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          <PersonNm>LARRY FAULKNER</PersonNm>
          <USAddress>
            <AddressLine1Txt>5310 WESTERN HILLS DR</AddressLine1Txt>
            <CityNm>AUSTIN</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>78731</ZIPCd>
          </USAddress>
          <TitleTxt>DIRECTOR</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>3.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>CAREN PROTHRO</PersonNm>
          <USAddress>
            <AddressLine1Txt>3929 POTOMAC</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75205</ZIPCd>
          </USAddress>
          <TitleTxt>VICE-CHAIRMAN</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>3.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>TIFFANY ARMSTRONG</PersonNm>
          <USAddress>
            <AddressLine1Txt>100 CRESCENT COURT SUITE 880</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>752011884</ZIPCd>
          </USAddress>
          <TitleTxt>VP &amp; SECRETARY &amp; TREASURER</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>40.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>259580</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>SERENA RITCH</PersonNm>
          <USAddress>
            <AddressLine1Txt>100 CRESCENT COURT SUITE 880</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>752011884</ZIPCd>
          </USAddress>
          <TitleTxt>VP &amp; DIR. OF ARTS PROGRAM</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>40.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>211688</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>JERE THOMPSON JR</PersonNm>
          <USAddress>
            <AddressLine1Txt>1801 N LAMAR STREET SUITE 600</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75202</ZIPCd>
          </USAddress>
          <TitleTxt>DIRECTOR</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>3.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <OtherEmployeePaidOver50kCnt>0</OtherEmployeePaidOver50kCnt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
        <ContractorPaidOver50kCnt>0</ContractorPaidOver50kCnt>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SumOfProgramRelatedInvstGrp>
        <TotalAmt>0</TotalAmt>
      </SumOfProgramRelatedInvstGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>70168536</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>8208432</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>5545092</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>83922060</TotalFMVOfUnusedAssetsAmt>
        <ReductionClaimedAmt>0</ReductionClaimedAmt>
        <AcquisitionIndebtednessAmt>0</AcquisitionIndebtednessAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>83922060</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>1258831</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>82663229</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>4133161</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>4133161</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>141487</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>141487</TotalTaxAmt>
        <DistributableBeforeAdjAmt>3991674</DistributableBeforeAdjAmt>
        <RecoveriesQualfiedDistriAmt>0</RecoveriesQualfiedDistriAmt>
        <DistributableBeforeDedAmt>3991674</DistributableBeforeDedAmt>
        <DeductionFromDistributableAmt>0</DeductionFromDistributableAmt>
        <DistributableAsAdjustedAmt>3991674</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <QualifyingDistriPartXIIGrp>
        <ExpensesAndContributionsAmt>3687843</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>0</ProgramRelatedInvstTotalAmt>
        <QualifyingDistributionsAmt>3687843</QualifyingDistributionsAmt>
        <PctSect4940eOrgNetInvstIncmAmt>0</PctSect4940eOrgNetInvstIncmAmt>
        <AdjustedQualifyingDistriAmt>3687843</AdjustedQualifyingDistriAmt>
      </QualifyingDistriPartXIIGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>3991674</DistributableAsAdjustedAmt>
        <UndistributedIncomePYAmt>0</UndistributedIncomePYAmt>
        <TotalForPriorYearsAmt>0</TotalForPriorYearsAmt>
        <ExcessDistributionCyovYr5Amt>34134104</ExcessDistributionCyovYr5Amt>
        <ExcessDistributionCyovYr4Amt>35777364</ExcessDistributionCyovYr4Amt>
        <ExcessDistributionCyovYr3Amt>458019</ExcessDistributionCyovYr3Amt>
        <ExcessDistributionCyovYr2Amt>101822</ExcessDistributionCyovYr2Amt>
        <TotalExcessDistributionCyovAmt>70471309</TotalExcessDistributionCyovAmt>
        <QualifyingDistributionsAmt>3687843</QualifyingDistributionsAmt>
        <AppliedToYear1Amt>0</AppliedToYear1Amt>
        <AppliedToPriorYearsAmt>0</AppliedToPriorYearsAmt>
        <TreatedAsDistriFromCorpusAmt>0</TreatedAsDistriFromCorpusAmt>
        <AppliedToCurrentYearAmt>3687843</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>0</RemainingDistriFromCorpusAmt>
        <ExcessDistriCyovAppCYCorpusAmt>303831</ExcessDistriCyovAppCYCorpusAmt>
        <ExcessDistributionCyovAppCYAmt>303831</ExcessDistributionCyovAppCYAmt>
        <TotalCorpusAmt>70167478</TotalCorpusAmt>
        <PriorYearUndistributedIncmAmt>0</PriorYearUndistributedIncmAmt>
        <PriorYearDeficiencyOrTaxAmt>0</PriorYearDeficiencyOrTaxAmt>
        <Taxable1Amt>0</Taxable1Amt>
        <Taxable2Amt>0</Taxable2Amt>
        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <CorpusDistri170b1EOr4942g3Amt>0</CorpusDistri170b1EOr4942g3Amt>
        <ExcessDistriCyovFromYr5Amt>33830273</ExcessDistriCyovFromYr5Amt>
        <ExcessDistriCyovToNextYrAmt>36337205</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear4Amt>35777364</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>458019</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>101822</ExcessFromYear2Amt>
      </UndistributedIncomeGrp>
      <SupplementaryInformationGrp>
        <ContributingManagerNm>PETER O'DONNELL JR</ContributingManagerNm>
        <ApplicationSubmissionInfoGrp>
          <RecipientPersonNm>TIFFANY ARMSTRONG</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>100 CRESCENT COURT STE 880</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientPhoneNum>2148715800</RecipientPhoneNum>
          <FormAndInfoAndMaterialsTxt>APPLICATIONS SHOULD INCLUDE A BRIEF LETTER OUTLINING THE PROJECT, TIMETABLE, BUDGET, FUNDS ALREADY PLEDGED TO THE PROJECT, AND THE SPECIFIC CONTRIBUTION REQUESTED. PROVIDE LIST OF ORGANIZATION'S GOVERNING BOARD AND COPY OF IRS DETERMINATION LETTER OF TAX-EXEMPT STATUS.</FormAndInfoAndMaterialsTxt>
          <SubmissionDeadlinesTxt>NONE</SubmissionDeadlinesTxt>
          <RestrictionsOnAwardsTxt>IN AWARDING CHARITABLE AND EDUCATIONAL GRANTS, PREFERENCE IS GIVEN TO LOCAL INSTITUTIONS. NO GRANTS ARE MADE TO INDIVIDUALS AND NO SCHOLARSHIPS, LOANS OR PRIZES ARE AWARDED.</RestrictionsOnAwardsTxt>
        </ApplicationSubmissionInfoGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>DALLAS SYMPHONY ASSOCIATION</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2301 N FLORA ST</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>583334</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>5323 HARRY HINES BLVD</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75390</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>185000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE DALLAS OPERA</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2403 FLORA ST</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>500000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>NATIONAL MATH AND SCIENCE INITIATIVE INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>8350 N CENTRAL EXPY SUITE 2200</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75206</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>79138</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE UNIVERSITY OF TEXAS AT DALLAS</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>800 W CAMPBELL RD</AddressLine1Txt>
            <CityNm>RICHARDSON</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75080</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>50000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>TEXAS TREE FOUNDATION</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2906 SWISS AVE</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75204</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>300000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE DALLAS FOUNDATION</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>3963 MAPLE AVE 390</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75219</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE DALLAS MUSEUM OF ART</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1717 N HARWOOD ST</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>895000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>WORLD AFFAIRS COUNCIL OF DALLASFORT WORTH</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>325 NORTH ST PAUL ST 4200</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>25000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>2717472</TotalGrantOrContriPdDurYrAmt>
        <GrantOrContriApprvForFutGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>5323 HARRY HINES BLVD</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75390</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>10120000</Amt>
        </GrantOrContriApprvForFutGrp>
        <GrantOrContriApprvForFutGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE DALLAS MUSEUM OF ART</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1717 N HARWOOD ST</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75201</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>525000</Amt>
        </GrantOrContriApprvForFutGrp>
        <TotalGrantOrContriApprvFutAmt>10645000</TotalGrantOrContriApprvFutAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>31649</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DivAndIntFromSecPartVIIGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>924241</ExclusionAmt>
        </DivAndIntFromSecPartVIIGrp>
        <OtherInvestmentIncmPartVIIGrp>
          <BusinessCd>211110</BusinessCd>
          <UnrelatedBusinessTaxblIncmAmt>158687</UnrelatedBusinessTaxblIncmAmt>
          <ExclusionCd>15</ExclusionCd>
          <ExclusionAmt>2065870</ExclusionAmt>
        </OtherInvestmentIncmPartVIIGrp>
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>7586053</ExclusionAmt>
          <RelatedOrExemptFunctionIncmAmt>-32102</RelatedOrExemptFunctionIncmAmt>
        </GainSalesAstOthThanInvntryGrp>
        <SubtotalsIncmProducingActyGrp>
          <UnrelatedBusinessTaxblIncmAmt>158687</UnrelatedBusinessTaxblIncmAmt>
          <ExclusionAmt>10607813</ExclusionAmt>
          <RelatedOrExemptFunctionIncmAmt>-32102</RelatedOrExemptFunctionIncmAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>10734398</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <RlnOfActyToAccomOfExmptPrpsGrp>
        <RlnOfActyToAccomOfExmptPrpsGrp>
          <LineNumberTxt>1</LineNumberTxt>
          <RelationshipStatementTxt>N/A</RelationshipStatementTxt>
        </RlnOfActyToAccomOfExmptPrpsGrp>
      </RlnOfActyToAccomOfExmptPrpsGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>0</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>0</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>0</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>0</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>0</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>0</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>0</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>0</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>0</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>0</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="RetDoc2002200001">
      <AccountingFeesDetail>
        <CategoryTxt>ACCOUNTING FEES</CategoryTxt>
        <Amt>64188</Amt>
        <NetInvestmentIncomeAmt>57769</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <GainLossSaleOtherAssetsSch documentId="RetDoc2213400001">
      <GainLossSaleOtherAssetGrp>
        <AssetDesc>ABANDONMENT OF LEASEHOLDS</AssetDesc>
        <HowAcquiredTxt>PURCHASED</HowAcquiredTxt>
        <SoldDt>2020-08</SoldDt>
        <BasisAmt>110987</BasisAmt>
        <BasisMethodTxt>COST</BasisMethodTxt>
        <SalesExpenseAmt>0</SalesExpenseAmt>
        <TotalNetAmt>-32102</TotalNetAmt>
        <AccumulatedDepreciationAmt>78885</AccumulatedDepreciationAmt>
      </GainLossSaleOtherAssetGrp>
    </GainLossSaleOtherAssetsSch>
    <InvestmentsCorpBondsSchedule documentId="RetDoc2044400001">
      <InvestmentsCorporateBondsGrp>
        <BondNm>VANGUARD SHORT TERM BOND ETF</BondNm>
        <EOYBookValueAmt>22544655</EOYBookValueAmt>
        <EOYFMVAmt>22544655</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
    </InvestmentsCorpBondsSchedule>
    <InvestmentsCorpStockSchedule documentId="RetDoc2018900001">
      <InvestmentsCorporateStockGrp>
        <StockNm>BERKSHIRE HATHAWAY</StockNm>
        <EOYBookValueAmt>8556003</EOYBookValueAmt>
        <EOYFMVAmt>8556003</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>FACEBOOK INC.</StockNm>
        <EOYBookValueAmt>13167131</EOYBookValueAmt>
        <EOYFMVAmt>13167131</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>FIRST FINANCIAL BANKSHARES, INC.</StockNm>
        <EOYBookValueAmt>17088708</EOYBookValueAmt>
        <EOYFMVAmt>17088708</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>SOUTHWEST AIRLINES</StockNm>
        <EOYBookValueAmt>3433665</EOYBookValueAmt>
        <EOYFMVAmt>3433665</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>VANGUARD S&amp;P 500</StockNm>
        <EOYBookValueAmt>13386726</EOYBookValueAmt>
        <EOYFMVAmt>13386726</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <InvestmentsLandSchedule2 documentId="RetDoc2059100001">
      <InvestmentLandGrp>
        <CategoryOrItemTxt>REAL ESTATE</CategoryOrItemTxt>
        <CostOrOtherBasisAmt>4482541</CostOrOtherBasisAmt>
        <AccumulatedDepreciationAmt>4440017</AccumulatedDepreciationAmt>
        <BookValueAmt>42524</BookValueAmt>
        <EOYFMVAmt>5545092</EOYFMVAmt>
      </InvestmentLandGrp>
    </InvestmentsLandSchedule2>
    <LandEtcSchedule2 documentId="RetDoc2059000001">
      <LandEtcGrp>
        <CategoryOrItemTxt>FIXED ASSETS</CategoryOrItemTxt>
        <CostOrOtherBasisAmt>214601</CostOrOtherBasisAmt>
        <AccumulatedDepreciationAmt>210709</AccumulatedDepreciationAmt>
        <BookValueAmt>3892</BookValueAmt>
        <EOYFMVAmt>3892</EOYFMVAmt>
      </LandEtcGrp>
    </LandEtcSchedule2>
    <LegalFeesSchedule documentId="RetDoc2002100001">
      <LegalFeesGrp>
        <CategoryTxt>LEGAL FEES</CategoryTxt>
        <LegalFeesAmt>121</LegalFeesAmt>
        <NetInvestmentIncomeAmt>24</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </LegalFeesGrp>
    </LegalFeesSchedule>
    <OtherAssetsSchedule documentId="RetDoc2046600001">
      <OtherAssetsScheduleGrp>
        <Desc>DEPOSITS</Desc>
        <BOYBookValueAmt>3555</BOYBookValueAmt>
        <EOYBookValueAmt>3555</EOYBookValueAmt>
        <EOYFMVAmt>3555</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
    </OtherAssetsSchedule>
    <OtherDecreasesSchedule documentId="RetDoc2049800001">
      <OtherDecreasesDetail>
        <Desc>NET UNREALIZED LOSS ON INVESTMENTS</Desc>
        <Amt>2045400</Amt>
      </OtherDecreasesDetail>
    </OtherDecreasesSchedule>
    <OtherExpensesSchedule documentId="RetDoc2003200001">
      <OtherExpensesScheduleGrp>
        <Desc>POSTAGE, SUPPLIES, OFFICE EXP</Desc>
        <RevenueAndExpensesPerBooksAmt>21000</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>4200</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>16800</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>LEASE OPERATING EXPENSE</Desc>
        <RevenueAndExpensesPerBooksAmt>75671</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>INSURANCE</Desc>
        <RevenueAndExpensesPerBooksAmt>27955</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>5591</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>22364</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="RetDoc2001500001">
      <OtherIncomeDetail>
        <Desc>OIL &amp; GAS ROYALTY INTEREST</Desc>
        <RevenueAndExpensesPerBooksAmt>2065870</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>2065870</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
      <OtherIncomeDetail>
        <Desc>OIL &amp; GAS WORKING INTEREST</Desc>
        <RevenueAndExpensesPerBooksAmt>110534</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>110534</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
      <OtherIncomeDetail>
        <Desc>OTHER INCOME</Desc>
        <RevenueAndExpensesPerBooksAmt>186</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>186</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
      <OtherIncomeDetail>
        <Desc>LEASE BONUS</Desc>
        <RevenueAndExpensesPerBooksAmt>47967</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>47967</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <OtherProfessionalFeesSchedule documentId="RetDoc2002300001">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>OTHER PROFESSIONAL FEES</CategoryTxt>
        <Amt>229</Amt>
        <NetInvestmentIncomeAmt>46</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>183</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="RetDoc2002500001">
      <TaxesDetail>
        <CategoryTxt>FEDERAL EXCISE AND OTHER</CategoryTxt>
        <Amt>165465</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
      <TaxesDetail>
        <CategoryTxt>OIL &amp; GAS AD VALOREM TAX</CategoryTxt>
        <Amt>188351</Amt>
        <NetInvestmentIncomeAmt>184584</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
      <TaxesDetail>
        <CategoryTxt>OIL &amp; GAS PRODUCTION TAX</CategoryTxt>
        <Amt>111985</Amt>
        <NetInvestmentIncomeAmt>101497</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
      <TaxesDetail>
        <CategoryTxt>PROPERTY TAX EXPENSE</CategoryTxt>
        <Amt>1182</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>
