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        <BeginningOfYearBalance>17346185</BeginningOfYearBalance>
        <InvestmentEarningsOrLosses>1560682</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>1948950</GrantsOrScholarships>
        <AdministrativeExpenses>12225</AdministrativeExpenses>
        <EndOfYearBalance>16945692</EndOfYearBalance>
      </CurrentYear>
      <CurrentYearMinus1Year>
        <BeginningOfYearBalance>16122778</BeginningOfYearBalance>
        <Contributions>1000000</Contributions>
        <InvestmentEarningsOrLosses>790895</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>553764</GrantsOrScholarships>
        <AdministrativeExpenses>13724</AdministrativeExpenses>
        <EndOfYearBalance>17346185</EndOfYearBalance>
      </CurrentYearMinus1Year>
      <CurrentYearMinus2Years>
        <BeginningOfYearBalance>15747265</BeginningOfYearBalance>
        <Contributions>1200000</Contributions>
        <InvestmentEarningsOrLosses>1054233</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>1867026</GrantsOrScholarships>
        <AdministrativeExpenses>11694</AdministrativeExpenses>
        <EndOfYearBalance>16122778</EndOfYearBalance>
      </CurrentYearMinus2Years>
      <CurrentYearMinus3Years>
        <BeginningOfYearBalance>14311204</BeginningOfYearBalance>
        <Contributions>800000</Contributions>
        <InvestmentEarningsOrLosses>2082022</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>1430926</GrantsOrScholarships>
        <AdministrativeExpenses>15035</AdministrativeExpenses>
        <EndOfYearBalance>15747265</EndOfYearBalance>
      </CurrentYearMinus3Years>
      <CurrentYearMinus4Years>
        <BeginningOfYearBalance>13252992</BeginningOfYearBalance>
        <Contributions>3950671</Contributions>
        <InvestmentEarningsOrLosses>-1657253</InvestmentEarningsOrLosses>
        <GrantsOrScholarships>1235206</GrantsOrScholarships>
        <EndOfYearBalance>14311204</EndOfYearBalance>
      </CurrentYearMinus4Years>
      <TermEndowmentEOYBalance>1.00000</TermEndowmentEOYBalance>
      <EndowmentsHeldByUnrelatedOrgs>false</EndowmentsHeldByUnrelatedOrgs>
      <EndowmentsHeldByRelatedOrgs>false</EndowmentsHeldByRelatedOrgs>
      <AreRelatedOrgsListedScheduleR>false</AreRelatedOrgsListedScheduleR>
      <TotRevenueEtcAuditedFinclStmt>1560682</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>662982</NetUnrealizedGainsInvestments>
      <RevenueNotRptdF990>662982</RevenueNotRptdF990>
      <RevenueSubtotal>897700</RevenueSubtotal>
      <TotalRevenuePerForm990>897700</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>1961175</TotExpensesEtcAuditedFinclStmt>
      <ExpensesSubtotal>1961175</ExpensesSubtotal>
      <TotalExpensesPerForm990>1961175</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIII>
        <Identifier>Part V, Line 4</Identifier>
        <ReturnReference>Part V, Line 4: Intended uses of the endowment fund.</ReturnReference>
        <Explanation>THE PURPOSE OF THE ENDOWMENT FUNDS IS TO PROVIDE SUPPORT &amp; FUNDING FOR THE MEWBOURNE COLLEGE OF EARTH &amp; ENERGY AND THE MEWBOURNE SCHOOL OF PETROLEUM &amp; GEOLOGICAL ENGINEERING AT THE UNIVERSITY OF OKLAHOMA.</Explanation>
      </Form990ScheduleDPartXIII>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="IRS990ScheduleI" softwareId="12000229" softwareVersion="2012v2.0">
      <RecordsMaintained>true</RecordsMaintained>
      <RecipientTable>
        <RecipientNameBusiness>
          <BusinessNameLine1>UNIVERSITY OF OKLAHOMA</BusinessNameLine1>
        </RecipientNameBusiness>
        <AddressUS>
          <AddressLine1>1000 ASP AVENUE</AddressLine1>
          <City>NORMAN</City>
          <State>OK</State>
          <ZIPCode>73072</ZIPCode>
        </AddressUS>
        <AmountOfCashGrant>1948950</AmountOfCashGrant>
        <AmountOfNonCashAssistance>0</AmountOfNonCashAssistance>
        <MethodOfValuation>FMV</MethodOfValuation>
        <PurposeOfGrant>SEE FEDERAL SUPPLEMENTAL INFORMATION</PurposeOfGrant>
      </RecipientTable>
      <TotalNbrOf501C3AndGovtGrants>1</TotalNbrOf501C3AndGovtGrants>
      <TotalNbrOfOtherOrganizations>0</TotalNbrOfOtherOrganizations>
      <Form990ScheduleIPartIV>
        <Identifier>Grantmaker's Description of How Grants are Used</Identifier>
        <Explanation>A COMMITTE OF PROFESSORS AND ADVISORY BOARD MEMBERS INTERVIEW STUDENTS, REVIEW THEIR GRADES, ACTIVITIES AND LEADERSHIP, THEN RECOMMEND GRANTS, WHICH ARE THEN APPROVED BY DEAN AND DIRECTORS, AND MONITORED BY MFSO BOARD.</Explanation>
      </Form990ScheduleIPartIV>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="12000229" softwareVersion="2012v2.0">
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 19</Identifier>
        <ReturnReference>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</ReturnReference>
        <Explanation>GOVERNING DOCUMENTS AND AUDIT REPORTS WILL BE AVAILABLE UPON REQUEST.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 11b</Identifier>
        <ReturnReference>Form 990, Part VI, Line 11b: Form 990 Review Process</ReturnReference>
        <Explanation>FORM 990 WILL BE REVIEWED BY CHAIRMAN AND BOARD OF DIRECTORS AT MEETING PRIOR TO FILING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part III, Line 4d</Identifier>
        <ReturnReference>Form 990, Part III, Line 4d: Other Program Services Description</ReturnReference>
        <Explanation>OTHER PROGRAM SERVICES 4: MEWBOURNE CHAIR - II OTHER PROGRAM SERVICES 5: OTHER PROGRAM SERVICES 6: OTHER PROGRAM SERVICES 7: OTHER PROGRAM SERVICES 8: MEWBOURNE CHAIR - III OTHER PROGRAM SERVICES 9: MEWBOURNE CHAIR - IV OTHER PROGRAM SERVICES 10: Mewbourne P&amp;GE - Scholarship Matching OTHER PROGRAM SERVICES 11: Conoco Phillips G&amp;G - Scholarship Matching</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Explanation>Client Note 1 - PROMOTE EDUCATION IN ENERGY, PETROLEUM ENGINEERING, AND GEOLOGICAL STUDIES.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>