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        <PersonNm>WAYNE POLLAT</PersonNm>
        <TitleTxt>DISTRICT FOREMAN</TitleTxt>
        <AverageHoursPerWeekRt>52.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>186791</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>51430</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>THOMAS MULLOY</PersonNm>
        <TitleTxt>DISTRICT FOREMAN</TitleTxt>
        <AverageHoursPerWeekRt>48.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>169467</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>57433</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KENT HATLING</PersonNm>
        <TitleTxt>SERVICE FOREMAN</TitleTxt>
        <AverageHoursPerWeekRt>48.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>167527</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>74214</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TROY BIFULCO</PersonNm>
        <TitleTxt>VICE PRESIDENT OF TECH. &amp; SVR</TitleTxt>
        <AverageHoursPerWeekRt>46.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>165347</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>96845</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1971620</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>800949</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>69</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SCHULTE TA INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5950 SWANSON RD</AddressLine1Txt>
            <CityNm>GILLETTE</CityNm>
            <StateAbbreviationCd>WY</StateAbbreviationCd>
            <ZIPCd>82718</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONTRACT LABOR</ServicesDesc>
        <CompensationAmt>2138212</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>RMS INSTRUMENT AND ELECTRIC LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1530 BUSINESS CIRCLE</AddressLine1Txt>
            <CityNm>GILLETTE</CityNm>
            <StateAbbreviationCd>WY</StateAbbreviationCd>
            <ZIPCd>82716</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONTRACT LABOR</ServicesDesc>
        <CompensationAmt>1306586</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BESLER INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 15274</AddressLine1Txt>
            <CityNm>RAPID CITY</CityNm>
            <StateAbbreviationCd>SD</StateAbbreviationCd>
            <ZIPCd>57709</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONTRACT LABOR</ServicesDesc>
        <CompensationAmt>1086594</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>NORTHEAST WY CONSTRUCTION INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 1922</AddressLine1Txt>
            <CityNm>GILLETTE</CityNm>
            <StateAbbreviationCd>WY</StateAbbreviationCd>
            <ZIPCd>82717</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONTRACT LABOR</ServicesDesc>
        <CompensationAmt>612100</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>COOPS SPRAY MULCHING SERVICE</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 761</AddressLine1Txt>
            <CityNm>SUNDANCE</CityNm>
            <StateAbbreviationCd>WY</StateAbbreviationCd>
            <ZIPCd>82729</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONTRACT LABOR</ServicesDesc>
        <CompensationAmt>553678</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>18</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>ELECTRIC SERVICE</Desc>
        <BusinessCd>221122</BusinessCd>
        <TotalRevenueColumnAmt>162921758</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>162921758</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>CAPITAL CREDITS</Desc>
        <BusinessCd>221122</BusinessCd>
        <TotalRevenueColumnAmt>8373713</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8373713</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>TRANSMISSION REVENUE</Desc>
        <BusinessCd>211121</BusinessCd>
        <TotalRevenueColumnAmt>2674673</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2674673</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>OTHER RENTAL INCOME</Desc>
        <BusinessCd>531190</BusinessCd>
        <TotalRevenueColumnAmt>150401</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>150401</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>JOINT USE POLE REVENUE</Desc>
        <BusinessCd>531190</BusinessCd>
        <TotalRevenueColumnAmt>14423</TotalRevenueColumnAmt>
        <ExclusionAmt>14423</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>174134968</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>2062429</TotalRevenueColumnAmt>
        <ExclusionAmt>2062429</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossRentsGrp>
        <RealAmt>16345</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>13592</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>2753</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>2753</TotalRevenueColumnAmt>
        <ExclusionAmt>2753</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <OtherAmt>77030</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <OtherAmt>52907</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <OtherAmt>24123</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>24123</TotalRevenueColumnAmt>
        <ExclusionAmt>24123</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>176224273</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>174120545</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2103728</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>196426</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>9723675</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1562787</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>9873060</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>3454262</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>2308357</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>848302</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>388794</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>56428</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>43144</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>160544</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>83206</TotalAmt>
      </AdvertisingGrp>
      <InterestGrp>
        <TotalAmt>5920470</TotalAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>11017012</TotalAmt>
      </DepreciationDepletionGrp>
      <OtherExpensesGrp>
        <Desc>PURCHASED POWER</Desc>
        <TotalAmt>120521921</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OPER &amp; MAINT. EXP.-DIST</Desc>
        <TotalAmt>7472883</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OPER &amp; MAINT. EXP.-TRAN</Desc>
        <TotalAmt>1343403</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OTHER EXPENSES</Desc>
        <TotalAmt>686748</TotalAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>562851</TotalAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>176224273</TotalAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>1750</BOYAmt>
        <EOYAmt>1750</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>16276282</BOYAmt>
        <EOYAmt>19376121</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>16717622</BOYAmt>
        <EOYAmt>16354310</EOYAmt>
      </AccountsReceivableGrp>
      <OthNotesLoansReceivableNetGrp>
        <BOYAmt>1100931</BOYAmt>
        <EOYAmt>1041968</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>7850591</BOYAmt>
        <EOYAmt>9559628</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>1393690</BOYAmt>
        <EOYAmt>786244</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>446098915</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>229675613</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>212474724</BOYAmt>
        <EOYAmt>216423302</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>19122006</BOYAmt>
        <EOYAmt>1602958</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>16772202</BOYAmt>
        <EOYAmt>18051440</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <BOYAmt>152297125</BOYAmt>
        <EOYAmt>151755059</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>108139</BOYAmt>
        <EOYAmt>93409</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>54240370</BOYAmt>
        <EOYAmt>47635440</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>498355432</BOYAmt>
        <EOYAmt>482681629</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>17877638</BOYAmt>
        <EOYAmt>19041682</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>19109112</BOYAmt>
        <EOYAmt>21260850</EOYAmt>
      </DeferredRevenueGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>164978684</BOYAmt>
        <EOYAmt>156279382</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>61423841</BOYAmt>
        <EOYAmt>51901162</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>263389275</BOYAmt>
        <EOYAmt>248483076</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <CapStkTrPrinCurrentFundsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </CapStkTrPrinCurrentFundsGrp>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </PdInCapSrplsLandBldgEqpFundGrp>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>234966157</BOYAmt>
        <EOYAmt>234198553</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>234966157</BOYAmt>
        <EOYAmt>234198553</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>498355432</BOYAmt>
        <EOYAmt>482681629</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>0</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>-767604</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <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>8730398</OtherCostOrOtherBasisAmt>
        <BookValueAmt>8730398</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <InvestmentCostOrOtherBasisAmt>349244</InvestmentCostOrOtherBasisAmt>
        <OtherCostOrOtherBasisAmt>9934628</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>7501370</DepreciationAmt>
        <BookValueAmt>2782502</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>405770912</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>222922591</DepreciationAmt>
        <BookValueAmt>182848321</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>21313733</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>-748348</DepreciationAmt>
        <BookValueAmt>22062081</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>216423302</TotalBookValueLandBuildingsAmt>
      <InvstProgramRelatedOrgGrp>
        <Desc>ASSOCIATED ORGANIZATIONS - PATRONAGE CAPITAL</Desc>
        <BookValueAmt>149108271</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>ASSOCIATED ORGANIZATIONS - NON G&amp;T</Desc>
        <BookValueAmt>2646788</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <TotalBookValueProgramRltdAmt>151755059</TotalBookValueProgramRltdAmt>
      <OtherAssetsOrgGrp>
        <Desc>SPECIAL FUND - COST OF RETIREMENT (CBM)</Desc>
        <BookValueAmt>18137445</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>SPECIAL FUND - BASIN ECONOMIC DEVELOPMENT FUND</Desc>
        <BookValueAmt>1000281</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>SPECIAL FUND - CONSERVATION LOANS</Desc>
        <BookValueAmt>314208</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>INTEREST AND OTHER RECEIVABLES</Desc>
        <BookValueAmt>159171</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>ACCRUED UTILITY REVENUES</Desc>
        <BookValueAmt>2595901</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>SPECIAL FUND - NRECA VCAP</Desc>
        <BookValueAmt>6928434</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>SPECIAL FUND - DEFERRED REVENUE</Desc>
        <BookValueAmt>18500000</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>47635440</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>CUSTOMER ADVANCES FOR CONSTRUCTION</Desc>
        <Amt>12475701</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CBM PREPAID COST OF RETIREMENT</Desc>
        <Amt>17946895</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>POST RETIREMENT BENEFIT</Desc>
        <Amt>1630827</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CONSUMER DEPOSITS/INTEREST</Desc>
        <Amt>16250475</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>MISCELLANEOUS</Desc>
        <Amt>474580</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>COST OF POWER ADJUSTMENT</Desc>
        <Amt>2154840</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>OBLIGATIONS UNDER RIGHT TO USE LEASES</Desc>
        <Amt>967844</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>51901162</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>176432587</TotalRevEtcAuditedFinclStmtAmt>
      <OtherRevenueAmt>208314</OtherRevenueAmt>
      <RevenueNotReportedAmt>208314</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>176224273</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>176224273</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>166500598</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>166500598</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>9723675</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>9723675</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>176224273</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COOPERATIVE EVALUATES ITS TAX POSITIONS THAT HAVE BEEN TAKEN OR ARE EXPECTED TO BE TAKEN ON INCOME TAX RETURNS TO DETERMINE IF AN ACCRUAL IS NECESSARY FOR UNCERTAIN TAX POSITIONS. AS OF DECEMBER 31, 2024 AND 2023 THE UNRECOGNIZED TAX BENEFITS ACCRUAL WAS ZERO. THE COOPERATIVE WILL RECOGNIZE FUTURE ACCRUED INTEREST AND PENALTIES RELATED TO UNRECOGNIZED TAX BENEFITS IN INCOME TAX EXPENSE IF INCURRED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>UNREALIZED GAINS ARISING DURING THE YEAR 23,187. NRECA VOLUNTARY CONTRIBUTION ACCELERATED PROGRAM GAINS 517,416. AMORTIZATION OF GAIN/LOSS AND PRIOR SERVICE COST -332,289.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>2024 MARGINS ALLOCATED IN 2025 9,723,675.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI LINE 1E, COLUMN C</FormAndLineReferenceDesc>
        <ExplanationTxt>NEGATIVE ACCUMULATED DEPRECIATION ON LINE 1E, COLUMN C, IS DUE TO RETIREMENT WORK IN PROCESS WHICH WILL REDUCE ACCUMULATED DEPRECIATION WHEN BOOKED TO THE PLANT ACCOUNTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>POWDER RIVER ENERGY CORPORATION FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 930</AddressLine1Txt>
          <CityNm>SUNDANCE</CityNm>
          <StateAbbreviationCd>WY</StateAbbreviationCd>
          <ZIPCd>82729</ZIPCd>
        </USAddress>
        <RecipientEIN>208802389</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>107577</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>BOOK</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>ADMINISTRATIVE SUPPORT</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>CHARITABLE DONATION</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY PROVIDES FUNDING TO THE POWDER RIVER ENERGY CORPORATION FOUNDATION THROUGH DONATIONS AND SPONSORSHIPS, AS WELL AS PROVIDING ADMINISTRATIVE SUPPORT. THE FOUNDATION'S BOARD OF DIRECTORS IS APPOINTED BY THE COMPANY'S BOARD OF DIRECTORS. NON-CASH ASSISTANCE GIVEN TO THE POWDER RIVER ENERGY CORPORATION FOUNDATION INCLUDES ADMINISTRATIVE, LEGAL, AND OPERATIONAL SUPPORT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
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      <ClubDuesOrFeesInd>X</ClubDuesOrFeesInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
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        <PersonNm>BRIAN MILLS</PersonNm>
        <TitleTxt>CHIEF EXECUTIVE OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>249301</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5301</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>27600</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>93424</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>37380</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>413006</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>WILLIAM MERTZ-CFAO TO 102024</PersonNm>
        <TitleTxt>DIR OF PRECORP SERV (EFF 10/2024)</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompensationFlngOrgAmt>71787</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>356636</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>QUENTIN ROGERS</PersonNm>
        <TitleTxt>VICE PRESIDENT OF ENG. &amp; TECH SRV</TitleTxt>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>52122</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>35980</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>279752</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>TROY BIFULCO</PersonNm>
        <TitleTxt>VICE PRESIDENT OF TECH. &amp; SVR</TitleTxt>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>59974</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>36871</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>262192</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>RICHARD HALLORAN</PersonNm>
        <TitleTxt>VP OF SYSTEM OPERATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>162099</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5147</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>46253</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>36877</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>250376</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KENT HATLING</PersonNm>
        <TitleTxt>SERVICE FOREMAN</TitleTxt>
        <BaseCompensationFilingOrgAmt>165136</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2012</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>379</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>49468</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24746</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>241741</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MICHAEL BINGHAM</PersonNm>
        <TitleTxt>DISTRICT FOREMAN</TitleTxt>
        <BaseCompensationFilingOrgAmt>180828</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>1641</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>379</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>38796</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19081</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>240725</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>WAYNE POLLAT</PersonNm>
        <TitleTxt>DISTRICT FOREMAN</TitleTxt>
        <BaseCompensationFilingOrgAmt>184668</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>1744</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>379</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>26684</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24746</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>238221</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>THOMAS MULLOY</PersonNm>
        <TitleTxt>DISTRICT FOREMAN</TitleTxt>
        <BaseCompensationFilingOrgAmt>167286</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>1802</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>379</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>32687</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24746</NontaxableBenefitsFilingOrgAmt>
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        <TotalCompensationFilingOrgAmt>226900</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ABBY OLSON-MGR OF TREAS TO</PersonNm>
        <TitleTxt>10/24);INTERIM VP OF FIN (EFF 10/24)</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>4080</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>17991</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>36502</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>179502</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY HEADQUARTERS ARE LOCATED IN A REMOTE, RURAL AREA IN THE EXTREME NORTHEAST CORNER OF WYOMING. IT IS OCCASIONALLY DEEMED EXPEDIENT TO CHARTER SMALL PISTON-ENGINED AIRPLANES WHEN THE COMPANY BUSINESS REQUIRES TRAVEL OUTSIDE OF OUR SERVICE TERRITORY. THIS OCCURS PRIMARILY WHEN TRAVEL IS NECESSARY TO TWO DESTINATIONS. THE FIRST DESTINATION IS THE STATE CAPITAL IN CHEYENNE, WYOMONG FOR REGULATORY, GOVERNMENTAL, AND ASSOCIATED MEETINGS OR ACTIVITIES AFFECTING THE COMPANY. THE SECOND LOCATION IS THE BISMARCK, NORTH DAKOTA OFFICES OF OUR PRINCIPAL POWER SUPPLIER BASIN ELECTRIC POWER COOPERATIVE. POWDER RIVER ENERGY PURCHASES POWER FROM BASIN ELECTRIC THROUGH MEMBERS 1ST POWER COOPERATIVE. THESE CHARTERS ARE FOR BUSINESS PURPOSES ONLY, HAVE NO COMPENSATORY PURPOSES WHATSOEVER, AND OFTEN ALLOW FOR SAME DAY ROUND TRIP TRAVEL. ONLY THE COMPANY CEO, BRIAN MILLS, OR ITS BOARD OF DIRECTORS CAN AUTHORIZE CHARTER EXPENSE. THE COMPANY OFFERS A WELLNESS PROGRAM EACH YEAR FOR ALL EMPLOYEES. PART OF THE PROGRAM INCLUDES REIMBURSEMENT OF FITNESS CENTER OR WEIGHT MANAGEMENT PROGRAM FEES IN AN AMOUNT OF 50% OF THE TOTAL FEES, WITH A MAXIMUM OF $50 PER QUARTER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, COLUMN C</FormAndLineReferenceDesc>
        <ExplanationTxt>COLUMN C INCLUDES THE CHANGE IN ACTUARIAL VALUE OF THE DEFINED BENEFIT PLAN. SEE BELOW FOR THE CHANGE IN ACTUARIAL VALUE AND ACTUAL DEFINED BENEFIT PLAN COSTS: EMPLOYEE CHANGE IN ACTUARIAL VALUE ACTUAL BENEFIT EXPENSE BRIAN MILLS $78,464 $53,016 QUENTIN ROGERS $41,931 $40,866 TROY BIFULCO $50,996 $35,296 MICHAEL BINGHAM $31,597 $38,035 THOMAS MULLOY $25,487 $38,035 WAYNE POLLAT $19,484 $38,035 RICHARD HALLORAN $37,158 $35,510 KENT HALTING $42,268 $38,035 ABBY OLSON $10,683 $26,459 WILLIAM MERTZ $58,678 $50,818</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY IS ORGANIZED AS AN ELECTRICAL COOPERATIVE, AND THEREFORE HAS MEMBER-OWNERS WHO ELECT THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE ARE NO COMMITTEES WITH BROAD AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 AND ACCOMPANYING SCHEDULES ARE PREPARED BY THE COMPANY'S CONTROLLER AND REVIEWED BY THE CHIEF FINANCIAL AND ADMINISTRATIVE OFFICER. THE FORM 990 IS PROVIDED TO THE BOARD OF DIRECTORS FOR THEIR REVIEW, AND PRESENTED AT A REGULARLY SCHEDULED BOARD MEETING TO ADDRESS QUESTIONS. THE PROCESS INCLUDES A REVIEW OF THE FORM BY THE COMPANY'S AUDITORS. ANY NECESSARY REVISIONS ARE INCORPORATED BEFORE THE CHIEF FINANCIAL AND ADMINISTRATION OFFICER AUTHORIZES ELECTRONIC FILING OF THE FORM 990 AND SCHEDULES. THE FINAL VERSION IS PROVIDED TO AUDITORS FOR FILING AND TO THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL EMPLOYEES AND DIRECTORS ARE EXPECTED TO BE FAMILIAR WITH THE COMPANY'S CODE OF ETHICS POLICY AND ARE EXPECTED TO DISCLOSE ANY SITUATIONS THAT VIOLATE THE SPIRIT AND INTENT OF THE POLICY, DECISIONS CONSIDERED INCONSISTENT WITH THE CONFLICT OF INTEREST POLICY ARE REPORTED TO THE ENTIRE BOARD OF DIRECTORS THROUGH THE BOARD PRESIDENT, VICE PRESIDENT OR CEO. THE BOARD OF DIRECTORS SHALL DECIDE IF AN INTEREST SHOULD PREVENT THE COOPERATIVE FROM ENTERING INTO A PARTICULAR TRANSACTION. A PERSON WHO IS EMPLOYED BY, OR HAS A SUBSTANTIAL FINANCIAL INTEREST IN, A COMPETING BUSINESS OR ONE SELLING ENERGY OR SUPPLIES TO THE COOPERATIVE IS NOT QUALIFIED TO BE A MEMBER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY HAS A COMPENSATION ADMINISTRATION POLICY WHICH PROVIDES THAT THE BOARD OF DIRECTORS MAINTAINS FINAL AUTHORITY FOR COMPENSATION ADMINISTRATION. THE COMPANY HIRES A COMPENSATION CONSULTANT WHO PROVIDES INFORMATION ON MARKET BENCHMARKS AND ASSISTS THE COMPANY IN CREATING ITS SALARY STRUCTURE. THE BOARD OF DIRECTORS IS THE ULTIMATE DETERMINING BODY OF THE SALARY OF THE CEO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY FILES AN ANNUAL FINANCIAL STATEMENT, THE RUS FINANCIAL AND OPERATING REPORT ELECTRIC DISTRIBUTION, WITH THE UNITED STATES DEPARTMENT OF AGRICULTURE, WHICH IS A MATTER OF PUBLIC RECORD. THE COMPANY, WHICH IS ORGANIZED AS A COOPERATIVE, AND THEREFORE IS OWNED BY ITS MEMBERS, MAKES ALL OF ITS GOVERNING DOCUMENTS AND POLICIES AVAILABLE TO THEM. BYLAWS ARE PROVIDED WHEN A NEW MEMBER ENROLLS, AND ALL OTHER POLICIES ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART IX, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY 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 XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALLOCATED CAPITAL CREDITS 18,947,510. RETIRED CAPITAL CREDITS -12,516,002. PATRONAGE CAPITAL ASSIGNABLE -8,878,089. NET CHANGE IN RETIRED, UNCLAIMED CAPITAL CREDITS 1,470,664. AMORTIZATION OF POST RETIREMENT BENEFIT -104,767. NET UNREALIZED LOSS ON INVESTMENTS 313,080.</ExplanationTxt>
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        </USAddress>
        <EIN>208802389</EIN>
        <PrimaryActivitiesTxt>CHARITABLE GIVING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>WY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>POWDER RIVER ENERGY CORPORATION</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>1</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>1</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>POWDER RIVER ENERGY CORPORATION FOUNDATION INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>B</TransactionTypeTxt>
        <InvolvedAmt>157577</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>BOOK</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE R, PART I</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPANY HAS A DISREGARDED ENTITY, PRECORP SERVICES, LLC, WHICH HAS NOT, TO-DATE, CONDUCTED ANY ACTIVITY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE R, PART II</FormAndLineReferenceDesc>
        <ExplanationTxt>IN 2007, THE COMPANY ESTABLISHED THE POWDER RIVER ENERGY CORPORATION FOUNDATION, A CHARITABLE ORGANIZATION DEDICATED TO PROVIDING DONATIONS AND GRANTS FOR CHARITABLE PURPOSES WITHIN THE COMPANY'S SERVICE TERRITORY. THE FOUNDATION HAS A SEPARATE BOARD OF DIRECTORS. THE COMPANY CONTINUES TO PROVIDE ADMINISTRATIVE SERVICES TO THE FOUNDATION, INCLUDING ACCOUNTING, OFFICE SPACE AND SUPPLIES, AND COMMUNICATIONS. THE COMPANY PROCESSES AND TRANSFERS DONATIONS MADE THROUGH THE OPERATION ROUND-UP PROGRAM, WHICH ALLOWS MEMBERS TO CHOOSE TO ROUND UP THEIR ELECTRIC BILL TO THE NEAREST DOLLAR WITH THE DIFFERENCE CONTRIBUTED TO THE FOUNDATION AS A DONATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>