Item 1. Financial Statements

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Item 1. Financial Statements

ATMOS ENERGY CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

March 31, 2025September 30, 2024
(Unaudited)
(In thousands, except share data)
ASSETS
Property, plant and equipment$27,451,302$25,848,083
Less accumulated depreciation and amortization3,819,0793,643,716
Net property, plant and equipment23,632,22322,204,367
Current assets
Cash and cash equivalents543,504307,340
Restricted cash and cash equivalents1,6161,516
Cash and cash equivalents and restricted cash and cash equivalents545,120308,856
Accounts receivable, net660,634365,882
Gas stored underground97,254169,508
Other current assets288,275288,068
Total current assets1,591,2831,132,314
Securitized intangible asset, net (See Note 9)78,89282,844
Goodwill731,257731,257
Deferred charges and other assets946,7261,043,683
$26,980,381$25,194,465
CAPITALIZATION AND LIABILITIES
Shareholders’ equity
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: March 31, 2025 — 158,835,123 shares; September 30, 2024 — 155,258,845 shares$794$776
Additional paid-in capital7,880,4367,474,559
Accumulated other comprehensive income476,551465,715
Retained earnings4,780,1844,216,619
Shareholders’ equity13,137,96512,157,669
Long-term debt, net8,413,7257,783,646
Securitized long-term debt (See Note 9)72,60976,871
Total capitalization21,624,29920,018,186
Current liabilities
Accounts payable and accrued liabilities445,225445,397
Other current liabilities733,154750,620
Current maturities of long-term debt11,7121,651
Current maturities of securitized long-term debt (See Note 9)8,4188,207
Total current liabilities1,198,5091,205,875
Deferred income taxes2,793,1632,593,342
Regulatory excess deferred taxes155,169177,315
Regulatory cost of removal obligation527,287507,815
Deferred credits and other liabilities681,954691,932
$26,980,381$25,194,465

See accompanying notes to condensed consolidated financial statements.

ATMOS ENERGY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Three Months Ended March 31
20252024
(Unaudited) (In thousands, except per share data)
Operating revenues
Distribution segment$1,882,528$1,589,181
Pipeline and storage segment258,999223,487
Intersegment eliminations(191,025)(165,441)
Total operating revenues1,950,5021,647,227
Purchased gas cost
Distribution segment969,037788,643
Pipeline and storage segment968840
Intersegment eliminations(190,772)(165,188)
Total purchased gas cost779,233624,295
Operation and maintenance expense233,296199,899
Depreciation and amortization expense182,750165,087
Taxes, other than income126,284106,956
Operating income628,939550,990
Other non-operating income24,17216,687
Interest charges50,01455,442
Income before income taxes603,097512,235
Income tax expense117,52180,212
Net income$485,576$432,023
Basic net income per share$3.05$2.85
Diluted net income per share$3.03$2.85
Cash dividends per share$0.870$0.805
Basic weighted average shares outstanding159,177151,271
Diluted weighted average shares outstanding160,426151,297
Net income$485,576$432,023
Other comprehensive income (loss), net of tax
Net unrealized holding gains (losses) on available-for-sale securities, net of tax of $20 and $(15)73(50)
Cash flow hedges:
Amortization and unrealized gains (losses) on interest rate agreements, net of tax of $(1,622) and $7,850(5,660)27,158
Total other comprehensive income (loss)(5,587)27,108
Total comprehensive income$479,989$459,131

See accompanying notes to condensed consolidated financial statements.

ATMOS ENERGY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Six Months Ended March 31
20252024
(Unaudited) (In thousands, except per share data)
Operating revenues
Distribution segment$2,991,863$2,694,519
Pipeline and storage segment514,389434,656
Intersegment eliminations(379,751)(323,481)
Total operating revenues3,126,5012,805,694
Purchased gas cost
Distribution segment1,391,6071,285,305
Pipeline and storage segment910844
Intersegment eliminations(379,236)(322,985)
Total purchased gas cost1,013,281963,164
Operation and maintenance expense440,340366,244
Depreciation and amortization expense363,283329,695
Taxes, other than income221,178196,496
Operating income1,088,419950,095
Other non-operating income48,80634,573
Interest charges102,939107,317
Income before income taxes1,034,286877,351
Income tax expense196,852134,036
Net income$837,434$743,315
Basic net income per share$5.31$4.93
Diluted net income per share$5.26$4.93
Cash dividends per share$1.74$1.61
Basic weighted average shares outstanding157,739150,534
Diluted weighted average shares outstanding159,125150,547
Net income$837,434$743,315
Other comprehensive income (loss), net of tax
Net unrealized holding gains (losses) on available-for-sale securities, net of tax of $(22) and $71(65)246
Cash flow hedges:
Amortization and unrealized gains (losses) on interest rate agreements, net of tax of $1,870 and $(6,669)10,901(23,074)
Total other comprehensive income (loss)10,836(22,828)
Total comprehensive income$848,270$720,487

See accompanying notes to condensed consolidated financial statements.

ATMOS ENERGY CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Six Months Ended March 31
20252024
(Unaudited) (In thousands)
Cash Flows From Operating Activities
Net income$837,434$743,315
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense363,283329,695
Deferred income taxes170,965110,098
Other(32,691)(28,023)
Net assets / liabilities from risk management activities8451,683
Net change in other operating assets and liabilities(134,877)(164,895)
Net cash provided by operating activities1,204,959991,873
Cash Flows From Investing Activities
Capital expenditures(1,730,857)(1,415,526)
Debt and equity securities activities, net710(1,010)
Other, net12,6097,272
Net cash used in investing activities(1,717,538)(1,409,264)
Cash Flows From Financing Activities
Net decrease in short-term debt—(241,933)
Net proceeds from equity issuances379,490254,022
Issuance of common stock through stock purchase and employee retirement plans7,8887,771
Proceeds from issuance of long-term debt645,372898,275
Repayment of securitized long-term debt by AEK(4,051)(5,738)
Cash dividends paid(273,869)(241,565)
Debt issuance costs(5,987)(8,920)
Net cash provided by financing activities748,843661,912
Net increase in cash and cash equivalents and restricted cash and cash equivalents236,264244,521
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period308,85619,248
Cash and cash equivalents and restricted cash and cash equivalents at end of period$545,120$263,769

See accompanying notes to condensed consolidated financial statements.

ATMOS ENERGY CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

March 31, 2025

1. Nature of Business

Atmos Energy Corporation (“Atmos Energy” or the “Company”) and its subsidiaries are engaged in the regulated natural gas distribution and pipeline and storage businesses. Our distribution business is subject to federal and state regulation and/or regulation by local authorities in each of the states in which our regulated divisions and subsidiaries operate.

Our distribution business delivers natural gas through sales and transportation arrangements to over 3.3 million residential, commercial, public authority, and industrial customers through our six regulated distribution divisions, which at March 31, 2025, covered service areas located in eight states.

Our pipeline and storage business, which is also subject to federal and state regulations, includes the transportation of natural gas to our Texas and Louisiana distribution systems and the management of our underground storage facilities used to support our distribution business in various states.

2. Summary of Significant Accounting Policies

Basis of Presentation

These consolidated interim-period financial statements have been prepared in accordance with accounting principles generally accepted in the United States on the same basis as those used for the Company’s audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. In the opinion of management, all material adjustments (consisting of normal recurring accruals) necessary for a fair presentation have been made to the unaudited consolidated interim-period financial statements. These consolidated interim-period financial statements are condensed as permitted by the instructions to Form 10-Q and should be read in conjunction with the audited consolidated financial statements of Atmos Energy Corporation included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. Because of seasonal and other factors, the results of operations for the six-month period ended March 31, 2025 are not indicative of our results of operations for the full 2025 fiscal year, which ends September 30, 2025.

Significant accounting policies

Our accounting policies are described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024.

During the second quarter of fiscal 2025, we completed our annual goodwill impairment assessment using a qualitative assessment, as permitted under U.S. GAAP. We test for goodwill at the reporting unit level on an annual basis and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit. Based on the assessment performed, we determined that our goodwill was not impaired.

No events have occurred subsequent to the balance sheet date that would require recognition or disclosure in the condensed consolidated financial statements.

Recently issued accounting pronouncements

In November 2023, the Financial Accounting Standards Board (FASB) issued guidance which provides updates to qualitative and quantitative reportable segment disclosure requirements, including enhanced disclosures about significant segment expenses and increased interim disclosure requirements, among others. The amendment is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted, and the amendments should be applied retrospectively. This amendment will be effective for our Form 10-K for fiscal 2025 and our Form 10-Q for the first quarter of fiscal 2026. We are currently evaluating the impact this may have on our financial statement disclosures.

In December 2023, the FASB issued guidance which provides qualitative and quantitative updates to the rate reconciliation and income taxes paid disclosures, among others, in order to enhance the transparency of income tax disclosures, including consistent categories and greater disaggregation of information in the rate reconciliation and disaggregation by jurisdiction of income taxes paid. The amendment is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments should be applied prospectively; however, retrospective application is also permitted. This amendment will be effective for our Form 10-K for fiscal 2026. We are currently evaluating the impact this amendment may have on our financial statement disclosures.

In November 2024, the FASB issued guidance that will require more detailed information about the types of expenses in commonly presented expense captions. The amendment is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. This amendment will be effective for our Form 10-K for fiscal 2028 and our Form 10-Q for the first quarter of fiscal 2029. We are currently evaluating the impact this may have on our financial statement disclosures.

3. Regulation

Accounting principles generally accepted in the United States require cost-based, rate-regulated entities that meet certain criteria to reflect the authorized recovery of costs due to regulatory decisions in their financial statements. As a result, certain costs are permitted to be capitalized rather than expensed because they can be recovered through rates. We record certain costs as regulatory assets when future recovery through customer rates is considered probable. Regulatory liabilities are recorded when it is probable that revenues will be reduced for amounts that will be credited to customers through the ratemaking process. Substantially all of our regulatory assets are recorded as a component of other current assets and deferred charges and other assets and our regulatory liabilities are recorded as a component of other current liabilities and deferred credits and other liabilities. Deferred gas costs are recorded either in other current assets or liabilities.

Regulatory assets and liabilities as of March 31, 2025 and September 30, 2024 included the following:

March 31, 2025September 30, 2024
(In thousands)
Regulatory assets:
Pension and postretirement benefit costs$4,326$11,243
Infrastructure mechanisms (1)239,997246,734
Winter Storm Uri incremental costs6,81210,373
Deferred gas costs3,830159,762
Regulatory excess deferred taxes (2)50,52651,380
Recoverable loss on reacquired debt2,9873,070
Deferred pipeline record collection costs39,89941,742
APT annual System Safety and Integrity Rider (3)34,14238,632
Other16,27016,454
$398,789$579,390
Regulatory liabilities:
Regulatory excess deferred taxes (2)$229,096$257,001
Regulatory cost of removal obligation625,899607,032
Deferred gas costs54,7949,142
APT annual adjustment mechanism78,12673,119
Pension and postretirement benefit costs236,382247,250
Other51,00634,338
$1,275,303$1,227,882

(1)Infrastructure mechanisms in Texas, Louisiana, and Tennessee allow for the deferral of all eligible expenses associated with capital expenditures incurred pursuant to these rules, including the recording of interest on deferred expenses until the next rate proceeding (rate case or annual rate filing), at which time investment and costs would be recoverable through base rates.

(2)Regulatory excess deferred taxes represent changes in our net deferred tax liability related to our cost of service ratemaking due to the enactment of Tax Cuts and Jobs Act of 2017 (the "TCJA"), a Kansas legislative change enacted in fiscal 2020, and a Louisiana legislative change enacted in fiscal 2025. See Note 12 to the condensed consolidated financial statements for further information.

(3)In APT's general rate case settlement in December 2023, the RRC approved a new annual compliance filing that allows APT to recover certain system safety and integrity costs incurred each year. Costs above a specified benchmark are deferred onto the balance sheet as incurred. Once the filing is approved by the RRC, the revenue and expense are recognized over 12 months resulting in no impact to operating income.

We deferred $32.4 million in carrying costs incurred after September 1, 2022 associated with interim financing for gas costs incurred in February 2021 during Winter Storm Uri. During fiscal 2024, we recovered $22.0 million of this amount. During the first six months of fiscal 2025, we have recovered $3.6 million of this amount. Of the remaining $6.8 million,

$0.4 million has been recorded as a current asset in other current assets as of March 31, 2025 and $6.4 million has been recorded as a long-term asset in deferred charges and other assets as of March 31, 2025 as we anticipate recovering this amount in future regulatory proceedings.

4. Segment Information

We manage and review our consolidated operations through the following reportable segments:

  • The distribution segment is comprised of our regulated natural gas distribution and related sales operations in eight states.

  • The pipeline and storage segment is comprised primarily of the regulated pipeline and storage operations of our Atmos Pipeline-Texas division and our natural gas transmission operations in Louisiana.

The accounting policies of the segments are the same as those described in the summary of significant accounting policies found in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024.

Income statements and capital expenditures for the three and six months ended March 31, 2025 and 2024 by segment are presented in the following tables:

Three Months Ended March 31, 2025
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Operating revenues from external parties$1,881,742$68,760$—$1,950,502
Intersegment revenues786190,239(191,025)—
Total operating revenues1,882,528258,999(191,025)1,950,502
Purchased gas cost969,037968(190,772)779,233
Operation and maintenance expense181,88751,662(253)233,296
Depreciation and amortization expense134,54648,204—182,750
Taxes, other than income113,34012,944—126,284
Operating income483,718145,221—628,939
Other non-operating income13,44410,728—24,172
Interest charges30,08719,927—50,014
Income before income taxes467,075136,022—603,097
Income tax expense86,43231,089—117,521
Net income$380,643$104,933$—$485,576
Capital expenditures$594,853$244,813$—$839,666
Three Months Ended March 31, 2024
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Operating revenues from external parties$1,588,394$58,833$—$1,647,227
Intersegment revenues787164,654(165,441)—
Total operating revenues1,589,181223,487(165,441)1,647,227
Purchased gas cost788,643840(165,188)624,295
Operation and maintenance expense154,95645,196(253)199,899
Depreciation and amortization expense121,38443,703—165,087
Taxes, other than income98,0088,948—106,956
Operating income426,190124,800—550,990
Other non-operating income9,3597,328—16,687
Interest charges36,78418,658—55,442
Income before income taxes398,765113,470—512,235
Income tax expense56,07324,139—80,212
Net income$342,692$89,331$—$432,023
Capital expenditures$532,997$112,879$—$645,876
Six Months Ended March 31, 2025
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Operating revenues from external parties$2,990,311$136,190$—$3,126,501
Intersegment revenues1,552378,199(379,751)—
Total operating revenues2,991,863514,389(379,751)3,126,501
Purchased gas cost1,391,607910(379,236)1,013,281
Operation and maintenance expense336,401104,454(515)440,340
Depreciation and amortization expense268,17395,110—363,283
Taxes, other than income195,91625,262—221,178
Operating income799,766288,653—1,088,419
Other non-operating income23,52825,278—48,806
Interest charges64,33638,603—102,939
Income before income taxes758,958275,328—1,034,286
Income tax expense138,10258,750—196,852
Net income$620,856$216,578$—$837,434
Capital expenditures$1,220,502$510,355$—$1,730,857
Six Months Ended March 31, 2024
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Operating revenues from external parties$2,693,013$112,681$—$2,805,694
Intersegment revenues1,506321,975(323,481)—
Total operating revenues2,694,519434,656(323,481)2,805,694
Purchased gas cost1,285,305844(322,985)963,164
Operation and maintenance expense282,57184,169(496)366,244
Depreciation and amortization expense241,06988,626—329,695
Taxes, other than income178,90317,593—196,496
Operating income706,671243,424—950,095
Other non-operating income15,19819,375—34,573
Interest charges71,36535,952—107,317
Income before income taxes650,504226,847—877,351
Income tax expense86,37547,661—134,036
Net income$564,129$179,186$—$743,315
Capital expenditures$1,072,155$343,371$—$1,415,526

Balance sheet information at March 31, 2025 and September 30, 2024 by segment is presented in the following tables:

March 31, 2025
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Net property, plant and equipment$17,422,364$6,209,859$—$23,632,223
Total assets$26,109,156$6,541,506$(5,670,281)$26,980,381
September 30, 2024
DistributionPipeline and StorageEliminationsConsolidated
(In thousands)
Net property, plant and equipment$16,372,659$5,831,708$—$22,204,367
Total assets$24,328,877$6,181,558$(5,315,970)$25,194,465

5. Earnings Per Share

We use the two-class method of computing earnings per share because we have participating securities in the form of non-vested restricted stock units with a nonforfeitable right to dividend equivalents, for which vesting is predicated solely on the passage of time. The calculation of earnings per share using the two-class method excludes income attributable to these participating securities from the numerator and excludes the dilutive impact of those shares from the denominator. Basic weighted average shares outstanding is calculated based upon the weighted average number of common shares outstanding during the periods presented. Also, this calculation includes fully vested stock awards that have not yet been issued as common stock. Additionally, the weighted average shares outstanding for diluted EPS includes the incremental effects of the forward sale agreements, discussed in Note 8 to the condensed consolidated financial statements, when the impact is dilutive.

Basic and diluted earnings per share for the three and six months ended March 31, 2025 and 2024 are calculated as follows:

Three Months Ended March 31Six Months Ended March 31
2025202420252024
(In thousands, except per share amounts)
Basic Earnings Per Share
Net income$485,576$432,023$837,434$743,315
Less: Income allocated to participating securities245255436442
Income available to common shareholders$485,331$431,768$836,998$742,873
Basic weighted average shares outstanding159,177151,271157,739150,534
Net income per share — Basic$3.05$2.85$5.31$4.93
Diluted Earnings Per Share
Income available to common shareholders$485,331$431,768$836,998$742,873
Effect of dilutive shares————
Income available to common shareholders$485,331$431,768$836,998$742,873
Basic weighted average shares outstanding159,177151,271157,739150,534
Dilutive shares1,249261,38613
Diluted weighted average shares outstanding160,426151,297159,125150,547
Net income per share — Diluted$3.03$2.85$5.26$4.93

6. Revenue and Accounts Receivable

Revenue

Our revenue recognition policy is fully described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. The following tables disaggregate our revenue from contracts with customers by customer type and segment and provide a reconciliation to total operating revenues, including intersegment revenues, for the three and six months ended March 31, 2025 and 2024.

Three Months Ended March 31, 2025Three Months Ended March 31, 2024
DistributionPipeline and StorageDistributionPipeline and Storage
(In thousands)
Gas sales revenues:
Residential$1,308,691$—$1,065,296$—
Commercial480,108—404,701—
Industrial38,885—30,419—
Public authority and other23,921—21,120—
Total gas sales revenues1,851,605—1,521,536—
Transportation revenues43,352266,51437,607223,159
Miscellaneous revenues4,2224,2593,7242,162
Revenues from contracts with customers1,899,179270,7731,562,867225,321
Alternative revenue program revenues(20,117)(11,774)22,315(1,834)
Other revenues3,466—3,999—
Total operating revenues$1,882,528$258,999$1,589,181$223,487
Six Months Ended March 31, 2025Six Months Ended March 31, 2024
DistributionPipeline and StorageDistributionPipeline and Storage
(In thousands)
Gas sales revenues:
Residential$2,001,741$—$1,792,978$—
Commercial746,162—681,954—
Industrial65,206—58,650—
Public authority and other36,802—35,704—
Total gas sales revenues2,849,911—2,569,286—
Transportation revenues80,079532,54371,374438,464
Miscellaneous revenues7,2446,9236,3675,204
Revenues from contracts with customers2,937,234539,4662,647,027443,668
Alternative revenue program revenues47,219(25,077)39,716(9,012)
Other revenues7,410—7,776—
Total operating revenues$2,991,863$514,389$2,694,519$434,656

We have alternative revenue programs in each of our segments. In our distribution segment, we have weather-normalization adjustment mechanisms that serve to mitigate the effects of weather on our revenue. In our pipeline and storage segment, APT has a regulatory mechanism that requires that we share with its tariffed customers 75% of the difference between the total non-tariffed revenues earned during a test period and a revenue benchmark established by the RRC. Other revenues includes AEK revenues (see Note 9 to the condensed consolidated financial statements) and other miscellaneous revenues.

Accounts receivable and allowance for uncollectible accounts

Accounts receivable arise from natural gas sales to residential, commercial, industrial, public authority, and other customers. Our accounts receivable balance includes unbilled amounts which represent a customer’s consumption of gas from the date of the last cycle billing through the last day of the month. Our policy related to the accounting for our accounts receivable and allowance for uncollectible accounts is fully described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. During the six months ended March 31, 2025, there were no material changes to this policy. Rollforwards of our allowance for uncollectible accounts for the three and six months ended March 31, 2025 and 2024 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 89 percent of our customers as we have the ability to collect these gas costs through our gas cost recovery mechanisms in most of our jurisdictions.

In December 2023, the Mississippi Public Service Commission approved the recovery of uncollectible accounts through our purchased gas cost mechanism over a two-year period rather than through our annual filing mechanism over a one-year period. As a result of this decision, we recorded a $13.9 million reduction to bad debt expense during the first quarter of fiscal 2024. Of this amount, $9.7 million represents future recovery of customer receivables previously written off since April 2022 but not yet recovered through our rates. This amount increased our deferred gas cost regulatory asset. The remaining $4.2 million reduction represents a reversal of our allowance for uncollectible accounts for customer balances that have not yet been written off.

Three Months Ended March 31, 2025
(In thousands)
Beginning balance, December 31, 2024$39,166
Current period provisions14,391
Write-offs charged against allowance(4,761)
Recoveries of amounts previously written off545
Ending balance, March 31, 2025$49,341
Three Months Ended March 31, 2024
(In thousands)
Beginning balance, December 31, 2023$35,406
Current period provisions12,797
Write-offs charged against allowance(5,859)
Recoveries of amounts previously written off361
Ending balance, March 31, 2024$42,705
Six Months Ended March 31, 2025
(In thousands)
Beginning balance, September 30, 2024$37,056
Current period provisions23,015
Write-offs charged against allowance(12,209)
Recoveries of amounts previously written off1,479
Ending balance, March 31, 2025$49,341
Six Months Ended March 31, 2024
(In thousands)
Beginning balance, September 30, 2023$40,840
Current period provisions19,547
Write-offs charged against allowance(14,616)
Recoveries of amounts previously written off1,126
Mississippi recovery of uncollectible accounts(4,192)
Ending balance, March 31, 2024$42,705

7. Debt

The nature and terms of our debt instruments and credit facilities are described in detail in Note 8 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. Other than as described below, there were no material changes in the terms of our debt instruments during the six months ended March 31, 2025.

Long-term debt at March 31, 2025 and September 30, 2024 consisted of the following:

March 31, 2025September 30, 2024
(In thousands)
Unsecured 3.00% Senior Notes, due June 2027$500,000$500,000
Unsecured 2.625% Senior Notes, due September 2029500,000500,000
Unsecured 1.50% Senior Notes, due January 2031600,000600,000
Unsecured 5.45% Senior Notes, due October 2032300,000300,000
Unsecured 5.90% Senior Notes, due November 2033725,000725,000
Unsecured 5.95% Senior Notes, due October 2034200,000200,000
Unsecured 5.50% Senior Notes, due June 2041400,000400,000
Unsecured 4.15% Senior Notes, due January 2043500,000500,000
Unsecured 4.125% Senior Notes, due October 2044750,000750,000
Unsecured 4.30% Senior Notes, due October 2048600,000600,000
Unsecured 4.125% Senior Notes, due March 2049450,000450,000
Unsecured 3.375% Senior Notes, due September 2049500,000500,000
Unsecured 2.85% Senior Notes, due February 2052600,000600,000
Unsecured 5.75% Senior Notes, due October 2052500,000500,000
Unsecured 6.20% Senior Notes, due November 2053500,000500,000
Unsecured 5.00% Senior Notes, due December 2054650,000—
Medium-term note Series A, 1995-1, 6.67%, due December 202510,00010,000
Unsecured 6.75% Debentures, due July 2028150,000150,000
Finance lease obligations48,07548,890
Total long-term debt8,483,0757,833,890
Less:
Original issue premium on unsecured senior notes and debentures(3,825)(9,071)
Debt issuance cost61,46357,664
Current maturities of long-term debt11,7121,651
Total long-term debt, net$8,413,725$7,783,646

On October 1, 2024, we completed a public offering of $650 million of 5.00% senior notes due December 2054, with an effective interest rate of 3.90%, after giving effect to the offering costs and settlement of our interest rate swaps. The net proceeds from the offering, after the underwriting discount and offering expenses, of $639.4 million were used for general corporate purposes.

Short-term debt

We utilize short-term debt to provide cost-effective, short-term financing until it can be replaced with a balance of long-term debt and equity financing that achieves the Company’s desired capital structure. Our short-term borrowing requirements are driven primarily by construction work in progress and the seasonal nature of the natural gas business.

Our short-term borrowing requirements are satisfied through a combination of a $1.5 billion commercial paper program and four committed revolving credit facilities with third-party lenders that provide $3.1 billion of total working capital funding.

Our commercial paper program is supported by a five-year unsecured $1.5 billion credit facility. On March 31, 2025, we elected to extend the maturity date from March 28, 2029 to March 28, 2030. This facility bears interest at a base rate or at a Term SOFR-based rate for the applicable interest period, plus a margin ranging from zero percent to 0.25 percent for base rate advances or a margin ranging from 0.75 percent to 1.25 percent for Term SOFR-based advances, based on the Company’s credit ratings. Additionally, the facility contains a $250 million accordion feature, which provides the opportunity to increase the total committed loan to $1.75 billion. At March 31, 2025 and September 30, 2024, there were no amounts outstanding under our commercial paper program.

We also have a $1.5 billion three-year unsecured revolving credit facility that is used to provide additional working capital funding. On March 31, 2025, we elected to extend the maturity date from March 28, 2027 to March 28, 2028. This facility bears interest at a base rate or at a Term SOFR-based rate for the applicable interest period, plus a margin ranging from zero percent to 0.25 percent for base rate advances or a margin ranging from 0.75 percent to 1.25 percent for Term SOFR-based advances, based on the Company's credit ratings. Additionally, the facility contains a $250 million accordion feature, which provides the opportunity to increase the total committed loan to $1.75 billion. At March 31, 2025 and September 30, 2024, there were no borrowings outstanding under this facility.

Additionally, we have a $50 million 364-day unsecured facility, which was renewed April 1, 2025 and is used to provide working capital funding. There were no borrowings outstanding under this facility as of March 31, 2025 and September 30, 2024.

Finally, we have a $50 million 364-day unsecured revolving credit facility, which was renewed March 31, 2025 and is used to issue letters of credit and to provide working capital funding. At March 31, 2025, there were no borrowings outstanding under this facility; however, outstanding letters of credit reduced the total amount available to us to $44.4 million.

Debt covenants

The availability of funds under these credit facilities is subject to conditions specified in the respective credit agreements, all of which we currently satisfy. These conditions include our compliance with financial covenants and the continued accuracy of representations and warranties contained in these agreements. We are required by the financial covenants in each of these facilities to maintain, at the end of each fiscal quarter, a ratio of total-debt-to-total-capitalization of no greater than 70 percent. At March 31, 2025, our total-debt-to-total-capitalization ratio, as defined in the agreements, was 40 percent. In addition, both the interest margin and the fee that we pay on unused amounts under certain of these facilities are subject to adjustment depending upon our credit ratings.

These credit facilities and our public indentures contain usual and customary covenants for our business, including covenants substantially limiting liens, substantial asset sales, and mergers. Additionally, our public debt indentures relating to our senior notes and debentures, as well as certain of our revolving credit agreements, each contain a default provision that is triggered if outstanding indebtedness arising out of any other credit agreements in amounts ranging from in excess of $15 million to in excess of $100 million becomes due by acceleration or if not paid at maturity. We were in compliance with all of our debt covenants as of March 31, 2025. If we were unable to comply with our debt covenants, we would likely be required to repay our outstanding balances on demand, provide additional collateral or take other corrective actions.

8. Shareholders' Equity

The following tables present a reconciliation of changes in stockholders' equity for the three and six months ended March 31, 2025 and 2024.

Common stockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTotal
Number of SharesStated Value
(In thousands, except share and per share data)
Balance, September 30, 2024155,258,845$776$7,474,559$465,715$4,216,619$12,157,669
Net income————351,858351,858
Other comprehensive income———16,423—16,423
Cash dividends ($0.87 per share)————(135,453)(135,453)
Common stock issued:
Public and other stock offerings3,329,35817383,520——383,537
Stock-based compensation plans137,86216,446——6,447
Balance, December 31, 2024158,726,0657947,864,525482,1384,433,02412,780,481
Net income————485,576485,576
Other comprehensive loss———(5,587)—(5,587)
Cash dividends ($0.87 per share)————(138,416)(138,416)
Common stock issued:
Public and other stock offerings26,367—3,841——3,841
Stock-based compensation plans82,691—12,070——12,070
Balance, March 31, 2025158,835,123$794$7,880,436$476,551$4,780,184$13,137,965
Common stockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTotal
Number of SharesStated Value
(In thousands, except share and per share data)
Balance, September 30, 2023148,492,783$742$6,684,120$518,528$3,666,674$10,870,064
Net income————311,292311,292
Other comprehensive loss———(49,936)—(49,936)
Cash dividends ($0.805 per share)————(119,898)(119,898)
Common stock issued:
Public and other stock offerings2,177,86411257,757——257,768
Stock-based compensation plans163,75013,918——3,919
Balance, December 31, 2023150,834,3977546,945,795468,5923,858,06811,273,209
Net income————432,023432,023
Other comprehensive income———27,108—27,108
Cash dividends ($0.805 per share)————(121,667)(121,667)
Common stock issued:
Public and other stock offerings34,687—4,025——4,025
Stock-based compensation plans5,468—3,941——3,941
Balance, March 31, 2024150,874,552$754$6,953,761$495,700$4,168,424$11,618,639

Shelf Registration, At-the-Market Equity Sales Program and Equity Issuances

On December 3, 2024, we filed a shelf registration statement with the Securities and Exchange Commission (SEC) that allows us to issue up to $8.0 billion in common stock and/or debt securities, which expires December 3, 2027. At March 31, 2025, $6.3 billion of securities were available for issuance under this shelf registration statement.

On December 3, 2024, we filed a prospectus supplement under the shelf registration statement relating to an at-the-market (ATM) equity sales program under which we may issue and sell shares of our common stock up to an aggregate offering price of $1.7 billion through December 3, 2027 (including shares of common stock that may be sold pursuant to forward sale agreements entered into concurrently with the ATM equity sales program). This ATM equity sales program replaced our previous ATM equity sales program, filed on May 8, 2024.

During the six months ended March 31, 2025, we executed forward sales under our ATM equity sales program with various forward sellers who borrowed and sold 4,609,043 shares of our common stock at an aggregate price of $658.2 million. During the six months ended March 31, 2025, we also settled forward sale agreements with respect to 3,300,904 shares that had been borrowed and sold by various forward sellers under the ATM program for net proceeds of $379.5 million. As of March 31, 2025, $1.0 billion of equity was available for issuance under our existing ATM program. Additionally, we had $1.7 billion in available proceeds from outstanding forward sale agreements, as detailed below.

MaturityShares AvailableNet Proceeds Available (In thousands)Forward Price
June 30, 2025630,514$73,406$116.42
September 30, 2025815,65596,313$118.08
December 31, 20252,344,567297,650$126.95
March 31, 20263,627,033463,284$127.73
June 30, 2026669,04389,150$133.25
December 31, 20263,392,352472,749$139.36
March 31, 20271,119,095$167,073$149.29
Total12,598,259$1,659,625$131.73

Accumulated Other Comprehensive Income (Loss)

We record deferred gains (losses) in AOCI related to available-for-sale debt securities and interest rate agreement cash flow hedges. Deferred gains (losses) for our available-for-sale debt securities are recognized in earnings upon settlement, while deferred gains (losses) related to our interest rate agreement cash flow hedges are recognized in earnings on a straight-line basis over the life of the related financing. The following tables provide the components of our accumulated other comprehensive income (loss) balances, net of the related tax effects allocated to each component of other comprehensive income (loss).

Available- for-Sale SecuritiesInterest Rate Agreement Cash Flow HedgesTotal
(In thousands)
September 30, 2024$213$465,502$465,715
Other comprehensive income (loss) before reclassifications(65)18,04117,976
Amounts reclassified from accumulated other comprehensive income—(7,140)(7,140)
Net current-period other comprehensive income (loss)(65)10,90110,836
March 31, 2025$148$476,403$476,551
Available- for-Sale SecuritiesInterest Rate Agreement Cash Flow HedgesTotal
(In thousands)
September 30, 2023$(369)$518,897$518,528
Other comprehensive income (loss) before reclassifications246(18,091)(17,845)
Amounts reclassified from accumulated other comprehensive income—(4,983)(4,983)
Net current-period other comprehensive income (loss)246(23,074)(22,828)
March 31, 2024$(123)$495,823$495,700

9. Securitization

Kansas

Atmos Energy Kansas Securitization I, LLC (AEK), a special-purpose entity wholly owned by Atmos Energy, was formed for the purpose of issuing securitized bonds to recover extraordinary costs incurred during Winter Storm Uri in February 2021. In June 2023, AEK completed a public offering of $95 million of Securitized Utility Tariff Bonds. AEK's assets cannot be used to settle Atmos Energy's obligations, and the holders of the Securitized Utility Tariff Bonds have no recourse against Atmos Energy.

As described in Note 10 of our Annual Report on Form 10-K for the fiscal year ended September 30, 2024, AEK is considered to be a variable interest entity. As a result, AEK is included in the condensed consolidated financial statements of Atmos Energy.

The following table summarizes the impact of AEK on our condensed consolidated balance sheets, for the periods indicated:

March 31, 2025September 30, 2024
(In thousands)
Restricted cash and cash equivalents$1,616$1,516
Other current assets$3$3
Securitized intangible asset, net$78,892$82,844
Accrued interest$348$365
Current maturities of securitized long-term debt$8,418$8,207
Securitized long-term debt$72,609$76,871

The following table summarizes the impact of AEK on our condensed consolidated statements of comprehensive income, for the period indicated:

Three Months Ended March 31Six Months Ended March 31
2025202420252024
(In thousands)
Operating revenues$2,951$3,469$6,344$6,802
Operation and maintenance expense(216)(224)(277)(224)
Amortization expense(1,689)(2,103)(3,953)(4,269)
Interest expense, net(1,046)(1,142)(2,114)(2,309)
Income before income taxes$—$—$—$—$—

The securitized long-term debt is recorded at carrying value. The fair value of the securitized long-term debt is determined using third party market value quotations, which are considered Level 2 fair value measurements for debt instruments where fair value is determined using the most recent available quoted market price. The carrying value and fair value of the securitized long-term debt as of March 31, 2025 was $81.0 million and $81.9 million, and as of September 30, 2024 was $85.1 million and $87.8 million.

Texas

In March 2023, the Texas Natural Gas Securitization Finance Corporation (the Finance Corporation), with the authority of the Texas Public Finance Authority (TPFA), issued $3.5 billion in customer rate relief bonds with varying scheduled final maturities from 12 to 18 years. The bonds are obligations of the Finance Corporation, payable from the customer rate relief charges and other bond collateral, and are not an obligation of Atmos Energy. We began collecting the customer rate relief charges on October 1, 2023, and any such property collected is solely owned by the Finance Corporation and not available to pay creditors of Atmos Energy.

10. Interim Pension and Other Postretirement Benefit Plan Information

The components of our net periodic pension cost for our pension and other postretirement benefit plans for the three and six months ended March 31, 2025 and 2024 are presented in the following tables. Most of these costs are recoverable through our tariff rates. A portion of these costs is capitalized into our rate base or deferred as a regulatory asset or liability. The remaining costs are recorded as a component of operation and maintenance expense or other non-operating expense.

Three Months Ended March 31
Pension BenefitsOther Benefits
2025202420252024
(In thousands)
Components of net periodic pension cost:
Service cost$2,837$2,405$2,033$1,507
Interest cost (1)6,6637,4303,3653,509
Expected return on assets (1)(7,655)(7,202)(3,831)(3,128)
Amortization of prior service cost (credit) (1)——(3,260)(3,260)
Amortization of actuarial (gain) loss (1)25697(2,429)(2,718)
Net periodic pension cost$2,101$2,730$(4,122)$(4,090)
Six Months Ended March 31
Pension BenefitsOther Benefits
2025202420252024
(In thousands)
Components of net periodic pension cost:
Service cost$5,674$4,794$4,066$3,014
Interest cost (1)13,32614,9266,7317,017
Expected return on assets (1)(15,309)(14,404)(7,663)(6,256)
Amortization of prior service cost (credit) (1)——(6,520)(6,520)
Amortization of actuarial (gain) loss (1)511215(4,858)(5,436)
Settlements (1)—776——
Net periodic pension cost$4,202$6,307$(8,244)$(8,181)

(1) The components of net periodic cost other than the service cost component are included in the line item other non-operating expense in the condensed consolidated statements of comprehensive income or are capitalized on the condensed consolidated balance sheets as a regulatory asset or liability, as described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024.

11. Commitments and Contingencies

Litigation and Environmental Matters

In the normal course of business, we are subject to various legal and regulatory proceedings. For such matters, we record liabilities when they are considered probable and estimable, based on currently available facts, our historical experience and our estimates of the ultimate outcome or resolution of the liability in the future. While the outcome of these proceedings is uncertain and a loss in excess of the amount we have accrued is possible though not reasonably estimable, it is the opinion of management that any amounts exceeding the accruals will not have a material adverse impact on our financial position, results of operations or cash flows.

The National Transportation Safety Board (NTSB) issued a Preliminary Report on February 14, 2024 relating to its investigation of two incidents that occurred in Jackson, Mississippi on January 24 and 27, 2024 that resulted in one fatality. Atmos Energy is working closely with the NTSB and other state and federal regulators to help determine causal factors.

The NTSB issued a Preliminary Report on December 30, 2024 relating to its investigation of an incident that occurred in Avondale, Louisiana on December 2, 2024 that resulted in one fatality. Atmos Energy is working closely with the NTSB and other state and federal regulators to help determine causal factors.

We are a party to various other litigation and environmental-related matters or claims that have arisen in the ordinary course of our business. While the results of such litigation and response actions to such environmental-related matters or claims cannot be predicted with certainty, we continue to believe the final outcome of such litigation and matters or claims will not have a material adverse effect on our financial condition, results of operations, or cash flows.

Purchase Commitments

Our distribution divisions maintain supply contracts with several vendors that generally cover a period of up to one year. Commitments for estimated base gas volumes are established under these contracts on a monthly basis at contractually negotiated prices. Commitments for incremental daily purchases are made as necessary during the month in accordance with the terms of the individual contract.

Our Mid-Tex Division also maintains a limited number of long-term supply contracts to ensure a reliable source of gas for our customers in its service area, which obligate it to purchase specified volumes at prices under contracts indexed to natural gas hubs or fixed price contracts. These purchase commitment contracts are detailed in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. At March 31, 2025, we were committed to purchase 67.5 Bcf within one year and 57.5 Bcf within two to three years under indexed contracts. At March 31, 2025, we had no commitments under fixed price contracts.

Rate Regulatory Proceedings

As of March 31, 2025, routine rate regulatory proceedings were in progress in several of our service areas, which are discussed in further detail below in Management’s Discussion and Analysis — Recent Ratemaking Developments. Except for these proceedings, there were no material changes to rate regulatory proceedings for the six months ended March 31, 2025.

12. Income Taxes

Income Tax Expense

Our interim effective tax rates reflect the estimated annual effective tax rates for the fiscal years ended September 30, 2025 and 2024, adjusted for tax expense associated with certain discrete items. The effective tax rates for the three months ended March 31, 2025 and 2024 were 19.5% and 15.7% and for the six months ended March 31, 2025 and 2024 were 19.0% and 15.3%. These effective tax rates differ from the federal statutory tax rate of 21% primarily due to the amortization of excess deferred federal income tax liabilities, tax credits, state income taxes, and other permanent book-to-tax differences. These adjustments have a relative impact on the effective tax rate proportionally to pretax income or loss.

Regulatory Excess Deferred Taxes

Regulatory excess net deferred taxes represent changes in our net deferred tax liability related to our cost of service ratemaking due to the enactment of the Tax Cuts and Jobs Act of 2017 (the TCJA), a Kansas legislative change enacted in fiscal 2020, and a Louisiana legislative change enacted in fiscal 2025. Currently, the regulatory excess net deferred tax liability of $178.6 million is being returned over various periods. Of this amount, $115.5 million is being returned to customers over 12 - 60 months. An additional $48.6 million is being returned to customers on a provisional basis over 15 - 68 years until our regulators establish the final refund periods. The refund of the remaining $14.5 million will be addressed in future rate proceedings.

As of March 31, 2025 and September 30, 2024, $73.9 million and $79.7 million is recorded in other current liabilities.

13. Financial Instruments

We currently use financial instruments to mitigate commodity price risk and interest rate risk. The objectives and strategies for using financial instruments and the related accounting for these financial instruments are fully described in Notes 2 and 16 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. During the six months ended March 31, 2025, there were no material changes in our objectives, strategies, and accounting for using financial instruments. Our financial instruments do not contain any credit-risk-related or other contingent features that could cause payments to be accelerated when our financial instruments are in net liability positions. The following summarizes those objectives and strategies.

Commodity Risk Management Activities

Our purchased gas cost adjustment mechanisms essentially insulate our distribution segment from commodity price risk; however, our customers are exposed to the effects of volatile natural gas prices. We manage this exposure through a combination of physical storage, fixed-price forward contracts, and financial instruments, primarily over-the-counter swap and option contracts, in an effort to minimize the impact of natural gas price volatility on our customers during the winter heating season.

We typically seek to hedge between 25 and 50 percent of anticipated heating season gas purchases using financial instruments. For the 2024-2025 heating season (generally October through March), in the jurisdictions where we are permitted to utilize financial instruments, we hedged approximately 24.0 Bcf of the winter flowing gas requirements. We have not designated these financial instruments as hedges for accounting purposes.

Interest Rate Risk Management Activities

We manage interest rate risk by periodically entering into financial instruments to effectively fix the Treasury yield component of the interest cost associated with anticipated financings.

The following table summarizes our existing forward starting interest rate swaps as of March 31, 2025. These swaps were designated as cash flow hedges at the time the agreements were executed.

Planned Debt Issuance DateAmount Hedged
(In thousands)
Fiscal 2026$300,000
$300,000

Quantitative Disclosures Related to Financial Instruments

The following tables present detailed information concerning the impact of financial instruments on our condensed consolidated balance sheet and statements of comprehensive income.

As of March 31, 2025, our financial instruments were comprised of both long and short commodity positions. A long position is a contract to purchase the commodity, while a short position is a contract to sell the commodity. As of March 31, 2025, we had 4,017 MMcf of net long commodity contracts outstanding. These contracts have not been designated as hedges.

Financial Instruments on the Balance Sheet

The following tables present the fair value and balance sheet classification of our financial instruments as of March 31, 2025 and September 30, 2024. The gross amounts of recognized assets and liabilities are netted within our condensed consolidated balance sheets to the extent that we have netting arrangements with our counterparties. However, as of March 31, 2025 and September 30, 2024, no gross amounts and no cash collateral were netted within our consolidated balance sheet.

March 31, 2025
Balance Sheet LocationAssetsLiabilities
(In thousands)
Designated As Hedges:
Interest rate contractsOther current assets / Other current liabilities$114,996$—
Total114,996—
Not Designated As Hedges:
Commodity contractsOther current assets / Other current liabilities8,213(561)
Total8,213(561)
Gross / Net Financial Instruments$123,209$(561)
September 30, 2024
Balance Sheet LocationAssetsLiabilities
(In thousands)
Designated As Hedges:
Interest rate contractsDeferred charges and other assets / Deferred credits and other liabilities$91,981$—
Total91,981—
Not Designated As Hedges:
Commodity contractsOther current assets / Other current liabilities2,091(7,324)
Commodity contractsDeferred charges and other assets / Deferred credits and other liabilities2,216(313)
Total4,307(7,637)
Gross / Net Financial Instruments$96,288$(7,637)

Impact of Financial Instruments on the Statement of Comprehensive Income

Cash Flow Hedges

As discussed above, our distribution segment has interest rate agreements, which we designated as cash flow hedges at the time the agreements were executed. The net (gain) loss on settled interest rate agreements reclassified from AOCI into interest charges on our condensed consolidated statements of comprehensive income for the three months ended March 31, 2025 and 2024 was $(5.1) million and $(3.2) million and for the six months ended March 31, 2025 and 2024 was $(10.2) million and $(6.4) million.

The following table summarizes the gains and losses arising from hedging transactions that were recognized as a component of other comprehensive income (loss), net of taxes, for the three and six months ended March 31, 2025 and 2024.

Three Months Ended March 31Six Months Ended March 31
2025202420252024
(In thousands)
Increase (decrease) in fair value:
Interest rate agreements$(1,678)$29,650$18,041$(18,091)
Recognition of (gains) losses in earnings due to settlements:
Interest rate agreements(3,982)(2,492)(7,140)(4,983)
Total other comprehensive income (loss) from hedging, net of tax$(5,660)$27,158$10,901$(23,074)

Deferred gains (losses) recorded in AOCI associated with our interest rate agreements are recognized in earnings as they are amortized over the terms of the underlying debt instruments. As of March 31, 2025, we had $387.0 million of net realized gains in AOCI associated with our interest rate agreements. The following amounts, net of deferred taxes, represent the expected recognition in earnings of the deferred net gains recorded in AOCI associated with our interest rate agreements, based upon the fair values of these agreements at the date of settlement. The remaining amortization periods for these settled amounts extend through fiscal 2055. However, the table below does not include the expected recognition in earnings of our outstanding interest rate swaps as those instruments have not yet settled.

Interest Rate Agreements
(In thousands)
Next twelve months$15,925
Thereafter371,080
Total$387,005

Financial Instruments Not Designated as Hedges

As discussed above, commodity contracts which are used in our distribution segment are not designated as hedges. However, there is no earnings impact on our distribution segment as a result of the use of these financial instruments because the gains and losses arising from the use of these financial instruments are recognized in the consolidated statement of comprehensive income as a component of purchased gas cost when the related costs are recovered through our rates and recognized in revenue. Accordingly, the impact of these financial instruments is excluded from this presentation.

14. Fair Value Measurements

We report certain assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). We record cash and cash equivalents, restricted cash and cash equivalents, accounts receivable, accounts payable, and short-term debt at carrying value, which substantially approximates fair value due to the short-term nature of these assets and liabilities. For other financial assets and liabilities, we primarily use quoted market prices and other observable market pricing information to minimize the use of unobservable pricing inputs in our measurements when determining fair value. The methods used to determine fair value for our assets and liabilities are fully described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. During the six months ended March 31, 2025, there were no changes in these methods.

Fair value measurements also apply to the valuation of our pension and postretirement plan assets. Current accounting guidance requires employers to annually disclose information about fair value measurements of the assets of a defined benefit pension or other postretirement plan. The fair value of these assets is presented in Note 11 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024.

Quantitative Disclosures

Financial Instruments

The classification of our fair value measurements requires judgment regarding the degree to which market data is observable or corroborated by observable market data. Authoritative accounting literature establishes a fair value hierarchy that prioritizes the inputs used to measure fair value based on observable and unobservable data. The hierarchy categorizes the inputs into three levels, with the highest priority given to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1), with the lowest priority given to unobservable inputs (Level 3). The following tables summarize, by level within the fair value hierarchy, our assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2025 and September 30, 2024. Assets and liabilities are categorized in their entirety based on the lowest level of input that is significant to the fair value measurement.

Quoted Prices in Active Markets (Level 1)Significant Other Observable Inputs (Level 2)****(1)Significant Other Unobservable Inputs (Level 3)Netting and Cash CollateralMarch 31, 2025
(In thousands)
Assets:
Financial instruments$—$123,209$—$—$123,209
Debt and equity securities
Registered investment companies27,787———27,787
Bond mutual funds40,955———40,955
Bonds (2)—37,118——37,118
Money market funds—3,189——3,189
Total debt and equity securities68,74240,307——109,049
Total assets$68,742$163,516$—$—$232,258
Liabilities:
Financial instruments$—$561$—$—$561
Quoted Prices in Active Markets (Level 1)Significant Other Observable Inputs (Level 2)****(1)Significant Other Unobservable Inputs (Level 3)Netting and Cash CollateralSeptember 30, 2024
(In thousands)
Assets:
Financial instruments$—$96,288$—$—$96,288
Debt and equity securities
Registered investment companies28,311———28,311
Bond mutual funds40,341———40,341
Bonds (2)—39,142——39,142
Money market funds—2,800——2,800
Total debt and equity securities68,65241,942——110,594
Total assets$68,652$138,230$—$—$206,882
Liabilities:
Financial instruments$—$7,637$—$—$7,637

(1)Our Level 2 measurements consist of over-the-counter options and swaps, which are valued using a market-based approach in which observable market prices are adjusted for criteria specific to each instrument, such as the strike price, notional amount or basis differences, municipal and corporate bonds, which are valued based on the most recent available quoted market prices and money market funds that are valued at cost.

(2)Our investments in bonds are considered available-for-sale debt securities in accordance with current accounting guidance.

Debt and equity securities are comprised of our available-for-sale debt securities and our equity securities. As described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024, we evaluate the performance of our available-for-sale debt securities on an investment by investment basis for impairment, taking into consideration the investment’s purpose, volatility, current returns, and any intent to sell the security. As of March 31, 2025, no allowance for credit losses was recorded for our available-for-sale debt securities. At March 31, 2025 and September 30, 2024, the amortized cost of our available-for-sale debt securities was $36.9 million and $38.9 million. At March 31, 2025, we maintained investments in bonds that have contractual maturity dates ranging from April 2025 through January 2028.

Other Fair Value Measures

Our long-term debt is recorded at carrying value. The fair value of our long-term debt, excluding finance leases, is determined using third party market value quotations, which are considered Level 1 fair value measurements for debt instruments with a recent, observable trade or Level 2 fair value measurements for debt instruments where fair value is determined using the most recent available quoted market price. The carrying value of our finance leases materially approximates fair value. The following table presents the carrying value and fair value of our long-term debt, excluding finance leases, debt issuance costs and original issue premium or discount, as of March 31, 2025 and September 30, 2024:

March 31, 2025September 30, 2024
(In thousands)
Carrying Amount$8,435,000$7,785,000
Fair Value$7,568,621$7,337,936

15. Concentration of Credit Risk

Information regarding our concentration of credit risk is disclosed in Note 18 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024. During the six months ended March 31, 2025, there were no material changes in our concentration of credit risk.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders of Atmos Energy Corporation

Results of Review of Interim Financial Statements

We have reviewed the accompanying condensed consolidated balance sheet of Atmos Energy Corporation (the Company) as of March 31, 2025, the related condensed consolidated statements of comprehensive income for the three and six month periods ended March 31, 2025 and 2024, the condensed consolidated statement of cash flows for the six month periods ended March 31, 2025 and 2024, and the related notes (collectively referred to as the "condensed consolidated interim financial statements"). Based on our reviews, we are not aware of any material modifications that should be made to the condensed consolidated interim financial statements for them to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of September 30, 2024, the related consolidated statements of comprehensive income, shareholders’ equity and cash flows for the year then ended, and the related notes (not presented herein); and in our report dated November 18, 2024, we expressed an unqualified audit opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of September 30, 2024, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

These financial statements are the responsibility of the Company's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the SEC and the PCAOB. We conducted our review in accordance with the standards of the PCAOB. A review of interim financial statements consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ ERNST & YOUNG LLP

Dallas, Texas

May 7, 2025

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