﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xsi:schemaLocation="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2012v2.1">
  <ReturnHeader binaryAttachmentCount="0">
    <Timestamp>2013-11-13T10:31:32-06:00</Timestamp>
    <TaxPeriodEndDate>2012-12-31</TaxPeriodEndDate>
    <PreparerFirm>
      <PreparerFirmBusinessName>
        <BusinessNameLine1>ERNST &amp; YOUNG US LLP</BusinessNameLine1>
      </PreparerFirmBusinessName>
      <PreparerFirmUSAddress>
        <AddressLine1>201 MAIN STREET SUITE 1100</AddressLine1>
        <City>FORT WORTH</City>
        <State>TX</State>
        <ZIPCode>76102</ZIPCode>
      </PreparerFirmUSAddress>
    </PreparerFirm>
    <ReturnType>990</ReturnType>
    <TaxPeriodBeginDate>2012-01-01</TaxPeriodBeginDate>
    <Filer>
      <EIN>746296874</EIN>
      <Name>
        <BusinessNameLine1>SCHLUMBERGER GROUP HEALTH CARE TRUST</BusinessNameLine1>
      </Name>
      <InCareOfName>% MARGARET BAILEY</InCareOfName>
      <NameControl>SCHL</NameControl>
      <Phone>7137899600</Phone>
      <USAddress>
        <AddressLine1>3600 BRIARPARK DRIVE 3RD FL</AddressLine1>
        <AddressLine2>Suite MD-4</AddressLine2>
        <City>HOUSTON</City>
        <State>TX</State>
        <ZIPCode>77042</ZIPCode>
      </USAddress>
    </Filer>
    <Officer>
      <Name>MG BAILEY</Name>
      <Title>MANAGER</Title>
      <Phone>8173486073</Phone>
      <DateSigned>2013-11-12</DateSigned>
    </Officer>
    <Preparer>
      <Phone>8173486073</Phone>
    </Preparer>
    <TaxYear>2012</TaxYear>
    <BuildTS>2016-02-24 21:20:13Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCount="3">
    <IRS990 documentId="IRS990" referenceDocumentId="IRS990ScheduleO">
      <NameOfPrincipalOfficerPerson>THE NORTHERN TRUST COMPANY</NameOfPrincipalOfficerPerson>
      <AddressPrincipalOfficerUS>
        <AddressLine1>PO BOX 803878</AddressLine1>
        <City>CHICAGO</City>
        <State>IL</State>
        <ZIPCode>60680</ZIPCode>
      </AddressPrincipalOfficerUS>
      <GrossReceipts>470379426</GrossReceipts>
      <GroupReturnForAffiliates>false</GroupReturnForAffiliates>
      <Organization501c typeOf501cOrganization="9">X</Organization501c>
      <WebSite>N/A</WebSite>
      <TypeOfOrganizationTrust>X</TypeOfOrganizationTrust>
      <YearFormation>1981</YearFormation>
      <StateLegalDomicile>TX</StateLegalDomicile>
      <ActivityOrMissionDescription>PROVIDING HEALTH AND WELFARE BENEFITS.</ActivityOrMissionDescription>
      <NbrVotingMembersGoverningBody>1</NbrVotingMembersGoverningBody>
      <NbrIndependentVotingMembers>0</NbrIndependentVotingMembers>
      <TotalNbrEmployees>0</TotalNbrEmployees>
      <TotalNbrVolunteers>0</TotalNbrVolunteers>
      <TotalGrossUBI>734230</TotalGrossUBI>
      <NetUnrelatedBusinessTxblIncome>4756360</NetUnrelatedBusinessTxblIncome>
      <ContributionsGrantsPriorYear>0</ContributionsGrantsPriorYear>
      <ContributionsGrantsCurrentYear>0</ContributionsGrantsCurrentYear>
      <ProgramServiceRevenuePriorYear>303415724</ProgramServiceRevenuePriorYear>
      <ProgramServiceRevenueCY>410522954</ProgramServiceRevenueCY>
      <InvestmentIncomePriorYear>2630653</InvestmentIncomePriorYear>
      <InvestmentIncomeCurrentYear>3974664</InvestmentIncomeCurrentYear>
      <OtherRevenuePriorYear>0</OtherRevenuePriorYear>
      <OtherRevenueCurrentYear>0</OtherRevenueCurrentYear>
      <TotalRevenuePriorYear>306046377</TotalRevenuePriorYear>
      <TotalRevenueCurrentYear>414497618</TotalRevenueCurrentYear>
      <GrantsAndSimilarAmntsPriorYear>0</GrantsAndSimilarAmntsPriorYear>
      <GrantsAndSimilarAmntsCY>0</GrantsAndSimilarAmntsCY>
      <BenefitsPaidToMembersPriorYear>170176614</BenefitsPaidToMembersPriorYear>
      <BenefitsPaidToMembersCY>298177808</BenefitsPaidToMembersCY>
      <SalariesEtcPriorYear>92387</SalariesEtcPriorYear>
      <SalariesEtcCurrentYear>107715</SalariesEtcCurrentYear>
      <TotalProfFundrsngExpPriorYear>0</TotalProfFundrsngExpPriorYear>
      <TotalProfFundrsngExpCY>0</TotalProfFundrsngExpCY>
      <TotalFundrsngExpCurrentYear>0</TotalFundrsngExpCurrentYear>
      <OtherExpensePriorYear>26542977</OtherExpensePriorYear>
      <OtherExpensesCurrentYear>46029656</OtherExpensesCurrentYear>
      <TotalExpensesPriorYear>196811978</TotalExpensesPriorYear>
      <TotalExpensesCurrentYear>344315179</TotalExpensesCurrentYear>
      <RevenuesLessExpensesPriorYear>109234399</RevenuesLessExpensesPriorYear>
      <RevenuesLessExpensesCY>70182439</RevenuesLessExpensesCY>
      <TotalAssetsBOY>350957779</TotalAssetsBOY>
      <TotalAssetsEOY>460437525</TotalAssetsEOY>
      <TotalLiabilitiesBOY>0</TotalLiabilitiesBOY>
      <TotalLiabilitiesEOY>0</TotalLiabilitiesEOY>
      <NetAssetsOrFundBalancesBOY>350957779</NetAssetsOrFundBalancesBOY>
      <NetAssetsOrFundBalancesEOY>460437525</NetAssetsOrFundBalancesEOY>
      <MissionDescription>PROVIDING HEALTH AND WELFARE BENEFITS.</MissionDescription>
      <SignificantNewProgramServices>false</SignificantNewProgramServices>
      <SignificantChange>false</SignificantChange>
      <Description>PROVIDING HEALTH AND WELFARE BENEFITS.</Description>
      <DescribedIn501C3>false</DescribedIn501C3>
      <ScheduleBRequired>false</ScheduleBRequired>
      <PoliticalActivities>false</PoliticalActivities>
      <DonorAdvisedFunds>false</DonorAdvisedFunds>
      <ConservationEasements>false</ConservationEasements>
      <CollectionsOfArt>false</CollectionsOfArt>
      <CreditCounseling>false</CreditCounseling>
      <TermOrPermanentEndowments>false</TermOrPermanentEndowments>
      <ReportLandBldgEquip>false</ReportLandBldgEquip>
      <ReportInvestOthSecurities>false</ReportInvestOthSecurities>
      <ReportProgRelInvest>false</ReportProgRelInvest>
      <ReportOtherAssets>false</ReportOtherAssets>
      <ReportOtherLiabilities>false</ReportOtherLiabilities>
      <ReportFin48Footnote>false</ReportFin48Footnote>
      <IndependentAuditFinancialStmt>false</IndependentAuditFinancialStmt>
      <ConsolidatedAuditFinancialStmt>false</ConsolidatedAuditFinancialStmt>
      <School>false</School>
      <ForeignOffice>false</ForeignOffice>
      <ForeignActivities>false</ForeignActivities>
      <MoreThan5000KToOrganizations>false</MoreThan5000KToOrganizations>
      <MoreThan5000KToIndividuals>false</MoreThan5000KToIndividuals>
      <ProfessionalFundraising>false</ProfessionalFundraising>
      <FundraisingActivities>false</FundraisingActivities>
      <Gaming>false</Gaming>
      <Hospital>false</Hospital>
      <GrantsToOrganizations>false</GrantsToOrganizations>
      <GrantsToIndividuals>false</GrantsToIndividuals>
      <ScheduleJRequired>false</ScheduleJRequired>
      <TaxExemptBonds>false</TaxExemptBonds>
      <LoanToOfficerOrDQP>false</LoanToOfficerOrDQP>
      <GrantToRelatedPerson>false</GrantToRelatedPerson>
      <BsnssRltnshpWithOrganization>false</BsnssRltnshpWithOrganization>
      <BsnssRltnshpThruFamilyMember>false</BsnssRltnshpThruFamilyMember>
      <OfficerEntityWithBsnssRltnshp>false</OfficerEntityWithBsnssRltnshp>
      <DeductibleNonCashContributions>false</DeductibleNonCashContributions>
      <DeductibleContributionsOfArt>false</DeductibleContributionsOfArt>
      <Terminated>false</Terminated>
      <PartialLiquidation>false</PartialLiquidation>
      <DisregardedEntity referenceDocumentId="IRS990ScheduleR">false</DisregardedEntity>
      <RelatedEntity referenceDocumentId="IRS990ScheduleR">true</RelatedEntity>
      <RelatedOrgControlledEntity>false</RelatedOrgControlledEntity>
      <ActivitiesConductedPartnership referenceDocumentId="IRS990ScheduleR">false</ActivitiesConductedPartnership>
      <ScheduleORequired>true</ScheduleORequired>
      <NumberFormsTransmittedWith1096>0</NumberFormsTransmittedWith1096>
      <NumberW2GIncluded>0</NumberW2GIncluded>
      <NumberOfEmployees>0</NumberOfEmployees>
      <UnrelatedBusinessIncome>true</UnrelatedBusinessIncome>
      <Form990-TFiled>true</Form990-TFiled>
      <ForeignFinancialAccount>false</ForeignFinancialAccount>
      <ProhibitedTaxShelterTrans>false</ProhibitedTaxShelterTrans>
      <TaxablePartyNotification>false</TaxablePartyNotification>
      <NonDeductibleContributions>false</NonDeductibleContributions>
      <IndoorTanningServices>false</IndoorTanningServices>
      <InfoInScheduleOPartVI>X</InfoInScheduleOPartVI>
      <NbrVotingGoverningBodyMembers>1</NbrVotingGoverningBodyMembers>
      <NumberIndependentVotingMembers>0</NumberIndependentVotingMembers>
      <FamilyOrBusinessRelationship>false</FamilyOrBusinessRelationship>
      <DelegationOfManagementDuties>false</DelegationOfManagementDuties>
      <ChangesToOrganizingDocs>false</ChangesToOrganizingDocs>
      <MaterialDiversionOrMisuse>false</MaterialDiversionOrMisuse>
      <MembersOrStockholders>false</MembersOrStockholders>
      <ElectionOfBoardMembers>false</ElectionOfBoardMembers>
      <DecisionsSubjectToApproval>false</DecisionsSubjectToApproval>
      <MinutesOfGoverningBody>true</MinutesOfGoverningBody>
      <MinutesOfCommittees>true</MinutesOfCommittees>
      <OfficerMailingAddress>false</OfficerMailingAddress>
      <LocalChapters>false</LocalChapters>
      <Form990ProvidedToGoverningBody>true</Form990ProvidedToGoverningBody>
      <ConflictOfInterestPolicy>true</ConflictOfInterestPolicy>
      <AnnualDisclosureCoveredPersons>true</AnnualDisclosureCoveredPersons>
      <RegularMonitoringEnforcement>true</RegularMonitoringEnforcement>
      <WhistleblowerPolicy>false</WhistleblowerPolicy>
      <DocumentRetentionPolicy>true</DocumentRetentionPolicy>
      <CompensationProcessCEO>false</CompensationProcessCEO>
      <CompensationProcessOther>false</CompensationProcessOther>
      <InvestmentInJointVenture>false</InvestmentInJointVenture>
      <UponRequest>X</UponRequest>
      <TheBooksAreInCareOf>
        <NamePerson>MARGARET BAILEY</NamePerson>
        <TelephoneNumber>7137899600</TelephoneNumber>
        <AddressUS>
          <AddressLine1>3600 BRIARPARK DRIVE 3RD FL MD-4</AddressLine1>
          <City>HOUSTON</City>
          <State>TX</State>
          <ZIPCode>77042</ZIPCode>
        </AddressUS>
      </TheBooksAreInCareOf>
      <Form990PartVIISectionA>
        <NamePerson>The Northern Trust Company</NamePerson>
        <Title>Trustee</Title>
        <AverageHoursPerWeek>0.0</AverageHoursPerWeek>
        <InstitutionalTrustee>X</InstitutionalTrustee>
        <ReportableCompFromOrganization>107715</ReportableCompFromOrganization>
        <ReportableCompFromRelatedOrgs>0</ReportableCompFromRelatedOrgs>
        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <TotalReportableCompFromOrg>107715</TotalReportableCompFromOrg>
      <TotalReportableCompFrmRltdOrgs>0</TotalReportableCompFrmRltdOrgs>
      <TotalOtherCompensation>0</TotalOtherCompensation>
      <NumberIndividualsGT100K>1</NumberIndividualsGT100K>
      <FormersListed>false</FormersListed>
      <TotalCompGT150K>false</TotalCompGT150K>
      <CompensationFromOtherSources>false</CompensationFromOtherSources>
      <ContractorCompensation>
        <NameOfContractor>
          <NamePerson>TOWERS WATSON</NamePerson>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>71 S WACKER DR STE 2600</AddressLine1>
            <City>CHICAGO</City>
            <State>IL</State>
            <ZIPCode>60606</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>ACCT/ACTUARIAL SVCS</DescriptionOfServices>
        <Compensation>1406880</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NamePerson>NISA INVESTMENT ADVISORS LLC</NamePerson>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>150 N MERAMEC AVENUE 6TH FLOOR</AddressLine1>
            <City>ST LOUIS</City>
            <State>MO</State>
            <ZIPCode>63105</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>INVESTMENT MGT SVCS</DescriptionOfServices>
        <Compensation>468263</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NamePerson>SEGAL</NamePerson>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>333 WEST 34TH STREET</AddressLine1>
            <City>NEW YORK</City>
            <State>NY</State>
            <ZIPCode>100012402</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>ACCT/ACTUARIAL SVCS</DescriptionOfServices>
        <Compensation>162250</Compensation>
      </ContractorCompensation>
      <NumberOfContractorsGT100K>3</NumberOfContractorsGT100K>
      <TotalContributions>0</TotalContributions>
      <ProgramServiceRevenue>
        <Description>PARTICIPANT CONTRIBUTIONS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>28677239</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>28677239</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>SPONSOR CONTRIBUTIONS</Description>
        <BusinessCode>900099</BusinessCode>
        <TotalRevenueColumn>381845715</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>381845715</RelatedOrExemptFunctionIncome>
      </ProgramServiceRevenue>
      <TotalProgramServiceRevenue>410522954</TotalProgramServiceRevenue>
      <InvestmentIncome>
        <TotalRevenueColumn>8152368</TotalRevenueColumn>
        <UnrelatedBusinessRevenue>5219258</UnrelatedBusinessRevenue>
        <ExclusionAmount>2933110</ExclusionAmount>
      </InvestmentIncome>
      <IncomeFromInvestBondProceeds>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </IncomeFromInvestBondProceeds>
      <RoyaltiesRevenue>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </RoyaltiesRevenue>
      <RentalIncomeOrLoss>
        <Real>0</Real>
        <Personal>0</Personal>
      </RentalIncomeOrLoss>
      <NetRentalIncomeOrLoss>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </NetRentalIncomeOrLoss>
      <GrossAmountSalesAssets>
        <Securities>51704104</Securities>
        <Other>27777</Other>
      </GrossAmountSalesAssets>
      <LessCostOthBasisSalesExpenses>
        <Securities>55881808</Securities>
      </LessCostOthBasisSalesExpenses>
      <GainOrLoss>
        <Securities>-4177704</Securities>
        <Other>27777</Other>
      </GainOrLoss>
      <NetGainOrLossInvestments>
        <TotalRevenueColumn>-4177704</TotalRevenueColumn>
        <UnrelatedBusinessRevenue>-4485028</UnrelatedBusinessRevenue>
        <ExclusionAmount>307324</ExclusionAmount>
      </NetGainOrLossInvestments>
      <NetIncomeFromFundraisingEvents>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </NetIncomeFromFundraisingEvents>
      <NetIncomeFromGaming>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </NetIncomeFromGaming>
      <NetIncomeOrLoss>
        <TotalRevenueColumn>0</TotalRevenueColumn>
      </NetIncomeOrLoss>
      <TotalOtherRevenue>0</TotalOtherRevenue>
      <TotalRevenue>
        <TotalRevenueColumn>414497618</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>410522954</RelatedOrExemptFunctionIncome>
        <UnrelatedBusinessRevenue>734230</UnrelatedBusinessRevenue>
        <ExclusionAmount>3240434</ExclusionAmount>
      </TotalRevenue>
      <GrantsToDomesticOrgs>
        <Total>0</Total>
      </GrantsToDomesticOrgs>
      <GrantsToDomesticIndividuals>
        <Total>0</Total>
      </GrantsToDomesticIndividuals>
      <ForeignGrants>
        <Total>0</Total>
      </ForeignGrants>
      <BenefitsToMembers>
        <Total>298177808</Total>
      </BenefitsToMembers>
      <CompCurrentOfficersDirectors>
        <Total>107715</Total>
      </CompCurrentOfficersDirectors>
      <CompDisqualPersons>
        <Total>0</Total>
      </CompDisqualPersons>
      <OtherSalariesAndWages>
        <Total>0</Total>
      </OtherSalariesAndWages>
      <PensionPlanContributions>
        <Total>0</Total>
      </PensionPlanContributions>
      <OtherEmployeeBenefits>
        <Total>0</Total>
      </OtherEmployeeBenefits>
      <PayrollTaxes>
        <Total>0</Total>
      </PayrollTaxes>
      <FeesForServicesManagement>
        <Total>0</Total>
      </FeesForServicesManagement>
      <FeesForServicesLegal>
        <Total>0</Total>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
        <Total>76709</Total>
      </FeesForServicesAccounting>
      <FeesForServicesLobbying>
        <Total>0</Total>
      </FeesForServicesLobbying>
      <FeesForServicesProfFundraising>
        <Total>0</Total>
      </FeesForServicesProfFundraising>
      <FeesForServicesInvstMgmntFees>
        <Total>468263</Total>
      </FeesForServicesInvstMgmntFees>
      <FeesForServicesOther>
        <Total>0</Total>
      </FeesForServicesOther>
      <Advertising>
        <Total>0</Total>
      </Advertising>
      <OfficeExpenses>
        <Total>1226</Total>
      </OfficeExpenses>
      <InformationTechnology>
        <Total>29400</Total>
      </InformationTechnology>
      <Royalties>
        <Total>0</Total>
      </Royalties>
      <Occupancy>
        <Total>0</Total>
      </Occupancy>
      <Travel>
        <Total>0</Total>
      </Travel>
      <TravelEntrtnmntPublicOfficials>
        <Total>0</Total>
      </TravelEntrtnmntPublicOfficials>
      <ConferencesMeetings>
        <Total>0</Total>
      </ConferencesMeetings>
      <Interest>
        <Total>0</Total>
      </Interest>
      <PaymentsToAffiliates>
        <Total>0</Total>
      </PaymentsToAffiliates>
      <DepreciationDepletion>
        <Total>0</Total>
      </DepreciationDepletion>
      <Insurance>
        <Total>0</Total>
      </Insurance>
      <OtherExpenses>
        <Description>PREMIUM PAYMENTS</Description>
        <Total>30877283</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>ADMINISTRATIVE FEES</Description>
        <Total>12708941</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>ACTUARIAL AND CONSULTING</Description>
        <Total>1569130</Total>
      </OtherExpenses>
      <OtherExpenses>
        <Description>MISCELLANEOUS</Description>
        <Total>298704</Total>
      </OtherExpenses>
      <TotalFunctionalExpenses>
        <Total>344315179</Total>
      </TotalFunctionalExpenses>
      <CashNonInterestBearing>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </CashNonInterestBearing>
      <SavingsAndTempCashInvestments>
        <BOY>44172083</BOY>
        <EOY>62372502</EOY>
      </SavingsAndTempCashInvestments>
      <PledgesAndGrantsReceivable>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </PledgesAndGrantsReceivable>
      <AccountsReceivable>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </AccountsReceivable>
      <ReceivablesFromOfficersEtc>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </ReceivablesFromOfficersEtc>
      <ReceivablesFromDisqualPersons>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </ReceivablesFromDisqualPersons>
      <OtherNotesLoansReceivableNet>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </OtherNotesLoansReceivableNet>
      <InventoriesForSaleOrUse>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </InventoriesForSaleOrUse>
      <PrepaidExpensesDeferredCharges>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </PrepaidExpensesDeferredCharges>
      <LandBuildingsEquipmentBasisNet>
        <BOY>0</BOY>
      </LandBuildingsEquipmentBasisNet>
      <InvestmentsPubTradedSecurities>
        <BOY>306785696</BOY>
        <EOY>398065023</EOY>
      </InvestmentsPubTradedSecurities>
      <InvestmentsOtherSecurities>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </InvestmentsOtherSecurities>
      <InvestmentsProgramRelated>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </InvestmentsProgramRelated>
      <IntangibleAssets>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </IntangibleAssets>
      <OtherAssetsTotal>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </OtherAssetsTotal>
      <TotalAssets>
        <BOY>350957779</BOY>
        <EOY>460437525</EOY>
      </TotalAssets>
      <AccountsPayableAccruedExpenses>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </AccountsPayableAccruedExpenses>
      <GrantsPayable>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </GrantsPayable>
      <DeferredRevenue>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </DeferredRevenue>
      <TaxExemptBondLiabilities>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </TaxExemptBondLiabilities>
      <EscrowAccountLiability>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </EscrowAccountLiability>
      <LoansFromOfficersDirectors>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </LoansFromOfficersDirectors>
      <MortNotesPyblSecuredInvestProp>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </MortNotesPyblSecuredInvestProp>
      <UnsecuredNotesLoansPayable>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </UnsecuredNotesLoansPayable>
      <OtherLiabilities>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </OtherLiabilities>
      <TotalLiabilities>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </TotalLiabilities>
      <DoNotFollowSFAS117>X</DoNotFollowSFAS117>
      <CapStckTrstPrinCurrentFunds>
        <BOY>350957779</BOY>
        <EOY>460437525</EOY>
      </CapStckTrstPrinCurrentFunds>
      <PaidInCapSrplsLandBldgEqpFund>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </PaidInCapSrplsLandBldgEqpFund>
      <RetainedEarningsEndowmentEtc>
        <BOY>0</BOY>
        <EOY>0</EOY>
      </RetainedEarningsEndowmentEtc>
      <TotalNetAssetsFundBalances>
        <BOY>350957779</BOY>
        <EOY>460437525</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>350957779</BOY>
        <EOY>460437525</EOY>
      </TotalLiabNetAssetsFundBalances>
      <ReconcilationRevenueExpenses>70182439</ReconcilationRevenueExpenses>
      <ReconciliationUnrealizedInvest>39297307</ReconciliationUnrealizedInvest>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>false</AccountantCompileOrReview>
      <FSAudited>false</FSAudited>
      <FederalGrantAuditRequired>false</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <GeneralExplanation>
        <Identifier>DESCRIPTION OF PROCESS FOR REVIEW</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 11</ReturnReference>
        <Explanation>PROVIDED TO KEY MEMBERS OF THE SCHLUMBERGER PLAN FOR REVIEW PRIOR TO SIGNATURE AND FILING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>PROCESS FOR REGULARLY &amp; CONSISTENTLY MONITORING &amp; ENFORCING COI POLICY</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 12C</ReturnReference>
        <Explanation>THE COMPANY HAS A POLICY WHICH ENCOURAGES BOTH EMPLOYEES AND THE CONTRACTED PROVIDERS WHO INVEST ASSETS OF THE TRUST TO DISCLOSE ANY AND ALL POSSIBLE CONFLICTS OF INTEREST THAT WOULD BE UNFAVORABLE TO OR DEPRIVE ELIGIBLE PARTICIPANTS OF ANY ASSETS OF THE TRUST.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>DESCRIPTION FOR MAKING DOCUMENTS PUBLIC</Identifier>
        <ReturnReference>FORM 990, PAGE 6, PART VI, LINE 19</ReturnReference>
        <Explanation>ONLY UPON REQUEST</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>REVENUE EXCLUDED FROM TAX</Identifier>
        <ReturnReference>FORM 990, PART VIII</ReturnReference>
        <Explanation>THE AMOUNTS IN PART VIII, COLUMN D REPRESENTS NON INCLUDABLE UBTI RESULTING FROM BOOK/TAX DIFFERENCES AND TAX EXEMPT INTREST INCOME.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>Schlumberger Technology Corporation</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>300 SCHLUMBERGER DRIVE</AddressLine1>
          <City>SUGAR LAND</City>
          <State>TX</State>
          <ZIPCode>77478</ZIPCode>
        </AddressUS>
        <EIN>221692661</EIN>
        <PrimaryActivity>ENG/TECH SVCS</PrimaryActivity>
        <LegalDomicileState>TX</LegalDomicileState>
        <TypeOfEntity>C CORP</TypeOfEntity>
      </Form990ScheduleRPartIV>
      <ReceiptOfIntAnnRentsRoyalties>false</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>false</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>false</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>false</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>false</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>false</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>false</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>false</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>false</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>false</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>false</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>false</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>false</SharingOfFacilities>
      <SharingOfPaidEmployees>false</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>false</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>false</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>false</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>true</OtherTransferFromOtherOrg>
    </IRS990ScheduleR>
  </ReturnData>
</Return>