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  <xsd:element abstract="true" id="teso_AdministrativeSubpoenaDepartmentOfTreasuryOfficeOfForeignAssetsControlMember" name="AdministrativeSubpoenaDepartmentOfTreasuryOfficeOfForeignAssetsControlMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_AsiaPacificMember" name="AsiaPacificMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_BusinessAcquisitionLongTermDebtAssumed" name="BusinessAcquisitionLongTermDebtAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_CanadianTopDriveSalesToSudanAsPercentOfTotalRevenue" name="CanadianTopDriveSalesToSudanAsPercentOfTotalRevenue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_CasingDrillingMember" name="CasingDrillingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ClaimForFinesAndPenaltiesRelatedToEquipmentInMexico" name="ClaimForFinesAndPenaltiesRelatedToEquipmentInMexico" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_CurrentAndNonCurrentPortionOfLongTermDebtAndCapitalLeaseObligationsAssumed" name="CurrentAndNonCurrentPortionOfLongTermDebtAndCapitalLeaseObligationsAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_DeferredIncomeTaxes" name="DeferredIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DeferredJobCosts" name="DeferredJobCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DepositPaidToMexicanTaxAuthoritiesForAppeal" name="DepositPaidToMexicanTaxAuthoritiesForAppeal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_DepositsPrepaid" name="DepositsPrepaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DepreciationAndAmortizationExpenseTableTextBlock" name="DepreciationAndAmortizationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_DetailsOfCertainAccountsAbstract" name="DetailsOfCertainAccountsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationDisposalPrice" name="DisposalGroupIncludingDiscontinuedOperationDisposalPrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationToBeCashReceivedAfterTermsAndConditionsMet" name="DisposalGroupIncludingDiscontinuedOperationToBeCashReceivedAfterTermsAndConditionsMet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationTransactionCosts" name="DisposalGroupIncludingDiscontinuedOperationTransactionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationsCashReceivedAtTimeOfSale" name="DisposalGroupIncludingDiscontinuedOperationsCashReceivedAtTimeOfSale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationsCashReceivedSubsequentToTimeOfSale" name="DisposalGroupIncludingDiscontinuedOperationsCashReceivedSubsequentToTimeOfSale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_DrillingEquipmentMember" name="DrillingEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_EuropeAfricaAndMiddleEastMember" name="EuropeAfricaAndMiddleEastMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_ExportationClaimMexicanTaxCourtMember" name="ExportationClaimMexicanTaxCourtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_ForeignWithholdingTaxClaimMember" name="ForeignWithholdingTaxClaimMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_GearBoxHousingForNewEsiModelMember" name="GearBoxHousingForNewEsiModelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_InterestEarnedOnDepositMadeToMexicanTaxAuthorities" name="InterestEarnedOnDepositMadeToMexicanTaxAuthorities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LandBuildingsAndLeaseholdsMember" name="LandBuildingsAndLeaseholdsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LegalSettlementPercentageOfTotalWorldwideTopDriveRequirementsToBePurchasedForSpecifiedPeriod" name="LegalSettlementPercentageOfTotalWorldwideTopDriveRequirementsToBePurchasedForSpecifiedPeriod" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LegalSettlementSpecifiedPeriodOfPurchaseAgreement" name="LegalSettlementSpecifiedPeriodOfPurchaseAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LegalSuitUsDistrictCourtForEasternDistrictOfTexasMarshallDivisionMember" name="LegalSuitUsDistrictCourtForEasternDistrictOfTexasMarshallDivisionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LegalSuitUsDistrictCourtForSouthernDistrictOfTexasMember" name="LegalSuitUsDistrictCourtForSouthernDistrictOfTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilityLetterOfCreditFeePercentage" name="LineOfCreditFacilityLetterOfCreditFeePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilityMaximumBorrowingCapacityReducedByLettersOfCredit" name="LineOfCreditFacilityMaximumBorrowingCapacityReducedByLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilitySwingLineLoansCurrentBorrowingCapacity" name="LineOfCreditFacilitySwingLineLoansCurrentBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_LineOfCreditFacilityTerm" name="LineOfCreditFacilityTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LossContingencyMaximumRatioOfClaimsToCurrentAssets" name="LossContingencyMaximumRatioOfClaimsToCurrentAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_ManufacturingEquipmentMember" name="ManufacturingEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_NetBookValueOfUsedTopDrivesSoldFromRentalFleet" name="NetBookValueOfUsedTopDrivesSoldFromRentalFleet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="teso_NonTradeReceivables1" name="NonTradeReceivables1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_NumberOfAllegedPatentInfringementsDefendant" name="NumberOfAllegedPatentInfringementsDefendant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_NumberOfTopDriveUnitsSold" name="NumberOfTopDriveUnitsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_NumberOfUsedTopDrivesSold" name="NumberOfUsedTopDrivesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_OfficeEquipmentAndOtherMember" name="OfficeEquipmentAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_OtherAccruedLiabilitiesMember" name="OtherAccruedLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_OtherContingenciesMaximumExposureUnderOutstandingLettersOfCredit" name="OtherContingenciesMaximumExposureUnderOutstandingLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant" />
  <xsd:element id="teso_PercentageImpactOnEffectiveTaxRate" name="PercentageImpactOnEffectiveTaxRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_PremiereMember" name="PremiereMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_PrepaidTaxesOtherThanIncome" name="PrepaidTaxesOtherThanIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_ProductWarrantyLineItems" name="ProductWarrantyLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ProductWarrantyUnitsProduced" name="ProductWarrantyUnitsProduced" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_ReassessmentAppealMexicanTaxCourtMember" name="ReassessmentAppealMexicanTaxCourtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_RefundReceivedFromMexicanTaxAuthorities" name="RefundReceivedFromMexicanTaxAuthorities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_RegionalOfficesThatDispatchedTechniciansOutsideUnitedStates" name="RegionalOfficesThatDispatchedTechniciansOutsideUnitedStates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_ResearchEngineeringMember" name="ResearchEngineeringMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ResolutionByMexicanTaxAuthoritiesAdditionalAmountOfInterestAndInflationAdjustmentsOwedAndRetainedForSecondReassessment" name="ResolutionByMexicanTaxAuthoritiesAdditionalAmountOfInterestAndInflationAdjustmentsOwedAndRetainedForSecondReassessment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ReversalForForeignWithholdingTaxClaim" name="ReversalForForeignWithholdingTaxClaim" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_RussiaMember" name="RussiaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_SaleOfOperatingAssetsPolicyTextBlock" name="SaleOfOperatingAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ScheduleOfPrepaidAndOtherCurrentAssetsTableTextBlock" name="ScheduleOfPrepaidAndOtherCurrentAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_ScheduleOfProductWarrantyTable" name="ScheduleOfProductWarrantyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization" name="SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_SouthAmericaMember" name="SouthAmericaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_TaxAssessmentFromNorwegianTaxAuthorities" name="TaxAssessmentFromNorwegianTaxAuthorities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TaxAssessmentNorwegianTaxAuthoritiesMember" name="TaxAssessmentNorwegianTaxAuthoritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TopDriveMember" name="TopDriveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TubularServicesMember" name="TubularServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
