCashFlowsDetails Natural Gas And Oil Producing Activities (Unaudited) (Standardized Measure Of Future Cash Flows) (Details) false false All Reports Book All Reports Process Flow-Through: 00100 - Statement - Balance Sheets Process Flow-Through: Removing column 'Dec. 31, 2010' Process Flow-Through: 00105 - Statement - Balance Sheets (Parenthetical) Process Flow-Through: 00200 - Statement - Statements of Operations Process Flow-Through: 00300 - Statement - Statements Of Comprehensive (Loss) Income Process Flow-Through: 00500 - Statement - Statements of Cash Flows ck0001432985-20121231.xml ck0001432985-20121231.xsd ck0001432985-20121231_cal.xml ck0001432985-20121231_def.xml ck0001432985-20121231_lab.xml ck0001432985-20121231_pre.xml true true