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<?xml version="1.0" encoding="windows-1252"?> |
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ --> |
<!-- Creation Date : 2019-10-25T18:49:17.7835895+00:00 --> |
<!-- Version : 5.0.0.208 --> |
<!-- Package ID : ecc825a0759842b0a9bf3e15c2ff3a54 --> |
<!-- Copyright (c) 2019 Donnelley Financial Solutions, Inc. All Rights Reserved. --> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" order="11880.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" order="12040.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" order="12220.00" priority="2" use="optional"/> |
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| <link:definitionLink xlink:type="extended" xlink:role="http://www.diamondoffshore.com/20190930/taxonomy/role/DisclosureGeneralInformationAdditionalInformationDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent" xlink:type="locator" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiability"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_MajorityShareholderOutstandingCommonStockOwnedPercentage" xlink:type="locator" xlink:label="do_MajorityShareholderOutstandingCommonStockOwnedPercentage"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingStandardsUpdate201602Member" xlink:type="locator" xlink:label="us-gaap_AccountingStandardsUpdate201602Member"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:type="locator" xlink:label="us-gaap_TypeOfAdoptionMember"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:type="locator" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:type="locator" xlink:label="us-gaap_SubsequentEventTypeDomain"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:type="locator" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:type="locator" xlink:label="srt_MaximumMember"/> |
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| | <link:loc xlink:href="do-20190930.xsd#do_CapitalModificationRevenueMember" xlink:type="locator" xlink:label="do_CapitalModificationRevenueMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_MobilizationAndContractPreparationRevenueMember" xlink:type="locator" xlink:label="do_MobilizationAndContractPreparationRevenueMember"/> |
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| <link:roleRef roleURI="http://www.diamondoffshore.com/20190930/taxonomy/role/DisclosureDrillingAndOtherPropertyAndEquipmentAdditionalInformationDetail" xlink:href="do-20190930.xsd#Role_DisclosureDrillingAndOtherPropertyAndEquipmentAdditionalInformationDetail" xlink:type="simple"/> |
| <link:definitionLink xlink:type="extended" xlink:role="http://www.diamondoffshore.com/20190930/taxonomy/role/DisclosureDrillingAndOtherPropertyAndEquipmentAdditionalInformationDetail"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:type="locator" xlink:label="us-gaap_GainLossOnDispositionOfAssets"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentOtherTypesMember" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentOtherTypesMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_SemisubmersibleRigMember" xlink:type="locator" xlink:label="do_SemisubmersibleRigMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:type="locator" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" order="10010.00" priority="2" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis" order="10040.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain" order="10070.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="do_SemisubmersibleRigMember" order="10090.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentOtherTypesMember" order="10110.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_GainLossOnDispositionOfAssets" order="10140.00" priority="2" use="optional"/> |
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| <link:definitionLink xlink:type="extended" xlink:role="http://www.diamondoffshore.com/20190930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"> |
| | <link:loc xlink:href="do-20190930.xsd#do_ContingentLiabilityUnderLettersOfCreditAndOtherBonds" xlink:type="locator" xlink:label="do_ContingentLiabilityUnderLettersOfCreditAndOtherBonds"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingencyAccrualAtCarryingValue" xlink:type="locator" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsUpperLimit" xlink:type="locator" xlink:label="do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsUpperLimit"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsLowerLimit" xlink:type="locator" xlink:label="do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsLowerLimit"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_DeductibleForMarineLiabilityCoverageIncludingPersonalInjuryClaimsPerFirstOccurrence" xlink:type="locator" xlink:label="do_DeductibleForMarineLiabilityCoverageIncludingPersonalInjuryClaimsPerFirstOccurrence"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_UncollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember" xlink:type="locator" xlink:label="do_UncollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_PotentiallyCollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember" xlink:type="locator" xlink:label="do_PotentiallyCollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_ContingentLiabilitiesUnderLettersOfCreditAndBondsMember" xlink:type="locator" xlink:label="do_ContingentLiabilitiesUnderLettersOfCreditAndBondsMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsDomain_2"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCommitmentsAxis" xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsAxis"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesMember" xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:type="locator" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:type="locator" xlink:label="us-gaap_FinancialInstrumentAxis"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesMember" xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:type="locator" xlink:label="us-gaap_BalanceSheetLocationDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:type="locator" xlink:label="us-gaap_BalanceSheetLocationDomain_2"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:type="locator" xlink:label="us-gaap_BalanceSheetLocationAxis"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_PersonalInjuryMember" xlink:type="locator" xlink:label="do_PersonalInjuryMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossFromCatastrophesMember" xlink:type="locator" xlink:label="us-gaap_LossFromCatastrophesMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:type="locator" xlink:label="us-gaap_LossContingencyNatureDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:type="locator" xlink:label="us-gaap_LossContingencyNatureDomain_2"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:type="locator" xlink:label="us-gaap_LossContingenciesByNatureOfContingencyAxis"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_ContingenciesAndCommitmentsTable" xlink:type="locator" xlink:label="do_ContingenciesAndCommitmentsTable"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_ContingenciesAndCommitmentsLineItems" xlink:type="locator" xlink:label="do_ContingenciesAndCommitmentsLineItems"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="do_ContingenciesAndCommitmentsTable" order="10010.00" priority="2" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="do_ContingenciesAndCommitmentsTable" xlink:to="us-gaap_LossContingenciesByNatureOfContingencyAxis" order="10040.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:to="us-gaap_LossContingencyNatureDomain_2" order="10050.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:to="us-gaap_LossContingencyNatureDomain" order="10070.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LossContingencyNatureDomain" xlink:to="us-gaap_LossFromCatastrophesMember" order="10090.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LossContingencyNatureDomain" xlink:to="do_PersonalInjuryMember" order="10190.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="do_ContingenciesAndCommitmentsTable" xlink:to="us-gaap_BalanceSheetLocationAxis" order="10240.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_BalanceSheetLocationAxis" xlink:to="us-gaap_BalanceSheetLocationDomain_2" order="10250.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_BalanceSheetLocationAxis" xlink:to="us-gaap_BalanceSheetLocationDomain" order="10270.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_BalanceSheetLocationDomain" xlink:to="us-gaap_OtherLiabilitiesMember" order="10290.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="do_ContingenciesAndCommitmentsTable" xlink:to="us-gaap_FinancialInstrumentAxis" order="10300.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_FinancialInstrumentAxis" xlink:to="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" order="10330.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:to="us-gaap_AccruedLiabilitiesMember" order="10350.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="do_ContingenciesAndCommitmentsTable" xlink:to="us-gaap_OtherCommitmentsAxis" order="10360.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_OtherCommitmentsAxis" xlink:to="us-gaap_OtherCommitmentsDomain_2" order="10370.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_OtherCommitmentsAxis" xlink:to="us-gaap_OtherCommitmentsDomain" order="10390.00" priority="2" use="optional"/> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherCommitmentsDomain" xlink:to="do_PotentiallyCollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember" order="10430.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherCommitmentsDomain" xlink:to="do_UncollateralizedContingentLiabilityUnderLettersOfCreditAndBondsMember" order="10450.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="do_DeductibleForMarineLiabilityCoverageIncludingPersonalInjuryClaimsPerFirstOccurrence" order="10480.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsLowerLimit" order="10500.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="do_RangeOfDeductibleForLiabilityCoverageForPersonalInjuryClaimsUpperLimit" order="10520.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="us-gaap_LossContingencyAccrualAtCarryingValue" order="10630.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="do_ContingenciesAndCommitmentsLineItems" xlink:to="do_ContingentLiabilityUnderLettersOfCreditAndOtherBonds" order="10780.00" priority="2" use="optional"/> |
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| <link:definitionLink xlink:type="extended" xlink:role="http://www.diamondoffshore.com/20190930/taxonomy/role/DisclosureLeasesAndLeasesCommitmentsAdditionalInformationDetails"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_OperatingLeasePaymentsLeaseNotYetCommenced" xlink:type="locator" xlink:label="do_OperatingLeasePaymentsLeaseNotYetCommenced"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_NumberOfOperatingLeasesNotYetCommenced" xlink:type="locator" xlink:label="do_NumberOfOperatingLeasesNotYetCommenced"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermLeaseCost" xlink:type="locator" xlink:label="us-gaap_ShortTermLeaseCost"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseCost"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionLeaseTerms" xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionLeaseTerms"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidRent" xlink:type="locator" xlink:label="us-gaap_PrepaidRent"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_SaleLeaseBackTransactionRenewalTermDescription" xlink:type="locator" xlink:label="do_SaleLeaseBackTransactionRenewalTermDescription"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasePayments" xlink:type="locator" xlink:label="us-gaap_OperatingLeasePayments"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_LeaseOptionsTerminationPeriod" xlink:type="locator" xlink:label="do_LeaseOptionsTerminationPeriod"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_MooringEquipmentLeaseEnteredInThirdQuarterMember" xlink:type="locator" xlink:label="do_MooringEquipmentLeaseEnteredInThirdQuarterMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_MooringEquipmentLeaseEnteredInFirstQuarterMember" xlink:type="locator" xlink:label="do_MooringEquipmentLeaseEnteredInFirstQuarterMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_MooringEquipmentMember" xlink:type="locator" xlink:label="do_MooringEquipmentMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_SaleAndLeaseBackEquipmentMember" xlink:type="locator" xlink:label="do_SaleAndLeaseBackEquipmentMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionNameDomain" xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionNameDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionNameDomain" xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionNameDomain_2"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionDescriptionAxis" xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionDescriptionAxis"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember" xlink:type="locator" xlink:label="us-gaap_OtherNoncurrentAssetsMember"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable" xlink:type="locator" xlink:label="us-gaap_LesseeLeaseDescriptionTable"/> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LesseeLeaseDescriptionLineItems" xlink:to="us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" order="11210.00" priority="2" use="optional"/> |
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| | <link:loc xlink:href="do-20190930.xsd#do_ReimbursableExpenseMember" xlink:type="locator" xlink:label="do_ReimbursableExpenseMember"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_ContractDrillingMember" xlink:type="locator" xlink:label="do_ContractDrillingMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain" xlink:type="locator" xlink:label="us-gaap_SegmentDomain"/> |
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| | <link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_AU" xlink:type="locator" xlink:label="country_AU"/> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentDomain" xlink:to="do_ContractDrillingMember" order="10210.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentDomain" xlink:to="do_ReimbursableExpenseMember" order="10230.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_AsiaPacificMember" order="10550.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" order="10860.00" priority="2" use="optional"/> |
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| | <link:loc xlink:href="do-20190930.xsd#do_ProceedsFromLossOfHireInsuranceRelatedToEarlyContractTerminations" xlink:type="locator" xlink:label="do_ProceedsFromLossOfHireInsuranceRelatedToEarlyContractTerminations"/> |
| | <link:loc xlink:href="do-20190930.xsd#do_JackUpRigsMember" xlink:type="locator" xlink:label="do_JackUpRigsMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"/> |
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| | <link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_MX" xlink:type="locator" xlink:label="country_MX"/> |
| | <link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:type="locator" xlink:label="country_US"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:type="locator" xlink:label="srt_SegmentGeographicalDomain"/> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_US" order="10090.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_SegmentGeographicalDomain" xlink:to="country_MX" order="10110.00" priority="2" use="optional"/> |
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| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain" order="10150.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="do_JackUpRigsMember" order="10170.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="do_ProceedsFromLossOfHireInsuranceRelatedToEarlyContractTerminations" order="10200.00" priority="2" use="optional"/> |
| | <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="do_NumberOfJackupRigs" order="10220.00" priority="2" use="optional"/> |
| | </link:definitionLink> |
| </link:linkbase> |