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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DAVID B JOHNSON</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JAMEY HULSEY</PersonNm>
        <TitleTxt>SR VP-OPS - FORMER</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANGIE JONES</PersonNm>
        <TitleTxt>VP - HR - FORMER</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>53651</DeferredCompensationFlngOrgAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PAGE 1, PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>MARIETTA COUNTRY CLUB (1) WILLIE T. NELSON (FORMER PRESIDENT &amp; CEO) - 1,584 GEORGIAN CLUB (1) PETER HEINTZELMAN (PRESIDENT &amp; CEO) - 751 (2) BRETT STOVERN (CFO) - 191 (3) KEVAN ESPY (VP OF ELEC. OPS.) - 1,111 (4) MARK GODDARD (VP OF MKT/CORP. COMM.) - 191 (5) TRIPPER SHARP (DIRECTOR) - 191 (6) DAVID MCCLELLAN (DIRECTOR) - 191</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PAGE 1, PART I, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>WILLIE T. NELSON 0 1,076,319 0 DAVID B. JOHNSON 0 231,357 0 ROBERT D. STEELE 730,080 362,107 0 JAMEY HULSEY 59,171 176,309 0 ANGIE JONES 292,780 2,858 0</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc7">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>COBB EMC COMMITS TO SAFELY DELIVERING RELIABLE, COMPETITIVELY PRICED ELECTRICITY WHILE BEING ACCOUNTABLE TO OUR MEMBER-OWNERS THROUGH SOUND GOVERNANCE, MANAGEMENT, OPERATING PRACTICES AND IMPROVING QUALITY OF LIFE IN ITS LOCAL COMMUNITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION'S RECORDS ARE MAINTAINED IN ACCORDANCE WITH THE UNIFORM SYSTEM OF ACCOUNTS PRESCRIBED BY THE FEDERAL ENERGY REGULATORY COMMISSION (18CFR.PART 101). THOSE PRACTICES UTILIZE ALLOCATION OF CERTAIN EXPENSES BASED ON LABOR CHARGES OR OTHER ALLOCATION BASES. AS A RESULT, IT WOULD REQUIRE SIGNIFICANT EFFORT TO BREAK OUT EXPENSES IN THE FUNCTIONAL CATEGORIES PROVIDED FOR ON THE STATEMENT OF FUNCTIONAL EXPENSES. MANAGEMENT HAS OPTED TO CLASSIFY ITS EXPENSES ON THE STATEMENT OF FUNCTIONAL EXPENSES IN THE SAME MANNER IT REPORTS ITS FINANCIAL RESULTS TO LENDERS AND ITS MEMBER-OWNERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION HAS MEMBERS AS PROVIDED FOR IN ITS BYLAWS WHICH ARE INCLUDED AS A PART OF THIS RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION'S MEMBERS DEMOCRATICALLY ELECT MEMBERS OF THE GOVERNING BODY AS PROVIDED FOR IN THE CORPORATION'S BYLAWS WHICH ARE INCLUDED AS PART OF THIS RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>CERTAIN DECISIONS OF THE GOVERNING BODY ARE SUBJECT TO APPROVAL BY MEMBERS AS PROVIDED FOR IN THE CORPORATION'S BYLAWS WHICH ARE INCLUDED AS A PART OF THIS RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS REVIEWED BY THE FULL BOARD OF DIRECTORS PRIOR TO SUBMITTAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION REGULARY AND CONSISTENTLY MONITORS AND ENFORCES COMPLIANCE WITH THE FOLLOWING POLICIES, WHIC ARE INCLUDED AS PART OF THIS RETURN: POLICY 602 - CONFLICT OF INTEREST POLICY 901 - EMPLOYEE CODE OF CONDUCT POLICY 911 - EMPLOYEES' OUTSIDE ACTIVITIES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>AS OUTLINED IN BOARD POLICY 608, WHICH IS ATTACHED TO THIS RETURN, THE ANNUAL CEO REVIEW IS CONDUCTED BY THE BOARD'S HUMAN RESOURCES COMMITTEE, WHICH MAKES A COMPENSATION RECOMMENDATION TO THE FULL BOARD FOR THEIR APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>KEY EMPLOYEE COMPENSATION IS REVIEWED AND APPROVED AS PROVIDED FOR IN BOARD POLICY 908, A COPY OF WHICH IS INCLUDED AS A PART OF THIS RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CORPORATION MAKES ITS BYLAWS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC AS PART OF ITS FORM 990. THE FORM 990 IS AVAILABLE UPON REQUEST AS REFLECTED IN PART VI SECTION C LINE 18. IN ADDITION, THE CORPORATION'S FORM 990 IS AVAILABLE IN THE PUBLIC DOMAIN THROUGH WEBSITES SUCH AS GUIDESTAR (WWW.GUIDESTAR.ORG).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 - PART XI LINE 8 - PRIOR PERIOD ADJUSTMENT THE ELECTRIC UTILITY INDUSTRY HAS HISTORICALLY ALLOWED UTILITIES TO EITHER RECORD UNIBLLED REVENUE OR DISCLOSE THE UNBILLED AMOUNTS IN THEIR AUDITED FINANCIAL STATMEMENTS WITHOUT RECORDING. UNTIL 2018, THE CORPORATION CHOSE TO REPORT THE UNBILLED REVENUE AMOUNT AS A DISCLOSURE ONLY. DURING 2018, THE CORPORATION BEGAN RECORDING UNBILLED ELECGRIC REVENUE DUE TO MANAGEMENT'S BELIEF THAT IT PROVIDES A BETTER REFLECTION OF THE CORPORATION'S FINANCIAL POSITION AND RESULTS OF OPERATIONS. IN ADDITION, TECHNOLOGY NOW EXISTS TO OBTAIN A MORE ACCURATE DETERMINATION OF THESE AMOUNTS, ELIMINATING ESTIMATES RELATED TO USAGE THAT PREVIOUSLY AFFECTED THE CALCULATION. THIS CHANGE IN ACCOUNTING PRINCIPLE RESULTED IN A PRIOR PERIOD ADJUSTMENT OF 19,457,280.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>WHOLLY-OWNED SUBSIDIARY EARNINGS 19,643,770 OTHER COMPREHENSIVE INCOME 5,763,633 CHANGE IN DONATED CAPITAL 3,980 CHANGE IN MEMBERSHIP FEES -21,320 TOTAL 25,390,063</ExplanationTxt>
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          <ZIPCd>30302</ZIPCd>
        </USAddress>
        <EIN>203608242</EIN>
        <PrimaryActivitiesTxt>NAT GAS MA</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>GA</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>19072711</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>112000000</ShareOfEOYAssetsAmt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>COBB ENERGY MANAGEMENT CORPORATION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>1000 EMC PARKWAY</AddressLine1Txt>
          <CityNm>MARIETTA</CityNm>
          <StateAbbreviationCd>GA</StateAbbreviationCd>
          <ZIPCd>30060</ZIPCd>
        </USAddress>
        <EIN>582345061</EIN>
        <PrimaryActivitiesTxt>HOLDING CO</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>GA</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ShareOfEOYAssetsAmt>4846461</ShareOfEOYAssetsAmt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>true</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>true</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>GAS SOUTH LLC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>F</TransactionTypeTxt>
        <InvolvedAmt>15800000</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>GAS SOUTH LLC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>Q</TransactionTypeTxt>
        <InvolvedAmt>1911173</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>GAS SOUTH LLC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>1113127</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>GAS SOUTH LLC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>D</TransactionTypeTxt>
        <InvolvedAmt>49246</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE R</FormAndLineReferenceDesc>
        <ExplanationTxt>RELATED ORGANIZATIONS: COBB ENERGY MANAGEMENT CORPORATION (COBB ENERGY): COBB ENERGY WAS INCORPORATED IN THE STATE OF GEORGIA ON SEPTEMBER 3, 1997 TO PROVIDE VARIOUS SERVICES TO COBB ELECTRIC MEMBERSHIP CORPORATION (COBB EMC), ITS SUBSIDIARIES AND OTHER THIRD PARTIES. AS OF DECEMBER 31, 2018 COBB ENERGY MANAGEMENT CORPORATION HAS NO OPERATING ACTIVITIES. GAS SOUTH, LLC (GAS SOUTH): GAS SOUTH IS A NATURAL GAS MARKETER THAT SERVES RESIDENTIAL, BUSINESS, GOVERNMENTAL, AND INSTITUTIONAL CUSTOMERS THROUGHOUT THE SOUTHEAST IN AREAS WHERE CUSTOMERS HAVE THE ABILITY TO CHOOSE THEIR ENERGY PROVIDER. GAS SOUTH IS A CERTIFIED NATURAL GAS MARKETER IN THE STATE OF GEORGIA AND COMPETES TO SERVE CUSTOMERS WHO ARE CONNECTED TO THE LOCAL DISTRIBUTION COMPANY (LDC), ATLANTA GAS LIGHT (AGL). GAS SOUTH PURCHASES NATURAL GAS FROM WHOLESALE SUPPLIERS FOR DELIVERY TO THE CITYGATE WHERE AGL ASSUMES RESPONSIBILITY AND LIABILITY ASSOCIATED WITH THE DELIVERY OF NATURAL GAS TO GAS SOUTH'S RETAIL CUSTOMERS. GAS SOUTH ALSO SERVES COMMERCIAL AND INDUSTRIAL CUSTOMERS IN THE STATE OF FLORIDA AND LARGE COMMERCIAL AND INDUSTRIAL CUSTOMERS IN PORTIONS OF NORTH CAROLINA AND SOUTH CAROLINA THROUGH OTHER LDCS. GAS SOUTH ALSO SERVES LARGE CUSTOMERS THAT ARE CONNECTED DIRECTLY TO INTERSTATE PIPELINES AND WHOLESALES NATURAL GAS TO OTHER SERVICE PROVIDERS. GAS SOUTH'S MANAGEMENT COMMITTEE IS MADE UP OF COBB EMC EXECUTIVE MANAGEMENT AND THREE COBB EMC BOARD MEMBERS. COBB EMC BOARD MEMBERS SERVING ON THE MANAGEMENT COMMITTEE ARE COMPENSATED DIRECTLY BY GAS SOUTH. THESE AMOUNTS ARE REPORTED ON COBB EMC'S FORM 990 AS "REPORTABLE COMPENSATION FROM RELATED ORGANIZATIONS". COBB EMC ENTERED INTO AN AGREEMENT TO GUARANTY GAS SOUTH'S OBLIGATIONS TO CERTAIN COUNTERPARTIES IN 2018. COBB EMC CHARGES GAS SOUTH A MARKET RATE BASED ON THE AGREEMENT. GAS SOUTH PAID COBB EMC 49,246 RELATED TO THE AMOUNTS GUARANTEED IN 2018.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>