Common use of Amount and Terms of the Commitments Clause in Contracts

Amount and Terms of the Commitments. 30 Section 2.1. General Description of Facilities 30 Section 2.2. Revolving Loans 31 Section 2.3. Procedure for Revolving Borrowings 31 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 Section 2.6. Interest Elections 33 Section 2.7. Optional Reduction and Termination of Commitments 34 Section 2.8. Repayment of Loans 35 Section 2.9. Evidence of Indebtedness 35 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 Section 2.13. Fees 37 Section 2.14. Computation of Interest and Fees 38 Section 2.15. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 Section 2.17. Increased Costs 39 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III

Amount and Terms of the Commitments. 30 16 Section 2.1. General Description of Facilities 30 16 Section 2.2. Revolving Loans 31 16 Section 2.3. Procedure for Revolving Borrowings 31 16 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 17 Section 2.62.5. Interest Elections 33 17 Section 2.72.6. Optional Reduction and Termination of Commitments 34 18 Section 2.82.7. Repayment of Loans 35 19 Section 2.92.8. Evidence of Indebtedness 35 19 Section 2.102.9. Optional Prepayments 35 19 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 20 Section 2.132.11. Fees 37 20 Section 2.142.12. Computation of Interest and Fees 38 21 Section 2.152.13. Inability to Determine Interest Rates 38 21 Section 2.14. Illegality 22 Section 2.15. Increased Costs 22 Section 2.16. Illegality 38 Funding Indemnity 23 Section 2.17. Increased Costs 39 Taxes 23 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 25 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 Section 2.232.19. Mitigation of Obligations 52 26 Section 2.242.20. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III27

Amount and Terms of the Commitments. 30 3336 Section 2.1. General Description of Facilities 30 3336 Section 2.2. Revolving Loans 31 3336 Section 2.3. Procedure for Revolving Borrowings 31 3438 Section 2.4. Swingline Commitment 31 3438 Section 2.5. Existing Revolving Loans 3639 Section 2.6. Funding of Borrowings 33 3640 Section 2.62.7. Interest Elections 33 3740 Section 2.72.8. Optional Reduction and Termination of Commitments 34 3841 Section 2.82.9. Repayment of Loans 35 3842 Section 2.92.10. Evidence of Indebtedness 35 3842 Section 2.102.11. Optional Prepayments 35 3942 Section 2.112.12. Mandatory Prepayments 36 3943 Section 2.122.13. Interest on Loans 36 4044 Section 2.132.14. Fees 37 4145 Section 2.142.15. Computation of Interest and Fees 38 4246 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 4246 Section 2.17. Increased Costs 39 Illegality 4246 Section 2.18. Funding Indemnity 40 Increased Costs 4347 Section 2.19. Taxes 40 Funding Indemnity 4448 Section 2.20. Taxes 4448 Section 2.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 4751 Section 2.212.22. Letters of Credit 45 4953 Section 2.222.23. Increase of Commitments; Additional Lenders 49 5256 Section 2.232.24. Mitigation of Obligations 52 5558 Section 2.242.25. Replacement of Lenders 52 5559 Section 2.252.26. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III5560

Amount and Terms of the Commitments. 30 Section 2.1. General Description of Facilities 30 Section 2.2. Revolving Loans 31 30 Section 2.3. Procedure for Revolving Borrowings 31 30 Section 2.4. Swingline Commitment 31 Section 2.5. Extension Option 32 Section 2.6. Funding of Borrowings 33 Section 2.62.7. Interest Elections 33 Section 2.72.8. Optional Reduction and Termination of Commitments 34 Section 2.82.9. Repayment of Loans 35 34 Section 2.92.10. Evidence of Indebtedness 35 Section 2.102.11. Optional Prepayments 35 Section 2.112.12. Mandatory Prepayments 36 35 Section 2.122.13. Interest on Loans 36 Section 2.132.14. Fees 37 Section 2.142.15. Computation of Interest and Fees 38 37 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.162.17. Illegality 38 Section 2.172.18. Increased Costs 39 38 Section 2.182.19. Funding Indemnity 40 39 Section 2.192.20. Taxes 40 Section 2.202.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.212.22. Letters of Credit 45 44 Section 2.222.23. Increase of Commitments; Additional Lenders 49 48 Section 2.232.24. Mitigation of Obligations 52 50 Section 2.242.25. Replacement of Lenders 52 50 Section 2.252.26. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III51

Amount and Terms of the Commitments. 30 31 Section 2.1. General Description of Facilities 30 31 Section 2.2. Revolving Loans 31 Section 2.3. Procedure for Revolving Borrowings 31 Section 2.4. Swingline Commitment 31 32 Section 2.5. Term Loan Commitments 33 Section 2.6. Funding of Borrowings 33 Section 2.62.7. Interest Elections 33 34 Section 2.72.8. Optional Reduction and Termination of Commitments 34 35 Section 2.82.9. Repayment of Loans 35 Section 2.92.10. Evidence of Indebtedness 35 36 Section 2.102.11. Optional Prepayments 35 37 Section 2.112.12. Mandatory Prepayments 36 37 Section 2.122.13. Interest on Loans 36 38 Section 2.132.14. Fees 37 39 Section 2.142.15. Computation of Interest and Fees 38 40 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 40 Section 2.17. Increased Costs 39 Illegality 41 Section 2.18. Funding Indemnity 40 Increased Costs 41 Section 2.19. Taxes 40 Funding Indemnity 42 Section 2.20. Taxes 43 Section 2.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 45 Section 2.212.22. Letters of Credit 45 47 Section 2.222.23. Increase of Commitments; Additional Lenders 49 51 Section 2.232.24. Mitigation of Obligations 52 55 Section 2.242.25. Replacement of Lenders 52 55 Section 2.252.26. Defaulting Lenders 53 55 Section 2.262.27. All Obligations to Constitute Joint and Several Obligations 54 57 ARTICLE IIIIII CONDITIONS PRECEDENT TO LOANS AND LETTERS OF CREDIT 58 Section 3.1. Conditions to Effectiveness 58 Section 3.2. Conditions to Each Credit Event 61 Section 3.3. Delivery of Documents 61 ARTICLE IV

Amount and Terms of the Commitments. 30 17 Section 2.1. 2.1 General Description of Facilities 30 Facility 17 Section 2.2. 2.2 Revolving Loans 31 17 Section 2.3. 2.3 Procedure for Revolving Loan Borrowings 31 17 Section 2.4. Swingline 2.4 Term Loan Commitment 31 18 Section 2.5. 2.5 Procedure for Term Borrowing 18 Section 2.6 Funding of Borrowings 33 18 Section 2.6. 2.7 Interest Elections 33 18 Section 2.7. 2.8 Optional Reduction and Termination of Commitments 34 19 Section 2.8. 2.9 Repayment of Loans 35 19 Section 2.9. 2.10 Evidence of Indebtedness 35 19 Section 2.10. 2.11 Optional Prepayments 35 20 Section 2.11. Mandatory Prepayments 36 Section 2.12. 2.12 Interest on Loans 36 20 Section 2.13. 2.13 Fees 37 21 Section 2.14. 2.14 Computation of Interest and Fees 38 22 Section 2.15. 2.15 Inability to Determine Interest Rates 38 22 Section 2.16. 2.16 Illegality 38 23 Section 2.17. 2.17 Increased Costs 39 23 Section 2.18. 2.18 Funding Indemnity 40 24 Section 2.19. 2.19 Taxes 40 24 Section 2.20. 2.20 Payments Generally; Pro Rata Treatment; Sharing Generally 25 Section 2.21 Mitigation of Set-offs 43 Obligations 25 Section 2.21. 2.22 Letter of Credit Commitment 26 Section 2.23 Procedure for Issuance and Reimbursement of Letters of Credit 45 26 Section 2.22. Increase 2.24 Increased Cost 26 Section 2.25 Obligations Absolute 27 Section 2.26 Letter of Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE IIICredit Documents 27

Amount and Terms of the Commitments. 30 24 Section 2.1. General Description of Facilities 30 Facility 24 Section 2.2. Revolving Loans 31 24 Section 2.3. Procedure for Revolving Borrowings 31 24 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 25 Section 2.62.5. Interest Elections 33 25 Section 2.72.6. Optional Reduction and Termination of Commitments 34 26 Section 2.82.7. Repayment of Loans 35 26 Section 2.92.8. Evidence of Indebtedness 35 26 Section 2.9. Prepayments 27 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 28 Section 2.132.11. Fees 37 28 Section 2.142.12. Computation of Interest and Fees 38 29 Section 2.152.13. Inability to Determine Interest Rates 38 29 Section 2.14. Illegality 30 Section 2.15. Increased Costs 31 Section 2.16. Illegality 38 Funding Indemnity 32 Section 2.17. Increased Costs 39 Taxes 32 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 36 Section 2.19. Mitigation of Obligations 37 Section 2.20. Replacement of Lenders 37 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 38 Section 2.22. Defaulting Lenders 39 Section 2.23. Mitigation Extension of Obligations 52 Termination Date 40 ARTICLE III CONDITIONS PRECEDENT TO LOANS 42 Section 2.243.1. Replacement Conditions To Effectiveness 42 Section 3.2. Each Credit Event 43 Section 3.3. Delivery of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE IIIDocuments 44

Amount and Terms of the Commitments. 30 Section 2.1. General Description of Facilities Facility; Existing Obligations 30 Section 2.2. Revolving Loans 31 30 Section 2.3. Procedure for Revolving Borrowings 31 30 Section 2.4. Swingline Commitment Borrowing Base 31 Section 2.5. Funding of Borrowings 33 32 Section 2.6. Interest Elections 33 Section 2.7. Optional Reduction and Termination of Commitments 34 Section 2.8. Repayment of Loans 35 34 Section 2.9. Evidence of Indebtedness 35 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 35 Section 2.12. Interest on Loans 36 Section 2.13. Fees 37 Section 2.14. Computation of Interest and Fees 38 Section 2.15. Inability to Determine Interest Rates Rates; Benchmark Replacement Setting 38 Section 2.16. Illegality 38 40 Section 2.17. Increased Costs 39 40 Section 2.18. Funding Indemnity 40 41 Section 2.19. Taxes 40 41 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 44 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 50 Section 2.242.23. Replacement of Lenders 52 50 Section 2.252.24. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III51

Amount and Terms of the Commitments. 30 15 Section 2.1. General Description of Facilities 30 15 Section 2.2. Revolving Loans 31 15 Section 2.3. Procedure for Revolving Borrowings 31 16 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 16 Section 2.62.5. Interest Elections 33 17 Section 2.72.6. Optional Reduction and Termination of Commitments 34 18 Section 2.82.7. Repayment of Loans 35 18 Section 2.92.8. Evidence of Indebtedness 35 18 Section 2.102.9. Optional Prepayments 35 19 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 19 Section 2.132.11. Fees 37 20 Section 2.142.12. Computation of Interest and Fees 38 20 Section 2.152.13. Inability to Determine Interest Rates 38 21 Section 2.14. Illegality 21 Section 2.15. Increased Costs 21 Section 2.16. Illegality 38 Funding Indemnity 22 Section 2.17. Increased Costs 39 Taxes 23 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 24 Section 2.19. Mitigation of Obligations 26 Section 2.20. Replacement of Lenders 26 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 26 ARTICLE III CONDITIONS PRECEDENT TO LOANS 28 Section 3.1. Conditions To Effectiveness 28 Section 3.2. Each Credit Event 29 Section 3.3. Delivery of Documents 30 ARTICLE IV REPRESENTATIONS AND WARRANTIES 30 Section 4.1. Organization and Good Standing 30 Section 4.2. Due Authorization 30 Section 4.3. No Conflicts 30 Section 4.4. Consents 31 Section 4.5. Enforceable Obligations 31 Section 4.6. Financial Condition 31 Section 4.7. Intentionally Omitted 31 Section 4.8. No Default 31 Section 4.9. Intentionally Omitted 31 Section 4.10. Taxes 31 Section 4.11. Compliance with Law 32 Section 4.12. Material Agreements 32 Section 4.13. ERISA 32 Section 4.14. Use of Proceeds 33 Section 4.15. Government Regulation 33 Section 4.16. Disclosure 33 Section 4.17. Intentionally Omitted 34 Section 4.18. Insurance 34 Section 4.19. Franchises, Licenses, Etc. 34 Section 4.20. Secured Indebtedness 34 Section 4.21. Subsidiaries 34 ARTICLE V AFFIRMATIVE COVENANTS 34 Section 5.1. Information Covenants 34 Section 5.2. Debt to Capitalization Ratio 36 Section 5.3. Preservation of Existence, Franchises and Assets 37 Section 5.4. Books and Records 37 Section 5.5. Compliance with Law 37 Section 5.6. Payment of Taxes and Other Claims 37 Section 5.7. Insurance 37 Section 5.8. Use of Proceeds 37 Section 5.9. Audits/Inspections 38 ARTICLE VI NEGATIVE COVENANTS 38 Section 6.1. Nature of Business 38 Section 6.2. Consolidation and Merger 38 Section 6.3. Sale or Lease of Assets 38 Section 6.4. Arm’s-Length Transactions 38 Section 6.5. Fiscal Year; Organizational Documents 39 Section 6.6. Liens 39 ARTICLE VII EVENTS OF DEFAULT 40 Section 7.1. Events of Default 40 Section 7.2. Acceleration; Remedies 42 Section 7.3. Allocation of Payments After Event of Default 43 ARTICLE VIII THE ADMINISTRATIVE AGENT 44 Section 8.1. Appointment of Administrative Agent 44 Section 8.2. Nature of Duties of Administrative Agent 44 Section 8.3. Lack of Reliance on the Administrative Agent 45 Section 8.4. Certain Rights of the Administrative Agent 45 Section 8.5. Reliance by Administrative Agent 45 Section 8.6. The Administrative Agent in its Individual Capacity 45 Section 8.7. Successor Administrative Agent 46 Section 8.8. Authorization to Execute other Credit Documents 46 Section 8.9. Documentation Agent; Syndication Agent; Managing Agent 46 ARTICLE IX MISCELLANEOUS 47 Section 9.1. Notices 47 Section 9.2. Waiver; Amendments 49 Section 2.239.3. Mitigation Expenses; Indemnification 50 Section 9.4. Successors and Assigns 51 Section 9.5. Governing Law; Jurisdiction; Consent to Service of Obligations 52 Process 55 Section 2.249.6. Replacement WAIVER OF JURY TRIAL 55 Section 9.7. Right of Setoff 56 Section 9.8. Counterparts; Integration 56 Section 9.9. Survival 56 Section 9.10. Severability 57 Section 9.11. Confidentiality 57 Section 9.12. Interest Rate Limitation 57 Section 9.13. Waiver of Effect of Corporate Seal 58 Section 9.14. Patriot Act 58 Section 9.15. Location of Closing 58 Section 9.16. No Fiduciary Duty 58 Schedules Schedule I — Applicable Margins and Applicable Percentages Schedule II — Commitment Amounts Schedule 4.20 — Secured Indebtedness Schedule 4.21 — Subsidiaries Exhibits Exhibit A — Form of Assignment and Acceptance Exhibit 2.3 — Form of Notice of Borrowing Exhibit 2.5 — Form of Notice of Continuation/Conversion Exhibit 3.1(b)(iv) — Form of Secretary’s Certificate Exhibit 3.1(b)(vii) — Form of Officer’s Certificate Exhibit 5.1(c) — Form of Compliance Certificate REVOLVING CREDIT AGREEMENT THIS REVOLVING CREDIT AGREEMENT (this “Agreement”) is made and entered into as of October 29, 2008, by and among ATMOS ENERGY CORPORATION, a Texas and Virginia corporation (the “Borrower”), the several banks and other financial institutions and lenders from time to time party hereto (the “Lenders”), and SUNTRUST BANK, in its capacity as administrative agent for the Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III(the “Administrative Agent”).

Amount and Terms of the Commitments. 30 34 Section 2.1. General Description of Facilities 30 Facilities. 34 Section 2.2. Revolving Loans 31 Loans. 35 Section 2.3. Procedure for Revolving Borrowings 31 Borrowings. 35 Section 2.4. Swingline Commitment 31 Commitment. 35 Section 2.5. Funding of Borrowings 33 Term Loan Commitments. 37 Section 2.6. Interest Elections 33 Funding of Borrowings. 38 Section 2.7. Interest Elections. 38 Section 2.8. Optional Reduction and Termination of Commitments 34 Commitments. 39 Section 2.82.9. Repayment of Loans 35 Loans. 40 Section 2.92.10. Evidence of Indebtedness 35 Section 2.10Indebtedness. Optional Prepayments 35 42 Section 2.11. Mandatory Prepayments 36 Optional Prepayments. 42 Section 2.12. Interest on Loans 36 Mandatory Prepayments. 43 Section 2.13. Fees 37 Interest on Loans. 44 Section 2.14. Fees. 45 Section 2.15. Computation of Interest and Fees 38 Fees. 46 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.16Rates. Illegality 38 46 Section 2.17. Increased Costs 39 Illegality. 47 Section 2.18. Funding Indemnity 40 Increased Costs. 47 Section 2.19. Taxes 40 Funding Indemnity. 48 Section 2.20. Taxes. 49 Section 2.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 offs. 52 Section 2.212.22. Letters of Credit 45 Credit. 54 Section 2.222.23. Increase of Commitments; Additional Lenders 49 Lenders. 58 Section 2.232.24. Mitigation of Obligations 52 Obligations. 60 Section 2.242.25. Replacement of Lenders 52 Section 2.25Lenders. Defaulting Lenders 53 60 Section 2.26. All Obligations to Constitute Joint Reallocation and Several Obligations 54 ARTICLE IIICash Collateralization of Defaulting Lender Commitment. 61

Amount and Terms of the Commitments. 30 23 Section 2.1. General Description of Facilities 30 23 Section 2.2. Revolving Loans 31 24 Section 2.3. Procedure for Revolving Borrowings 31 24 Section 2.4. Swingline Commitment 31 24 Section 2.5. Procedure for Swingline Borrowing; Etc 24 Section 2.6. Funding of Borrowings 33 26 Section 2.62.7. Interest Elections 33 27 Section 2.72.8. Optional Reduction and Termination of Commitments 34 28 Section 2.82.9. Repayment of Loans 35 28 Section 2.92.10. Evidence of Indebtedness 35 Section 2.10. Optional Prepayments 35 28 Section 2.11. Mandatory Prepayments 36 29 Section 2.12. Interest on Loans 36 31 Section 2.13. Fees 37 31 Section 2.14. Computation of Interest and Fees 38 32 Section 2.15. Inability to Determine Interest Rates 38 33 Section 2.16. Illegality 38 33 Section 2.17. Increased Costs 39 34 Section 2.18. Funding Indemnity 40 35 Section 2.19. Taxes 40 35 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 38 Section 2.21. Mitigation of Obligations 40 Section 2.22. Replacement of Lenders 40 Section 2.23. Letters of Credit 41 Section 2.24. Defaulting Lenders 45 Section 2.222.25. Increase of Revolving Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 47 Section 2.26. All Obligations to Constitute Joint Effect of Amendment and Several Obligations 54 ARTICLE IIIRestatement 49 Section 2.27. Extension of Commitment Termination Date 50

Amount and Terms of the Commitments. 30 31 Section 2.1. General Description of Facilities 30 31 Section 2.2. Revolving Loans 31 Section 2.3. Procedure for Revolving Borrowings 31 Section 2.4. Swingline Commitment 31 [Reserved] 32 Section 2.5. Term Loan Commitments 32 Section 2.6. Funding of Borrowings 33 32 Section 2.62.7. Interest Elections 33 Section 2.72.8. Optional Reduction and Termination of Commitments 34 33 Section 2.82.9. Repayment of Loans 35 34 Section 2.92.10. Evidence of Indebtedness 35 Section 2.102.11. Optional Prepayments 35 Section 2.112.12. Mandatory Prepayments 36 Section 2.122.13. Interest on Loans 36 Section 2.13. Fees 37 Section 2.14. Fees 38 Section 2.15. Computation of Interest and Fees 38 39 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 39 Section 2.17. Increased Costs Illegality 39 Section 2.18. Funding Indemnity Increased Costs 40 Section 2.19. Taxes 40 Funding Indemnity 41 Section 2.20. Taxes 41 Section 2.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.212.22. Letters of Credit 45 Section 2.222.23. Increase of Commitments; Additional Lenders 49 Section 2.232.24. Mitigation of Obligations 52 Section 2.242.25. Replacement of Lenders 52 Section 2.252.26. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE IIIPotential Defaulting Lenders 53

Amount and Terms of the Commitments. 30 15 Section 2.1. General Description of Facilities 30 15 Section 2.2. Revolving Loans 31 15 Section 2.3. Procedure for Revolving Borrowings 31 15 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 16 Section 2.62.5. Interest Elections 33 16 Section 2.72.6. Optional Reduction and Termination of Commitments 34 17 Section 2.82.7. Repayment of Loans 35 18 Section 2.92.8. Evidence of Indebtedness 35 18 Section 2.102.9. Optional Prepayments 35 18 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 19 Section 2.132.11. Fees 37 19 Section 2.142.12. Computation of Interest and Fees 38 20 Section 2.152.13. Inability to Determine Interest Rates 38 20 Section 2.14. Illegality 20 Section 2.15. Increased Costs 21 Section 2.16. Illegality 38 Funding Indemnity 22 Section 2.17. Increased Costs 39 Taxes 22 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 23 Section 2.19. Mitigation of Obligations 24 Section 2.20. Replacement of Lenders 25 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 25 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.252.22. Defaulting Lenders 26 ARTICLE III CONDITIONS PRECEDENT TO LOANS 27 Section 3.1. Conditions To Effectiveness 27 Section 3.2. Each Credit Event 28 Section 3.3. Delivery of Documents 29 ARTICLE IV REPRESENTATIONS AND WARRANTIES 29 Section 4.1. Organization and Good Standing 29 Section 4.2. Due Authorization 29 Section 4.3. No Conflicts 29 Section 4.4. Consents 30 Section 4.5. Enforceable Obligations 30 Section 4.6. Financial Condition 30 Section 4.7. Intentionally Omitted 30 Section 4.8. No Default 30 Section 4.9. Intentionally Omitted 30 Section 4.10. Taxes 30 Section 4.11. Compliance with Law 31 Section 4.12. Material Agreements 31 Section 4.13. ERISA 31 Section 4.14. Use of Proceeds 32 Section 4.15. Government Regulation 32 Section 4.16. Disclosure 32 Section 4.17. Intentionally Omitted 33 Section 4.18. Insurance 33 Section 4.19. Franchises, Licenses, Etc 33 Section 4.20. Secured Indebtedness 33 Section 4.21. Subsidiaries 33 ARTICLE V AFFIRMATIVE COVENANTS 33 Section 5.1. Information Covenants 33 Section 5.2. Debt to Capitalization Ratio 35 Section 5.3. Preservation of Existence, Franchises and Assets 35 Section 5.4. Books and Records 35 Section 5.5. Compliance with Law 35 Section 5.6. Payment of Taxes and Other Claims 36 Section 5.7. Insurance 36 Section 5.8. Use of Proceeds 36 Section 5.9. Audits/Inspections 36 ARTICLE VI NEGATIVE COVENANTS 36 Section 6.1. Nature of Business 36 Section 6.2. Consolidation and Merger 37 Section 6.3. Sale or Lease of Assets 37 Section 6.4. Arm’s-Length Transactions 37 Section 6.5. Fiscal Year; Organizational Documents 37 Section 6.6. Liens 38 ARTICLE VII EVENTS OF DEFAULT 39 Section 7.1. Events of Default 39 Section 7.2. Acceleration; Remedies 41 Section 7.3. Allocation of Payments After Event of Default 41 ARTICLE VIII THE ADMINISTRATIVE AGENT 42 Section 8.1. Appointment of Administrative Agent 42 Section 8.2. Nature of Duties of Administrative Agent 42 Section 8.3. Lack of Reliance on the Administrative Agent 43 Section 8.4. Certain Rights of the Administrative Agent 43 Section 8.5. Reliance by Administrative Agent 43 Section 8.6. The Administrative Agent in its Individual Capacity 43 Section 8.7. Successor Administrative Agent 44 Section 8.8. Authorization to Execute other Credit Documents 44 Section 8.9. Co-Documentation Agents; Syndication Agent 44 ARTICLE IX MISCELLANEOUS 45 Section 9.1. Notices 45 Section 9.2. Waiver; Amendments 46 Section 9.3. Expenses; Indemnification 47 Section 9.4. Successors and Assigns 49 Section 9.5. Governing Law; Jurisdiction; Consent to Service of Process 52 Section 9.6. WAIVER OF JURY TRIAL 52 Section 9.7. Right of Setoff 53 Section 2.269.8. All Obligations Counterparts; Integration 53 Section 9.9. Survival 53 Section 9.10. Severability 53 Section 9.11. Confidentiality 53 Section 9.12. Interest Rate Limitation 54 Section 9.13. Waiver of Effect of Corporate Seal 54 Section 9.14. Patriot Act 54 Section 9.15. Location of Closing 54 Section 9.16. No Fiduciary Duty 55 Schedules Schedule I - Applicable Margins and Applicable Percentages Schedule II - Commitment Amounts Schedule 4.20 - Secured Indebtedness Schedule 4.21 - Subsidiaries Exhibits Exhibit A - Form of Assignment and Acceptance Exhibit 2.3 - Form of Notice of Borrowing Exhibit 2.5 - Form of Notice of Continuation/Conversion Exhibit 3.1(b)(iv) - Form of Secretary’s Certificate Exhibit 3.1(b)(vii) - Form of Officer’s Certificate Exhibit 5.1(c) - Form of Compliance Certificate REVOLVING CREDIT AGREEMENT THIS REVOLVING CREDIT AGREEMENT (this “Agreement”) is made and entered into as of October 15, 2010, by and among ATMOS ENERGY CORPORATION, a Texas and Virginia corporation (the “Borrower”), the several banks and other financial institutions and lenders from time to Constitute Joint time party hereto (the “Lenders”), and Several Obligations 54 ARTICLE IIISUNTRUST BANK, in its capacity as administrative agent for the Lenders (the “Administrative Agent”).

Amount and Terms of the Commitments. 30 21 Section 2.1. General Description of Facilities 30 21 Section 2.2. Revolving Loans 31 21 Section 2.3. Procedure for Revolving Borrowings 31 21 Section 2.4. Swingline Commitment 31 22 Section 2.5. Funding of Borrowings 33 23 Section 2.6. Interest Elections 33 24 Section 2.7. Optional Reduction and Termination of Commitments 34 25 Section 2.8. Repayment of Loans 35 25 Section 2.9. Evidence of Indebtedness 35 26 Section 2.10. Optional Prepayments 35 26 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 27 Section 2.12. Fees 28 Section 2.13. Fees 37 Section 2.14. Computation of Interest and Fees 38 29 Section 2.152.14. Inability to Determine Interest Rates 38 29 Section 2.15. Illegality 29 Section 2.16. Illegality 38 Increased Costs 30 Section 2.17. Increased Costs 39 Funding Indemnity 31 Section 2.18. Funding Indemnity 40 Taxes 31 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 33 Section 2.212.20. Letters of Credit 45 34 Section 2.222.21. Increase of Commitments; Additional Lenders 49 38 Section 2.232.22. Mitigation of Obligations 52 40 Section 2.242.23. Replacement Extensions of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE IIIRevolving Commitment Termination Date 40

Amount and Terms of the Commitments. 30 15 Section 2.1. General Description of Facilities 30 15 Section 2.2. Revolving Loans 31 15 Section 2.3. Procedure for Revolving Borrowings 31 16 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 16 Section 2.62.5. Interest Elections 33 17 Section 2.72.6. Optional Reduction and Termination of Commitments 34 18 Section 2.82.7. Repayment of Loans 35 18 Section 2.92.8. Evidence of Indebtedness 35 18 Section 2.102.9. Optional Prepayments 35 19 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 19 Section 2.132.11. Fees 37 20 Section 2.142.12. Computation of Interest and Fees 38 20 Section 2.152.13. Inability to Determine Interest Rates 38 20 Section 2.14. Illegality 21 Section 2.15. Increased Costs 21 Section 2.16. Illegality 38 Funding Indemnity 22 Section 2.17. Increased Costs 39 Taxes 23 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 24 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 Section 2.232.19. Mitigation of Obligations 52 25 Section 2.242.20. Replacement of Lenders 52 26 ARTICLE III CONDITIONS PRECEDENT TO LOANS 26 Section 2.253.1. Defaulting Lenders Conditions To Effectiveness 26 Section 3.2. Each Credit Event 28 Section 3.3. Delivery of Documents 28 ARTICLE IV REPRESENTATIONS AND WARRANTIES 29 Section 4.1. Organization and Good Standing 29 Section 4.2. Due Authorization 29 Section 4.3. No Conflicts 29 Section 4.4. Consents 29 Section 4.5. Enforceable Obligations 29 Section 4.6. Financial Condition 30 Section 4.7. Intentionally Omitted 30 Section 4.8. No Default 30 Section 4.9. Intentionally Omitted 30 Section 4.10. Taxes 30 Section 4.11. Compliance with Law 30 Section 4.12. Material Agreements 30 Section 4.13. ERISA 30 Section 4.14. Use of Proceeds 32 Section 4.15. Government Regulation 32 Section 4.16. Disclosure 32 Section 4.17. Intentionally Omitted 32 Section 4.18. Insurance 32 Section 4.19. Franchises, Licenses, Etc. 33 ARTICLE V AFFIRMATIVE COVENANTS 33 Section 5.1. Information Covenants 33 Section 5.2. Debt to Capitalization Ratio 35 Section 5.3. Preservation of Existence, Franchises and Assets 35 Section 5.4. Books and Records 35 Section 5.5. Compliance with Law 36 Section 5.6. Payment of Taxes and Other Claims 36 Section 5.7. Insurance 36 Section 5.8. Use of Proceeds 36 Section 5.9. Audits/Inspections 36 ARTICLE VI NEGATIVE COVENANTS 37 Section 6.1. Nature of Business 37 Section 6.2. Consolidation and Merger 37 Section 6.3. Sale or Lease of Assets 37 Section 6.4. Arm’s-Length Transactions 37 Section 6.5. Fiscal Year; Organizational Documents 37 Section 6.6. Liens 37 ARTICLE VII EVENTS OF DEFAULT 39 Section 7.1. Events of Default 39 Section 7.2. Acceleration; Remedies 41 Section 7.3. Allocation of Payments After Event of Default 42 ARTICLE VIII THE ADMINISTRATIVE AGENT 43 Section 8.1. Appointment of Administrative Agent 43 Section 8.2. Nature of Duties of Administrative Agent 43 Section 8.3. Lack of Reliance on the Administrative Agent 44 Section 8.4. Certain Rights of the Administrative Agent 44 Section 8.5. Reliance by Administrative Agent 44 Section 8.6. The Administrative Agent in its Individual Capacity 44 Section 8.7. Successor Administrative Agent 45 Section 8.8. Authorization to Execute other Credit Documents 45 Section 8.9. Documentation Agent; Syndication Agent 45 ARTICLE IX MISCELLANEOUS 46 Section 9.1. Notices 46 Section 9.2. Waiver; Amendments 48 Section 9.3. Expenses; Indemnification 49 Section 9.4. Successors and Assigns 50 Section 9.5. Governing Law; Jurisdiction; Consent to Service of Process 53 Section 2.269.6. All Obligations WAIVER OF JURY TRIAL 54 Section 9.7. Right of Setoff 54 Section 9.8. Counterparts; Integration 55 Section 9.9. Survival 55 Section 9.10. Severability 55 Section 9.11. Confidentiality 55 Section 9.12. Interest Rate Limitation 56 Section 9.13. Waiver of Effect of Corporate Seal 56 Section 9.14. Patriot Act 56 Schedules Schedule I - Applicable Margin and Applicable Percentage Schedule II - Commitment Amounts Schedule 4.20 - Secured Indebtedness Schedule 4.21 - Subsidiaries Schedule 9.1 - Borrower Website Address Exhibits Exhibit A - Form of Note Exhibit B - Form of Assignment and Acceptance Exhibit 2.3 - Form of Notice of Borrowing Exhibit 2.5 - Form of Notice of Continuation/Conversion Exhibit 3.1(b)(iv) - Form of Secretary’s Certificate Exhibit 3.1(b)(vii) - Form of Officer’s Certificate Exhibit 5.1(c) - Form of Compliance Certificate REVOLVING CREDIT AGREEMENT THIS REVOLVING CREDIT AGREEMENT (this “Agreement”) is made and entered into as of November 10, 2005, by and among ATMOS ENERGY CORPORATION, a Texas and Virginia corporation (the “Borrower”), the several banks and other financial institutions and lenders from time to Constitute Joint time party hereto (the “Lenders”), and Several Obligations 54 ARTICLE IIISUNTRUST BANK, in its capacity as administrative agent for the Lenders (the “Administrative Agent”).

Amount and Terms of the Commitments. 30 40 Section 2.1. General Description of Facilities 30 40 Section 2.2. Revolving Loans 31 40 Section 2.3. Procedure for Revolving Borrowings 31 40 Section 2.4. Swingline Commitment 31 40 Section 2.5. [Reserved] 42 Section 2.6. Funding of Borrowings 33 42 Section 2.62.7. Interest Elections 33 43 Section 2.72.8. Optional Reduction and Termination of Commitments 34 43 Section 2.82.9. Repayment of Loans 35 44 Section 2.92.10. Evidence of Indebtedness 35 44 Section 2.102.11. Optional Prepayments 35 45 Section 2.112.12. Mandatory Prepayments 36 45 Section 2.122.13. Interest on Loans 36 46 Section 2.132.14. Fees 37 46 Section 2.142.15. Computation of Interest and Fees 38 47 Section 2.152.16. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 48 Section 2.17. Increased Costs 39 Illegality 48 Section 2.18. Funding Indemnity 40 Increased Costs 48 Section 2.19. Taxes 40 Funding Indemnity 49 Section 2.20. Taxes 50 Section 2.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 53 Section 2.212.22. Letters of Credit 45 54 Section 2.222.23. Increase of Commitments; Additional Lenders 49 58 Section 2.232.24. Mitigation of Obligations 52 61 Section 2.242.25. Replacement of Lenders 52 61 Section 2.252.26. Defaulting Lenders 53 62 Section 2.262.27. All Obligations to Constitute Joint and Several Obligations 54 Request for Extended Facilities 65 Section 2.28. Refinancing Amendment 67 ARTICLE III

Amount and Terms of the Commitments. 30 16 Section 2.1. General Description of Facilities 30 Facility 16 Section 2.2. Revolving Loans 31 16 Section 2.3. Procedure for Revolving Borrowings 31 16 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 16 Section 2.62.5. Interest Elections 33 17 Section 2.72.6. Optional Reduction and Termination of Commitments 34 18 Section 2.82.7. Repayment of Loans 35 18 Section 2.92.8. Evidence of Indebtedness 35 18 Section 2.9. Prepayments 19 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 19 Section 2.132.11. Fees 37 20 Section 2.142.12. Computation of Interest and Fees 38 20 Section 2.152.13. Inability to Determine Interest Rates 38 21 Section 2.14. Illegality 21 Section 2.15. Increased Costs 22 Section 2.16. Illegality 38 Funding Indemnity 22 Section 2.17. Increased Costs 39 Taxes 23 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 24 Section 2.19. Mitigation of Obligations 25 Section 2.20. Replacement of Lenders 26 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 26 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.252.22. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III27

Amount and Terms of the Commitments. 30 28 Section 2.1. 2.1 General Description of Facilities 30 28 Section 2.2. 2.2 Revolving Loans 31 29 Section 2.3. 2.3 Procedure for Revolving Borrowings 29 Section 2.4 Swingline Commitment 29 Section 2.5 Procedure for Swingline Borrowing; Etc 29 Section 2.6 Term Loans 31 Section 2.4. Swingline Commitment 2.7 Intentionally Omitted 31 Section 2.5. 2.8 Funding of Borrowings 33 31 Section 2.6. 2.9 Interest Elections 33 32 Section 2.7. 2.10 Optional Reduction and Termination of Commitments 34 33 Section 2.8. 2.11 Repayment of Loans 35 33 Section 2.9. 2.12 Evidence of Indebtedness 35 34 Section 2.10. 2.13 Optional and Mandatory Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. 2.14 Interest on Loans 36 Section 2.13. 2.15 Fees 37 Section 2.14. 2.16 Computation of Interest and Fees 38 Section 2.15. 2.17 Inability to Determine Interest Rates 38 Section 2.16. 2.18 Illegality 38 39 Section 2.17. 2.19 Increased Costs 39 Section 2.18. 2.20 Funding Indemnity 40 Section 2.19. 2.21 Taxes 40 41 Section 2.20. 2.22 Payments Generally; Pro Rata Treatment; Sharing of Set-offs offs; Application of Funds 43 Section 2.21. 2.23 Mitigation of Obligations 45 Section 2.24 Letters of Credit 45 46 Section 2.22. 2.25 Increase of Commitments; Additional Lenders 49 50 Section 2.23. Mitigation of Obligations 52 Section 2.24. 2.26 Replacement of Lenders 52 a Lender 53 Section 2.25. 2.27 Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III54

Amount and Terms of the Commitments. 30 22 Section 2.1. General Description of Facilities 30 22 Section 2.2. Revolving Loans 31 22 Section 2.3. Procedure for Revolving Borrowings 31 22 Section 2.4. Swingline Commitment 31 Intentionally Deleted 22 Section 2.5. Intentionally Deleted 22 Section 2.6. Intentionally Deleted 22 Section 2.7. Intentionally Deleted 22 Section 2.8. Funding of Borrowings 33 22 Section 2.62.9. Interest Elections 33 23 Section 2.72.10. Optional Reduction and Termination of Commitments 34 Intentionally Deleted 24 Section 2.82.11. Repayment of Loans 35 24 Section 2.92.12. Evidence of Indebtedness 35 24 Section 2.102.13. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 25 Section 2.122.14. Interest on Loans 36 26 Section 2.132.15. Fees 37 27 Section 2.142.16. Computation of Interest and Fees 38 27 Section 2.152.17. Inability to Determine Interest Rates 38 27 Section 2.162.18. Illegality 38 27 Section 2.172.19. Increased Costs 39 28 Section 2.182.20. Funding Indemnity 40 29 Section 2.192.21. Taxes 40 29 Section 2.202.22. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 31 Section 2.23. Mitigation of Obligations 52 Intentionally Deleted 33 Section 2.24. Replacement of Lenders 52 Section 2.25Limitation on Certain Payment Obligations. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III33

Amount and Terms of the Commitments. 30 Section 2.1. General Description of Facilities 30 Section 2.2. Revolving Loans 31 30 Section 2.3. Procedure for Revolving Borrowings 31 30 Section 2.4. Swingline Commitment 31 Section 2.5. Procedure for Swingline Borrowing, Etc. 31 Section 2.6. Funding of Borrowings 33 32 Section 2.62.7. Interest Elections 33 Section 2.72.8. Optional Reduction and Mandatory Reductions and Termination of Commitments 34 Section 2.82.9. Repayment of Loans 35 Section 2.92.10. Evidence of Indebtedness 35 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 Section 2.13. Fees 37 Section 2.14. Computation of Interest and Fees 38 Section 2.15. Inability to Determine Interest Rates 38 Section 2.16. Illegality 38 39 Section 2.17. Increased Costs 39 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 41 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.21. Mitigation of Obligations; Replacement of Lenders 44 Section 2.22. Letters of Credit 45 44 Section 2.222.23. Increase of Revolving Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 48 Section 2.24. Replacement of Lenders 52 50 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III51

Amount and Terms of the Commitments. 30 15 Section 2.1. General Description of Facilities 30 15 Section 2.2. Revolving Loans 31 15 Section 2.3. Procedure for Revolving Borrowings 31 15 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 16 Section 2.62.5. Interest Elections 33 16 Section 2.72.6. Optional Reduction and Termination of Commitments 34 17 Section 2.82.7. Repayment of Loans 35 18 Section 2.92.8. Evidence of Indebtedness 35 18 Section 2.102.9. Optional Prepayments 35 18 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 19 Section 2.132.11. Fees 37 19 Section 2.142.12. Computation of Interest and Fees 38 20 Section 2.152.13. Inability to Determine Interest Rates 38 20 Section 2.14. Illegality 20 Section 2.15. Increased Costs 21 Section 2.16. Illegality 38 Funding Indemnity 22 Section 2.17. Increased Costs 39 Taxes 22 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 23 Section 2.19. Mitigation of Obligations 24 Section 2.20. Replacement of Lenders 25 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 25 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.252.22. Defaulting Lenders 26 ARTICLE III CONDITIONS PRECEDENT TO LOANS 27 Section 3.1. Conditions To Effectiveness 27 Section 3.2. Each Credit Event 28 Section 3.3. Delivery of Documents 29 ARTICLE IV REPRESENTATIONS AND WARRANTIES 29 Section 4.1. Organization and Good Standing 29 Section 4.2. Due Authorization 29 Section 4.3. No Conflicts 29 Section 4.4. Consents 30 Section 4.5. Enforceable Obligations 30 Section 4.6. Financial Condition 30 Section 4.7. Intentionally Omitted 30 Section 4.8. No Default 30 Section 4.9. Intentionally Omitted 30 Section 4.10. Taxes 30 Section 4.11. Compliance with Law 31 Section 4.12. Material Agreements 31 Section 4.13. ERISA 31 Section 4.14. Use of Proceeds 32 Section 4.15. Government Regulation 32 Section 4.16. Disclosure 32 Section 4.17. Intentionally Omitted 32 Section 4.18. Insurance 32 Section 4.19. Franchises, Licenses, Etc. 33 Section 4.20. Secured Indebtedness 33 Section 4.21. Subsidiaries 33 ARTICLE V AFFIRMATIVE COVENANTS 33 Section 5.1. Information Covenants 33 Section 5.2. Debt to Capitalization Ratio 35 Section 5.3. Preservation of Existence, Franchises and Assets 35 Section 5.4. Books and Records 35 Section 5.5. Compliance with Law 35 Section 5.6. Payment of Taxes and Other Claims 35 Section 5.7. Insurance 36 Section 5.8. Use of Proceeds 36 Section 5.9. Audits/Inspections 36 ARTICLE VI NEGATIVE COVENANTS 36 Section 6.1. Nature of Business 36 Section 6.2. Consolidation and Merger 37 Section 6.3. Sale or Lease of Assets 37 Section 6.4. Arm’s-Length Transactions 37 Section 6.5. Fiscal Year; Organizational Documents 37 Section 6.6. Liens 37 ARTICLE VII EVENTS OF DEFAULT 38 Section 7.1. Events of Default 38 Section 7.2. Acceleration; Remedies 40 Section 7.3. Allocation of Payments After Event of Default 41 ARTICLE VIII THE ADMINISTRATIVE AGENT 42 Section 8.1. Appointment of Administrative Agent 42 Section 8.2. Nature of Duties of Administrative Agent 42 Section 8.3. Lack of Reliance on the Administrative Agent 43 Section 8.4. Certain Rights of the Administrative Agent 43 Section 8.5. Reliance by Administrative Agent 43 Section 8.6. The Administrative Agent in its Individual Capacity 43 Section 8.7. Successor Administrative Agent 44 Section 8.8. Authorization to Execute other Credit Documents 44 Section 8.9. Co-Documentation Agents; Syndication Agent 44 ARTICLE IX MISCELLANEOUS 44 Section 9.1. Notices 44 Section 9.2. Waiver; Amendments 46 Section 9.3. Expenses; Indemnification 47 Section 9.4. Successors and Assigns 48 Section 9.5. Governing Law; Jurisdiction; Consent to Service of Process 51 Section 9.6. WAIVER OF JURY TRIAL 52 Section 9.7. Right of Setoff 52 Section 9.8. Counterparts; Integration 53 Section 2.269.9. All Obligations Survival 53 Section 9.10. Severability 53 Section 9.11. Confidentiality 53 Section 9.12. Interest Rate Limitation 54 Section 9.13. Waiver of Effect of Corporate Seal 54 Section 9.14. Patriot Act 54 Section 9.15. Location of Closing 54 Section 9.16. No Fiduciary Duty 54 Schedules Schedule I - Applicable Margins and Applicable Percentages Schedule II - Commitment Amounts Schedule 4.20 - Secured Indebtedness Schedule 4.21 - Subsidiaries Exhibits Exhibit A - Form of Assignment and Acceptance Exhibit 2.3 - Form of Notice of Borrowing Exhibit 2.5 - Form of Notice of Continuation/Conversion Exhibit 3.1(b)(iv) - Form of Secretary’s Certificate Exhibit 3.1(b)(vii) - Form of Officer’s Certificate Exhibit 5.1(c) - Form of Compliance Certificate REVOLVING CREDIT AGREEMENT THIS REVOLVING CREDIT AGREEMENT (this “Agreement”) is made and entered into as of October 22, 2009, by and among ATMOS ENERGY CORPORATION, a Texas and Virginia corporation (the “Borrower”), the several banks and other financial institutions and lenders from time to Constitute Joint time party hereto (the “Lenders”), and Several Obligations 54 ARTICLE IIISUNTRUST BANK, in its capacity as administrative agent for the Lenders (the “Administrative Agent”).

Amount and Terms of the Commitments. 30 Section 2.1. General Description Establishment of Facilities Revolving Credit Facility 30 Section 2.2. Revolving Loans 31 30 Section 2.3. Procedure for Revolving Borrowings 31 Establishment of Supplemental and Second Supplemental Credit Facility Facilities 30 Section 2.4. Swingline Commitment 31 Supplemental Loans and Second Supplemental Loans 30 Section 2.5. Procedure for Borrowings 30 Section 2.6. Funding of Borrowings 33 31 Section 2.62.7. Interest Elections 33 31 Section 2.72.8. Optional Reduction and Termination of Commitments 34 32 Section 2.82.9. Repayment of Loans 35 33 Section 2.92.10. Evidence of Indebtedness 35 33 Section 2.102.11. Optional Prepayments 35 33 Section 2.112.12. Mandatory Prepayments 36 34 Section 2.122.13. Interest on Loans 35 Section 2.14. Fees 36 Section 2.13. Fees 37 Section 2.142.15. Computation of Interest and Fees 38 36 Section 2.152.16. Inability to Determine Interest Rates 38 36 Section 2.162.17. Illegality 38 Section 2.172.18. Increased Costs 39 38 Section 2.182.19. Funding Indemnity 40 39 Section 2.192.20. Taxes 40 Section 2.202.21. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 Section 2.212.22. Letters Extension of Credit 45 Maturity Date 44 Section 2.222.23. Increase of Revolving Commitments; Additional Lenders 49 44 Section 2.232.24. Mitigation of Obligations 52 46 Section 2.242.25. Replacement of Lenders 52 46 Section 2.252.26. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 47 ARTICLE III

Amount and Terms of the Commitments. 30 16 Section 2.1. General Description of Facilities 30 16 Section 2.2. Revolving Loans 31 16 Section 2.3. Procedure for Revolving Borrowings 31 16 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 17 Section 2.62.5. Interest Elections 33 18 Section 2.72.6. Optional Reduction and Termination of Commitments 34 19 Section 2.82.7. Repayment of Loans 35 19 Section 2.92.8. Evidence of Indebtedness 35 19 Section 2.102.9. Optional Prepayments 35 19 Section 2.11. Mandatory Prepayments 36 Section 2.122.10. Interest on Loans 36 20 Section 2.132.11. Fees 37 20 Section 2.142.12. Computation of Interest and Fees 38 21 Section 2.152.13. Inability to Determine Interest Rates 38 21 Section 2.14. Illegality 22 Section 2.15. Increased Costs 22 Section 2.16. Illegality 38 Funding Indemnity 23 Section 2.17. Increased Costs 39 Taxes 24 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 25 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 Section 2.232.19. Mitigation of Obligations 52 26 Section 2.242.20. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE III27

Amount and Terms of the Commitments. 30 24 Section 2.1. General Description of Facilities 30 Facility 24 Section 2.2. Revolving Loans 31 24 Section 2.3. Procedure for Revolving Borrowings 31 24 Section 2.4. Swingline Commitment 31 Section 2.5. Funding of Borrowings 33 25 Section 2.62.5. Interest Elections 33 25 Section 2.72.6. Optional Reduction and Termination of Commitments 34 26 Section 2.82.7. Repayment of Loans 35 26 Section 2.92.8. Evidence of Indebtedness 35 27 Section 2.9. Prepayments 27 Section 2.10. Optional Prepayments 35 Section 2.11. Mandatory Prepayments 36 Section 2.12. Interest on Loans 36 28 Section 2.132.11. Fees 37 28 Section 2.142.12. Computation of Interest and Fees 38 29 Section 2.152.13. Inability to Determine Interest Rates 38 29 Section 2.14. Illegality 31 Section 2.15. Increased Costs 31 Section 2.16. Illegality 38 Funding Indemnity 32 Section 2.17. Increased Costs 39 Taxes 32 Section 2.18. Funding Indemnity 40 Section 2.19. Taxes 40 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 36 Section 2.19. Mitigation of Obligations 37 Section 2.20. Replacement of Lenders 37 Section 2.21. Letters of Credit 45 Section 2.22. Increase of Commitments; Additional Lenders 49 38 Section 2.22. Defaulting Lenders 39 Section 2.23. Mitigation Extension of Obligations 52 Termination Date 40 ARTICLE III CONDITIONS PRECEDENT TO LOANS 42 Section 2.243.1. Replacement Conditions To Effectiveness 42 Section 3.2. Each Credit Event 43 Section 3.3. Delivery of Lenders 52 Section 2.25. Defaulting Lenders 53 Section 2.26. All Obligations to Constitute Joint and Several Obligations 54 ARTICLE IIIDocuments 44

Amount and Terms of the Commitments. 30 22 Section 2.1. General Description of Facilities 30 22 Section 2.2. Revolving Loans 31 22 Section 2.3. Procedure for Revolving Borrowings 31 22 Section 2.4. Swingline Commitment 31 23 Section 2.5. Procedure for Swingline Borrowing; Etc. 23 Section 2.6. Funding of Borrowings 33 25 Section 2.62.7. Interest Elections 33 25 Section 2.72.8. Optional Reduction and Termination of Commitments 34 26 Section 2.82.9. Repayment of Loans 35 27 Section 2.92.10. Evidence of Indebtedness 35 Section 2.10. Optional Prepayments 35 27 Section 2.11. Mandatory Prepayments 36 28 Section 2.12. Interest on Loans 36 29 Section 2.13. Fees 37 30 Section 2.14. Computation of Interest and Fees 38 31 Section 2.15. Inability to Determine Interest Rates 38 31 Section 2.16. Illegality 38 32 Section 2.17. Increased Costs 39 32 Section 2.18. Funding Indemnity 40 34 Section 2.19. Taxes 40 34 Section 2.20. Payments Generally; Pro Rata Treatment; Sharing of Set-offs 43 37 Section 2.21. Mitigation of Obligations 39 Section 2.22. Replacement of Lenders 39 Section 2.23. Letters of Credit 45 40 Section 2.222.24. Defaulting Lenders 44 Section 2.25. Increase of Revolving Commitments; Additional Lenders 49 Section 2.23. Mitigation of Obligations 52 Section 2.24. Replacement of Lenders 52 Section 2.25. Defaulting Lenders 53 46 Section 2.26. All Obligations to Constitute Joint Effect of Amendment and Several Obligations 54 ARTICLE IIIRestatement 48