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        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>334624</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>7</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>7</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <Post1975UBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>0</TotalAmt>
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      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>7</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>7</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>0</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1200</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1400</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2200</CurrentTaxYearAmt>
        <TotalAmt>4800</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>30171</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23861</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>40397</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>19843</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>225159</CurrentTaxYearAmt>
        <TotalAmt>339431</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.98584</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.99</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00002</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part III, Line 12</FormAndLineReferenceDesc>
        <ExplanationTxt>Reimbursement for personal use of vehicle owned by Texas Natural Gas Foundation.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="R000003" softwareId="21013178" softwareVersionNum="v1.00">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleI documentId="R000004" softwareId="21013178" softwareVersionNum="v1.00">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Orange Grove ISD</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>504 South Dibrell Street</AddressLine1Txt>
          <CityNm>Orange Grove</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>78372</ZIPCd>
        </USAddress>
        <RecipientEIN>746001838</RecipientEIN>
        <IRCSectionDesc>Government Entity</IRCSectionDesc>
        <CashGrantAmt>5434</CashGrantAmt>
        <PurposeOfGrantTxt>Replace older high-emission diesel school bus with ultra low emission propane bus.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule I, Part I, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The Texas Natural Gas Foundation (TXNG) requires a detailed funding application form, including pictures and registration of the old and new vehicle(s) to verify compliance with the funding requirements. An authorized individual with the public or private entity must sign the documents. As part of the acceptance of the funding, the entity authorizes a TXNG representative to verify the onsite, when requested.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="R000005" softwareId="21013178" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Executive Director emails a scanned copy of the draft Form 990 to the Board President prior to filing it. The Board has designated the president to review and approve it.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board has adopted a Conflict of Interest Policy. Board members and key employees are required to disclose annually any interests that could give rise to conflicts. The Board monitors and enforces compliance with this policy.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The Texas Natural Gas Foundation will provide its governing documents, conflict of interest policy and financial statements (Form 990 or 990EZ) to the public upon receipt of a valid request. No requests were received during the year.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 11a 11b 11c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Texas Natural Gas Foundation received reimbursement for personal use of a Foundation-owned vehicle: $2,200</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <ReasonableCauseExplanation documentId="R000006" softwareId="21013178" softwareVersionNum="v1.00">
      <ExplanationTxt>The executive director was not aware of the requirement to file Form 990 electronically. The paper copy was mailed on April 6, 2022. This is the first year (2021) that the Texas Natural Gas Foundation has had sufficient revenue to require Form 990.</ExplanationTxt>
    </ReasonableCauseExplanation>
  </ReturnData>
</Return>