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      <Form990PartVIISectionAGrp>
        <PersonNm>Jimmie Baggett</PersonNm>
        <TitleTxt>VP of Member Services</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21628</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jennifer Collins</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>41664</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>2029108</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>490156</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>23</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Larry J Sumrall Contractors Inc</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
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            <CityNm>Laurel</CityNm>
            <StateAbbreviationCd>MS</StateAbbreviationCd>
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          </USAddress>
        </ContractorAddress>
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        <CompensationAmt>10947856</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>WA Kendall and Company Inc</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
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            <CityNm>Lawrenceville</CityNm>
            <StateAbbreviationCd>GA</StateAbbreviationCd>
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          </USAddress>
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        <CompensationAmt>1145632</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Runnels Contracting LLC</BusinessNameLine1Txt>
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          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>MDR Construction Co Inc</BusinessNameLine1Txt>
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          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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        <ContractorAddress>
          <USAddress>
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        <ServicesDesc>Right of Way Maintenance</ServicesDesc>
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      <ProgramServiceRevenueGrp>
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        <RelatedOrExemptFuncIncomeAmt>200527847</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>Capital Credits</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>6208123</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6208123</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>497891</ExclusionAmt>
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      <GrossRentsGrp>
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      <LessRentalExpensesGrp>
        <PersonalAmt>0</PersonalAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <PersonalAmt>1310084</PersonalAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>1310084</TotalRevenueColumnAmt>
        <ExclusionAmt>1310084</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <OtherAmt>659839</OtherAmt>
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      <LessCostOthBasisSalesExpnssGrp>
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      <GainOrLossGrp>
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      <NetGainOrLossInvestmentsGrp>
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        <ExclusionAmt>659839</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>Miscellaneous Revenue</Desc>
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      <BenefitsToMembersGrp>
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      <OtherExpensesGrp>
        <Desc>Cost of Power</Desc>
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      <OtherExpensesGrp>
        <Desc>Dist Exp - Maintenance</Desc>
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      <OtherExpensesGrp>
        <Desc>Admin &amp; General Expense</Desc>
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      <OtherExpensesGrp>
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        <EOYAmt>3903000</EOYAmt>
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        <EOYAmt>3843589</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>472668417</LandBldgEquipCostOrOtherBssAmt>
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        <EOYAmt>339938430</EOYAmt>
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        <EOYAmt>475847972</EOYAmt>
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        <EOYAmt>6884380</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>197326592</EOYAmt>
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        <EOYAmt>277447853</EOYAmt>
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        <EOYAmt>278521380</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>475847972</EOYAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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      <InvstProgramRelatedOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Income taxes - The Cooperative is exempt from income taxes under Internal Revenue Code Section 501(c)(12). Management has evaluated the Cooperative's tax positions and concluded that the Cooperative has taken no uncertain tax positions that require adjustment to the financial statements.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
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        <ExplanationTxt>Reclassification of revenue/expense items from F/S 174,366.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 4b - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Margins Assigned to Members 11,107,586. Reclassification of revenue/expense items from F/S 174,366.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
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        <PersonNm>Donald L Jordan</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jason S Siegfried</PersonNm>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Ann S Hamm</PersonNm>
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        <DeferredCompensationFlngOrgAmt>82372</DeferredCompensationFlngOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jim Jordan</PersonNm>
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        <DeferredCompensationFlngOrgAmt>50316</DeferredCompensationFlngOrgAmt>
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        <NontaxableBenefitsFilingOrgAmt>11876</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>212237</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John Joseph Hardin</PersonNm>
        <TitleTxt>Staff Assistant</TitleTxt>
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        <OtherCompensationFilingOrgAmt>551</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>48252</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6359</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>189962</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Robert Chad Lewis</PersonNm>
        <TitleTxt>VP of Operations</TitleTxt>
        <BaseCompensationFilingOrgAmt>142401</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>6045</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>32776</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6359</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>187581</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jennifer Collins</PersonNm>
        <TitleTxt>Director of Executive Services</TitleTxt>
        <BaseCompensationFilingOrgAmt>127496</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>413</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>35337</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6327</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>169573</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Southern Pine Electric is a member owned electric cooperative.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Each member is entitled to cast one vote in the election of board members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>Cooperative members must approve any disposition of assets in an amount greater than ten percent (10%) of the value of the cooperative and any other items described in the bylaws.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Southern Pine Electric Cooperative is a not-for-profit membership organization whose members have identical voting rights and are assigned margins in accordance with the organization's bylaws.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The VP of Finance reviewed the completed copy of the Form 990. The Form 990 was then presented to and reviewed with the board of directors at a board meeting prior to filing the form with the Internal Revenue Service.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The President/CEO reviews the conflict of interest policy with the Board of Directors to insure compliance. This is done annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The compensation of the CEO is determined annually by the Board of Directors using compensation studies prepared by independent consultants. The CEO determines the compensation of other employees utilizing the same studies as above.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Any and all documents, policies, and other records are made available to the public upon request during normal business hours at the office of the cooperative.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The instructions to the 2017 Form 990 indicate that organizations exempt under Section 501 (c)(12) should report "patronage dividends paid" to their members in Part IX, Line 4 of the Form 990. The Cooperative has interpreted the words "patronage dividends paid" in the instructions to mean margins that are assigned or assignable to the members. The Cooperative assigns the net margins to its members each year. Therefore, the amount listed in Part IX, Line 4 represents the net margins assignable to members for the calendar year ended December 31, 2018.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Changes in Memberships 1,590. Retirement of Capital Credits -3,589,493. Gain on Capital Credits 171,421. Margins Assigned/Assignable to Members 11,107,586.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>