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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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        <CurrentTaxYearAmt>11493</CurrentTaxYearAmt>
        <TotalAmt>13309</TotalAmt>
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        <CurrentTaxYearAmt>274001</CurrentTaxYearAmt>
        <TotalAmt>347669</TotalAmt>
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        <CurrentTaxYearAmt>187</CurrentTaxYearAmt>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
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        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 1, DESCRIPTION OF ORGANIZATION MISSION:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORRESPONDING SECTION OF ANY FUTURE FEDERAL TAX CODE. SPECIFICALLY, THE CORPORATION IS ORGANIZED TO COLLECT, ORGANIZE, PRESERVE AND PROVIDE HISTORICAL AND CONTEMPORARY GEOLOGICAL, GEOPHYSICAL AND PETROLEUM ENGINEERING DATA AND OTHER REFERENCE MATERIALS AND TECHNOLOGICAL RESOURCES AND, TO MAKE SUCH INFORMATION AVAILABLE TO THE PUBLIC.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 1, DESCRIPTION OF ORGANIZATION MISSION:</FormAndLineReferenceDesc>
        <ExplanationTxt>GEOLOGICAL, GEOPHYSICAL AND PETROLEUM ENGINEERING DATA AND OTHER REFERENCE MATERIALS AND TECHNOLOGICAL RESOURCES AND, TO MAKE SUCH INFORMATION AVAILABLE TO THE PUBLIC.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE 990 IS PRESENTED TO THE BOARD FOR REVIEW AND APPROVAL BEFORE FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC ON THE ORGANIZATION'S WEBSITE, GUIDESTAR.COM AND ALSO UPON REQUEST. THE CONFLICT OF INTEREST POLICY IS ALSO AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E</FormAndLineReferenceDesc>
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      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS WILL REVIEW FORM 990 WITH ATTACHED SCHEDULES PRIOR TO SUBMISSION TO THE IRS OR AUTHORIZE THE FINANCE COMMITTEE TO DO SO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18:</FormAndLineReferenceDesc>
        <ExplanationTxt>AT THE ADDRESS SHOWN ON THE RETURN</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>AT THE ADDRESS SHOWN ON THE RETURN</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24, OTHER EXPENSES:</FormAndLineReferenceDesc>
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