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<!-- Field: Doc-Info; Name: Source; Value: REAF 0619 10Q.xfr; Date: 2019%2D08%2D01T01:40:17Z --> |
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| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" roleURI="http://www.xbrl.org/2009/role/negatedLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" roleURI="http://www.xbrl.org/2009/role/negatedNetLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel"/> |
| <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" roleURI="http://www.xbrl.org/2009/role/netLabel"/> |
| <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnerCapitalComponentsAxis" xlink:label="us-gaap_PartnerCapitalComponentsAxis"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnerCapitalComponentsAxis" xlink:to="us-gaap_PartnerCapitalComponentsAxis_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnerCapitalComponentsAxis_lbl" xml:lang="en-US"> Partner Capital Components [Axis] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_SharesOfLlcInterestMember" xlink:label="cik1457919_SharesOfLlcInterestMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SharesOfLlcInterestMember" xlink:to="cik1457919_SharesOfLlcInterestMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_SharesOfLlcInterestMember_lbl" xml:lang="en-US"> # of Shares [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_FundManagerMember" xlink:label="cik1457919_FundManagerMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_FundManagerMember" xlink:to="cik1457919_FundManagerMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_FundManagerMember_lbl" xml:lang="en-US"> Manager [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_FundShareholdersMember" xlink:label="cik1457919_FundShareholdersMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_FundShareholdersMember" xlink:to="cik1457919_FundShareholdersMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_FundShareholdersMember_lbl" xml:lang="en-US"> Shareholders [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US"> Subsequent Event Type [Axis] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="us-gaap_SubsequentEventMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US"> Subsequent Event [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="us-gaap_FinancialInstrumentAxis"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentAxis" xlink:to="us-gaap_FinancialInstrumentAxis_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xml:lang="en-US"> Financial Instrument [Axis] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_GovernmentNationalMortgageAssociationSecuritiesMaturingJulyTwoThousandFortyOneMember" xlink:label="cik1457919_GovernmentNationalMortgageAssociationSecuritiesMaturingJulyTwoThousandFortyOneMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_GovernmentNationalMortgageAssociationSecuritiesMaturingJulyTwoThousandFortyOneMember" xlink:to="cik1457919_GovernmentNationalMortgageAssociationSecuritiesMaturingJulyTwoThousandFortyOneMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_GovernmentNationalMortgageAssociationSecuritiesMaturingJulyTwoThousandFortyOneMember_lbl" xml:lang="en-US"> GNMA July 2041 [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_AccumulatedOtherComprehensiveIncomeLossMember" xlink:label="cik1457919_AccumulatedOtherComprehensiveIncomeLossMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_AccumulatedOtherComprehensiveIncomeLossMember" xlink:to="cik1457919_AccumulatedOtherComprehensiveIncomeLossMember_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_AccumulatedOtherComprehensiveIncomeLossMember_lbl" xml:lang="en-US"> Accumulated Other Comprehensive Income [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_DocumentAndEntityInformationAbstract" xlink:label="cik1457919_DocumentAndEntityInformationAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_DocumentAndEntityInformationAbstract" xlink:to="cik1457919_DocumentAndEntityInformationAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US"> Document And Entity Information Abstract </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="dei_DocumentType"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentType_lbl" xml:lang="en-US"> Document Type </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US"> Amendment Flag </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US"> Document Period End Date </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US"> Entity Registrant Name </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US"> Entity Central Index Key </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US"> Current Fiscal Year End Date </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US"> Document Fiscal Year Focus </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US"> Document Fiscal Period Focus </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US"> Entity Filer Category </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US"> Entity Small Business </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US"> Entity Emerging Growth Company </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="dei_EntityFileNumber"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFileNumber_lbl" xml:lang="en-US"> Entity File Number </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US"> Entity Interactive Data Current </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentQuarterlyReport" xlink:label="dei_DocumentQuarterlyReport"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentQuarterlyReport" xlink:to="dei_DocumentQuarterlyReport_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentQuarterlyReport_lbl" xml:lang="en-US"> Document Quarterly Report </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentTransitionReport" xlink:label="dei_DocumentTransitionReport"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentTransitionReport" xlink:to="dei_DocumentTransitionReport_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentTransitionReport_lbl" xml:lang="en-US"> Document Transition Report </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US"> Entity Current Reporting Status </link:label> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="dei_EntityIncorporationStateCountryCode"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US"> Assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US"> Current assets: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US"> Cash and cash equivalents </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="us-gaap_AccountsReceivableNetCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xml:lang="en-US"> Production receivable </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromAffiliateCurrent" xlink:label="us-gaap_DueFromAffiliateCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueFromAffiliateCurrent" xlink:to="us-gaap_DueFromAffiliateCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DueFromAffiliateCurrent_lbl" xml:lang="en-US"> Due from affiliate (Note 2) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="us-gaap_OtherAssetsCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsCurrent" xlink:to="us-gaap_OtherAssetsCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsCurrent_lbl" xml:lang="en-US"> Other current assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsCurrent_lbl" xml:lang="en-US"> Total current assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_SalvageFundNoncurrent" xlink:label="cik1457919_SalvageFundNoncurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SalvageFundNoncurrent" xlink:to="cik1457919_SalvageFundNoncurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_SalvageFundNoncurrent_lbl" xml:lang="en-US"> Salvage fund </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xml:lang="en-US"> Oil and gas properties: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod" xlink:label="us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod" xlink:to="us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProvedOilAndGasPropertySuccessfulEffortMethod_lbl" xml:lang="en-US"> Proved properties </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization" xlink:to="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization_lbl" xml:lang="en-US"> Less: accumulated depletion and amortization </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OilAndGasPropertySuccessfulEffortMethodNet" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet" xlink:to="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet_lbl" xml:lang="en-US"> Total oil and gas properties, net </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US"> Total assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US"> Liabilities and Members' Capital </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US"> Current liabilities: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xml:lang="en-US"> Due to operators </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xml:lang="en-US"> Accrued expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="us-gaap_LongTermDebtCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xml:lang="en-US"> Current portion of long-term borrowings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US"> Total current liabilities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="us-gaap_LongTermDebtNoncurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xml:lang="en-US"> Long-term borrowings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent" xlink:label="us-gaap_AssetRetirementObligationsNoncurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligationsNoncurrent" xlink:to="us-gaap_AssetRetirementObligationsNoncurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligationsNoncurrent_lbl" xml:lang="en-US"> Asset retirement obligations </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US"> Total liabilities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US"> Commitments and contingencies (Note 4) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAbstract" xlink:label="us-gaap_PartnersCapitalAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAbstract" xlink:to="us-gaap_PartnersCapitalAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAbstract_lbl" xml:lang="en-US"> Members' capital: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ManagerDistributions" xlink:label="cik1457919_ManagerDistributions"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerDistributions" xlink:to="cik1457919_ManagerDistributions_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik1457919_ManagerDistributions_lbl" xml:lang="en-US"> Distributions </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ManagerRetainedEarningsAccumulatedDeficit" xlink:label="cik1457919_ManagerRetainedEarningsAccumulatedDeficit"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerRetainedEarningsAccumulatedDeficit" xlink:to="cik1457919_ManagerRetainedEarningsAccumulatedDeficit_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ManagerRetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US"> Retained earnings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ManagersCapital" xlink:label="cik1457919_ManagersCapital"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagersCapital" xlink:to="cik1457919_ManagersCapital_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik1457919_ManagersCapital_lbl" xml:lang="en-US"> Manager's total </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersCapitalContributions" xlink:label="cik1457919_ShareholdersCapitalContributions"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersCapitalContributions" xlink:to="cik1457919_ShareholdersCapitalContributions_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersCapitalContributions_lbl" xml:lang="en-US"> Capital contributions (250 shares authorized; 207.7026 issued and outstanding) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersSyndicationCosts" xlink:label="cik1457919_ShareholdersSyndicationCosts"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersSyndicationCosts" xlink:to="cik1457919_ShareholdersSyndicationCosts_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik1457919_ShareholdersSyndicationCosts_lbl" xml:lang="en-US"> Syndication costs </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersDistributions" xlink:label="cik1457919_ShareholdersDistributions"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersDistributions" xlink:to="cik1457919_ShareholdersDistributions_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik1457919_ShareholdersDistributions_lbl" xml:lang="en-US"> Distributions </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit" xlink:label="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit" xlink:to="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US"> Retained earnings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersCapital" xlink:label="cik1457919_ShareholdersCapital"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersCapital" xlink:to="cik1457919_ShareholdersCapital_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik1457919_ShareholdersCapital_lbl" xml:lang="en-US"> Shareholders' total </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xml:lang="en-US"> Accumulated other comprehensive income </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US"> Total members' capital </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US"> Total liabilities and members' capital </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_LlcMembershipInterestSharesAuthorized" xlink:label="cik1457919_LlcMembershipInterestSharesAuthorized"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesAuthorized" xlink:to="cik1457919_LlcMembershipInterestSharesAuthorized_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_LlcMembershipInterestSharesAuthorized_lbl" xml:lang="en-US"> Shares authorized </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_LlcMembershipInterestSharesIssued" xlink:label="cik1457919_LlcMembershipInterestSharesIssued"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesIssued" xlink:to="cik1457919_LlcMembershipInterestSharesIssued_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_LlcMembershipInterestSharesIssued_lbl" xml:lang="en-US"> Shares issued </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_LlcMembershipInterestSharesOutstanding" xlink:label="cik1457919_LlcMembershipInterestSharesOutstanding"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesOutstanding" xlink:to="cik1457919_LlcMembershipInterestSharesOutstanding_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_LlcMembershipInterestSharesOutstanding_lbl" xml:lang="en-US"> Shares outstanding </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US"> Income Statement [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_RevenuesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenuesAbstract_lbl" xml:lang="en-US"> Revenue </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xml:lang="en-US"> Oil and gas revenue </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_OtherRevenue" xlink:label="cik1457919_OtherRevenue"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_OtherRevenue" xlink:to="cik1457919_OtherRevenue_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_OtherRevenue_lbl" xml:lang="en-US"> Other revenue </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US"> Total revenue </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US"> Expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions" xlink:label="us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions" xlink:to="us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions_lbl" xml:lang="en-US"> Depletion and amortization </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="us-gaap_OperatingCostsAndExpenses"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingCostsAndExpenses" xlink:to="us-gaap_OperatingCostsAndExpenses_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingCostsAndExpenses_lbl" xml:lang="en-US"> Operating expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ManagementFeesToAffiliate" xlink:label="cik1457919_ManagementFeesToAffiliate"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagementFeesToAffiliate" xlink:to="cik1457919_ManagementFeesToAffiliate_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ManagementFeesToAffiliate_lbl" xml:lang="en-US"> Management fees to affiliate </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US"> General and administrative expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US"> Total expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US"> Income (loss) from operations </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:to="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xml:lang="en-US"> Interest expense, net </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net income (loss) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xml:lang="en-US"> Other comprehensive income (loss) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xml:lang="en-US"> Unrealized gain (loss) on marketable securities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US"> Total comprehensive income (loss) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ManagerInterestInNetIncomeLossAbstract" xlink:label="cik1457919_ManagerInterestInNetIncomeLossAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerInterestInNetIncomeLossAbstract" xlink:to="cik1457919_ManagerInterestInNetIncomeLossAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ManagerInterestInNetIncomeLossAbstract_lbl" xml:lang="en-US"> Manager Interest </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_NetIncomeLossManagerInterest" xlink:label="cik1457919_NetIncomeLossManagerInterest"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossManagerInterest" xlink:to="cik1457919_NetIncomeLossManagerInterest_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_NetIncomeLossManagerInterest_lbl" xml:lang="en-US"> Net income </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ShareholdersInterestInNetIncomeLossAbstract" xlink:label="cik1457919_ShareholdersInterestInNetIncomeLossAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersInterestInNetIncomeLossAbstract" xlink:to="cik1457919_ShareholdersInterestInNetIncomeLossAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersInterestInNetIncomeLossAbstract_lbl" xml:lang="en-US"> Shareholder Interest </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_NetIncomeLossShareholderInterest" xlink:label="cik1457919_NetIncomeLossShareholderInterest"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossShareholderInterest" xlink:to="cik1457919_NetIncomeLossShareholderInterest_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_NetIncomeLossShareholderInterest_lbl" xml:lang="en-US"> Net income (loss) </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_NetIncomeLossPerShareShareholderInterest" xlink:label="cik1457919_NetIncomeLossPerShareShareholderInterest"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossPerShareShareholderInterest" xlink:to="cik1457919_NetIncomeLossPerShareShareholderInterest_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_NetIncomeLossPerShareShareholderInterest_lbl" xml:lang="en-US"> Net income (loss) per share </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US"> Statement [Table] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US"> Statement [Line Items] </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquity_2_lbl" xml:lang="en-US"> Balances </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesOutstanding" xlink:to="cik1457919_LlcMembershipInterestSharesOutstanding_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="cik1457919_LlcMembershipInterestSharesOutstanding_2_lbl" xml:lang="en-US"> Balances, shares </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAccountDistributions" xlink:label="us-gaap_PartnersCapitalAccountDistributions"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountDistributions" xlink:to="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xml:lang="en-US"> Distributions </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_2_lbl" xml:lang="en-US"> Net income (loss) </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2_lbl" xml:lang="en-US"> Other comprehensive loss </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquity_3_lbl" xml:lang="en-US"> Balances </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesOutstanding" xlink:to="cik1457919_LlcMembershipInterestSharesOutstanding_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="cik1457919_LlcMembershipInterestSharesOutstanding_3_lbl" xml:lang="en-US"> Balances, shares </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Cash flows from operating activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Adjustments to reconcile net income (loss) to net cash provided by operating activities: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="us-gaap_AssetRetirementObligationAccretionExpense"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligationAccretionExpense" xlink:to="us-gaap_AssetRetirementObligationAccretionExpense_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligationAccretionExpense_lbl" xml:lang="en-US"> Accretion expense </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xml:lang="en-US"> Amortization of debt discounts </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US"> Changes in assets and liabilities: </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US"> (Increase) decrease in production receivable </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:label="us-gaap_IncreaseDecreaseDueFromAffiliates"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:to="us-gaap_IncreaseDecreaseDueFromAffiliates_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseDueFromAffiliates_lbl" xml:lang="en-US"> Decrease in due from affiliate </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl" xml:lang="en-US"> Decrease in other current assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xml:lang="en-US"> Decrease in due to operators </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xml:lang="en-US"> Increase (decrease) in accrued expenses </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAssetRetirementObligations" xlink:label="us-gaap_IncreaseDecreaseInAssetRetirementObligations"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAssetRetirementObligations" xlink:to="us-gaap_IncreaseDecreaseInAssetRetirementObligations_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAssetRetirementObligations_lbl" xml:lang="en-US"> Settlement of asset retirement obligations </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US"> Net cash provided by operating activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US"> Cash flows from investing activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties" xlink:label="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties" xlink:to="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_lbl" xml:lang="en-US"> Capital expenditures for oil and gas properties </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_ProceedsFromInvestmentsInSalvageFundNet" xlink:label="cik1457919_ProceedsFromInvestmentsInSalvageFundNet"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ProceedsFromInvestmentsInSalvageFundNet" xlink:to="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_lbl" xml:lang="en-US"> Increase in salvage fund </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US"> Net cash used in investing activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US"> Cash flows from financing activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xml:lang="en-US"> Repayments of long-term borrowings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfCapitalDistribution" xlink:label="us-gaap_PaymentsOfCapitalDistribution"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfCapitalDistribution" xlink:to="us-gaap_PaymentsOfCapitalDistribution_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsOfCapitalDistribution_lbl" xml:lang="en-US"> Distributions </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US"> Net cash used in financing activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xml:lang="en-US"> Net (decrease) increase in cash and cash equivalents </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xml:lang="en-US"> Cash and cash equivalents, beginning of period </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_3_lbl" xml:lang="en-US"> Cash and cash equivalents, end of period </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowElementsAbstract" xlink:to="us-gaap_SupplementalCashFlowElementsAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract_lbl" xml:lang="en-US"> Supplemental disclosure of cash flow information </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US"> Cash paid for interest </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US"> Supplemental disclosure of non-cash investing activities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:to="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xml:lang="en-US"> Due to operators for accrued capital expenditures for oil and gas properties </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:to="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xml:lang="en-US"> Organization and Summary of Significant Accounting Policies </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="us-gaap_RelatedPartyTransactionsAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xml:lang="en-US"> Related Party Transactions [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xml:lang="en-US"> Related Parties </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="us-gaap_DebtDisclosureAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_DebtDisclosureAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xml:lang="en-US"> Debt Disclosure [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="us-gaap_DebtDisclosureTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureTextBlock" xlink:to="us-gaap_DebtDisclosureTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xml:lang="en-US"> Credit Agreement - Beta Project Financing </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xml:lang="en-US"> Commitments and Contingencies Disclosure [Abstract] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US"> Commitments and Contingencies </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_SubsequentEventAbstract" xlink:label="cik1457919_SubsequentEventAbstract"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SubsequentEventAbstract" xlink:to="cik1457919_SubsequentEventAbstract_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_SubsequentEventAbstract_lbl" xml:lang="en-US"> Subsequent Event </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xml:lang="en-US"> Subsequent Event </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Basis of Presentation </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US"> Use of Estimates </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:to="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Fair Value Measurements </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_SalvageFundPolicyTextBlock" xlink:label="cik1457919_SalvageFundPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SalvageFundPolicyTextBlock" xlink:to="cik1457919_SalvageFundPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_SalvageFundPolicyTextBlock_lbl" xml:lang="en-US"> Salvage Fund </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetRetirementObligationsPolicy" xlink:label="us-gaap_AssetRetirementObligationsPolicy"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetRetirementObligationsPolicy" xlink:to="us-gaap_AssetRetirementObligationsPolicy_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetRetirementObligationsPolicy_lbl" xml:lang="en-US"> Asset Retirement Obligations </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_RevenueRecognitionPoliciesPolicyTextBlock" xlink:label="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock" xlink:to="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock_lbl" xml:lang="en-US"> Revenue Recognition </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:to="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_lbl" xml:lang="en-US"> Impairment of Long-Lived Assets </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Recent Accounting Pronouncements </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:to="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_lbl" xml:lang="en-US"> Schedule of Available-For-Sale Securities </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesAmortizedCost_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost_lbl" xml:lang="en-US"> Amortized Cost </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:to="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xml:lang="en-US"> Gross Unrealized Gains </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="us-gaap_AvailableForSaleSecurities"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableForSaleSecurities_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecurities_lbl" xml:lang="en-US"> Fair Value </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_AnnualManagementFeePercentageRate" xlink:label="cik1457919_AnnualManagementFeePercentageRate"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_AnnualManagementFeePercentageRate" xlink:to="cik1457919_AnnualManagementFeePercentageRate_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_AnnualManagementFeePercentageRate_lbl" xml:lang="en-US"> Annual management fee percentage rate </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagementFeesToAffiliate" xlink:to="cik1457919_ManagementFeesToAffiliate_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik1457919_ManagementFeesToAffiliate_2_lbl" xml:lang="en-US"> Annual management fees paid to Fund Manager </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager" xlink:label="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager" xlink:to="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager_lbl" xml:lang="en-US"> Percentage of total distributions allocated to Fund Manager </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromRelatedParties" xlink:label="us-gaap_RevenueFromRelatedParties"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromRelatedParties" xlink:to="us-gaap_RevenueFromRelatedParties_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromRelatedParties_lbl" xml:lang="en-US"> Other revenue from affiliate </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueFromAffiliateCurrent" xlink:to="us-gaap_DueFromAffiliateCurrent_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DueFromAffiliateCurrent_2_lbl" xml:lang="en-US"> Due from affiliate </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US"> Long-term borrowings </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFairValue" xlink:label="us-gaap_DebtInstrumentFairValue"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFairValue" xlink:to="us-gaap_DebtInstrumentFairValue_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentFairValue_lbl" xml:lang="en-US"> Fair value of debt </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US"> Interest rate </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage" xlink:label="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage" xlink:to="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage_lbl" xml:lang="en-US"> Periodic payment, fixed percentage </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_OverridingRoyaltyInterestRate" xlink:label="cik1457919_OverridingRoyaltyInterestRate"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_OverridingRoyaltyInterestRate" xlink:to="cik1457919_OverridingRoyaltyInterestRate_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_OverridingRoyaltyInterestRate_lbl" xml:lang="en-US"> Overriding royalty interest </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscount" xlink:to="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xml:lang="en-US"> Unamortized debt discounts </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="us-gaap_AmortizationOfFinancingCosts"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCosts" xlink:to="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xml:lang="en-US"> Amortization of financing costs </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPayableCurrentAndNoncurrent" xlink:to="us-gaap_InterestPayableCurrentAndNoncurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent_lbl" xml:lang="en-US"> Accrued interest </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseLongTermDebt" xlink:label="us-gaap_InterestExpenseLongTermDebt"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseLongTermDebt" xlink:to="us-gaap_InterestExpenseLongTermDebt_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpenseLongTermDebt_lbl" xml:lang="en-US"> Interest expense </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermPurchaseCommitmentAmount" xlink:label="us-gaap_LongTermPurchaseCommitmentAmount"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentAmount" xlink:to="us-gaap_LongTermPurchaseCommitmentAmount_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermPurchaseCommitmentAmount_lbl" xml:lang="en-US"> Commitments for the drilling and development of investment properties </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments" xlink:label="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments" xlink:to="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments_lbl" xml:lang="en-US"> Commitments for asset retirement obligations included in estimated capital commitments </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths" xlink:label="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths" xlink:to="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths_lbl" xml:lang="en-US"> Commitments for the drilling and development of investment properties expected to be incurred in the next 12 months </link:label> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OilAndGasJointInterestBillingReceivablesCurrent" xlink:label="us-gaap_OilAndGasJointInterestBillingReceivablesCurrent"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OilAndGasJointInterestBillingReceivablesCurrent" xlink:to="us-gaap_OilAndGasJointInterestBillingReceivablesCurrent_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OilAndGasJointInterestBillingReceivablesCurrent_lbl" xml:lang="en-US"> Other receivable </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_AnnualManagementFeePercentageRate" xlink:to="cik1457919_AnnualManagementFeePercentageRate_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_AnnualManagementFeePercentageRate_doc" xml:lang="en-US"> The annual rate for distributions paid to the Fund Manager as a percentage of capital contributions, net of cumulative dry-hole costs incurred. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments" xlink:to="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_CommitmentsForAssetRetirementObligationsIncludedInEstimatedCapitalCommitments_doc" xml:lang="en-US"> Commitments for asset retirement obligations included in estimated capital commitments. </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_EugeneIslandThreeFortySixThreeFortySevenAndCobaltProjectMember" xlink:label="cik1457919_EugeneIslandThreeFortySixThreeFortySevenAndCobaltProjectMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_EugeneIslandThreeFortySixThreeFortySevenAndCobaltProjectMember" xlink:to="cik1457919_EugeneIslandThreeFortySixThreeFortySevenAndCobaltProjectMember_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_EugeneIslandThreeFortySixThreeFortySevenAndCobaltProjectMember_doc" xml:lang="en-US"> Eugene Island Three Forty Six Three Forty Seven And Cobalt Project [Member] </link:label> |
| | <link:loc xlink:type="locator" xlink:href="cik1457919-20190630.xsd#cik1457919_EugeneIslandThreeHundredFortySixThreeHundredFortySevenMember" xlink:label="cik1457919_EugeneIslandThreeHundredFortySixThreeHundredFortySevenMember"/> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_EugeneIslandThreeHundredFortySixThreeHundredFortySevenMember" xlink:to="cik1457919_EugeneIslandThreeHundredFortySixThreeHundredFortySevenMember_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_EugeneIslandThreeHundredFortySixThreeHundredFortySevenMember_doc" xml:lang="en-US"> Eugene Island Three Hundred Forty Six Three Hundred Forty Seven [Member] </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesAuthorized" xlink:to="cik1457919_LlcMembershipInterestSharesAuthorized_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_LlcMembershipInterestSharesAuthorized_doc" xml:lang="en-US"> LLC Membership Interest, Shares Authorized </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesIssued" xlink:to="cik1457919_LlcMembershipInterestSharesIssued_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_LlcMembershipInterestSharesIssued_doc" xml:lang="en-US"> Llc Membership Interest, Shares Issued </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LlcMembershipInterestSharesOutstanding" xlink:to="cik1457919_LlcMembershipInterestSharesOutstanding_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_LlcMembershipInterestSharesOutstanding_doc" xml:lang="en-US"> Llc Membership Interest, Shares Outstanding </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths" xlink:to="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_LongTermPurchaseCommitmentAmountExpectedToBeIncurredInNextTwelveMonths_doc" xml:lang="en-US"> Long-Term Purchase Commitment Amount Expected To Be Incurred In Next Twelve Months. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagementFeesToAffiliate" xlink:to="cik1457919_ManagementFeesToAffiliate_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ManagementFeesToAffiliate_doc" xml:lang="en-US"> The fees paid to the Manager of the Fund for the management of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerDistributions" xlink:to="cik1457919_ManagerDistributions_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ManagerDistributions_doc" xml:lang="en-US"> Distributions to the Manager of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerRetainedEarningsAccumulatedDeficit" xlink:to="cik1457919_ManagerRetainedEarningsAccumulatedDeficit_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ManagerRetainedEarningsAccumulatedDeficit_doc" xml:lang="en-US"> The cumulative earnings (or deficit) for the Manager of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagersCapital" xlink:to="cik1457919_ManagersCapital_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ManagersCapital_doc" xml:lang="en-US"> The total amount of equity attributable to the Manager of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossManagerInterest" xlink:to="cik1457919_NetIncomeLossManagerInterest_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_NetIncomeLossManagerInterest_doc" xml:lang="en-US"> Manager's interest in net income (loss). </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossPerShareShareholderInterest" xlink:to="cik1457919_NetIncomeLossPerShareShareholderInterest_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_NetIncomeLossPerShareShareholderInterest_doc" xml:lang="en-US"> The net income (loss) per share attributable to the shareholders. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_NetIncomeLossShareholderInterest" xlink:to="cik1457919_NetIncomeLossShareholderInterest_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_NetIncomeLossShareholderInterest_doc" xml:lang="en-US"> Shareholders' interest in net income (loss). </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_OverridingRoyaltyInterestRate" xlink:to="cik1457919_OverridingRoyaltyInterestRate_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_OverridingRoyaltyInterestRate_doc" xml:lang="en-US"> Overriding royalty interest rate. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties" xlink:to="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_doc" xml:lang="en-US"> The cash inflow or outflow associated with the purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager" xlink:to="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_PercentageOfTotalDistributionsAllocatedToFundManager_doc" xml:lang="en-US"> Percentage of total distributions allocated to Fund Manager. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ProceedsFromInvestmentsInSalvageFundNet" xlink:to="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_doc" xml:lang="en-US"> The cash inflow or outflow relating to salvage fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SalvageFundNoncurrent" xlink:to="cik1457919_SalvageFundNoncurrent_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_SalvageFundNoncurrent_doc" xml:lang="en-US"> Salvage Fund Noncurrent </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersCapital" xlink:to="cik1457919_ShareholdersCapital_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ShareholdersCapital_doc" xml:lang="en-US"> The total amount of equity attributable to the shareholders of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersCapitalContributions" xlink:to="cik1457919_ShareholdersCapitalContributions_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ShareholdersCapitalContributions_doc" xml:lang="en-US"> The amount of capital raised from selling shares. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersDistributions" xlink:to="cik1457919_ShareholdersDistributions_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ShareholdersDistributions_doc" xml:lang="en-US"> Distributions to shareholders. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit" xlink:to="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_doc" xml:lang="en-US"> The cumulative earnings (or deficit) for the shareholders of the Fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersSyndicationCosts" xlink:to="cik1457919_ShareholdersSyndicationCosts_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_ShareholdersSyndicationCosts_doc" xml:lang="en-US"> Costs incurred by the Fund in connection with the offering of the Fund's shares, including professional fees, selling expenses and administrative costs payable to the Manager, an affiliate of the Manager and unaffiliated broker-dealers, which are reflected on the Fund's balance sheet as a reduction of shareholders' capital. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SharesOfLlcInterestMember" xlink:to="cik1457919_SharesOfLlcInterestMember_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_SharesOfLlcInterestMember_doc" xml:lang="en-US"> Shares of LLC Interest [Member]. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_FundManagerMember" xlink:to="cik1457919_FundManagerMember_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_FundManagerMember_doc" xml:lang="en-US"> Fund Manager [Member] </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_FundShareholdersMember" xlink:to="cik1457919_FundShareholdersMember_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_FundShareholdersMember_doc" xml:lang="en-US"> Shareholder of the Fund </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock" xlink:to="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_RevenueRecognitionPoliciesPolicyTextBlock_doc" xml:lang="en-US"> Disclosure of accounting policy for revenue recognition. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_OtherRevenue" xlink:to="cik1457919_OtherRevenue_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_OtherRevenue_doc" xml:lang="en-US"> Total amount of revenue classified as "other" for the period. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage" xlink:to="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_DebtInstrumentPeriodicPaymentFixedPercentage_doc" xml:lang="en-US"> The fixed percentage of net revenues that determines the periodic payment amount on the debt instrument. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_SalvageFundPolicyTextBlock" xlink:to="cik1457919_SalvageFundPolicyTextBlock_doc" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik1457919_SalvageFundPolicyTextBlock_doc" xml:lang="en-US"> Disclosure of accounting policy for the salvage fund. </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_2_lbl" xml:lang="en-US"> Assets, Current </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization" xlink:to="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization_2_lbl" xml:lang="en-US"> Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion and Amortization </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet" xlink:to="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OilAndGasPropertySuccessfulEffortMethodNet_2_lbl" xml:lang="en-US"> Oil and Gas Property, Successful Effort Method, Net </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_2_lbl" xml:lang="en-US"> Assets [Default Label] </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_2_lbl" xml:lang="en-US"> Liabilities, Current </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_2_lbl" xml:lang="en-US"> Liabilities </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagerDistributions" xlink:to="cik1457919_ManagerDistributions_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ManagerDistributions_3_lbl" xml:lang="en-US"> Manager Distributions </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ManagersCapital" xlink:to="cik1457919_ManagersCapital_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ManagersCapital_3_lbl" xml:lang="en-US"> Managers Capital </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersSyndicationCosts" xlink:to="cik1457919_ShareholdersSyndicationCosts_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersSyndicationCosts_3_lbl" xml:lang="en-US"> Shareholders Syndication Costs </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersDistributions" xlink:to="cik1457919_ShareholdersDistributions_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersDistributions_3_lbl" xml:lang="en-US"> Shareholders Distributions </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit" xlink:to="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersRetainedEarningsAccumulatedDeficit_3_lbl" xml:lang="en-US"> Accumulated deficit </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ShareholdersCapital" xlink:to="cik1457919_ShareholdersCapital_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ShareholdersCapital_3_lbl" xml:lang="en-US"> Shareholders Capital </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_4_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_4_lbl" xml:lang="en-US"> Stockholders' Equity Attributable to Parent </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xml:lang="en-US"> Liabilities and Equity </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_2_lbl" xml:lang="en-US"> Revenues </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpenses_2_lbl" xml:lang="en-US"> Operating Expenses </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_2_lbl" xml:lang="en-US"> Operating Income (Loss) </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_3_lbl" xml:lang="en-US"> Net Income (Loss) Attributable to Parent </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xml:lang="en-US"> Comprehensive Income (Loss), Net of Tax, Attributable to Parent </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PartnersCapitalAccountDistributions" xlink:to="us-gaap_PartnersCapitalAccountDistributions_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PartnersCapitalAccountDistributions_2_lbl" xml:lang="en-US"> Partners' Capital Account, Distributions </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xml:lang="en-US"> Increase (Decrease) in Accounts Receivable </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:to="us-gaap_IncreaseDecreaseDueFromAffiliates_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseDueFromAffiliates_2_lbl" xml:lang="en-US"> Increase (Decrease) Due from Affiliates </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherCurrentAssets_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_2_lbl" xml:lang="en-US"> Increase (Decrease) in Other Current Assets </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties" xlink:to="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_PaymentsForCreditsOfAcquisitionOfOilAndGasProperties_3_lbl" xml:lang="en-US"> PaymentsForCreditsOfAcquisitionOfOilAndGasProperties </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik1457919_ProceedsFromInvestmentsInSalvageFundNet" xlink:to="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_3_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik1457919_ProceedsFromInvestmentsInSalvageFundNet_3_lbl" xml:lang="en-US"> Proceeds From Investments In Salvage Fund Net </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfLongTermDebt_2_lbl" xml:lang="en-US"> Repayments of Long-term Debt </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfCapitalDistribution" xlink:to="us-gaap_PaymentsOfCapitalDistribution_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsOfCapitalDistribution_2_lbl" xml:lang="en-US"> Payments of Capital Distribution </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_2_lbl" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_2_lbl" xml:lang="en-US"> Cash and Cash Equivalents, Period Increase (Decrease) </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventsTextBlock_2_lbl" xml:lang="en-US"> Subsequent Events [Text Block] </link:label> |
| | <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_2_lbl" xlink:type="arc"/> |
| | <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebt_2_lbl" xml:lang="en-US"> Long-term Debt </link:label> |
| | </link:labelLink> |
| </link:linkbase> |