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        <ExclusionAmt>2087793</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>OTHER INVESTMENT INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>-642418</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>-17464</UnrelatedBusinessRevenueAmt>
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      <OtherRevenueTotalAmt>-642418</OtherRevenueTotalAmt>
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        <UnrelatedBusinessRevenueAmt>-17464</UnrelatedBusinessRevenueAmt>
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      <GrantsToDomesticOrgsGrp>
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        <ProgramServicesAmt>777270</ProgramServicesAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>256500</ProgramServicesAmt>
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        <ProgramServicesAmt>132125</ProgramServicesAmt>
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        <ProgramServicesAmt>104178</ProgramServicesAmt>
        <ManagementAndGeneralAmt>171126</ManagementAndGeneralAmt>
        <FundraisingAmt>4631</FundraisingAmt>
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        <ManagementAndGeneralAmt>58505</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>88277</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>1672</ManagementAndGeneralAmt>
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      <AdvertisingGrp>
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        <ProgramServicesAmt>10219</ProgramServicesAmt>
        <FundraisingAmt>78428</FundraisingAmt>
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        <ManagementAndGeneralAmt>20975</ManagementAndGeneralAmt>
        <FundraisingAmt>2905</FundraisingAmt>
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        <TotalAmt>708</TotalAmt>
        <ManagementAndGeneralAmt>708</ManagementAndGeneralAmt>
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        <TotalAmt>3800</TotalAmt>
        <ManagementAndGeneralAmt>3800</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>118970</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>9626</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>75648</ProgramServicesAmt>
        <ManagementAndGeneralAmt>116995</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>PRINTING</Desc>
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        <ProgramServicesAmt>10110</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>BANK FEES</Desc>
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        <ProgramServicesAmt>2179</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11684</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>POSTAGE AND SHIPPING</Desc>
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        <ProgramServicesAmt>127</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4208</ManagementAndGeneralAmt>
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      <AllOtherExpensesGrp>
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      <TotLiabNetAssetsFundBalanceGrp>
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      <FSAuditedInd>1</FSAuditedInd>
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        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
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        <CurrentTaxYearMinus3YearsAmt>891291</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>766143</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1469631</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>551767</CurrentTaxYearAmt>
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      <TotalCalendarYear170Grp>
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        <CurrentTaxYearMinus3YearsAmt>891291</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>766143</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1469631</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>551767</CurrentTaxYearAmt>
        <TotalAmt>4782919</TotalAmt>
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      <SubstantialContributorsTotAmt>377965</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>4404954</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1616024</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1395795</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1288755</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1572885</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2560376</CurrentTaxYearAmt>
        <TotalAmt>8433835</TotalAmt>
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      <UnrelatedBusinessNetIncm170Grp>
        <CurrentTaxYearMinus4YearsAmt>4073</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>15524</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>19597</TotalAmt>
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        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
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          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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        <ContributionsAmt>232582</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>51113</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>118604</OtherExpendituresAmt>
        <EndYearBalanceAmt>11390324</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>44286</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>104024</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>6265842</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>11225233</EndYearBalanceAmt>
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      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>16792091</BeginningYearBalanceAmt>
        <ContributionsAmt>475836</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>651498</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>752344</OtherExpendituresAmt>
        <EndYearBalanceAmt>17167081</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>60006</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>745746</OtherExpendituresAmt>
        <EndYearBalanceAmt>16792091</EndYearBalanceAmt>
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        <EndYearBalanceAmt>17073906</EndYearBalanceAmt>
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        <BookValueAmt>489346</BookValueAmt>
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        <DepreciationAmt>5512593</DepreciationAmt>
        <BookValueAmt>2039101</BookValueAmt>
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      <OtherLandBuildingsGrp>
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      </OtherLandBuildingsGrp>
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        <Desc>PARTNERSHIPS &amp; ALTERNATIVE INVESTMENTS</Desc>
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      <TotalBookValueSecuritiesAmt>8473496</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
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      <TotalLiabilityAmt>759890</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>2525375</TotalRevEtcAuditedFinclStmtAmt>
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      <RevenueNotReportedAmt>-1403037</RevenueNotReportedAmt>
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      <RevenueNotReportedFinclStmtAmt>88277</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>4016689</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>2021078</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>2021078</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>88277</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>88277</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>2109355</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION'S ENDOWMENT CONSISTS OF APPROXIMATELY 19 INDIVIDUAL FUNDS ESTABLISHED FOR A VARIETY OF PURPOSES. NET ASSETS ASSOCIATED WITH ENDOWMENT FUNDS ARE CLASSIFIED AND REPORTED BASED ON THE EXISTENCE OR ABSENCE OF DONOR-IMPOSED RESTRICTIONS. THE BOARD OF TRUSTEES OF THE FOUNDATION HAS INTERPRETED THE UNIFORM PRUDENT MANAGEMENT OF INSTITUTIONAL FUNDS ACT (UPMIFA) FOR OKLAHOMA AS REQUIRING THE PRESERVATION OF THE FAIR VALUE OF THE ORIGINAL GIFT AS OF THE GIFT DATE OF THE DONOR-RESTRICTED ENDOWMENT FUNDS ABSENT EXPLICIT DONOR STIPULATIONS TO THE CONTRARY. AS A RESULT OF THIS INTERPRETATION, THE FOUNDATION CLASSIFIES AS PERMANENTLY RESTRICTED NET ASSETS (A) THE ORIGINAL VALUE OF GIFTS DONATED TO THE PERMANENT ENDOWMENT, AND (B) THE ORIGINAL VALUE OF SUBSEQUENT GIFTS TO THE PERMANENT ENDOWMENT. EARNINGS ON THE PERMANENT ENDOWMENT ARE CLASSIFIED AS TEMPORARILY RESTRICTED UNTIL THOSE AMOUNTS ARE APPROPRIATED FOR EXPENDITURE BY THE FOUNDATION IN A MANNER CONSISTENT WITH THE STANDARD OF PRUDENCE PRESCRIBED BY UPMIFA.</ExplanationTxt>
      </SupplementalInformationDetail>
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        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES, CONFERENCES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>CONFERENCE, EDUC PROGRAMS</SpecificServicesProvidedTxt>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES, CONFERENCES</TypeOfActivitiesConductedTxt>
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        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES, CONFERENCES</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <RegionTxt>EAST ASIA AND THE PACIFIC - AUSTRALIA, BRUNEI, BURMA, CAMBODIA,</RegionTxt>
        <RecipientCnt>29</RecipientCnt>
        <CashGrantAmt>40250</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIU</RegionTxt>
        <RecipientCnt>31</RecipientCnt>
        <CashGrantAmt>26125</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA - ALGERIA, BAHRAIN, DJIBOUTI, EGYPT,</RegionTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>6000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>10</RecipientCnt>
        <CashGrantAmt>12000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA - ARGENTINA, BOLIVIA, BRAZIL, CHILE, COLUMBIA, ECUADOR,</RegionTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>3750</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
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      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH ASIA - AFGHANISTAN, BANGLADESH, BHUTAN, INDIA, MALDIVES, NEPAL,</RegionTxt>
        <RecipientCnt>63</RecipientCnt>
        <CashGrantAmt>35500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRANTS IN AID AND WEEKS EDUCATION GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>SUB-SAHARAN AFRICA - ANGOLA, BENIN, BOTSWANA, BURKINA FASO,</RegionTxt>
        <RecipientCnt>13</RecipientCnt>
        <CashGrantAmt>8500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFERS AND CHECKS</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANT PROPOSALS ARE REVIEWED BY THE BOARD OF TRUSTEES. PROPOSALS APPROVED ARE IN THE MINUTES OF THE BOARD OF TRUSTEES, PUBLISHED ON THE WEBSITE AND IN THE AAPG EXPLORER MAGAZINE.</ExplanationTxt>
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          <BusinessNameLine1Txt>TEXAS A&amp;M UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>COLLEGE STATION</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77840</ZIPCd>
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        <PurposeOfGrantTxt>MICHEL HALBOUTY FUND</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF COLORADO FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <CityNm>DENVER</CityNm>
          <StateAbbreviationCd>CO</StateAbbreviationCd>
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        <RecipientEIN>846049811</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
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        <PurposeOfGrantTxt>L. AUSTIN WEEKS FUND - IGP</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>HARDIN-SIMMONS UNIVERSITY</BusinessNameLine1Txt>
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          <CityNm>ABILENE</CityNm>
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        <NonCashAssistanceAmt>12700</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>SCHOLARSHIP</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>OKLAHOMA STATE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
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          <CityNm>STILLWATER</CityNm>
          <StateAbbreviationCd>OK</StateAbbreviationCd>
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        <RecipientEIN>731383996</RecipientEIN>
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        <PurposeOfGrantTxt>L. AUSTIN WEEKS FUND STUDENT SUPPORT</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>HOUSTON YMCA</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 3007</AddressLine1Txt>
          <CityNm>HOUSTON</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77253</ZIPCd>
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        <RecipientEIN>741109737</RecipientEIN>
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        <NonCashAssistanceAmt>65000</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>GEOLOGY CAMP CULLEN</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AMERICAN GEOSCIENCES INSTITUTE</BusinessNameLine1Txt>
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          <AddressLine1Txt>4220 KIN ST</AddressLine1Txt>
          <CityNm>ALEXANDRIA</CityNm>
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        <RecipientEIN>520786946</RecipientEIN>
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        <PurposeOfGrantTxt>EARCH SCIENCE WEEK</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AAPG</BusinessNameLine1Txt>
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      <RecipientTable>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AAPG ADVISORY COUNCIL HAS ESTABLISHED WRITTEN GUIDELINES AND PROCEDURES FOR SELECTING THE RECIPIENTS OF HONORS AND AWARDS. THE FOUNDATION BOARD OF TRUSTEES GRANT FUNDS FOR VARIOUS PROGRAMS INCLUDING UNIVERSITIES, STUDENT GROUPS, OTHER RELATED GEOLOGICAL SOCIETIES AND ACTIVITIES BASED ON PROPOSALS WHICH INCLUDE INFORMATION ON THE PROGRAM, THE PURPOSE AND USE OF FUNDS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>A CONFLICT OF INTEREST FORM IS COMPLETED BY EACH TRUSTEE AT THE BEGINNING OF THEIR TERM IN OFFICE. THE FORM IS DESIGNED TO IDENTIFY ANY SPECIFIC CONFLICT OF INTEREST WHICH THE TRUSTEE MAY HAVE IN SERVING ON THE BOARD OF TRUSTEES OF THE ORGANIZATION. ALL EMPLOYEES ARE BOUND BY CONFLICT OF INTEREST POLICIES FOUND IN THE POLICIES AND WORK RULES MANUAL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE DIRECTOR'S COMPENSATION IS REVIEWED AND ESTABLISHED BY THE EXECUTIVE COMMITTEE WITH CONSULTATION WITH THE TRUSTEES. BACKGROUND INFORMATION FROM NATIONAL AND REGIONAL SALARY SURVEYS ARE PROVIDED TO THE COMMITTEE TO ASSIST THEM IN THEIR REVIEW. THE PROCESS UTILIZED TO DETERMINE THE SALARIES OF KEY STAFF IS SIMILAR TO THE PROCESS USED FOR THE EXECUTIVE DIRECTOR AS BOTH NATIONAL AND LOCAL SALARY STUDIES ARE USED. LOCAL SALARY INFORMATION IS RECEIVED FROM A HUMAN RESOURCES CONSULTANT. THE EXECUTIVE COMMITTEE DOES NOT GENERALLY APPROVE THE SALARIES OF KEY STAFF, BUT THE COMMITTEE IS PROVIDED THE INFORMATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>THE GOVERNING DOCUMENTS, CONSTITUTION AND BY LAWS ARE PROVIDED ON THE ORGANIZATION'S WEBSITE. THE FINANCIAL STATEMENTS ARE PUBLISHED ANNUALLY IN AN ISSUE OF THE BULLETIN. THE CONFLICT OF INTEREST POLICY IS PUBLISHED IN THE TRUSTEES HANDBOOK, WHICH IS NOT A PUBLICATION AVAILABLE TO THE GENERAL PUBLIC.</ExplanationTxt>
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