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          <PropertyDesc>T ROWE PRICE</PropertyDesc>
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        <OfficerDirTrstKeyEmplGrp>
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        <OfficerDirTrstKeyEmplGrp>
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          <TitleTxt>SECRETARY</TitleTxt>
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        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <IRS990ScheduleB documentId="IRS990ScheduleB-161-Copy1">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <GeneralRuleInd>X</GeneralRuleInd>
      <ContributorInformationGrp>
        <ContributorNum>1</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1Txt>WBI HOLDINGS INC</BusinessNameLine1Txt>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1Txt>1250 WEST CENTURY AVE</AddressLine1Txt>
          <CityNm>BISMARCK</CityNm>
          <StateAbbreviationCd>ND</StateAbbreviationCd>
          <ZIPCd>58503</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>411086</TotalContributionsAmt>
        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>2</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1Txt>INTERMOUNTAIN GAS COMPANY</BusinessNameLine1Txt>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1Txt>PO BOX 5650</AddressLine1Txt>
          <CityNm>BISMARCK</CityNm>
          <StateAbbreviationCd>ND</StateAbbreviationCd>
          <ZIPCd>58506</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>110563</TotalContributionsAmt>
        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>3</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1Txt>MONTANA DAKOTA UTILITIES</BusinessNameLine1Txt>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1Txt>PO BOX 5650</AddressLine1Txt>
          <CityNm>BISMARCK</CityNm>
          <StateAbbreviationCd>ND</StateAbbreviationCd>
          <ZIPCd>58506</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>518131</TotalContributionsAmt>
        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>4</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1Txt>MDU CONSTRUCTION SERVICES GROUP</BusinessNameLine1Txt>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1Txt>PO BOX 5650</AddressLine1Txt>
          <CityNm>BISMARCK</CityNm>
          <StateAbbreviationCd>ND</StateAbbreviationCd>
          <ZIPCd>58506</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>748462</TotalContributionsAmt>
        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <GainLossSaleOtherAssetsSch documentId="GainLossSaleOtherAss-119-Copy1">
      <GainLossSaleOtherAssetGrp>
        <AssetDesc>T ROWE PRICE</AssetDesc>
        <SoldDt>2024-12</SoldDt>
        <PurchaserNameGrp>
          <PersonNm>12122024</PersonNm>
        </PurchaserNameGrp>
        <GrossSalesPriceAmt>65657</GrossSalesPriceAmt>
        <TotalNetAmt>65657</TotalNetAmt>
      </GainLossSaleOtherAssetGrp>
      <GainLossSaleOtherAssetGrp>
        <AssetDesc>VANGUARD 540</AssetDesc>
        <SoldDt>2024-12</SoldDt>
        <PurchaserNameGrp>
          <PersonNm>12122024</PersonNm>
        </PurchaserNameGrp>
        <GrossSalesPriceAmt>469849</GrossSalesPriceAmt>
        <TotalNetAmt>469849</TotalNetAmt>
      </GainLossSaleOtherAssetGrp>
    </GainLossSaleOtherAssetsSch>
    <InvestmentsOtherSchedule2 documentId="InvestmentsOtherSche-119-Copy1">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>T ROWE PRICE</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>911016</BookValueAmt>
        <EOYFMVAmt>1036118</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>VANGUARD 535</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>218749</BookValueAmt>
        <EOYFMVAmt>193809</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>VANGUARD 540</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>750144</BookValueAmt>
        <EOYFMVAmt>2423371</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>VANGUARD 549</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>481435</BookValueAmt>
        <EOYFMVAmt>467814</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <OtherExpensesSchedule documentId="OtherExpensesSchedul-363-Copy1">
      <OtherExpensesScheduleGrp>
        <Desc>BANK SERVICE CHARGES</Desc>
        <RevenueAndExpensesPerBooksAmt>1032</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>1032</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>SCHOLARSHIP PROGRAM MANAGEMENT</Desc>
        <RevenueAndExpensesPerBooksAmt>7780</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>7780</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>SECRETARY OF STATE</Desc>
        <RevenueAndExpensesPerBooksAmt>15</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>15</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>SOFTWARE</Desc>
        <RevenueAndExpensesPerBooksAmt>1753</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>1753</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
  </ReturnData>
</Return>