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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>14952</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RONALD JORGENSON SEPT - DEC</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>6.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>3074</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALAN HINDERMAN MAY - DEC</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>6.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>10737</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TOM BOYKO</PersonNm>
        <TitleTxt>CHIEF EXEC OFFICER/GENERAL MANAGER</TitleTxt>
        <AverageHoursPerWeekRt>43.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>366724</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>90123</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GREG HOLLISTER</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>44.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>207832</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>167018</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JIM EDWARDS</PersonNm>
        <TitleTxt>CHIEF OPERATIONS OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>45.00</AverageHoursPerWeekRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>213312</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>96568</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SCOTT PARSLEY</PersonNm>
        <TitleTxt>CHIEF MEMBER AND PUBLIC REL OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>44.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>191755</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>78466</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT SAHR</PersonNm>
        <TitleTxt>GENERAL COUNSEL</TitleTxt>
        <AverageHoursPerWeekRt>43.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>165778</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>58260</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LARRY DEKRAMER</PersonNm>
        <TitleTxt>TRANSMISSION AND SUBSTATION MANAGER</TitleTxt>
        <AverageHoursPerWeekRt>46.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>145947</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>59819</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK HOFFMAN</PersonNm>
        <TitleTxt>ENGINEERING SERVICES MANAGER</TitleTxt>
        <AverageHoursPerWeekRt>42.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>130593</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>36994</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RANDY HOFFMAN</PersonNm>
        <TitleTxt>BUDGET SERVICES MANAGER</TitleTxt>
        <AverageHoursPerWeekRt>41.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>122067</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>79815</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1833704</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>678967</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>12</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PRIMOSIR AEVENIA INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>3030 24TH AVENUE SOUTH</AddressLine1Txt>
            <CityNm>MOORHEAD</CityNm>
            <StateAbbreviationCd>MN</StateAbbreviationCd>
            <ZIPCd>56560</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>LINE CONSTRUCTION</ServicesDesc>
        <CompensationAmt>3265332</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PAUL HASTINGS LLP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>71 S WACKER DRIVE 45TH FLOOR</AddressLine1Txt>
            <CityNm>CHICAGO</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60606</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>LEGAL CONSULTANTS</ServicesDesc>
        <CompensationAmt>234727</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CH GUERNSEY AND COMPANY</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5555 NORTH GRAND BOULEVARD</AddressLine1Txt>
            <CityNm>OKLAHOMA CITY</CityNm>
            <StateAbbreviationCd>OK</StateAbbreviationCd>
            <ZIPCd>73112</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>RATE CONSULTANTS</ServicesDesc>
        <CompensationAmt>158028</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ENGBARTH DIRECTIONAL DRILLING</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>410 EAST AVE</AddressLine1Txt>
            <CityNm>CANISTOTA</CityNm>
            <StateAbbreviationCd>SD</StateAbbreviationCd>
            <ZIPCd>57012</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>LINE CONSTRUCTION</ServicesDesc>
        <CompensationAmt>129046</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BROOKS CONSTRUCTION SERVICES</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>27081 S SUNDOWNER AVE</AddressLine1Txt>
            <CityNm>SIOUX FALLS</CityNm>
            <StateAbbreviationCd>SD</StateAbbreviationCd>
            <ZIPCd>57106</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ENGINEERING CONSULTANT</ServicesDesc>
        <CompensationAmt>116458</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>7</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>SALE OF POWER</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>210769130</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>210769130</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>G&amp;T CAPITAL CREDITS</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>6759103</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6759103</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SERVICE REVENUE</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>4311523</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4311523</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>WHEELING REVENUE</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>2755442</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2755442</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>224595198</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>302792</TotalRevenueColumnAmt>
        <ExclusionAmt>302792</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossRentsGrp>
        <RealAmt>663119</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
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      <RentalIncomeOrLossGrp>
        <RealAmt>663119</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>663119</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>663119</RelatedOrExemptFuncIncomeAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <OtherAmt>9516</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <OtherAmt>3320</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <OtherAmt>6196</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>6196</TotalRevenueColumnAmt>
        <ExclusionAmt>6196</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>-403</TotalRevenueColumnAmt>
        <ExclusionAmt>-403</ExclusionAmt>
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      <OtherRevenueTotalAmt>-403</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>225566902</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>225258317</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>308585</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
        <TotalAmt>142691</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>9688657</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1279778</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>10226310</TotalAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>1897892</TotalAmt>
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      <PayrollTaxesGrp>
        <TotalAmt>807188</TotalAmt>
      </PayrollTaxesGrp>
      <InterestGrp>
        <TotalAmt>8630818</TotalAmt>
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      <DepreciationDepletionGrp>
        <TotalAmt>7384154</TotalAmt>
      </DepreciationDepletionGrp>
      <OtherExpensesGrp>
        <Desc>COST OF POWER</Desc>
        <TotalAmt>179449409</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>TRANSMISSION-OPERATIONS</Desc>
        <TotalAmt>7091220</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>ADMIN &amp; GENERAL</Desc>
        <TotalAmt>6748670</TotalAmt>
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      <OtherExpensesGrp>
        <Desc>TRANSMISSION-MAINTENANC</Desc>
        <TotalAmt>2093586</TotalAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>-9873471</TotalAmt>
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      <TotalFunctionalExpensesGrp>
        <TotalAmt>225566902</TotalAmt>
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      <SavingsAndTempCashInvstGrp>
        <BOYAmt>1960546</BOYAmt>
        <EOYAmt>685560</EOYAmt>
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      <AccountsReceivableGrp>
        <BOYAmt>23625945</BOYAmt>
        <EOYAmt>24248953</EOYAmt>
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      <InventoriesForSaleOrUseGrp>
        <BOYAmt>10255525</BOYAmt>
        <EOYAmt>9373177</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>8053496</BOYAmt>
        <EOYAmt>6803152</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>364613098</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>100073933</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>231356692</BOYAmt>
        <EOYAmt>264539165</EOYAmt>
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      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>5604723</BOYAmt>
        <EOYAmt>5950078</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <BOYAmt>92157228</BOYAmt>
        <EOYAmt>97859749</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <TotalAssetsGrp>
        <BOYAmt>373014155</BOYAmt>
        <EOYAmt>409459834</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>21988571</BOYAmt>
        <EOYAmt>23857480</EOYAmt>
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      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>195841037</BOYAmt>
        <EOYAmt>200344852</EOYAmt>
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      <UnsecuredNotesLoansPayableGrp>
        <BOYAmt>19250000</BOYAmt>
        <EOYAmt>38974148</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>3931519</BOYAmt>
        <EOYAmt>5558378</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>241011127</BOYAmt>
        <EOYAmt>268734858</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
      <CapStkTrPrinCurrentFundsGrp>
        <BOYAmt>2500</BOYAmt>
        <EOYAmt>2500</EOYAmt>
      </CapStkTrPrinCurrentFundsGrp>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </PdInCapSrplsLandBldgEqpFundGrp>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>132000528</BOYAmt>
        <EOYAmt>140722476</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>132003028</BOYAmt>
        <EOYAmt>140724976</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>373014155</BOYAmt>
        <EOYAmt>409459834</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>0</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>8721948</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>5091223</OtherCostOrOtherBasisAmt>
        <BookValueAmt>5091223</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>18689034</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2402645</DepreciationAmt>
        <BookValueAmt>16286389</BookValueAmt>
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      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>195621113</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>46800650</DepreciationAmt>
        <BookValueAmt>148820463</BookValueAmt>
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      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>145211728</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>50870638</DepreciationAmt>
        <BookValueAmt>94341090</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>264539165</TotalBookValueLandBuildingsAmt>
      <InvstProgramRelatedOrgGrp>
        <Desc>BASIN ELECTRIC POWER COOPERATIVE</Desc>
        <BookValueAmt>88376486</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>NATIONAL RURAL UTILITIES COOPERATIVE FINANCE CORPORATION</Desc>
        <BookValueAmt>5650733</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>OTHER INVESTMENTS</Desc>
        <BookValueAmt>241331</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>FEDERATED RURAL ELECTRIC INSURANCE CORPORATION</Desc>
        <BookValueAmt>578237</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>LOANS TO MEMBERS</Desc>
        <BookValueAmt>1528914</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>COBANK</Desc>
        <BookValueAmt>1484048</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
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      <TotalBookValueProgramRltdAmt>97859749</TotalBookValueProgramRltdAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED CREDITS</Desc>
        <Amt>4489676</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>POSTRETIREMENT BENEFIT OBLIGATIONS</Desc>
        <Amt>1068702</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>5558378</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>225566902</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>225566902</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>225566902</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>215878245</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>215878245</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>9688657</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>9688657</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>225566902</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COOPERATIVE IS EXEMPT FROM INCOME TAXES UNDER SECTION 501(C)(12) OF THE INTERNAL REVENUE CODE (IRS) AND IS ANNUALLY REQUIRED TO FILE A RETURN OF ORGANIZATION EXEMPT INCOME FROM INCOME TAX (FORM 990) WITH THE IRS. THE COOPERATIVE BELIEVES IT HAS APPROPRIATE SUPPORT FOR ANY TAX POSITIONS TAKEN AFFECTING ITS ANNUAL FILING REQUIREMENTS, AND AS SUCH, DOES NOT HAVE ANY UNCERTAIN TAX POSITIONS THAT ARE MATERIAL TO THE FINANCIAL STATEMENTS. THE COOPERATIVE WOULD RECOGNIZE FUTURE ACCRUED INTEREST AND PENALTIES RELATED TO UNRECOGNIZED TAX BENEFITS IN INCOME TAX EXPENSE IF SUCH INTEREST AND PENALTIES ARE INCURRED. GENERALLY, THE COOPERATIVE IS NO LONGER SUBJECT TO FEDERAL OR STATE TAX EXAMINATIONS BY TAX AUTHORITIES FOR YEARS BEFORE 2012.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALLOCATION OF 2015 MARGINS TO MEMBERS IN 2016 9,688,657.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CHIESMAN FOUNDATION FOR DEMOCRACY INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1641 DEADWOOD AVE</AddressLine1Txt>
          <CityNm>RAPID CITY</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57702</ZIPCd>
        </USAddress>
        <RecipientEIN>460438703</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>8000</CashGrantAmt>
        <PurposeOfGrantTxt>CURRICULUM SPONSOR FOR KIDS VOTING</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>LAKE AREA IMPROVEMENT CORPORATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 32</AddressLine1Txt>
          <CityNm>MADISON</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57042</ZIPCd>
        </USAddress>
        <RecipientEIN>510183368</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>10000</CashGrantAmt>
        <PurposeOfGrantTxt>ECONOMIC DEVELOPMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>SOUTH DAKOTA AGRICULTURAL &amp; RURAL LEADERSHIP INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>BOX 2170</AddressLine1Txt>
          <CityNm>BROOKINGS</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57007</ZIPCd>
        </USAddress>
        <RecipientEIN>364293293</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>7500</CashGrantAmt>
        <PurposeOfGrantTxt>AG LEADERSHIP PROGRAM</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>SOUTH DAKOTA STATE UNIVERSITY FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>BOX 525</AddressLine1Txt>
          <CityNm>BROOKINGS</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57007</ZIPCd>
        </USAddress>
        <RecipientEIN>460273801</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>30000</CashGrantAmt>
        <PurposeOfGrantTxt>SCHOLARSHIPS AND CAPITAL IMPROVEMENT CAMPAIGN</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MITCHELL TECHNICAL INSTITUTE FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1800 EAST SPRUCE</AddressLine1Txt>
          <CityNm>MITCHELL</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57301</ZIPCd>
        </USAddress>
        <RecipientEIN>460452950</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>20000</CashGrantAmt>
        <PurposeOfGrantTxt>EDUCATING PEOPLE, EMPOWERING COMM CAPITAL CAMPAIGN</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>FORWARD SIOUX FALLS</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 907</AddressLine1Txt>
          <CityNm>SIOUX FALLS</CityNm>
          <StateAbbreviationCd>SD</StateAbbreviationCd>
          <ZIPCd>57101</ZIPCd>
        </USAddress>
        <RecipientEIN>460396647</RecipientEIN>
        <IRCSectionDesc>OTHER</IRCSectionDesc>
        <CashGrantAmt>6700</CashGrantAmt>
        <PurposeOfGrantTxt>ECONOMIC DEVELOPMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>5</Total501c3OrgCnt>
      <TotalOtherOrgCnt>1</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES GRANTS TO VARIOUS FISCALLY RESPONSIBLE AND TRUSTWORTHY ORGANIZATIONS IN SOUTH DAKOTA AND MINNESOTA. THE GRANTS ARE APPROVED BY THE ORGANIZATION'S BOARD OF DIRECTORS IN THE YEARLY BUDGET AND ALSO AUTHORIZED FOR DISBURSEMENT BY MANAGEMENT UPON RECEIPT OF INVOICE. THERE ARE NO RESTRICTIONS ON THE GRANTS EXCEPT FOR THE RECIPIENTS TO USE THE FUNDS AS REPRESENTED IN THE INVOICE TO PROMOTE EDUCATION OR TO PROMOTE ECONOMIC DEVELOPMENT IN THE AREAS SERVED BY EAST RIVER ELECTRIC.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <FirstClassOrCharterTravelInd>X</FirstClassOrCharterTravelInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>TOM BOYKO</PersonNm>
        <TitleTxt>CHIEF EXEC OFFICER/GENERAL MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>364831</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1893</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>67914</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>25389</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>460027</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GREG HOLLISTER</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>205882</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1950</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>144842</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24335</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>377009</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JIM EDWARDS</PersonNm>
        <TitleTxt>CHIEF OPERATIONS OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>211362</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1950</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>85613</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>13112</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>312037</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SCOTT PARSLEY</PersonNm>
        <TitleTxt>CHIEF MEMBER AND PUBLIC REL OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>188967</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>2788</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>52822</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>27671</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>272248</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ROBERT SAHR</PersonNm>
        <TitleTxt>GENERAL COUNSEL</TitleTxt>
        <BaseCompensationFilingOrgAmt>165245</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>533</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>34795</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>25210</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>225783</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LARRY DEKRAMER</PersonNm>
        <TitleTxt>TRANSMISSION AND SUBSTATION MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>144688</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1259</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>49428</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11871</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>207246</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARK HOFFMAN</PersonNm>
        <TitleTxt>ENGINEERING SERVICES MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>130351</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>242</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>17142</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>21231</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>168966</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>RANDY HOFFMAN</PersonNm>
        <TitleTxt>BUDGET SERVICES MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>120420</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1647</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>57804</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>23311</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>203182</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>USE OF CHARTER AIR IS ALLOWED ONLY WHEN COMMERCIAL AIRLINE SERVICE IS NOT AVAILABLE OR PRACTICAL.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COOPERATIVE SHALL HAVE NO STOCK, BUT MEMBERSHIP IN THE COOPERATIVE SHALL BE EVIDENCED BY A MEMBERSHIP CERTIFICATE. MEMBERSHIP IN THE COOPERATIVE SHALL BE OF FOUR CLASSES AS FOLLOWS: (A)CLASS "A" MEMBERSHIP. ANY INCORPORATED COOPERATIVE ASSOCIATION ORGANIZED UNDER STATE LAWS GOVERNING RURAL ELECTRIC COOPERATIVES, FOR THE PURPOSES OF CONSTRUCTING, OPERATING AND MAINTAINING ELECTRIC DISTRIBUTION LINES OR SYSTEMS MAY BECOME A CLASS "A" MEMBER UPON COMPLIANCE WITH THE OTHER MEMBERSHIP REQUIREMENTS OF THESE BYLAWS. EACH CLASS "A" MEMBER SHALL BE ENTITLED TO ONE (1) DIRECTOR AND ONE (1) VOTE AT ANY COOPERATIVE MEETING. (B)CLASS "B" MEMBERSHIP. ANY MUNICIPALITY OR OTHER BODY POLITIC MAY BECOME A CLASS "B" MEMBER UPON COMPLIANCE WITH THE OTHER MEMBERSHIP REQUIREMENTS OF THESE BYLAWS. CLASS "B" MEMBERS SHALL COLLECTIVELY BE ENTITLED TO ONE (1) DIRECTOR AND ONE (1) VOTE AT ANY COOPERATIVE MEETING. (C)CLASS "C" MEMBERSHIP. ANY FIRM, ASSOCIATION, CORPORATION, BUSINESS TRUST, LIMITED LIABILITY COMPANY OR OTHER ENTITY NOT FITTING THE REQUIREMENTS OF CLASS "A OR "B" MEMBERSHIP MAY BECOME A CLASS "C" MEMBER UPON COMPLIANCE WITH THE OTHER MEMBERSHIP REQUIREMENTS OF THESE BYLAWS. CLASS "C" MEMBERS SHALL COLLECTIVELY BE ENTITLED TO ONE (1) DIRECTOR AND ONE (1) VOTE AT ANY COOPERATIVE MEETING. (D)CLASS "D" MEMBERSHIP. ANY COOPERATIVE, FIRM, ASSOCIATION, CORPORATION, BUSINESS TRUST, LIMITED LIABILITY COMPANY OR OTHER ENTITY NOT FITTING THE REQUIREMENTS OF CLASS "A", "B", OR "C" MEMBERSHIP MAY BECOME A CLASS "D" MEMBER UPON COMPLIANCE WITH THE OTHER MEMBERSHIP REQUIREMENTS OF THESE BYLAWS. CLASS "D" MEMBERS SHALL COLLECTIVELY BE ENTITLED TO ONE (1) DIRECTOR AND ONE (1) VOTE AT ANY COOPERATIVE MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE ARE NO COMMITTEES WITH AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>UPON COMPLETION OF EAST RIVER'S 990, THE RETURN WILL BE POSTED TO THE SECURE AREA OF EAST RIVER'S WEB SITE FOR THE DIRECTORS, OFFICERS, AND MANAGEMENTS REVIEW. ANY QUESTIONS OR CONCERNS WILL BE ADDRESSED AND THE 990 WILL BE FILED WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL DIRECTORS AND EMPLOYEES ARE COVERED BY THE CONFLICT OF INTEREST POLICY. AN EMPLOYEE OR DIRECTOR SHALL MAKE PROMPT AND FULL DISCLOSURE TO THE BOARD OR TO THE EMPLOYEE'S SUPERVISOR OF ANY POTENTIAL SITUATION WHICH MAY INVOLVE A CONFLICT OF INTEREST. DETERMINATION OF WHETHER A CONFLICT EXISTS AND REVIEW OF THE CONFLICT WILL BE MADE BY THE BOARD IF THE PERSON INVOLVED IS A BOARD MEMBER OR GENERAL MANAGER; IF THE PERSON INVOLVED IS AN EMPLOYEE, THE EMPLOYEE'S SUPERVISOR WILL MAKE THIS DETERMINATION. ANY EMPLOYEE OR DIRECTOR WHOSE CONDUCT VIOLATES THE CONFLICT OF INTEREST POLICY SHALL BE SUBJECT TO DISCIPLINARY ACTION UP TO AND INCLUDING EXPULSION FROM THE BOARD OR TERMINATION; THIS IS DETERMINED BY THE BOARD OR GENERAL MANAGER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION PLAN IS BASED ON A COMPILATION OF SALARY SURVEY DATA ACQUIRED THROUGH THE SERVICES OF A PROFESSIONAL CONSULTANT. AN AVERAGE OF THE MEDIAN RATES IN THE VARIOUS SURVEYS IS USED TO DETERMINE THE EAST RIVER MARKET RATE. THE BOARD OF DIRECTORS ANNUALLY REVIEWS THE MARKET DATA AND APPROVES ANY CHANGES. THIS PROCESS WAS LAST UNDERTAKEN IN 2015.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST BY CALLING THE OFFICE, STOPPING IN, OR VIA EMAIL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, COLUMN F, OTHER COMPENSATION:</FormAndLineReferenceDesc>
        <ExplanationTxt>INCLUDED IN OTHER COMPENSATION IS THE ESTIMATED CURRENT YEAR INCREASE OR DECREASE IN THE ACTUARIAL VALUE OF THE DEFINED BENEFIT PLAN FOR THE GENERAL MANAGER, ASSISTANT GENERAL MANAGERS AND OTHER HIGHLY COMPENSATED EMPLOYEES. THE CURRENT YEAR INCREASE OR DECREASE DOES NOT REPRESENT CURRENT YEAR CONTRIBUTIONS TO THE PLAN. RATHER, IT IS AN ESTIMATE OF THE INCREASE OR DECREASE IN THE ACTUARIAL VALUE OF THE PLAN AS CALCULATED BY THE PLAN ADMINISTRATOR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALLOCATION OF 2015 MARGINS TO MEMBERS IN 2016 9,688,657. RETIREMENT OF CAPITAL CREDITS -1,005,000. AMORTIZATION OF POSTRETIREMENT BENEFIT TRANSITION OBLIGATION 38,291.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 4, BENEFITS PAID TO OR FOR MEMBERS:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COOPERATIVE HAS INTERPRETED THE INSTRUCTIONS TO PART IX, LINE 4, TO MEAN PATRONAGE CAPITAL ALLOCATED FOR THE YEAR, RATHER THAN PATRONAGE CAPITAL RETIRED. THIS IS CONSISTENT WITH THE BY-LAWS OF THE COOPERATIVE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E STATEMENT OF FUNCTIONAL EXPENSES:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE LABOR, PENSION AND PAYROLL TAXES REPORTED ON LINES 6-10 ARE INCLUDED IN DISTRIBUTION EXPENSE, ADMINISTRATIVE &amp; GENERAL EXPENSE AND CUSTOMER EXPENSE. THEREFORE, LABOR, PENSION AND PAYROLL TAXES ARE SHOWN AS A REDUCTION TO OTHER EXPENSES ON LINE 24E.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>