Cover
Cover - USD ($) | 12 Months Ended | ||
Sep. 30, 2022 | Nov. 07, 2022 | Mar. 31, 2022 | |
Cover [Abstract] | |||
Document Type | 10-K | ||
Document Annual Report | true | ||
Document Period End Date | Sep. 30, 2022 | ||
Current Fiscal Year End Date | --09-30 | ||
Document Transition Report | false | ||
Entity File Number | 1-10042 | ||
Entity Registrant Name | Atmos Energy Corp | ||
Entity Incorporation, State or Country Code | TX | ||
Entity Tax Identification Number | 75-1743247 | ||
Entity Address, Address Line One | 1800 Three Lincoln Centre | ||
Entity Address, Address Line Two | 5430 LBJ Freeway | ||
Entity Address, City or Town | Dallas | ||
Entity Address, State or Province | TX | ||
Entity Address, Postal Zip Code | 75240 | ||
City Area Code | 972 | ||
Local Phone Number | 934-9227 | ||
Title of 12(b) Security | Common stock | ||
Trading Symbol | ATO | ||
Security Exchange Name | NYSE | ||
Entity Well Known Seasoned Issuer | Yes | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Large Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
ICFR Auditor Attestation Flag | true | ||
Entity Shell Company | false | ||
Entity Public Float | $ 16,491,263,629 | ||
Entity Common Stock Shares Outstanding | 140,900,576 | ||
Documents Incorporated by Reference | Portions of the registrant’s Definitive Proxy Statement to be filed for the Annual Meeting of Shareholders on February 8, 2023 are incorporated by reference into Part III of this report. | ||
Entity Central Index Key | 0000731802 | ||
Document Fiscal Year Focus | 2022 | ||
Document Fiscal Period Focus | FY | ||
Amendment Flag | false |
Audit Information
Audit Information | 12 Months Ended |
Sep. 30, 2022 | |
Auditor Information [Abstract] | |
Auditor Name | Ernst & Young LLP |
Auditor Firm ID | 42 |
Auditor Location | Dallas, Texas |
CONSOLIDATED BALANCE SHEETS
CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
ASSETS | ||
Property, plant and equipment | $ 19,402,271 | $ 17,258,547 |
Construction in progress | 835,868 | 626,551 |
Total property, plant and equipment and construction in progress | 20,238,139 | 17,885,098 |
Less accumulated depreciation and amortization | 2,997,900 | 2,821,128 |
Net property, plant and equipment | 17,240,239 | 15,063,970 |
Current assets | ||
Cash and cash equivalents | 51,554 | 116,723 |
Accounts receivable, less allowance for uncollectible accounts of $49,993 in 2022 and $64,471 in 2021 | 363,708 | 342,967 |
Gas stored underground | 357,941 | 178,116 |
Other current assets (See Note 9) | 2,274,490 | 2,200,909 |
Total current assets | 3,047,693 | 2,838,715 |
Goodwill | 731,257 | 731,257 |
Deferred charges and other assets (See Note 9) | 1,173,800 | 974,720 |
Total assets | 22,192,989 | 19,608,662 |
Shareholders’ equity | ||
Common stock, no par value (stated at $0.005 per share); 200,000,000 shares authorized; issued and outstanding: 2022 — 140,896,598 shares; 2021 — 132,419,754 shares | 704 | 662 |
Additional paid-in capital | 5,838,118 | 5,023,751 |
Accumulated other comprehensive income | 369,112 | 69,803 |
Retained earnings | 3,211,157 | 2,812,673 |
Shareholders’ equity | 9,419,091 | 7,906,889 |
Long-term debt | 5,760,647 | 4,930,205 |
Total capitalization | 15,179,738 | 12,837,094 |
Commitments and contingencies (See Note 13) | ||
Current liabilities | ||
Accounts payable and accrued liabilities | 496,019 | 423,222 |
Other current liabilities | 720,157 | 686,681 |
Short-term debt | 184,967 | 0 |
Current maturities of long-term debt | 2,201,457 | 2,400,452 |
Total current liabilities | 3,602,600 | 3,510,355 |
Deferred income taxes | 1,999,505 | 1,705,809 |
Regulatory excess deferred taxes (See Note 14) | 385,213 | 549,227 |
Regulatory cost of removal obligation | 487,631 | 468,688 |
Deferred credits and other liabilities | 538,302 | 537,489 |
Total shareholders' equity and liabilities | $ 22,192,989 | $ 19,608,662 |
CONSOLIDATED BALANCE SHEETS (PA
CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Statement of Financial Position [Abstract] | ||
Allowance for doubtful accounts | $ 49,993 | $ 64,471 |
Common stock stated value per share (USD per share) | $ 0.005 | $ 0.005 |
Common stock shares authorized (in shares) | 200,000,000 | 200,000,000 |
Common stock shares issued (in shares) | 140,896,598 | 132,419,754 |
Common stock shares outstanding (in shares) | 140,896,598 | 132,419,754 |
CONSOLIDATED STATEMENTS OF COMP
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Operating revenues | $ 4,201,662 | $ 3,407,490 | $ 2,821,137 |
Purchased gas cost | 1,682,656 | 1,032,717 | 658,854 |
Operation and maintenance expense | 710,161 | 679,019 | 629,601 |
Depreciation and amortization expense | 535,655 | 477,977 | 429,828 |
Taxes, other than income | 352,208 | 312,779 | 278,755 |
Operating income | 920,982 | 904,998 | 824,099 |
Other non-operating income (expense) | 33,737 | (2,145) | 7,171 |
Interest charges | 102,811 | 83,554 | 84,474 |
Income before income taxes | 851,908 | 819,299 | 746,796 |
Income tax expense | 77,510 | 153,736 | 145,353 |
Net income | $ 774,398 | $ 665,563 | $ 601,443 |
Basic net income per share (USD per share) | $ 5.61 | $ 5.12 | $ 4.89 |
Diluted net income per share (USD per share) | $ 5.60 | $ 5.12 | $ 4.89 |
Weighted average shares outstanding - basic (in shares) | 137,830 | 129,779 | 122,788 |
Weighted average shares outstanding - diluted (in shares) | 138,096 | 129,834 | 122,872 |
Other comprehensive income (loss), net of tax | |||
Net unrealized holding gains (losses) on available-for-sale securities, net of tax of $(157), $(55) and $32 | $ (542) | $ (191) | $ 106 |
Cash flow hedges: | |||
Amortization and unrealized gains on interest rate agreements, net of tax of $86,664, $36,875 and $17,198 | 299,851 | 127,583 | 56,888 |
Total other comprehensive income | 299,309 | 127,392 | 56,994 |
Total comprehensive income | 1,073,707 | 792,955 | 658,437 |
Distribution | |||
Operating revenues | 4,031,936 | 3,238,753 | 2,624,251 |
Pipeline and Storage | |||
Operating revenues | 169,726 | 168,737 | 196,886 |
Purchased gas cost | |||
Purchased gas cost | 1,682,656 | 1,032,717 | 658,854 |
Purchased gas cost | Distribution | |||
Operating revenues | 3,909,893 | 3,119,194 | 2,503,681 |
Operating Segments | Distribution | |||
Operating revenues | 4,035,194 | 3,241,973 | 2,626,993 |
Purchased gas cost | 2,210,302 | 1,501,695 | 1,071,227 |
Operation and maintenance expense | 518,443 | 501,209 | 472,760 |
Depreciation and amortization expense | 387,858 | 345,481 | 309,582 |
Taxes, other than income | 314,046 | 275,074 | 245,181 |
Operating income | 604,545 | 618,514 | 528,243 |
Other non-operating income (expense) | 6,946 | (20,694) | (1,265) |
Interest charges | 49,921 | 36,629 | 39,634 |
Income before income taxes | 561,570 | 561,191 | 487,344 |
Income tax expense | 39,593 | 115,329 | 91,680 |
Net income | 521,977 | 445,862 | 395,664 |
Operating Segments | Pipeline and Storage | |||
Operating revenues | 693,660 | 637,347 | 609,339 |
Purchased gas cost | (1,583) | 1,582 | 1,548 |
Operation and maintenance expense | 192,847 | 179,080 | 158,115 |
Depreciation and amortization expense | 147,797 | 132,496 | 120,246 |
Taxes, other than income | 38,162 | 37,705 | 33,574 |
Operating income | 316,437 | 286,484 | 295,856 |
Other non-operating income (expense) | 26,791 | 18,549 | 8,436 |
Interest charges | 52,890 | 46,925 | 44,840 |
Income before income taxes | 290,338 | 258,108 | 259,452 |
Income tax expense | 37,917 | 38,407 | 53,673 |
Net income | 252,421 | 219,701 | 205,779 |
Operating Segments | Purchased gas cost | Distribution | |||
Purchased gas cost | 2,210,302 | 1,501,695 | 1,071,227 |
Operating Segments | Purchased gas cost | Pipeline and Storage | |||
Purchased gas cost | (1,583) | 1,582 | 1,548 |
Eliminations | |||
Operating revenues | (527,192) | (471,830) | (415,195) |
Purchased gas cost | (526,063) | (470,560) | (413,921) |
Operation and maintenance expense | (1,129) | (1,270) | (1,274) |
Depreciation and amortization expense | 0 | 0 | 0 |
Taxes, other than income | 0 | 0 | 0 |
Operating income | 0 | 0 | 0 |
Other non-operating income (expense) | 0 | 0 | 0 |
Interest charges | 0 | 0 | 0 |
Income before income taxes | 0 | 0 | 0 |
Income tax expense | 0 | 0 | 0 |
Net income | 0 | 0 | 0 |
Eliminations | Distribution | |||
Operating revenues | 3,258 | 3,220 | 2,742 |
Eliminations | Pipeline and Storage | |||
Operating revenues | 523,934 | 468,610 | 412,453 |
Eliminations | Purchased gas cost | |||
Purchased gas cost | $ (526,063) | $ (470,560) | $ (413,921) |
CONSOLIDATED STATEMENTS OF CO_2
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (PARENTHETICAL) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Statement of Comprehensive Income [Abstract] | |||
Net unrealized holding gains (losses) on available-for-sale securities, tax | $ (157) | $ (55) | $ 32 |
Amortization and unrealized gains on interest rate agreements, tax | $ 86,664 | $ 36,875 | $ 17,198 |
CONSOLIDATED STATEMENTS OF SHAR
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Retained Earnings |
Common stock shares outstanding, balance (in shares) at Sep. 30, 2019 | 119,338,925 | ||||
Shareholders' equity, beginning balance at Sep. 30, 2019 | $ 5,750,223 | $ 597 | $ 3,712,194 | $ (114,583) | $ 2,152,015 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Net income | 601,443 | 601,443 | |||
Other comprehensive income | 56,994 | 56,994 | |||
Cash dividends | (282,444) | (282,444) | |||
Common stock issued: | |||||
Public offering (in shares) | 6,101,916 | ||||
Public offering | 624,302 | $ 30 | 624,272 | ||
Direct stock purchase plan (in shares) | 107,989 | ||||
Direct stock purchase plan | 11,326 | $ 1 | 11,325 | ||
Retirement savings plan (in shares) | 78,941 | ||||
Retirement savings plan | 8,222 | 8,222 | |||
1998 Long-term incentive plan (in shares) | 254,706 | ||||
1998 Long-term incentive plan | 2,749 | $ 1 | 2,748 | ||
Employee stock-based compensation | 18,388 | 18,388 | |||
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2020 | 125,882,477 | ||||
Shareholders' equity, ending balance at Sep. 30, 2020 | 6,791,203 | $ 629 | 4,377,149 | (57,589) | 2,471,014 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Net income | 665,563 | 665,563 | |||
Other comprehensive income | 127,392 | 127,392 | |||
Cash dividends | (323,904) | (323,904) | |||
Common stock issued: | |||||
Public offering (in shares) | 6,130,875 | ||||
Public offering | 606,667 | $ 31 | 606,636 | ||
Direct stock purchase plan (in shares) | 79,921 | ||||
Direct stock purchase plan | 7,715 | 7,715 | |||
Retirement savings plan (in shares) | 84,265 | ||||
Retirement savings plan | 8,126 | $ 1 | 8,125 | ||
1998 Long-term incentive plan (in shares) | 242,216 | ||||
1998 Long-term incentive plan | 3,092 | $ 1 | 3,091 | ||
Employee stock-based compensation | $ 21,035 | 21,035 | |||
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2021 | 132,419,754 | 132,419,754 | |||
Shareholders' equity, ending balance at Sep. 30, 2021 | $ 7,906,889 | $ 662 | 5,023,751 | 69,803 | 2,812,673 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||
Net income | 774,398 | 774,398 | |||
Other comprehensive income | 299,309 | 299,309 | |||
Cash dividends | (375,914) | (375,914) | |||
Common stock issued: | |||||
Public offering (in shares) | 7,907,883 | ||||
Public offering | 776,805 | $ 40 | 776,765 | ||
Direct stock purchase plan (in shares) | 68,693 | ||||
Direct stock purchase plan | 7,495 | 7,495 | |||
Retirement savings plan (in shares) | 72,339 | ||||
Retirement savings plan | 7,908 | 7,908 | |||
1998 Long-term incentive plan (in shares) | 427,929 | ||||
1998 Long-term incentive plan | 2,398 | $ 2 | 2,396 | ||
Employee stock-based compensation | $ 19,803 | 19,803 | |||
Common stock shares outstanding, ending balance (in shares) at Sep. 30, 2022 | 140,896,598 | 140,896,598 | |||
Shareholders' equity, ending balance at Sep. 30, 2022 | $ 9,419,091 | $ 704 | $ 5,838,118 | $ 369,112 | $ 3,211,157 |
CONSOLIDATED STATEMENTS OF SH_2
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (PARENTHETICAL) - $ / shares | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Statement of Stockholders' Equity [Abstract] | |||
Cash dividends per share (USD per share) | $ 2.72 | $ 2.50 | $ 2.30 |
CONSOLIDATED STATEMENTS OF CASH
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
CASH FLOWS FROM OPERATING ACTIVITIES | |||
Net income | $ 774,398 | $ 665,563 | $ 601,443 |
Adjustments to reconcile net income to net cash provided by (used in) operating activities: | |||
Depreciation and amortization | 535,655 | 477,977 | 429,828 |
Deferred income taxes | 53,651 | 155,355 | 155,322 |
One-time income tax benefit | 0 | 0 | (20,962) |
Stock-based compensation | 10,743 | 11,255 | 9,583 |
Amortization of debt issuance costs | 9,141 | 14,030 | 11,543 |
Equity component of AFUDC | (45,505) | (32,749) | (23,493) |
Other | 3,265 | 3,731 | 8,411 |
Changes in assets and liabilities: | |||
(Increase) decrease in accounts receivable | (34,325) | (113,665) | 7,167 |
(Increase) decrease in gas stored underground | (179,825) | (66,166) | 18,188 |
Increase in Winter Storm Uri current regulatory asset (see Note 9) | 0 | (2,003,659) | 0 |
Increase in other current assets | (65,979) | (84,705) | (35,878) |
Increase in Winter Storm Uri long-term regulatory asset (see Note 9) | 0 | (76,652) | 0 |
(Increase) decrease in deferred charges and other assets | 13,287 | 136,809 | (31,935) |
Increase in accounts payable and accrued liabilities | 40,394 | 104,242 | 7,359 |
Decrease in other current liabilities | (152,274) | (166,268) | (129,543) |
Increase (decrease) in deferred credits and other liabilities | 14,958 | (109,349) | 30,966 |
Net cash provided by (used in) operating activities | 977,584 | (1,084,251) | 1,037,999 |
CASH FLOWS USED IN INVESTING ACTIVITIES | |||
Capital expenditures | (2,444,420) | (1,969,540) | (1,935,676) |
Purchases of debt and equity securities | (28,285) | (49,879) | (50,517) |
Proceeds from sale of debt and equity securities | 4,872 | 14,957 | 32,339 |
Maturities of debt securities | 27,586 | 28,850 | 18,669 |
Other, net | 10,289 | 11,957 | 9,667 |
Net cash used in investing activities | (2,429,958) | (1,963,655) | (1,925,518) |
CASH FLOWS FROM FINANCING ACTIVITIES | |||
Net increase (decrease) in short-term debt | 184,967 | 0 | (464,915) |
Proceeds from issuance of long-term debt, net of premium/discount | 798,802 | 2,797,346 | 999,450 |
Net proceeds from equity offering | 776,805 | 606,667 | 624,302 |
Issuance of common stock through stock purchase and employee retirement plans | 15,403 | 15,841 | 19,548 |
Settlement of interest rate swaps | 197,073 | 62,159 | (4,426) |
Repayment of long-term debt | (200,000) | 0 | 0 |
Cash dividends paid | (375,914) | (323,904) | (282,444) |
Debt issuance costs | (8,196) | (14,288) | (7,738) |
Other | (1,735) | 0 | 0 |
Net cash provided by financing activities | 1,387,205 | 3,143,821 | 883,777 |
Net increase (decrease) in cash and cash equivalents | (65,169) | 95,915 | (3,742) |
Cash and cash equivalents at beginning of year | 116,723 | 20,808 | 24,550 |
Cash and cash equivalents at end of year | $ 51,554 | $ 116,723 | $ 20,808 |
Nature of Business
Nature of Business | 12 Months Ended |
Sep. 30, 2022 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Nature of Business | 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. Through our distribution business, we deliver natural gas through sales and transportation arrangements to approximately 3.3 million residential, commercial, public-authority and industrial customers through our six regulated distribution divisions in the service areas described below: Division Service Area Atmos Energy Colorado-Kansas Division Colorado, Kansas Atmos Energy Kentucky/Mid-States Division Kentucky, Tennessee, Virginia (1) Atmos Energy Louisiana Division Louisiana Atmos Energy Mid-Tex Division Texas, including the Dallas/Fort Worth metropolitan area Atmos Energy Mississippi Division Mississippi Atmos Energy West Texas Division West Texas (1) Denotes location where we have more limited service areas. In addition, we transport natural gas for others through our distribution system. Our distribution business is subject to federal and state regulation and/or regulation by local authorities in each of the states in which our distribution divisions operate. Our corporate headquarters and shared-services function are located in Dallas, Texas, and our customer support centers are located in Amarillo and Waco, Texas. |
Summary of Significant Accounti
Summary of Significant Accounting Policies | 12 Months Ended |
Sep. 30, 2022 | |
Accounting Policies [Abstract] | |
Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Principles of consolidation — The accompanying consolidated financial statements include the accounts of Atmos Energy Corporation and its wholly-owned subsidiaries. All material intercompany transactions have been eliminated; however, we have not eliminated intercompany profits when such amounts are probable of recovery under the affiliates’ rate regulation process. Use of estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. The most significant estimates include the allowance for doubtful accounts, unbilled revenues, contingency accruals, pension and postretirement obligations, deferred income taxes, impairment of long-lived assets, risk management and trading activities, fair value measurements and the valuation of goodwill and other long-lived assets. Actual results could differ from those estimates. Regulation — Our distribution and pipeline and storage operations are subject to regulation with respect to rates, service, maintenance of accounting records and various other matters by the respective regulatory authorities in the states in which we operate. Our accounting policies recognize the financial effects of the ratemaking and accounting practices and policies of the various regulatory commissions. 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. The amounts to be recovered or recognized are based upon historical experience and our understanding of the regulations. Further, regulation may impact the period in which revenues or expenses are recognized. 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 and the long-term portion of regulatory excess deferred taxes and regulatory cost of removal obligation are reported separately. Significant regulatory assets and liabilities as of September 30, 2022 and 2021 included the following: September 30 2022 2021 (In thousands) Regulatory assets: Pension and postretirement benefit costs $ 31,122 $ 45,922 Infrastructure mechanisms (1) 235,972 222,795 Winter Storm Uri incremental costs (2) 2,109,454 2,100,728 Deferred gas costs 119,742 66,395 Regulatory excess deferred taxes (3) 47,311 45,370 Recoverable loss on reacquired debt 3,406 3,789 Deferred pipeline record collection costs 36,898 32,099 Other 21,467 4,343 $ 2,605,372 $ 2,521,441 Regulatory liabilities: Regulatory excess deferred taxes (3) $ 545,021 $ 705,084 Regulatory cost of removal obligation 568,307 541,511 Deferred gas costs 28,834 52,553 Asset retirement obligation 5,737 18,373 APT annual adjustment mechanism 31,138 31,110 Pension and postretirement benefit costs 156,857 56,201 Other 23,013 19,363 $ 1,358,907 $ 1,424,195 (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 the deferred expenses until the next rate proceeding (rate case or annual rate filing), at which time investment and costs would be recovered through base rates. (2) Includes extraordinary gas costs incurred during Winter Storm Uri and related carrying costs. See Note 9 to the consolidated financial statements for further information. This amount is recorded within other current assets and deferred charges and other assets on the consolidated balance sheet as of September 30, 2022 and 2021. (3) Regulatory excess 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") and a Kansas legislative change enacted in fiscal 2020. See Notes 12 and 14 to the consolidated financial statements for further information. Revenue recognition Distribution Revenues Distribution revenues represent the delivery of natural gas to residential, commercial, industrial and public authority customers at prices based on tariff rates established by regulatory authorities in the states in which we operate. Revenue is recognized and our performance obligation is satisfied over time when natural gas is delivered and simultaneously consumed by our customers. We have elected to use the invoice practical expedient and recognize revenue for volumes delivered that we have the right to invoice our customers. We bill our customers on a monthly cycle basis. Accordingly, we estimate volumes from the last meter read to the balance sheet date and accrue revenue for gas delivered but not yet billed. In our Texas and Mississippi jurisdictions, we pay franchise fees and gross receipt taxes to operate in these service areas. These franchise fees and gross receipts taxes are required to be paid regardless of our ability to collect from our customers. Accordingly, we account for these amounts on a gross basis in revenue and we record the associated tax expense as a component of taxes, other than income. Pipeline and Storage Revenues Pipeline and storage revenues primarily represent the transportation and storage of natural gas on our APT system and the transmission of natural gas through our 21-mile pipeline in Louisiana. APT provides transportation and storage services to our Mid-Tex Division, other third party local distribution companies and certain industrial customers under tariff rates approved by the RRC. APT also provides certain transportation and storage services to industrial and electric generation customers, as well as marketers and producers, under negotiated rates. Our pipeline in Louisiana is primarily used to aggregate gas supply for our Louisiana Division under a long-term contract and on a more limited basis to third parties. The demand fee charged to our Louisiana Division is subject to regulatory approval by the Louisiana Public Service Commission. We also manage two asset management plans with distribution affiliates of the Company at terms that have been approved by the applicable state regulatory commissions. The performance obligations for these transportation customers are satisfied by means of transporting customer-supplied gas to the designated location. Revenue is recognized and our performance obligation is satisfied over time when natural gas is delivered to the customer. Management determined that these arrangements qualify for the invoice practical expedient for recognizing revenue. For demand fee arrangements, revenue is recognized and our performance obligation is satisfied by standing ready to transport natural gas over the period of each individual month. Alternative Revenue Program Revenues In our distribution segment, we have weather-normalization adjustment mechanisms that serve to minimize the effects of weather on our residential and commercial revenues. Additionally, 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 of $69.4 million that was established in its most recent rate case. Differences between actual revenues and revenues calculated under these mechanisms adjust the amount billed to customers. These mechanisms are considered to be alternative revenue programs under accounting standards generally accepted in the United States as they are deemed to be contracts between us and our regulator. Accordingly, revenue under these mechanisms are excluded from revenue from contracts with customers. Purchased gas costs — Rates established by regulatory authorities are adjusted for increases and decreases in our purchased gas costs through purchased gas cost adjustment mechanisms. There is no margin generated through purchased gas cost adjustments, but they provide a dollar-for-dollar offset to increases or decreases in our distribution segment’s gas costs. The effects of these purchased gas cost adjustment mechanisms are recorded as deferred gas costs on our consolidated balance sheets. Cash and cash equivalents — We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. 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. The receivable balances are short term and generally do not extend beyond one month. On October 1, 2020, we adopted new accounting guidance which requires credit losses on our accounts receivable to be measured using an expected credit loss model over the entire contractual term from the date of initial recognition. To minimize credit risk, we assess the credit worthiness of new customers, require deposits where necessary, assess late fees, pursue collection activities and disconnect service for nonpayment. After disconnection, accounts are written off when deemed uncollectible. At each reporting period, we assess the allowance for uncollectible accounts based on historical experience, current conditions and consideration of expected future conditions. Circumstances which could affect our estimates include, but are not limited to, customer credit issues, the level of natural gas prices, customer deposits and general economic conditions. Gas stored underground — Our gas stored underground is comprised of natural gas injected into storage to support the winter season withdrawals for our distribution operations. The average cost method is used for all of our distribution operations. Gas in storage that is retained as cushion gas to maintain reservoir pressure is classified as property, plant and equipment and is valued at cost. Property, plant and equipment — Regulated property, plant and equipment is stated at original cost, net of contributions in aid of construction. The cost of additions includes direct construction costs, payroll related costs (taxes, the service cost portion of pension expense and other benefits), administrative and general costs and an allowance for funds used during construction (AFUDC). AFUDC represents the capitalizable total cost of funds used to finance the construction of major projects. The following table details amounts capitalized for the fiscal year ended September 30. 2022 2021 2020 Component of AFUDC Statement of Comprehensive Income Location (In thousands) Debt Interest charges $ 12,153 $ 11,414 $ 8,436 Equity Other non-operating income (expense) 45,505 32,749 23,493 $ 57,658 $ 44,163 $ 31,929 Major renewals, including replacement pipe, and betterments that are recoverable through our regulatory rate base are capitalized while the costs of maintenance and repairs that are not capitalizable are charged to expense as incurred. The costs of large projects are accumulated in construction in progress until the project is completed. When the project is completed, tested and placed in service, the balance is transferred to the regulated plant in service account included in the rate base and depreciation begins. Regulated property, plant and equipment is depreciated at various rates on a straight-line basis. These rates are approved by our regulatory commissions and are comprised of two components: one based on average service life and one based on cost of removal. Accordingly, we recognize our cost of removal expense as a component of depreciation expense. The related cost of removal accrual is reflected as a regulatory liability on the consolidated balance sheet. At the time property, plant and equipment is retired, removal expenses less salvage, are charged to the regulatory cost of removal accrual. The composite depreciation rate was 3.0 percent for the fiscal years ended September 30, 2022, 2021 and 2020. Other property, plant and equipment is stated at cost. Depreciation is generally computed on the straight-line method for financial reporting purposes based upon estimated useful lives. Asset retirement obligations — We record a liability at fair value for an asset retirement obligation when the legal obligation to retire the asset has been incurred with an offsetting increase to the carrying value of the related asset. We believe we have a legal obligation to retire our natural gas storage facilities. However, we have not recognized an asset retirement obligation associated with our storage facilities because we are not able to determine the settlement date of this obligation as we do not anticipate taking our storage facilities out of service permanently. Therefore, we cannot reasonably estimate the fair value of this obligation. Impairment of long-lived assets — We evaluate whether events or circumstances have occurred that indicate that other long-lived assets may not be recoverable or that the remaining useful life may warrant revision. When such events or circumstances are present, we assess the recoverability of long-lived assets by determining whether the carrying value will be recovered through the expected future cash flows. In the event the sum of the expected future cash flows resulting from the use of the asset is less than the carrying value of the asset, an impairment loss equal to the excess of the asset’s carrying value over its fair value is recorded. Goodwill — We annually evaluate our goodwill balances for impairment during our second fiscal quarter or more frequently as impairment indicators arise. During the second quarter of fiscal 2022, we completed our annual goodwill impairment assessment. We test goodwill for impairment 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. Although not applicable for the fiscal 2022 analysis, if a qualitative goodwill assessment resulted in impairment indicators, we would then use a present value technique based on discounted cash flows to estimate the fair value of our reporting units. These calculations are dependent on several subjective factors including the timing of future cash flows, future growth rates and the discount rate. An impairment charge is recognized if the carrying value of a reporting unit’s goodwill exceeds its fair value. Lease accounting — We adopted the provisions of the new lease accounting standard beginning on October 1, 2019. Results for reporting periods beginning on October 1, 2019 are presented under the new lease accounting standard and prior periods are presented under the former lease accounting standard. Upon adoption, we recorded right of use (ROU) assets and lease liabilities within the consolidated balance sheet. We determine if an arrangement is a lease at the inception of the agreement based on the terms and conditions in the contract. A contract contains a lease if there is an identified asset and we have the right to control the asset. We are the lessee for substantially all of our leasing activities, which primarily includes operating leases for office and warehouse space, tower space, vehicles and heavy equipment used in our operations. We are also a lessee in finance leases for certain service centers. We record a lease liability and a corresponding ROU asset for all of our leases with a term greater than 12 months. For lease contracts containing renewal and termination options, we include the option period in the lease term when it is reasonably certain the option will be exercised. We most frequently assume renewal options at the inception of the arrangement for our tower and fleet leases, based on our anticipated use of the assets. Real estate leases that contain a renewal option are evaluated on a lease-by-lease basis to determine if the option period should be included in the lease term. Currently, we have not included material renewal options for real estate leases in our ROU asset or lease liability. The lease liability represents the present value of all lease payments over the lease term. We do not include short-term leases in the calculation of our lease liabilities. The discount rate used to determine the present value of the lease liability is the rate implicit in the lease unless that rate cannot be readily determined. We use the implicit rate stated in the agreement to determine the lease liability for our fleet leases. We use our corporate collateralized incremental borrowing rate as the discount rate for all other lease agreements. This rate is appropriate because we believe it represents the rate we would have incurred to borrow funds to acquire the leased asset over a similar term. We calculated this rate using a combination of inputs, including our current credit rating, quoted market prices of interest rates for our publicly traded unsecured debt, observable market yield curve data for peer companies with a credit rating one notch higher than our current credit rating and the lease term. The ROU asset represents the right to use the underlying asset for the lease term, and is equal to the lease liability, adjusted for prepaid or accrued lease payments and any lease incentives that have been paid to us or when we are reasonably certain to incur costs equal to or greater than the allowance defined in the contract. We bundle our lease and non-lease components as a single component for all asset classes. Variable payments included in our leasing arrangements are expensed in the period in which the obligation for these payments is incurred. Variable payments are dependent on usage, output or may vary for other reasons. Most of our variable lease expense is related to tower leases that have escalating payments based on changes to a stated CPI index, and usage of certain office equipment. We have not provided material residual value guarantees for our leases, nor do our leases contain material restrictions or covenants. Marketable securities — As of September 30, 2022, we hold marketable securities classified as either equity or debt securities. Changes in fair value of our equity securities are recorded in net income, while debt securities, which are considered available-for-sale securities, are reported at market value with unrealized gains and losses shown as a component of accumulated other comprehensive income (loss). On October 1, 2020, we adopted new accounting guidance that introduced an impairment recognition model for available-for-sale debt securities that requires credit losses to be recorded through an allowance account. We regularly evaluate the performance of our available-for-sale debt securities on an investment by investment basis for impairment, taking into consideration the securities’ purpose, volatility and current returns. If a determination is made that a security will likely be sold before the recovery of its cost, the related investment is written down to its estimated fair value. Financial instruments and hedging activities — We use financial instruments to mitigate commodity price risk in our distribution and pipeline and storage segments and to mitigate interest rate risk. The objectives and strategies for using financial instruments have been tailored to our business and are discussed in Note 15 to the consolidated financial statements. We record all of our financial instruments on the balance sheet at fair value , with the exception of normal purchases and normal sales that are expected to result in physical delivery, with changes in fair value ultimately recorded in the statement of comprehensive income. These financial instruments are reported as risk management assets and liabilities and are classified as current or noncurrent other assets or liabilities based upon the anticipated settlement date of the underlying financial instrument. We record the cash flow impact of our financial instruments in operating cash flows based upon their balance sheet classification. The timing of when changes in fair value of our financial instruments are recorded in the statement of comprehensive income depends on whether the financial instrument has been designated and qualifies as a part of a hedging relationship or if regulatory rulings require a different accounting treatment. Changes in fair value for financial instruments that do not meet one of these criteria are recognized in the statement of comprehensive income as they occur. Financial Instruments Associated with Commodity Price Risk In our distribution segment, the costs associated with and the realized gains and losses arising from the use of financial instruments to mitigate commodity price risk are included in our purchased gas cost adjustment mechanisms in accordance with regulatory requirements. Therefore, changes in the fair value of these financial instruments are initially recorded as a component of deferred gas costs and recognized in the consolidated statements of comprehensive income as a component of purchased gas cost when the related costs are recovered through our rates and recognized in revenue in accordance with accounting principles generally accepted in the United States. Accordingly, there is no earnings impact on our distribution segment as a result of the use of these financial instruments. Financial Instruments Associated with Interest Rate Risk In connection with the planned issuance of long-term debt, we may use financial instruments to manage interest rate risk. We currently manage this risk through the use of forward starting interest rate swaps to fix the Treasury yield component of the interest cost associated with anticipated financings. We designate these financial instruments as cash flow hedges at the time the agreements are executed. Unrealized gains and losses associated with the instruments are recorded as a component of accumulated other comprehensive income (loss). When the instruments settle, the realized gain or loss is recorded as a component of accumulated other comprehensive income (loss) and recognized as a component of interest charges over the life of the related financing arrangement. As of September 30, 2022 and 2021, no cash was required to be held in margin accounts. 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 primarily use quoted market prices and other observable market pricing information in valuing our financial assets and liabilities and minimize the use of unobservable pricing inputs in our measurements. Fair-value estimates also consider our own creditworthiness and the creditworthiness of the counterparties involved. Our counterparties consist primarily of financial institutions and major energy companies. This concentration of counterparties may materially impact our exposure to credit risk resulting from market, economic or regulatory conditions. We seek to minimize counterparty credit risk through an evaluation of their financial condition and credit ratings and the use of collateral requirements under certain circumstances. Amounts reported at fair value are subject to potentially significant volatility based upon changes in market prices, including, but not limited to, the valuation of the portfolio of our contracts, maturity and settlement of these contracts and newly originated transactions and interest rates, each of which directly affect the estimated fair value of our financial instruments. We believe the market prices and models used to value these financial instruments represent the best information available with respect to closing exchange and over-the-counter quotations, time value and volatility factors underlying the contracts. Values are adjusted to reflect the potential impact of an orderly liquidation of our positions over a reasonable period of time under then current market conditions. 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) and the lowest priority given to unobservable inputs (Level 3). The levels of the hierarchy are described below: Level 1 — Represents unadjusted quoted prices in active markets for identical assets or liabilities. An active market for the asset or liability is defined as a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis. Prices actively quoted on national exchanges are used to determine the fair value of most of our assets and liabilities recorded on our balance sheet at fair value. Our Level 1 measurements consist primarily of our debt and equity securities. The Level 1 measurements for investments in the Atmos Energy Corporation Master Retirement Trust (the Master Trust), Supplemental Executive Benefit Plan and postretirement benefit plan consist primarily of exchange-traded financial instruments. Level 2 — Represents pricing inputs other than quoted prices included in Level 1 that are either directly or indirectly observable for the asset or liability as of the reporting date. These inputs are derived principally from, or corroborated by, observable market data. Our Level 2 measurements primarily consist of non-exchange-traded financial instruments, such as over-the-counter options and swaps and municipal and corporate bonds where market data for pricing is observable. The Level 2 measurements for investments in our Master Trust, Supplemental Executive Benefit Plan and postretirement benefit plan consist primarily of non-exchange traded financial instruments such as corporate bonds and government securities. Level 3 — Represents generally unobservable pricing inputs which are developed based on the best information available, including our own internal data, in situations where there is little if any market activity for the asset or liability at the measurement date. The pricing inputs utilized reflect what a market participant would use to determine fair value. We currently do not have any Level 3 investments. Pension and other postretirement plans — Pension and other postretirement plan costs and liabilities are determined on an actuarial basis and are affected by numerous assumptions and estimates including the market value of plan assets, estimates of the expected return on plan assets, assumed discount rates and current demographic and actuarial mortality data. Our measurement date is September 30. The assumed discount rate and the expected return are the assumptions that generally have the most significant impact on our pension costs and liabilities. The assumed discount rate, the assumed health care cost trend rate and assumed rates of retirement generally have the most significant impact on our postretirement plan costs and liabilities. The discount rate is utilized principally in calculating the actuarial present value of our pension and postretirement obligation and net pension and postretirement cost. When establishing our discount rate, we consider high quality corporate bond rates based on bonds available in the marketplace that are suitable for settling the obligations, changes in those rates from the prior year and the implied discount rate that is derived from matching our projected benefit disbursements with currently available high quality corporate bonds. The expected long-term rate of return on assets is utilized in calculating the expected return on plan assets component of the annual pension and postretirement plan cost. We estimate the expected return on plan assets by evaluating expected bond returns, equity risk premiums, asset allocations, the effects of active plan management, the impact of periodic plan asset rebalancing and historical performance. We also consider the guidance from our investment advisors when making a final determination of our expected rate of return on assets. To the extent the actual rate of return on assets realized over the course of a year is greater than or less than the assumed rate, that year’s annual pension or postretirement plan cost is not affected. Rather, this gain or loss is amortized over the expected future working lifetime of the plan participants. The expected return on plan assets is then calculated by applying the expected long-term rate of return on plan assets to the market-related value of the plan assets. The market-related value of our plan assets represents the fair market value of the plan assets, adjusted to smooth out short-term market fluctuations over a five-year period. The use of this calculation will delay the impact of current market fluctuations on the pension expense for the period. We use a corridor approach to amortize actuarial gains and losses. Under this approach, net gains or losses in excess of ten percent of the larger of the pension benefit obligation or the market-related value of the assets are amortized on a straight-line basis. The period of amortization is the average remaining service of active participants who are expected to receive benefits under the plan. We estimate the assumed health care cost trend rate used in determining our annual postretirement net cost based upon our actual health care cost experience, the effects of recently enacted legislation and general economic conditions. Our assumed rate of retirement is estimated based upon the annual review of our participant census information as of the measurement date. We present only the current service cost component of the net benefit cost within operations and maintenance expense in the consolidated statements of comprehensive income. The remaining components of net benefit cost are recorded in other non-operating income (expense) in our consolidated statements of comprehensive income. Only the service cost component of net benefit cost is eligible for capitalization and we continue to capitalize these costs into property, plant and equipment. Additionally, we defer into a regulatory asset the portion of non-service components of net periodic benefit cost that are capitalizable for regulatory purposes. Income taxes — Income taxes are determined based on the liability method, which results in income tax assets and liabilities arising from temporary differences. Temporary differences are differences between the tax bases of assets and liabilities and their reported amounts in the financial statements that will result in taxable or deductible amounts in future years. The liability method requires the effect of tax rate changes on accumulated deferred income taxes to be reflected in the period in which the rate change was enacted. The liability method also requires that deferred tax assets be reduced by a valuation allowance unless it is more likely than not that the assets will be realized. The Company may recognize the tax benefit from uncertain tax positions only if it is at least more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon settlement with the taxing authorities. We recognize accrued i |
Segment Information
Segment Information | 12 Months Ended |
Sep. 30, 2022 | |
Segment Reporting [Abstract] | |
Segment Information | Segment Information As of September 30, 2022, we manage and review our consolidated operations through the following two reportable segments: • The distribution segment is primarily comprised of our regulated natural gas distribution and related sales operations in eight states. • The pipeline and storage segment is comprised primarily of the pipeline and storage operations of our Atmos Pipeline-Texas division and our natural gas transmission operations in Louisiana. Our determination of reportable segments considers the strategic operating units under which we manage sales of various products and services to customers. Although our distribution segment operations are geographically dispersed, they are aggregated and reported as a single segment as each natural gas distribution division has similar economic characteristics. In addition, because the pipeline and storage operations of our Atmos Pipeline-Texas division and our natural gas transmission operations in Louisiana have similar economic characteristics, they have been aggregated and reported as a single segment. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. We evaluate performance based on net income or loss of the respective operating units. We allocate interest and pension expense to the pipeline and storage segment; however, there is no debt or pension liability recorded on the pipeline and storage segment balance sheet. All material intercompany transactions have been eliminated; however, we have not eliminated intercompany profits when such amounts are probable of recovery under the affiliates’ rate regulation process. Income taxes are allocated to each segment as if each segment’s income taxes were calculated on a separate return basis. Income statements and capital expenditures by segment are shown in the following tables. Year Ended September 30, 2022 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 4,031,936 $ 169,726 $ — $ 4,201,662 Intersegment revenues 3,258 523,934 (527,192) — Total operating revenues 4,035,194 693,660 (527,192) 4,201,662 Purchased gas cost 2,210,302 (1,583) (526,063) 1,682,656 Operation and maintenance expense 518,443 192,847 (1,129) 710,161 Depreciation and amortization expense 387,858 147,797 — 535,655 Taxes, other than income 314,046 38,162 — 352,208 Operating income 604,545 316,437 — 920,982 Other non-operating income 6,946 26,791 — 33,737 Interest charges 49,921 52,890 — 102,811 Income before income taxes 561,570 290,338 — 851,908 Income tax expense 39,593 37,917 — 77,510 Net income $ 521,977 $ 252,421 $ — $ 774,398 Capital expenditures $ 1,675,798 $ 768,622 $ — $ 2,444,420 Year Ended September 30, 2021 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 3,238,753 $ 168,737 $ — $ 3,407,490 Intersegment revenues 3,220 468,610 (471,830) — Total operating revenues 3,241,973 637,347 (471,830) 3,407,490 Purchased gas cost 1,501,695 1,582 (470,560) 1,032,717 Operation and maintenance expense 501,209 179,080 (1,270) 679,019 Depreciation and amortization expense 345,481 132,496 — 477,977 Taxes, other than income 275,074 37,705 — 312,779 Operating income 618,514 286,484 — 904,998 Other non-operating income (expense) (20,694) 18,549 — (2,145) Interest charges 36,629 46,925 — 83,554 Income before income taxes 561,191 258,108 — 819,299 Income tax expense 115,329 38,407 — 153,736 Net income $ 445,862 $ 219,701 $ — $ 665,563 Capital expenditures $ 1,454,195 $ 515,345 $ — $ 1,969,540 Year Ended September 30, 2020 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 2,624,251 $ 196,886 $ — $ 2,821,137 Intersegment revenues 2,742 412,453 (415,195) — Total operating revenues 2,626,993 609,339 (415,195) 2,821,137 Purchased gas cost 1,071,227 1,548 (413,921) 658,854 Operation and maintenance expense 472,760 158,115 (1,274) 629,601 Depreciation and amortization expense 309,582 120,246 — 429,828 Taxes, other than income 245,181 33,574 — 278,755 Operating income 528,243 295,856 — 824,099 Other non-operating income (expense) (1,265) 8,436 — 7,171 Interest charges 39,634 44,840 — 84,474 Income before income taxes 487,344 259,452 — 746,796 Income tax expense 91,680 53,673 — 145,353 Net income $ 395,664 $ 205,779 $ — $ 601,443 Capital expenditures $ 1,466,631 $ 469,045 $ — $ 1,935,676 The following table summarizes our revenues from external parties, excluding intersegment revenues, by products and services for the fiscal years ended September 30. 2022 2021 2020 (In thousands) Distribution revenues: Gas sales revenues: Residential $ 2,492,116 $ 2,117,272 $ 1,717,070 Commercial 1,126,189 838,382 654,963 Industrial 224,632 113,171 89,641 Public authority and other 66,956 50,369 42,007 Total gas sales revenues 3,909,893 3,119,194 2,503,681 Transportation revenues 110,905 105,554 97,441 Other gas revenues 11,138 14,005 23,129 Total distribution revenues 4,031,936 3,238,753 2,624,251 Pipeline and storage revenues 169,726 168,737 196,886 Total operating revenues $ 4,201,662 $ 3,407,490 $ 2,821,137 Balance sheet information at September 30, 2022 and 2021 by segment is presented in the following tables. September 30, 2022 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Property, plant and equipment, net $ 12,723,532 $ 4,516,707 $ — $ 17,240,239 Total assets $ 21,424,586 $ 4,797,206 $ (4,028,803) $ 22,192,989 September 30, 2021 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Property, plant and equipment, net $ 11,232,649 $ 3,831,321 $ — $ 15,063,970 Total assets $ 18,847,266 $ 4,076,844 $ (3,315,448) $ 19,608,662 |
Earnings Per Share
Earnings Per Share | 12 Months Ended |
Sep. 30, 2022 | |
Earnings Per Share [Abstract] | |
Earnings Per Share | 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 consolidated financial statements, when the impact is dilutive. Basic and diluted earnings per share for the fiscal years ended September 30 are calculated as follows: 2022 2021 2020 (In thousands, except per share data) Basic Earnings Per Share Net income $ 774,398 $ 665,563 $ 601,443 Less: Income allocated to participating securities 508 465 444 Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Basic weighted average shares outstanding 137,830 129,779 122,788 Net income per share — Basic $ 5.61 $ 5.12 $ 4.89 Diluted Earnings Per Share Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Effect of dilutive shares — — — Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Basic weighted average shares outstanding 137,830 129,779 122,788 Dilutive shares 266 55 84 Diluted weighted average shares outstanding 138,096 129,834 122,872 Net income per share — Diluted $ 5.60 $ 5.12 $ 4.89 |
Revenue and Accounts Receivable
Revenue and Accounts Receivable | 12 Months Ended |
Sep. 30, 2022 | |
Revenue from Contract with Customer [Abstract] | |
Revenue and Accounts Receivable | Revenue and Accounts Receivable The following tables disaggregates our revenue from contracts with customers by customer type and segment and provides a reconciliation to total operating revenues, including intersegment revenues, for the periods presented. Year Ended September 30, 2022 Distribution Pipeline and Storage (In thousands) Gas sales revenues: Residential $ 2,472,461 $ — Commercial 1,120,322 — Industrial 224,427 — Public authority and other 66,691 — Total gas sales revenues 3,883,901 — Transportation revenues 113,043 707,205 Miscellaneous revenues 10,282 13,679 Revenues from contracts with customers 4,007,226 720,884 Alternative revenue program revenues (1) 26,041 (27,224) Other revenues 1,927 — Total operating revenues $ 4,035,194 $ 693,660 Year Ended September 30, 2021 Distribution Pipeline and Storage Gas sales revenues: Residential $ 2,129,704 $ — Commercial 841,145 — Industrial 113,091 — Public authority and other 50,565 — Total gas sales revenues 3,134,505 — Transportation revenues 107,822 646,416 Miscellaneous revenues 10,971 14,141 Revenues from contracts with customers 3,253,298 660,557 Alternative revenue program revenues (1) (13,303) (23,210) Other revenues 1,978 — Total operating revenues $ 3,241,973 $ 637,347 Year Ended September 30, 2020 Distribution Pipeline and Storage Gas sales revenues: Residential $ 1,704,444 $ — Commercial 650,396 — Industrial 89,467 — Public authority and other 41,339 — Total gas sales revenues 2,485,646 — Transportation revenues 99,435 636,819 Miscellaneous revenues 19,085 9,754 Revenues from contracts with customers 2,604,166 646,573 Alternative revenue program revenues (1) 20,856 (37,234) Other revenues 1,971 — Total operating revenues $ 2,626,993 $ 609,339 (1) In our distribution segment, we have weather-normalization adjustment mechanisms that serve to mitigate the effects of weather on our revenue. Additionally, 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. Accounts receivable and allowance for uncollectible accounts Rollforwards of our allowance for uncollectible accounts for the years ended September 30, 2022, 2021 and 2020 are presented in the table below. In response to the COVID-19 pandemic, beginning in March 2020, regulators issued collection moratoriums, which required us to temporarily suspend our customer collection activities and charging late fees. After regulators lifted these moratoriums, we resumed customer collection activities during the third quarter of fiscal 2021. These regulatory orders influenced our bad debt expense and writeoffs from fiscal 2020 through 2022. We actively work with our customers experiencing financial hardship to offer flexible payment options and to direct them to aid agencies for financial assistance. Our allowance for uncollectible accounts reflects the expected impact on our customers’ ability to pay. Our allowance for uncollectible accounts also reflects the fact that we have the ability to recovery the gas cost portion of uncollectible accounts through our gas cost recovery mechanisms in five states, which covers approximately 81 percent of our residential and commercial customers. Allowance for uncollectible accounts (In thousands) Balance, September 30, 2019 $ 15,899 Current period provisions 24,796 Write-offs charged against allowance (12,698) Recoveries of amounts previously written off 1,952 Balance, September 30, 2020 29,949 Current period provisions 43,807 Write-offs charged against allowance (11,019) Recoveries of amounts previously written off 1,734 Balance, September 30, 2021 64,471 Current period provisions 16,576 Write-offs charged against allowance (32,885) Recoveries of amounts previously written off 1,831 Balance, September 30, 2022 $ 49,993 |
Leases
Leases | 12 Months Ended |
Sep. 30, 2022 | |
Leases [Abstract] | |
Leases | Leases We are the lessee for substantially all of our leasing activity, which primarily includes operating leases for office and warehouse space, tower space, vehicles and heavy equipment used in our operations. We are also a lessee in finance leases for service centers. The following table presents our weighted average remaining lease term for our leases. September 30, 2022 September 30, 2021 Weighted average remaining lease term (years) Finance leases 18.7 19.0 Operating leases 9.7 10.2 The following table represents our weighted average discount rate: September 30, 2022 September 30, 2021 Weighted average discount rate Finance leases 4.0 % 5.7 % Operating leases 2.9 % 2.8 % Lease costs for the years ended September 30, 2022, 2021 and 2020 are presented in the table below. These costs include both amounts recognized in expense and amounts capitalized. For the years ended September 30, 2022, 2021 and 2020 we did not have material short-term lease costs or variable lease costs. Year Ended September 30 2022 2021 2020 (In thousands) Finance lease cost $ 4,314 $ 1,334 $ 622 Operating lease cost 43,394 42,349 40,887 Total lease cost $ 47,708 $ 43,683 $ 41,509 Our ROU assets and lease liabilities are presented as follows on the consolidated balance sheets: Balance Sheet Classification September 30, 2022 September 30, 2021 (In thousands) Assets Finance leases Net Property, Plant and Equipment $ 50,118 $ 18,252 Operating leases Deferred charges and other assets 214,663 222,446 Total right-of-use assets $ 264,781 $ 240,698 Liabilities Current Finance leases Current maturities of long-term debt $ 1,457 $ 452 Operating leases Other current liabilities 38,644 37,688 Noncurrent Finance leases Long-term debt 50,393 18,287 Operating leases Deferred credits and other liabilities 184,301 194,745 Total lease liabilities $ 274,795 $ 251,172 Two service center leases are expected to commence in the fourth quarter of fiscal 2023 that impact our future lease payments. The total future lease payments for these leases are $48.1 million. Other pertinent information related to leases was as follows. During the years ended September 30, 2022, 2021 and 2020 amounts paid in cash for our finance leases were not material. Year Ended September 30 2022 2021 2020 (In thousands) Cash paid amounts included in the measurement of lease liabilities Operating cash flows used for operating leases $ 45,080 $ 42,013 $ 37,758 Right-of-use assets obtained in exchange for lease obligations Finance leases $ 33,833 $ 10,333 $ 6,083 Operating leases $ 28,310 $ 25,690 $ 34,169 Maturities of our lease liabilities as of September 30, 2022 were as follows by fiscal years: Total Finance Leases Operating Leases (In thousands) 2023 $ 46,417 $ 3,313 $ 43,104 2024 39,832 3,375 36,457 2025 30,612 3,438 27,174 2026 24,141 3,502 20,639 2027 21,322 3,568 17,754 Thereafter 170,704 55,997 114,707 Total lease payments 333,028 73,193 259,835 Less: Imputed interest 58,233 21,343 36,890 Total $ 274,795 $ 51,850 $ 222,945 Reported as of September 30, 2022 Short-term lease liabilities $ 40,101 $ 1,457 $ 38,644 Long-term lease liabilities 234,694 50,393 184,301 Total lease liabilities $ 274,795 $ 51,850 $ 222,945 |
Leases | Leases We are the lessee for substantially all of our leasing activity, which primarily includes operating leases for office and warehouse space, tower space, vehicles and heavy equipment used in our operations. We are also a lessee in finance leases for service centers. The following table presents our weighted average remaining lease term for our leases. September 30, 2022 September 30, 2021 Weighted average remaining lease term (years) Finance leases 18.7 19.0 Operating leases 9.7 10.2 The following table represents our weighted average discount rate: September 30, 2022 September 30, 2021 Weighted average discount rate Finance leases 4.0 % 5.7 % Operating leases 2.9 % 2.8 % Lease costs for the years ended September 30, 2022, 2021 and 2020 are presented in the table below. These costs include both amounts recognized in expense and amounts capitalized. For the years ended September 30, 2022, 2021 and 2020 we did not have material short-term lease costs or variable lease costs. Year Ended September 30 2022 2021 2020 (In thousands) Finance lease cost $ 4,314 $ 1,334 $ 622 Operating lease cost 43,394 42,349 40,887 Total lease cost $ 47,708 $ 43,683 $ 41,509 Our ROU assets and lease liabilities are presented as follows on the consolidated balance sheets: Balance Sheet Classification September 30, 2022 September 30, 2021 (In thousands) Assets Finance leases Net Property, Plant and Equipment $ 50,118 $ 18,252 Operating leases Deferred charges and other assets 214,663 222,446 Total right-of-use assets $ 264,781 $ 240,698 Liabilities Current Finance leases Current maturities of long-term debt $ 1,457 $ 452 Operating leases Other current liabilities 38,644 37,688 Noncurrent Finance leases Long-term debt 50,393 18,287 Operating leases Deferred credits and other liabilities 184,301 194,745 Total lease liabilities $ 274,795 $ 251,172 Two service center leases are expected to commence in the fourth quarter of fiscal 2023 that impact our future lease payments. The total future lease payments for these leases are $48.1 million. Other pertinent information related to leases was as follows. During the years ended September 30, 2022, 2021 and 2020 amounts paid in cash for our finance leases were not material. Year Ended September 30 2022 2021 2020 (In thousands) Cash paid amounts included in the measurement of lease liabilities Operating cash flows used for operating leases $ 45,080 $ 42,013 $ 37,758 Right-of-use assets obtained in exchange for lease obligations Finance leases $ 33,833 $ 10,333 $ 6,083 Operating leases $ 28,310 $ 25,690 $ 34,169 Maturities of our lease liabilities as of September 30, 2022 were as follows by fiscal years: Total Finance Leases Operating Leases (In thousands) 2023 $ 46,417 $ 3,313 $ 43,104 2024 39,832 3,375 36,457 2025 30,612 3,438 27,174 2026 24,141 3,502 20,639 2027 21,322 3,568 17,754 Thereafter 170,704 55,997 114,707 Total lease payments 333,028 73,193 259,835 Less: Imputed interest 58,233 21,343 36,890 Total $ 274,795 $ 51,850 $ 222,945 Reported as of September 30, 2022 Short-term lease liabilities $ 40,101 $ 1,457 $ 38,644 Long-term lease liabilities 234,694 50,393 184,301 Total lease liabilities $ 274,795 $ 51,850 $ 222,945 |
Debt
Debt | 12 Months Ended |
Sep. 30, 2022 | |
Debt Disclosure [Abstract] | |
Debt | Debt Long-term debt Long-term debt at September 30, 2022 and 2021 consisted of the following: 2022 2021 (In thousands) Unsecured 0.625% Senior Notes, due March 2023 $ 1,100,000 $ 1,100,000 Unsecured 3.00% Senior Notes, due June 2027 500,000 500,000 Unsecured 2.625% Senior Notes, due September 2029 500,000 300,000 Unsecured 1.50% Senior Notes, due January 2031 600,000 600,000 Unsecured 5.95% Senior Notes, due October 2034 200,000 200,000 Unsecured 5.50% Senior Notes, due June 2041 400,000 400,000 Unsecured 4.15% Senior Notes, due January 2043 500,000 500,000 Unsecured 4.125% Senior Notes, due October 2044 750,000 750,000 Unsecured 4.30% Senior Notes, due October 2048 600,000 600,000 Unsecured 4.125% Senior Notes, due March 2049 450,000 450,000 Unsecured 3.375% Senior Notes, due September 2049 500,000 500,000 Unsecured 2.85% Senior Notes, due February 2052 600,000 — Floating-rate term loan, due April 2022 — 200,000 Floating-rate Senior Notes, due March 2023 1,100,000 1,100,000 Medium term Series A notes, 1995-1, 6.67%, due December 2025 10,000 10,000 Unsecured 6.75% Debentures, due July 2028 150,000 150,000 Finance lease obligations (see Note 6) 51,850 18,739 Total long-term debt 8,011,850 7,378,739 Less: Net original issue discount on unsecured senior notes and debentures 3,704 2,811 Debt issuance cost 46,042 45,271 Current maturities 2,201,457 2,400,452 $ 5,760,647 $ 4,930,205 Maturities of long-term debt, excluding our finance lease obligations, at September 30, 2022 were as follows by fiscal years (in thousands): 2023 $ 2,200,000 2024 — 2025 — 2026 10,000 2027 500,000 Thereafter 5,250,000 $ 7,960,000 On October 3, 2022, we completed a public offering of $500 million of 5.750% senior notes due fiscal 2053, with an effective interest rate of 4.504%, after giving effect to the estimated offering costs and settlement of our interest rate swaps, and $300 million of 5.450% senior notes due fiscal 2033, with an effective interest rate of 5.570%, after giving effect to the estimated offering costs. The net proceeds from the offering, after the underwriting discount and estimated offering expenses, of $789.4 million were used for general corporate purposes. In September 2022, we settled the interest rate swaps associated with the $500 million offering and received $197.1 million. On January 14, 2022, we completed a public offering of $200 million of 2.625% senior notes due fiscal 2029, with an effective interest rate of 2.54%, after giving effect to the offering costs. The net proceeds from the offering, after the underwriting discount and offering expenses, of $200.8 million were used to repay our $200 million floating-rate term loan on January 18, 2022. On October 1, 2021, we completed a public offering of $600 million of 2.85% senior notes due fiscal 2052, with an effective interest rate of 2.58%, 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 $589.8 million, will be used for general corporate purposes. In September 2021, we settled the interest rate swaps associated with this offering and received $62.2 million. On March 9, 2021, we completed a public offering of $1.1 billion of 0.625% senior notes due fiscal 2023, with an effective interest rate of 0.834%, after giving effect to the offering costs, and $1.1 billion floating rate senior notes due fiscal 2023 that bear interest at a rate equal to the Three-Month LIBOR rate plus 0.38%. The net proceeds from the offering, after the underwriting discount and offering expenses, of $2.2 billion were used for the payment of unplanned natural gas costs incurred during Winter Storm Uri. The notes are subject to optional redemption at any time on or after September 9, 2021 at a price equal to 100% of the principal amount of the notes being redeemed, plus any accrued and unpaid interest thereon, if any, to, but excluding, the redemption date. As discussed in Note 9 to the consolidated financial statements, we intend to repay these notes in fiscal 2023 after the expected receipt of securitization funds. On October 1, 2020, we completed a public offering of $600 million of 1.50% senior notes due 2031, with an effective interest rate of 1.71%, 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 $592.3 million, were used for general corporate purposes, including the repayment of working capital borrowings pursuant to our commercial paper program and the related settlement of our interest rate swaps. 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 with an equity-to-total-capitalization ratio between 50% and 60%, inclusive of long-term and short-term debt. 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 $2.5 billion of total working capital funding. The primary source of our funding is our commercial paper program, which is supported by a five-year unsecured $1.5 billion credit facility. On March 31, 2022, we amended this agreement to (i) extend the maturity date from March 31, 2026 to March 31, 2027 and (ii) replace the London interbank offered rate (the LIBOR Rate) with the forward-looking term rate based on the secured overnight financing rate (the SOFR Rate) as the interest rate benchmark. The facility now bears interest at a base rate or at a 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 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 September 30, 2022, there was $185.0 million outstanding under our commercial paper program with a weighted average interest rate of 3.06% and weighted average maturities of less than one month. At September 30, 2021, there were no amounts outstanding under our commercial paper program We also have a $900 million three-year unsecured revolving credit facility which is used to provide additional working capital funding. On March 31, 2022, we amended this agreement to (i) extend the maturity date from March 31, 2024 to March 31, 2025 and (ii) replace the LIBOR Rate with the SOFR Rate as the interest benchmark. This facility now bears interest at a base rate or at a 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 SOFR-based advances, based on the Company's credit ratings. Additionally, the facility contains a $100 million accordion feature, which provides the opportunity to increase the total committed loan to $1.0 billion. At September 30, 2022 and 2021, there were no borrowings outstanding under this facility. Additionally, we have a $50 million 364-day unsecured facility, which was renewed April 1, 2022 and is used to provide working capital funding. There were no borrowings outstanding under this facility as of September 30, 2022 and 2021. Finally, we have a $50 million 364-day unsecured revolving credit facility, which was renewed March 31, 2022 and is used to issue letters of credit and to provide working capital funding. At September 30, 2022, there were no borrowings outstanding under the new 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 September 30, 2022, our total-debt-to-total-capitalization ratio, as defined, was 47 percent. In addition, both the interest margin and the fee that we pay on unused amounts under each 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 is not paid at maturity. We were in compliance with all of our debt covenants as of September 30, 2022. 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. |
Shareholders' Equity
Shareholders' Equity | 12 Months Ended |
Sep. 30, 2022 | |
Equity [Abstract] | |
Shareholders' Equity | Shareholders' Equity Shelf Registration, At-the-Market Equity Sales Program and Equity Issuances On June 29, 2021, we filed a shelf registration statement with the Securities and Exchange Commission (SEC) that allows us to issue up to $5.0 billion in common stock and/or debt securities, which expires June 29, 2024. At September 30, 2022, approximately $2.2 billion of securities remained available for issuance under the shelf registration statement. Following the completion of the $800 million senior unsecured notes offering on October 3, 2022 (see Note 7 to the consolidated financial statements), approximately $1.4 billion of securities remained available for issuance under the shelf registration statement. On March 23, 2022, 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 $1.0 billion through June 29, 2024 (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 June 29, 2021, which was exhausted during our second fiscal quarter. During the year ended September 30, 2022, we executed forward sales under our ATM equity sales programs with various forward sellers who borrowed and sold 11,862,319 shares of our common stock at an aggregate price of $1.3 billion. During the year ended September 30, 2022, we also settled forward sale agreements with respect to 7,907,883 shares that had been borrowed and sold by various forward sellers under the ATM program for net proceeds of $776.8 million. As of September 30, 2022, $481.7 million of equity was available for issuance under our existing ATM program. Additionally, we had $776.6 million in available proceeds from outstanding forward sale agreements, as detailed below. Maturity Shares Available Net Proceeds Available Forward Price September 29, 2023 4,552,157 $ 492,015 $ 108.08 December 29, 2023 919,898 105,451 $ 114.63 March 28, 2024 1,554,105 179,177 $ 115.29 Total 7,026,160 $ 776,643 $ 110.54 Accumulated Other Comprehensive Income (Loss) We record deferred gains (losses) in accumulated other comprehensive income (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 as a component of interest charges, as they are amortized. 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- Interest Rate Total (In thousands) September 30, 2021 $ 47 $ 69,756 $ 69,803 Other comprehensive income (loss) before reclassifications (542) 296,875 296,333 Amounts reclassified from accumulated other comprehensive income — 2,976 2,976 Net current-period other comprehensive income (loss) (542) 299,851 299,309 September 30, 2022 $ (495) $ 369,607 $ 369,112 Available- Interest Rate Total (In thousands) September 30, 2020 $ 238 $ (57,827) $ (57,589) Other comprehensive income (loss) before reclassifications (191) 123,017 122,826 Amounts reclassified from accumulated other comprehensive income — 4,566 4,566 Net current-period other comprehensive income (loss) (191) 127,583 127,392 September 30, 2021 $ 47 $ 69,756 $ 69,803 |
Winter Storm Uri
Winter Storm Uri | 12 Months Ended |
Sep. 30, 2022 | |
Unusual or Infrequent Items, or Both [Abstract] | |
Winter Storm Uri | Winter Storm Uri Overview A historic winter storm impacted supply, market pricing and demand for natural gas in our service territories in mid-February 2021. During this time, the governors of Kansas and Texas each declared a state of emergency, and certain regulatory agencies issued emergency orders that impacted the utility and natural gas industries, including statewide utilities curtailment programs and orders encouraging or requiring jurisdictional natural gas utilities to work to ensure customers were provided with safe and reliable natural gas service. Due to the historic nature of this winter storm, we experienced unforeseeable and unprecedented market pricing for gas costs, which resulted in aggregated natural gas purchases during the month of February of approximately $2.3 billion. These gas costs were paid by the end of March 2021. Incremental Financing As discussed in Note 7 to the consolidated financial statements, on March 9, 2021, we completed a public offering of $2.2 billion in debt securities and the net proceeds from the offering, after the underwriting discount and offering expenses, were used to substantially fund these purchased gas costs. As a result of this unplanned debt issuance, S&P lowered its long-term/short-term credit ratings from A/A-1 to A-/A-2 and placed our ratings under negative outlook. Moody’s reaffirmed its long-term and short-term credit ratings and placed our ratings under negative outlook, which was upgraded to stable in February 2022. These credit rating adjustments and the issuance of unplanned debt did not impact our ability to satisfy our debt covenants. Regulatory Asset Accounting Our purchased gas costs are recoverable through purchased gas cost adjustment mechanisms in each state where we operate. Due to the unprecedented level of purchased gas costs incurred during Winter Storm Uri, the Kansas Corporation Commission (KCC) and the Railroad Commission of Texas (RRC) issued orders authorizing natural gas utilities to record a regulatory asset to account for the extraordinary costs associated with the winter storm. Pursuant to these orders, as of September 30, 2022, we have recorded a $2.1 billion regulatory asset for incremental costs, including carrying costs, incurred in Kansas ($88.5 million) and Texas ($2,021.0 million). Securitization Proceedings To minimize the impact on the customer bill by extending the recovery periods for these unprecedented purchased gas costs, the Kansas and Texas State Legislatures each approved securitization legislation during fiscal 2021. The following summarizes the status of the securitization of each state as of the date of this filing. Kansas The Kansas securitization legislation, which became effective April 9, 2021, permits a natural gas public utility, in its sole discretion, to apply to the KCC for a financing order for the recovery of qualified extraordinary costs through the issuance of bonds. On September 14, 2021, we filed with the KCC an application to securitize $94.1 million of extraordinary gas costs incurred during Winter Storm Uri, which included an estimate of penalties, carrying costs and administrative costs that we expect to incur in connection with the resolution of this filing. On March 24, 2022, the KCC issued an Order Approving Unanimous Settlement Agreement which stipulated that all of our gas and storage costs were prudently incurred. The KCC issued a financing order on October 25, 2022, which authorizes us to securitize, through the issuance of bonds, $118.5 million, which includes the carrying costs and estimated interest related to the securitization over a time period not to exceed 12 years. We expect the issuance of bonds to take place in the second quarter of fiscal 2023. Because we intend to securitize these costs and recover over several years, we have recorded the regulatory asset for Kansas as a long-term asset in deferred charges and other assets as of September 30, 2022. Texas On June 16, 2021, House Bill 1520 became effective. House Bill 1520 authorizes the RRC to issue a statewide securitization financing order directing the Texas Public Finance authority to issue bonds (customer rate relief bonds) for gas utilities that choose to participate to recover extraordinary costs incurred to secure gas supply and to provide service during Winter Storm Uri, and to restore gas utility systems after that event, thereby providing rate relief to customers by extending the period during which these extraordinary costs would otherwise be recovered and supporting the financial strength and stability of gas utility companies. The legislation required natural gas utilities seeking to participate in the securitization program to file an application with the RRC and submit extraordinary gas costs incurred during Winter Storm Uri for a prudency review by July 30, 2021. We filed our application with the RRC on July 30, 2021 to securitize $2.0 billion of extraordinary gas costs incurred during Winter Storm Uri. On November 10, 2021, the RRC issued a Final Determination of the Regulatory Asset (the Final Determination). The Final Determination stipulates that all of our gas and storage costs were prudently incurred. Additionally, the Final Determination permits us to defer, through December 31, 2021 our actual carrying costs associated with the $2.2 billion of incremental financing issued in March 2021 and to recover approximately $0.6 million of our administrative costs. On February 8, 2022, the RRC issued a financing order that authorizes the Texas Public Financing Authority to issue customer rate relief bonds to securitize the costs that were approved in the Final Determination over a period not to exceed 30 years. Upon receipt of the securitization funds we will repay the $2.2 billion in public notes issued to finance the incremental gas costs incurred during Winter Storm Uri. |
Retirement and Postretirement E
Retirement and Postretirement Employee Benefit Plans | 12 Months Ended |
Sep. 30, 2022 | |
Retirement Benefits [Abstract] | |
Retirement and Postretirement Employee Benefit Plans | Retirement and Postretirement Employee Benefit Plans We have both funded and unfunded noncontributory defined benefit plans that together cover most of our employees. We also maintain a postretirement plan that provides health care benefits to retired employees. Finally, we sponsor a defined contribution plan that covers substantially all employees. These plans are discussed in further detail below. As a rate regulated entity, most of our net periodic pension and other postretirement benefits costs are recoverable through our rates over a period of up to 15 years. 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. Additionally, the amounts that have not yet been recognized in net periodic pension cost that have been recorded as regulatory assets or liabilities are as follows: Employee Pension Plan Supplemental Postretirement Total (In thousands) September 30, 2022 Unrecognized prior service credit $ (121) $ — $ (51,079) $ (51,200) Unrecognized actuarial (gain) loss (32,159) 14,029 (87,527) (105,657) $ (32,280) $ 14,029 $ (138,606) $ (156,857) September 30, 2021 Unrecognized prior service credit $ (353) $ — $ (64,313) $ (64,666) Unrecognized actuarial (gain) loss (3,060) 39,666 (28,141) 8,465 $ (3,413) $ 39,666 $ (92,454) $ (56,201) Defined Benefit Plans Employee Pension Plan As of September 30, 2022, we maintained one cash balance defined benefit plan, the Atmos Energy Corporation Pension Account Plan (the Pension Plan). The Pension Plan was established effective January 1999 and covers most of the employees of Atmos Energy that were hired on or before September 30, 2010. Effective October 1, 2010, the Pension Plan was closed to new participants. The assets of the Pension Plan are held within the Atmos Energy Corporation Master Retirement Trust (the Master Trust). Opening account balances were established for participants as of January 1999 equal to the present value of their respective accrued benefits under the pension plans which were previously in effect as of December 31, 1998. The Pension Plan credits an allocation to each participant’s account at the end of each year according to a formula based on the participant’s age, service and total pay (excluding incentive pay). In addition, at the end of each year, a participant’s account is credited with interest on the employee’s prior year account balance. Participants are fully vested in their account balances after three years of service and may choose to receive their account balances as a lump sum or an annuity. Generally, our funding policy is to contribute annually an amount in accordance with the requirements of the Employee Retirement Income Security Act of 1974 (ERISA), including the funding requirements under the Pension Protection Act of 2006 (PPA). However, additional voluntary contributions are made from time to time as considered necessary. Contributions are intended to provide not only for benefits attributed to service to date but also for those expected to be earned in the future. During fiscal 2022 and 2021, we contributed $8.5 million and $10.0 million in cash to the Pension Plan to achieve a desired level of funding while maximizing the tax deductibility of this payment. Based upon market conditions at September 30, 2022, the current funded position of the Pension Plan and the funding requirements under the PPA, we do not anticipate a minimum required contribution for fiscal 2023. However, we may consider whether a voluntary contribution is prudent to maintain certain funding levels. We make investment decisions and evaluate performance of the assets in the Master Trust on a medium-term horizon of at least three To achieve these objectives, we invest the Master Trust’s assets in equity securities, fixed income securities, interests in commingled pension trust funds, other investment assets and cash and cash equivalents. Investments in equity securities are diversified among the market’s various subsectors in an effort to diversify risk and maximize returns. Fixed income securities are invested in investment grade securities. Cash equivalents are invested in securities that either are short term (less than 180 days) or readily convertible to cash with modest risk. The following table presents asset allocation information for the Master Trust as of September 30, 2022 and 2021. Targeted Actual Security Class 2022 2021 Domestic equities 35%-55% 39.7% 44.5% International equities 10%-20% 14.6% 16.9% Fixed income 5%-30% 16.0% 16.0% Company stock 0%-15% 15.3% 10.6% Other assets 0%-20% 14.4% 12.0% At September 30, 2022 and 2021, the Pension Plan held 716,700 shares of our common stock which represented 15.3 percent and 10.6 percent of total Pension Plan assets. These shares generated dividend income for the Pension Plan of approximately $1.9 million and $1.8 million during fiscal 2022 and 2021. Our Pension Plan expenses and liabilities are determined on an actuarial basis and are affected by numerous assumptions and estimates including the market value of plan assets, estimates of the expected return on plan assets and assumed discount rates and demographic data. We review the estimates and assumptions underlying our Pension Plan annually based upon a September 30 measurement date. The development of our assumptions is fully described in our significant accounting policies in Note 2 to the consolidated financial statements. The actuarial assumptions used to determine the pension liability for the Pension Plan was determined as of September 30, 2022 and 2021 and the actuarial assumptions used to determine the net periodic pension cost for the Pension Plan was determined as of September 30, 2021, 2020 and 2019. Additional assumptions are presented in the following table: Pension Pension Cost 2022 2021 2022 2021 2020 Discount rate 5.66 % 2.97 % 2.97 % 2.80 % 3.29 % Rate of compensation increase 3.50 % 3.50 % 3.50 % 3.50 % 3.50 % Expected return on plan assets 6.25 % 6.25 % 6.25 % 6.25 % 6.50 % Interest crediting rate 4.69 % 4.69 % 4.69 % 4.69 % 4.69 % The following table presents the Pension Plan’s accumulated benefit obligation, projected benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Accumulated benefit obligation $ 428,629 $ 558,639 Change in projected benefit obligation: Benefit obligation at beginning of year $ 596,029 $ 604,221 Service cost 16,165 17,369 Interest cost 17,606 16,883 Actuarial gain (141,567) (7,561) Benefits paid (38,706) (34,883) Benefit obligation at end of year 449,527 596,029 Change in plan assets: Fair value of plan assets at beginning of year 596,806 528,881 Actual return on plan assets (87,575) 92,808 Employer contributions 8,500 10,000 Benefits paid (38,706) (34,883) Fair value of plan assets at end of year 479,025 596,806 Reconciliation: Funded status 29,498 777 Unrecognized prior service cost — — Unrecognized net loss — — Net amount recognized $ 29,498 $ 777 Net periodic pension cost for the Pension Plan for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic pension cost: Service cost $ 16,165 $ 17,369 $ 17,551 Interest cost (1) 17,606 16,883 19,028 Expected return on assets (1) (29,531) (27,913) (28,316) Amortization of prior service credit (1) (231) (231) (231) Recognized actuarial loss (1) 4,638 8,686 9,025 Net periodic pension cost $ 8,647 $ 14,794 $ 17,057 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) The following tables set forth by level, within the fair value hierarchy, the Pension Plan's assets at fair value as of September 30, 2022 and 2021. As required by authoritative accounting literature, assets are categorized in their entirety based on the lowest level of input that is significant to the fair value measurement. The methods used to determine fair value for the assets held by the Pension Plan are fully described in Note 2 to the consolidated financial statements. Investments in our common/collective trusts and limited partnerships that are measured at net asset value per share equivalent are not classified in the fair value hierarchy. The net asset value amounts presented are intended to reconcile the fair value hierarchy to the total investments. In addition to the assets shown below, the Pension Plan had net accounts receivable of $2.4 million and $2.1 million at September 30, 2022 and 2021, which materially approximates fair value due to the short-term nature of these assets. Assets at Fair Value as of September 30, 2022 Level 1 Level 2 Level 3 Total (In thousands) Investments: Common stocks $ 210,325 $ — $ — $ 210,325 Money market funds — 14,490 — 14,490 Registered investment companies 53,401 — — 53,401 Government securities: Mortgage-backed securities — 14,175 — 14,175 U.S. treasuries 3,681 28 — 3,709 Corporate bonds — 22,320 — 22,320 Total investments measured at fair value $ 267,407 $ 51,013 $ — 318,420 Investments measured at net asset value: Common/collective trusts (1) 86,891 Limited partnerships (1) 71,331 Total investments $ 476,642 Assets at Fair Value as of September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Investments: Common stocks $ 239,166 $ — $ — $ 239,166 Money market funds — 7,060 — 7,060 Registered investment companies 74,236 — — 74,236 Government securities: Mortgage-backed securities — 14,048 — 14,048 U.S. treasuries 7,483 34 — 7,517 Corporate bonds — 30,834 — 30,834 Total investments measured at fair value $ 320,885 $ 51,976 $ — 372,861 Investments measured at net asset value: Common/collective trusts (1) 121,570 Limited partnerships (1) 100,299 Total investments $ 594,730 (1) The fair value of our common/collective trusts and limited partnerships are measured using the net asset value per share practical expedient. There are no redemption restrictions, redemption notice periods or unfunded commitments for these investments. The redemption frequency is daily. Supplemental Executive Retirement Plans We have three nonqualified supplemental plans (the Supplemental Plans) which provide additional pension, disability and death benefits to our officers and certain other employees of the Company. The Supplemental Executive Benefits Plan (SEBP) covers our corporate officers and certain other employees of the Company who were employed on or before August 12, 1998. The SEBP is a defined benefit arrangement which provides a benefit equal to 75 percent of covered compensation under which benefits paid from the underlying qualified defined benefit plan are an offset to the benefits under the SEBP. In August 1998, we adopted the Supplemental Executive Retirement Plan (SERP) (formerly known as the Performance-Based Supplemental Executive Benefits Plan), which covers all corporate officers selected to participate in the plan between August 12, 1998 and August 5, 2009. The SERP is a defined benefit arrangement which provides a benefit equal to 60 percent of covered compensation under which benefits paid from the underlying qualified defined benefit plan are an offset to the benefits under the SERP. Effective August 5, 2009, we adopted a new defined benefit Supplemental Executive Retirement Plan (the 2009 SERP), for corporate officers or any other employees selected at the discretion of the Board. Under the 2009 SERP, a nominal account has been established for each participant, to which the Company contributes at the end of each calendar year an amount equal to ten percent (25 percent for members of the Management Committee appointed on or after January 1, 2016) of the total of each participant’s base salary and cash incentive compensation earned during each prior calendar year, beginning December 31, 2009. The benefits vest after three years of service and attainment of age 55 and earn interest credits at the same annual rate as the Company’s Pension Plan. During fiscal 2021, we recognized a settlement charge of $9.2 million and paid a $25.7 million lump sum in relation to the retirements of certain executives. We review the estimates and assumptions underlying our Supplemental Plans annually based upon a September 30 measurement date using the same techniques as our Pension Plan. The actuarial assumptions used to determine the pension liability for the Supplemental Plans were determined as of September 30, 2022 and 2021 and the actuarial assumptions used to determine the net periodic pension cost for the Supplemental Plans were determined as of September 30, 2021, 2020 and 2019. These assumptions are presented in the following table: Pension Pension Cost 2022 2021 2022 2021 2020 Discount rate (1) 5.71 % 2.57 % 2.57 % 2.90 % 3.19 % Rate of compensation increase 3.50 % 3.50 % 3.50 % 3.50 % 3.50 % Interest crediting rate 4.69 % 4.69 % 4.69 % 4.69 % 4.69 % ( 1 ) Reflects a weighted average discount rate for pension cost for fiscal 2021 and 2020 due to the settlements during the year. The following table presents the Supplemental Plans’ accumulated benefit obligation, projected benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Accumulated benefit obligation $ 79,233 $ 100,981 Change in projected benefit obligation: Benefit obligation at beginning of year $ 104,301 $ 129,140 Service cost 1,129 1,067 Interest cost 2,647 3,180 Actuarial (gain) loss (22,471) 1,332 Benefits paid (4,831) (4,720) Settlements — (25,698) Benefit obligation at end of year 80,775 104,301 Change in plan assets: Fair value of plan assets at beginning of year — — Employer contribution 4,831 30,418 Benefits paid (4,831) (4,720) Settlements — (25,698) Fair value of plan assets at end of year — — Reconciliation: Funded status (80,775) (104,301) Unrecognized prior service cost — — Unrecognized net loss — — Accrued pension cost $ (80,775) $ (104,301) Assets for the Supplemental Plans are held in separate rabbi trusts. At September 30, 2022 and 2021, assets held in the rabbi trusts consisted of equity securities of $30.2 million and $38.1 million, which are included in our fair value disclosures in Note 16 to the consolidated financial statements. Net periodic pension cost for the Supplemental Plans for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic pension cost: Service cost $ 1,129 $ 1,067 $ 1,074 Interest cost (1) 2,647 3,180 4,188 Recognized actuarial loss (1) 3,166 3,560 3,945 Settlements (1) — 9,151 9,180 Net periodic pension cost $ 6,942 $ 16,958 $ 18,387 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) Estimated Future Benefit Payments The following benefit payments for our defined benefit plans, which reflect expected future service, as appropriate, are expected to be paid in the following fiscal years: Pension Supplemental (In thousands) 2023 $ 40,569 $ 9,995 2024 40,126 9,538 2025 40,396 30,135 2026 41,611 6,594 2027 41,358 3,946 2028-2032 198,156 27,420 Postretirement Benefits Plan We sponsor the Retiree Medical Plan for Retirees and Disabled Employees of Atmos Energy Corporation (the Retiree Medical Plan). This plan provides medical and prescription drug protection to all qualified participants based on their date of retirement. The Retiree Medical Plan provides different levels of benefits depending on the level of coverage chosen by the participants and the terms of predecessor plans; however, we generally pay 80 percent of the projected net claims and administrative costs and participants pay the remaining 20 percent. Effective January 1, 2015, for employees who had not met the participation requirements by September 30, 2009, the contribution rates for the Company were limited to a three percent cost increase in claims and administrative costs each year, with the participant responsible for the additional costs. Effective January 1, 2022, the Retiree Medical Plan was amended to remove the three percent cost increase limitation and change the post-65 retiree coverage to Via Benefits with an Atmos Energy funded Health Reimbursement Account. Eligible post-65 retirees and post-65 spouses will be eligible to enroll in benefits provided by Via Benefits, including those that previously deferred or declined retiree coverage. Generally, our funding policy is to contribute annually an amount in accordance with the requirements of ERISA. However, additional voluntary contributions are made annually as considered necessary. Contributions are intended to provide not only for benefits attributed to service to date but also for those expected to be earned in the future. We expect to contribute between $15 million and $25 million to our Retiree Medical Plan during fiscal 2023. We maintain a formal investment policy with respect to the assets in our Retiree Medical Plan to ensure the assets funding the Retiree Medical Plan are appropriately invested to maintain an acceptable level of risk. We also consider our current financial status when making recommendations and decisions regarding the Retiree Medical Plan. We currently invest the assets funding our Retiree Medical Plan in diversified investment funds which consist of common stocks, preferred stocks and fixed income securities. The diversified investment funds may invest up to 75 percent of assets in common stocks and convertible securities. The following table presents asset allocation information for the Retiree Medical Plan assets as of September 30, 2022 and 2021. Actual Security Class 2022 2021 Diversified investment funds 97.7% 97.9% Cash and cash equivalents 2.3% 2.1% We review the estimates and assumptions underlying our Retiree Medical Plan annually based upon a September 30 measurement date using the same techniques as our Pension Plan and Supplemental Plans. The actuarial assumptions used to determine the pension liability for our Retiree Medical Plan were determined as of September 30, 2022 and 2021 and the actuarial assumptions used to determine the net periodic pension cost for the Retiree Medical Plan were determined as of September 30, 2021, 2020 and 2019. The assumptions are presented in the following table: Postretirement Postretirement Cost 2022 2021 2022 2021 2020 Discount rate 5.61 % 3.01 % 3.01 % 2.80 % 3.29 % Expected return on plan assets 4.94 % 4.94 % 4.94 % 4.94 % 5.14 % Initial trend rate 6.25 % 6.25 % 6.25 % 6.25 % 6.25 % Ultimate trend rate 4.75 % 5.00 % 5.00 % 5.00 % 5.00 % Ultimate trend reached in 2029 2027 2027 2026 2025 The following table presents the Retiree Medical Plan’s benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Change in benefit obligation: Benefit obligation at beginning of year $ 355,156 $ 370,678 Service cost 10,235 11,000 Interest cost 10,734 15,372 Plan participants’ contributions 3,210 5,648 Actuarial (gain) loss (112,748) 6,800 Benefits paid (16,359) (19,610) Plan amendments — (34,732) Benefit obligation at end of year 250,228 355,156 Change in plan assets: Fair value of plan assets at beginning of year 268,199 208,245 Actual return on plan assets (40,113) 53,335 Employer contributions 14,749 20,581 Plan participants’ contributions 3,210 5,648 Benefits paid (16,359) (19,610) Fair value of plan assets at end of year 229,686 268,199 Reconciliation: Funded status (20,542) (86,957) Unrecognized transition obligation — — Unrecognized prior service cost — — Unrecognized net loss — — Accrued postretirement cost $ (20,542) $ (86,957) Net periodic postretirement cost for the Retiree Medical Plan for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic postretirement cost: Service cost $ 10,235 $ 11,000 $ 13,466 Interest cost (1) 10,734 15,372 10,612 Expected return on assets (1) (13,249) (10,455) (10,499) Amortization of prior service (credit) cost (1) (13,234) 30,533 173 Recognized actuarial (gain) loss (1) — 1,172 (1,337) Net periodic postretirement cost $ (5,514) $ 47,622 $ 12,415 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) We are currently recovering other postretirement benefits costs through our regulated rates in substantially all of our service areas under accrual accounting as prescribed by accounting principles generally accepted in the United States. Other postretirement benefits costs have been specifically addressed in rate orders in each jurisdiction served by our Kentucky/Mid-States, West Texas, Mid-Tex and Mississippi Divisions as well as our Kansas jurisdiction and APT or have been included in a rate case and not disallowed. Management believes that this accounting method is appropriate and will continue to seek rate recovery of accrual-based expenses in its ratemaking jurisdictions that have not yet approved the recovery of these expenses. The following tables set forth by level, within the fair value hierarchy, the Retiree Medical Plan’s assets at fair value as of September 30, 2022 and 2021. The methods used to determine fair value for the assets held by the Retiree Medical Plan are fully described in Note 2 to the consolidated financial statements. Assets at Fair Value as of September 30, 2022 Level 1 Level 2 Level 3 Total (In thousands) Investments: Money market funds $ — $ 5,214 $ — $ 5,214 Registered investment companies 224,472 — — 224,472 Total investments measured at fair value $ 224,472 $ 5,214 $ — $ 229,686 Assets at Fair Value as of September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Investments: Money market funds $ — $ 5,527 $ — $ 5,527 Registered investment companies 262,672 — — 262,672 Total investments measured at fair value $ 262,672 $ 5,527 $ — $ 268,199 Estimated Future Benefit Payments The following benefit payments paid by the Company, retirees and prescription drug subsidies for our Retiree Medical Plan, which reflect expected future service, as appropriate, are expected to be paid in the following fiscal years. Company Retiree Subsidy Total (In thousands) 2023 $ 17,141 $ 2,445 $ — $ 19,586 2024 17,409 2,410 — 19,819 2025 17,582 2,314 — 19,896 2026 18,022 2,282 — 20,304 2027 18,269 2,193 — 20,462 2028-2032 94,528 9,638 — 104,166 Defined Contribution Plan The Atmos Energy Corporation Retirement Savings Plan and Trust (the Retirement Savings Plan) covers substantially all employees and is subject to the provisions of Section 401(k) of the Internal Revenue Code. Effective January 1, 2007, employees automatically become participants of the Retirement Savings Plan on the date of employment. Participants may elect a salary reduction up to a maximum of 65 percent of eligible compensation, as defined by the Retirement Savings Plan, not to exceed the maximum allowed by the Internal Revenue Service. New participants are automatically enrolled in the Retirement Savings Plan at a contribution rate of four percent of eligible compensation, from which they may opt out. We match 100 percent of a participant’s contributions, limited to four percent of the participant’s salary. Prior to January 1, 2021, participants were eligible to receive matching contributions after completing one year of service, in which they are immediately vested. Effective January 1, 2021, participants are eligible to receive matching contributions immediately upon enrollment in the Retirement Savings Plan. This matching contribution vests after completing one year of service. Participants are also permitted to take out a loan against their accounts subject to certain restrictions. Employees hired on or after October 1, 2010 participate in the enhanced plan in which participants receive a fixed annual contribution of four percent of eligible earnings to their Retirement Savings Plan account. Participants will continue to be eligible for company matching contributions of up to four percent of their eligible earnings and will be fully vested in the fixed annual contribution after three years of service. Effective October 1, 2022, the Retirement Savings Plan was amended to add a Roth elective deferral feature and to implement an automatic increase feature whereby a participant who contributes less than 10 percent will have their contribution percent increased by one percent annually unless the participant opts out. Matching and fixed annual contributions to the Retirement Savings Plan are expensed as incurred and amounted to $21.9 million, $20.6 million and $17.9 million for fiscal years 2022, 2021 and 2020 . At September 30, 2022 and 2021, the Retirement Savings Plan held 1.6 percent and 1.9 percent of our outstanding common stock. |
Stock and Other Compensation Pl
Stock and Other Compensation Plans | 12 Months Ended |
Sep. 30, 2022 | |
Share-Based Payment Arrangement [Abstract] | |
Stock and Other Compensation Plans | Stock and Other Compensation Plans Stock-Based Compensation Plans Total stock-based compensation cost was $22.2 million, $24.1 million and $21.1 million for the fiscal years ended September 30, 2022, 2021 and 2020. Of this amount, $11.5 million, $12.9 million and $11.6 million was capitalized. 1998 Long-Term Incentive Plan We have the 1998 Long-Term Incentive Plan (LTIP), which provides a comprehensive, long-term incentive compensation plan providing for discretionary awards of incentive stock options, non-qualified stock options, stock appreciation rights, bonus stock, time-lapse restricted stock, time-lapse restricted stock units, performance-based restricted stock units and stock units to certain employees and non-employee directors of the Company and our subsidiaries. The objectives of this plan include attracting and retaining the best available personnel, providing for additional performance incentives and promoting our success by providing employees with the opportunity to acquire common stock. We are authorized to grant awards up to a maximum cumulative amount of 11.2 million shares of common stock under this plan subject to certain adjustment provisions. As of September 30, 2022, non-qualified stock options, bonus stock, time- lapse restricted stock, time-lapse restricted stock units, performance-based restricted stock units and stock units had been issued under this plan, and 0.9 million shares are available for future issuance. Restricted Stock Units Award Grants As noted above, the LTIP provides for discretionary awards of restricted stock units to help attract, retain and reward employees of Atmos Energy and its subsidiaries. Certain of these awards vest based upon the passage of time and other awards vest based upon the passage of time and the achievement of specified performance targets. The fair value of the awards granted is based on the market price of our stock at the date of grant. We estimate forfeitures using our historical forfeiture rate. The associated expense is recognized ratably over the vesting period. We use authorized and unissued shares to meet share requirements for the vesting of restricted stock units. Employees who are granted time-lapse restricted stock units under our LTIP have a nonforfeitable right to dividend equivalents that are paid at the same rate and at the same time at which they are paid on shares of stock without restrictions. Time-lapse restricted stock units contain only a service condition that the employee recipients render continuous services to the Company for a period of three years from the date of grant, except for accelerated vesting in the event of death, disability, change of control of the Company or termination without cause (with certain exceptions). There are no performance conditions required to be met for employees to be vested in time-lapse restricted stock units. Employees who are granted performance-based restricted stock units under our LTIP have a forfeitable right to dividend equivalents that accrue at the same rate at which they are paid on shares of stock without restrictions. Dividend equivalents on the performance-based restricted stock units are paid either in cash or in the form of shares upon the vesting of the award. Performance-based restricted stock units contain a service condition that the employee recipients render continuous services to the Company for a period of three years from the beginning of the applicable three-year performance period, except for accelerated vesting in the event of death, disability, change of control of the Company or termination without cause (with certain exceptions) and a performance condition based on a cumulative earnings per share target amount. The following summarizes information regarding the restricted stock units granted under the plan during the fiscal years ended September 30, 2022, 2021 and 2020: 2022 2021 2020 Number of Weighted Number of Weighted Number of Weighted Nonvested at beginning of year 378,127 $ 102.45 443,279 $ 99.28 503,072 $ 91.66 Granted 179,738 108.07 223,954 102.68 199,985 102.34 Vested (159,019) 100.99 (271,435) 97.44 (242,975) 85.66 Forfeited (17,551) 103.37 (17,671) 101.48 (16,803) 96.87 Nonvested at end of year 381,295 $ 105.69 378,127 $ 102.45 443,279 $ 99.28 As of September 30, 2022, there was $14.1 million of total unrecognized compensation cost related to nonvested restricted stock units granted under the LTIP. That cost is expected to be recognized over a weighted average period of 1.4 years. The fair value of restricted stock vested during the fiscal years ended September 30, 2022, 2021 and 2020 was $16.0 million, $26.3 million and $20.7 million. Other Plans Direct Stock Purchase Plan We maintain a Direct Stock Purchase Plan, open to all investors, which allows participants to have all or part of their cash dividends paid quarterly in additional shares of our common stock. The minimum initial investment required to join the plan is $1,250. Direct Stock Purchase Plan participants may purchase additional shares of our common stock as often as weekly with voluntary cash payments of at least $25, up to an annual maximum of $100,000. Equity Incentive and Deferred Compensation Plan for Non-Employee Directors We have an Equity Incentive and Deferred Compensation Plan for Non–Employee Directors, which provides non-employee directors of Atmos Energy with the opportunity to defer receipt, until retirement, of compensation for services rendered to the Company and invest deferred compensation into either a cash account or a stock account. Other Discretionary Compensation Plans We have an annual incentive program covering substantially all employees to give each employee an opportunity to share in our financial success based on the achievement of key performance measures considered critical to achieving business objectives for a given year with minimum and maximum thresholds. The Company must meet the minimum threshold for the plan to be funded and distributed to employees. These performance measures may include earnings growth objectives, improved cash flow objectives or crucial customer satisfaction and safety results. We monitor progress towards the achievement of the performance measures throughout the year and record accruals based upon the expected payout using the best estimates available at the time the accrual is recorded. During the last several fiscal years, we have used earnings per share as our sole performance measure. |
Details of Selected Consolidate
Details of Selected Consolidated Balance Sheet Captions | 12 Months Ended |
Sep. 30, 2022 | |
Balance Sheet Related Disclosures [Abstract] | |
Details of Selected Consolidated Balance Sheet Captions | Details of Selected Financial Statement Captions The following tables provide additional information regarding the composition of certain financial statement captions. Balance Sheet Accounts receivable Accounts receivable was comprised of the following at September 30, 2022 and 2021: September 30 2022 2021 (In thousands) Billed accounts receivable $ 258,333 $ 218,219 Unbilled revenue 121,518 97,417 Contributions in aid of construction receivable 5,390 18,984 Insurance receivable 13,160 53,779 Other accounts receivable 15,300 19,039 Total accounts receivable 413,701 407,438 Less: allowance for uncollectible accounts (49,993) (64,471) Net accounts receivable $ 363,708 $ 342,967 Other current assets Other current assets as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Deferred gas costs $ 119,742 $ 66,395 Winter Storm Uri incremental costs 2,020,954 2,011,719 Prepaid expenses 58,551 48,766 Taxes receivable 11,911 — Materials and supplies 25,880 15,581 Assets from risk management activities 26,207 55,073 Other 11,245 3,375 Total $ 2,274,490 $ 2,200,909 Property, plant and equipment Property, plant and equipment was comprised of the following as of September 30, 2022 and 2021: September 30 2022 2021 (In thousands) Storage plant $ 589,210 $ 539,972 Transmission plant 4,325,540 3,725,347 Distribution plant 13,511,409 12,085,654 General plant 937,500 868,962 Intangible plant 38,612 38,612 19,402,271 17,258,547 Construction in progress 835,868 626,551 20,238,139 17,885,098 Less: accumulated depreciation and amortization (2,997,900) (2,821,128) Net property, plant and equipment (1) $ 17,240,239 $ 15,063,970 (1) Net property, plant and equipment includes plant acquisition adjustments of $(26.6) million and $(28.5) million at September 30, 2022 and 2021. Deferred charges and other assets Deferred charges and other assets as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Marketable securities $ 96,012 $ 108,071 Regulatory assets (See Note 2) 368,375 351,843 Operating lease right of use assets (See Note 6) 214,663 222,446 Winter Storm Uri incremental costs 88,500 89,009 Assets from risk management activities 355,784 175,613 Pension assets 29,498 — Other 20,968 27,738 Total $ 1,173,800 $ 974,720 Accounts payable and accrued liabilities Accounts payable and accrued liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Trade accounts payable $ 258,506 $ 224,873 Accrued gas payable 157,942 100,699 Accrued liabilities 79,571 97,650 Total $ 496,019 $ 423,222 Other current liabilities Other current liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Customer credit balances and deposits $ 56,016 $ 49,722 Accrued employee costs 47,661 50,517 Deferred gas costs 28,834 52,553 Operating lease liabilities (See Note 6) 38,644 37,688 Accrued interest 59,542 55,164 Liabilities from risk management activities 3,000 5,269 Taxes payable 189,239 160,986 Pension and postretirement liabilities 9,721 4,863 Regulatory cost of removal obligation 80,676 72,823 APT annual adjustment mechanism 18,034 22,694 Regulatory excess deferred taxes (See Note 14) 159,808 155,857 Other 28,982 18,545 Total $ 720,157 $ 686,681 Deferred credits and other liabilities Deferred credits and other liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Pension and postretirement liabilities $ 91,596 $ 185,617 Operating lease liabilities (See Note 6) 184,301 194,745 Customer advances for construction 8,628 9,879 Other regulatory liabilities (See Note 2) 178,990 75,506 Asset retirement obligation 5,737 18,373 Liabilities from risk management activities 1,129 — APT annual adjustment mechanism 13,104 8,416 Unrecognized tax benefits (See Note 14) 39,908 32,792 Other 14,909 12,161 Total $ 538,302 $ 537,489 Statement of Comprehensive Income Other non-operating income (expense) Other non-operating income (expense) for the fiscal years ended September 30, 2022, 2021 and 2020 were comprised of the following accounts. Year Ended September 30 2022 2021 2020 (In thousands) Equity component of AFUDC $ 45,505 $ 32,749 $ 23,493 Performance-based rate program 8,327 6,362 6,771 Pension and other postretirement non-service credit (cost) 8,337 (19,238) (3,189) Interest income 2,781 2,144 2,932 Community support spending (16,357) (14,460) (11,728) Unrealized losses on equity securities (7,737) (860) (4,176) Miscellaneous (7,119) (8,842) (6,932) Total $ 33,737 $ (2,145) $ 7,171 Statement of Cash Flows Supplemental disclosures of cash flow information for the fiscal years ended September 30, 2022, 2021 and 2020 were as follows: Year Ended September 30 2022 2021 2020 (In thousands) Cash Paid (Received) During The Period For: Interest (1) $ 234,297 $ 207,555 $ 194,993 Income taxes $ 15,760 $ 8,199 $ (3,071) Non-Cash Transactions: Capital expenditures included in current liabilities $ 217,868 $ 184,786 $ 113,365 (1) Cash paid during the period for interest, net of amounts capitalized was $98.4 million, $81.9 million and $82.3 million for the fiscal years ended September 30, 2022, 2021 and 2020. |
Commitments and Contingencies
Commitments and Contingencies | 12 Months Ended |
Sep. 30, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments and Contingencies | 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) held a public meeting on January 12, 2021 to determine the probable cause of the incident that occurred at a Dallas, Texas residence on February 23, 2018 that resulted in one fatality and injuries to four other residents. At the meeting, the Board deliberated and voted on proposed findings of fact, a probable cause statement, and safety recommendations. On February 8, 2021, the NTSB issued its final report that included an Executive Summary, Findings, Probable Cause and Recommendations. Also on February 8, 2021, safety recommendations letters were distributed to recommendation recipients, including Atmos Energy. Atmos Energy provided a written response on May 7, 2021. Following the release of the NTSB’s final report, the Railroad Commission of Texas (RRC) completed its safety evaluation related to the same incident finding four alleged violations and initiated an enforcement proceeding to pursue administrative penalties totaling $1.6 million. Atmos Energy is working with the RRC to resolve the alleged violations and satisfy the administrative penalties. On October 26, 2022, the NTSB issued its final report that included Factual Information, Analysis and Probable Cause of a worksite accident that occurred in Farmersville, Texas on June 28, 2021 that resulted in two fatalities and injuries to two others. Three civil actions have been filed in Dallas, Texas against Atmos Energy and one of its contractors in response to the accident. 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 trading hubs or fixed price contracts. At September 30, 2022, we were committed to purchase 55.6 Bcf within one year and 89.1 Bcf within two Rate Regulatory Proceedings As of September 30, 2022, routine rate regulatory proceedings were in progress in some of our service areas, which are discussed in further detail above in the Business — Ratemaking Activity section. |
Income Taxes
Income Taxes | 12 Months Ended |
Sep. 30, 2022 | |
Income Tax Disclosure [Abstract] | |
Income Taxes | Income Taxes Income Tax Expense The components of income tax expense from continuing operations for 2022, 2021 and 2020 were as follows: 2022 2021 2020 (In thousands) Current Federal $ 2,849 $ — $ — State 28,125 252 14,193 Deferred Federal 43,435 128,867 143,039 State (1) 3,101 24,617 (11,879) Income tax expense $ 77,510 $ 153,736 $ 145,353 (1) Includes a non-cash income tax benefit of $21.0 million in fiscal 2020 resulting from the remeasurement of the rate at which state deferred taxes will reverse in the future as discussed below. Reconciliations of the provision for income taxes computed at the statutory rate of 21 percent to the reported provisions for income taxes from continuing operations for 2022, 2021 and 2020 are set forth below: 2022 2021 2020 (In thousands) Tax at statutory rate $ 178,901 $ 172,053 $ 156,827 Common stock dividends deductible for tax reporting (1,355) (1,372) (1,419) State taxes (net of federal benefit) 24,669 19,647 22,791 Amortization of excess deferred taxes (127,193) (45,382) (16,125) Remeasurement due to state deferred tax rate change — — (20,962) Other, net 2,488 8,790 4,241 Income tax expense $ 77,510 $ 153,736 $ 145,353 Deferred income taxes reflect the tax effect of differences between the basis of assets and liabilities for book and tax purposes. The tax effect of temporary differences that gave rise to significant components of the deferred tax liabilities and deferred tax assets at September 30, 2022 and 2021 are presented below: 2022 2021 (In thousands) Deferred tax assets: Employee benefit plans $ 57,094 $ 64,316 Net operating loss carryforwards 485,061 911,424 Charitable and other credit carryforwards 1,903 7,712 Regulatory excess deferred tax 110,548 148,200 Lease asset 50,007 52,138 Other 44,035 33,591 Total deferred tax assets 748,648 1,217,381 Valuation allowance (523) (663) Net deferred tax assets 748,125 1,216,718 Deferred tax liabilities: Difference in net book value and net tax value of assets (2,431,757) (2,258,264) Gas cost adjustments (43,964) (26,413) Winter Storm Uri regulatory asset (20,710) (471,025) Lease liability (50,007) (52,138) Rate deferral adjustment (49,309) (47,445) Interest rate agreements (106,820) (20,156) Other (45,063) (47,086) Total deferred tax liabilities (2,747,630) (2,922,527) Net deferred tax liabilities $ (1,999,505) $ (1,705,809) We deduct our purchased gas costs for federal income tax purposes in the period they are paid. As a result of impacts from Winter Storm Uri, we recorded a $471.0 million (tax effected) increase in our deferred tax liability and an increase in our net operating loss carryforward as of September 30, 2021. As a result of the financing order issued by the Texas RRC on February 8, 2022, we reduced the deferred tax liability associated with the Winter Storm Uri regulatory asset and the corresponding deferred tax asset associated with net operating loss carry forwards by $450.3 million during fiscal 2022. At September 30, 2022, we had $441.3 million (tax effected) of federal net operating loss carryforwards. The federal net operating loss carryforwards are available to offset future taxable income and have no expiration date. The Company has no charitable contribution carryforwards to offset future taxable income as of September 30, 2022. The Company also has $43.8 million (tax effected) of state net operating loss carryforwards (net of $11.4 million of federal effects) and $1.9 million of state tax credits carryforwards (net of $0.5 million of federal effects). Depending on the jurisdiction in which the state net operating loss was generated, the carryforwards expiration period begins in fiscal 2026. At September 30, 2022, we had recorded liabilities associated with unrecognized tax benefits totaling $52.7 million, which includes $12.8 million in deferred tax liabilities. The following table reconciles the beginning and ending balance of our unrecognized tax benefits: 2022 2021 2020 (In thousands) Unrecognized tax benefits - beginning balance $ 32,792 $ 30,921 $ 27,716 Increase (decrease) resulting from prior period tax positions (721) 671 (26) Increase resulting from current period tax positions 20,612 1,200 3,231 Unrecognized tax benefits - ending balance 52,683 32,792 30,921 Less: deferred federal and state income tax benefits (11,063) (6,886) (6,493) Total unrecognized tax benefits that, if recognized, would impact the effective income tax rate as of the end of the year $ 41,620 $ 25,906 $ 24,428 The Company recognizes interest accrued related to unrecognized tax benefits in interest expense and penalties included within interest charges in our consolidated statements of comprehensive income. During the years ended September 30, 2022, 2021 and 2020, the Company recognized approximately $1.3 million, $1.4 million and $0.7 million in interest and penalties. The Company had approximately $11.7 million, $10.4 million and $8.2 million for the payment of interest and penalties accrued at September 30, 2022, 2021 and 2020. We file income tax returns in the U.S. federal jurisdiction as well as in various states where we have operations. We have concluded substantially all U.S. federal income tax matters through fiscal year 2009 and concluded substantially all Texas income tax matters through fiscal year 2010. 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) and a Kansas legislative change enacted in fiscal 2020. As of September 30, 2022 and 2021, $159.8 million and $155.9 million is recorded in other current liabilities. Currently, the regulatory excess net deferred tax liability is being returned over various periods. Of this amount, $404.2 million, is being returned to customers over 35 - 60 months. An additional $78.4 million is being returned to customers on a provisional basis over 15 - 69 years until our regulators establish the final refund periods. The refund of the remaining $15.1 million will be addressed in future rate proceedings. |
Financial Instruments
Financial Instruments | 12 Months Ended |
Sep. 30, 2022 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Financial Instruments | Financial Instruments We currently use financial instruments to mitigate commodity price risk and interest rate risk. Our financial instruments do not contain any credit-risk-related or other contingent features that could cause accelerated payments when our financial instruments are in net liability positions. 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. In jurisdictions where we are permitted to mitigate commodity price risk through financial instruments, the relevant regulatory authorities may establish the level of heating season gas purchases that can be hedged. Our distribution gas supply department is responsible for executing this segment’s commodity risk management activities in conformity with regulatory requirements. Historically, if the regulatory authority does not establish this level, we seek to hedge between 25 and 50 percent of anticipated heating season gas purchases using financial instruments. For the 2021-2022 heating season (generally October through March), in the jurisdictions where we are permitted to utilize financial instruments, we hedged approximately 42 percent, or approximately 23.9 Bcf of the winter flowing gas requirements at a weighted average cost of approximately $3.67 per Mcf. 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 September 30, 2022. These swaps were designated as cash flow hedges at the time the agreements were executed. Planned Debt Issuance Date Amount Hedged (In thousands) Fiscal 2024 $ 450,000 Fiscal 2025 600,000 Fiscal 2026 300,000 $ 1,350,000 Quantitative Disclosures Related to Financial Instruments The following tables present detailed information concerning the impact of financial instruments on our consolidated balance sheet and statements of comprehensive income. As of September 30, 2022, 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 September 30, 2022, we had 14,335 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 September 30, 2022 and 2021. As discussed in Note 2 to the consolidated financial statements, we report our financial instruments as risk management assets and liabilities, each of which is classified as current or noncurrent based upon the anticipated settlement date of the underlying financial instrument. The gross amounts of recognized assets and liabilities are netted within our consolidated balance sheets to the extent that we have netting arrangements with the counterparties. However, as of September 30, 2022 and 2021, no gross amounts and no cash collateral were netted within our consolidated balance sheet. Balance Sheet Location Assets Liabilities (In thousands) September 30, 2022 Designated As Hedges: Interest rate contracts Deferred charges and other assets / $ 355,075 $ — Total 355,075 — Not Designated As Hedges: Commodity contracts Other current assets / 26,207 (3,000) Commodity contracts Deferred charges and other assets / 709 (1,129) Total 26,916 (4,129) Gross / Net Financial Instruments $ 381,991 $ (4,129) Balance Sheet Location Assets Liabilities (In thousands) September 30, 2021 Designated As Hedges: Interest rate contracts Deferred charges and other assets / $ 169,469 $ — Total 169,469 — Not Designated As Hedges: Commodity contracts Other current assets / 55,073 (5,269) Commodity contracts Deferred charges and other assets / 6,144 — Total 61,217 (5,269) Gross / Net Financial Instruments $ 230,686 $ (5,269) 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 designate as cash flow hedges at the time the agreements were executed. The net loss on settled interest rate agreements reclassified from AOCI into interest charges on our consolidated statements of comprehensive income for the years ended September 30, 2022, 2021 and 2020 was $3.8 million, $5.9 million and $5.5 million. The following table summarizes the gains and losses arising from hedging transactions that were recognized as a component of other comprehensive income, net of taxes, for the years ended September 30, 2022 and 2021. Fiscal Year Ended 2022 2021 (In thousands) Increase in fair value: Interest rate agreements $ 296,875 $ 123,017 Recognition of losses in earnings due to settlements: Interest rate agreements 2,976 4,566 Total other comprehensive income from hedging, net of tax $ 299,851 $ 127,583 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 September 30, 2022, we had $94.1 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 2053. However, the table below does not include the expected recognition in earnings of our outstanding interest rate agreements as those financial instruments have not yet settled. Interest Rate (In thousands) 2023 $ 2,120 2024 2,120 2025 2,120 2026 2,120 2027 2,120 Thereafter 83,547 Total $ 94,147 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 statements 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. |
Fair Value Measurements
Fair Value Measurements | 12 Months Ended |
Sep. 30, 2022 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | 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, accounts receivable and accounts payable 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. Fair value measurements also apply to the valuation of our pension and postretirement plan assets. The fair value of these assets is presented in Note 10 to the consolidated financial statements. Quantitative Disclosures Financial Instruments The classification of our fair value measurements requires judgment regarding the degree to which market data are observable or corroborated by observable market data. 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 September 30, 2022 and 2021. As required under authoritative accounting literature, assets and liabilities are categorized in their entirety based on the lowest level of input that is significant to the fair value measurement. Quoted Significant Other Observable Inputs (Level 2) (1) Significant Netting and September 30, 2022 (In thousands) Assets: Financial instruments $ — $ 381,991 $ — $ — $ 381,991 Debt and equity securities Registered investment companies 26,367 — — — 26,367 Bond mutual funds 32,367 — — — 32,367 Bonds (2) — 33,433 — — 33,433 Money market funds — 3,845 — — 3,845 Total debt and equity securities 58,734 37,278 — — 96,012 Total assets $ 58,734 $ 419,269 $ — $ — $ 478,003 Liabilities: Financial instruments $ — $ 4,129 $ — $ — $ 4,129 Quoted Significant Other Observable Inputs (Level 2) (1) Significant Netting and September 30, 2021 (In thousands) Assets: Financial instruments $ — $ 230,686 $ — $ — $ 230,686 Debt and equity securities Registered investment companies 35,175 — — — 35,175 Bond mutual funds 34,298 — — — 34,298 Bonds (2) — 35,655 — — 35,655 Money market funds — 2,943 — — 2,943 Total debt and equity securities 69,473 38,598 — — 108,071 Total assets $ 69,473 $ 269,284 $ — $ — $ 338,757 Liabilities: Financial instruments $ — $ 5,269 $ — $ — $ 5,269 (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 which 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. 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 September 30, 2022, no allowance for credit losses was recorded for our available-for-sale debt securities. At September 30, 2022 and 2021, the amortized cost of our available-for-sale debt securities was $34.1 million and $35.6 million. At September 30, 2022 we maintained investments in bonds that have contractual maturity dates ranging from October 2022 through September 2026. Other Fair Value Measures In addition to the financial instruments above, we have several financial and nonfinancial assets and liabilities subject to fair value measures. These financial assets and liabilities include cash and cash equivalents, accounts receivable, accounts payable, finance leases and debt, which are recorded at carrying value. The nonfinancial assets and liabilities include asset retirement obligations and pension and postretirement plan assets. For cash and cash equivalents, accounts receivable, accounts payable and finance leases we consider carrying value to materially approximate fair value due to the short-term nature of these assets and liabilities. 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 following table presents the carrying value and fair value of our long-term debt, excluding finances leases, debt issuance costs and original issue premium or discount, as of September 30, 2022: September 30, 2022 (In thousands) Carrying Amount $ 7,960,000 Fair Value $ 6,918,843 |
Concentration of Credit Risk
Concentration of Credit Risk | 12 Months Ended |
Sep. 30, 2022 | |
Risks and Uncertainties [Abstract] | |
Concentration of Credit Risk | Concentration of Credit RiskCredit risk is the risk of financial loss to us if a customer fails to perform its contractual obligations. We engage in transactions for the purchase and sale of products and services with major companies in the energy industry and with industrial, commercial, residential and municipal energy consumers. These transactions principally occur in the southern and midwestern regions of the United States. We believe that this geographic concentration does not contribute significantly to our overall exposure to credit risk. Credit risk associated with trade accounts receivable for the distribution segment is mitigated by the large number of individual customers and the diversity in our customer base. The credit risk for our pipeline and storage segment is not significant. |
Summary of Significant Accoun_2
Summary of Significant Accounting Policies (Policies) | 12 Months Ended |
Sep. 30, 2022 | |
Accounting Policies [Abstract] | |
Principles of consolidation | Principles of consolidation — The accompanying consolidated financial statements include the accounts of Atmos Energy Corporation and its wholly-owned subsidiaries. All material intercompany transactions have been eliminated; however, we have not eliminated intercompany profits when such amounts are probable of recovery under the affiliates’ rate regulation process. |
Use of estimates | Use of estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. The most significant estimates include the allowance for doubtful accounts, unbilled revenues, contingency accruals, pension and postretirement obligations, deferred income taxes, impairment of long-lived assets, risk management and trading activities, fair value measurements and the valuation of goodwill and other long-lived assets. Actual results could differ from those estimates. |
Regulation | Regulation — Our distribution and pipeline and storage operations are subject to regulation with respect to rates, service, maintenance of accounting records and various other matters by the respective regulatory authorities in the states in which we operate. Our accounting policies recognize the financial effects of the ratemaking and accounting practices and policies of the various regulatory commissions. 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. The amounts to be recovered or recognized are based upon historical experience and our understanding of the regulations. Further, regulation may impact the period in which revenues or expenses are recognized. 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 |
Revenue recognition | Revenue recognition Distribution Revenues Distribution revenues represent the delivery of natural gas to residential, commercial, industrial and public authority customers at prices based on tariff rates established by regulatory authorities in the states in which we operate. Revenue is recognized and our performance obligation is satisfied over time when natural gas is delivered and simultaneously consumed by our customers. We have elected to use the invoice practical expedient and recognize revenue for volumes delivered that we have the right to invoice our customers. We bill our customers on a monthly cycle basis. Accordingly, we estimate volumes from the last meter read to the balance sheet date and accrue revenue for gas delivered but not yet billed. In our Texas and Mississippi jurisdictions, we pay franchise fees and gross receipt taxes to operate in these service areas. These franchise fees and gross receipts taxes are required to be paid regardless of our ability to collect from our customers. Accordingly, we account for these amounts on a gross basis in revenue and we record the associated tax expense as a component of taxes, other than income. Pipeline and Storage Revenues Pipeline and storage revenues primarily represent the transportation and storage of natural gas on our APT system and the transmission of natural gas through our 21-mile pipeline in Louisiana. APT provides transportation and storage services to our |
Revenue recognition for alternative revenue programs | Alternative Revenue Program Revenues In our distribution segment, we have weather-normalization adjustment mechanisms that serve to minimize the effects of weather on our residential and commercial revenues. Additionally, 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 of $69.4 million that was established in its most recent rate case. Differences between actual revenues and revenues calculated under these mechanisms adjust the amount billed to customers. These mechanisms are considered to be alternative revenue programs under accounting standards generally accepted in the United States as they are deemed to be contracts between us and our regulator. Accordingly, revenue under these mechanisms are excluded from revenue from contracts with customers. |
Purchased gas costs | Purchased gas costs — Rates established by regulatory authorities are adjusted for increases and decreases in our purchased gas costs through purchased gas cost adjustment mechanisms. There is no margin generated through purchased gas cost adjustments, but they provide a dollar-for-dollar offset to increases or decreases in our distribution segment’s gas costs. The effects of these purchased gas cost adjustment mechanisms are recorded as deferred gas costs on our consolidated balance sheets. |
Cash and cash equivalents | Cash and cash equivalents — We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. |
Accounts receivable and allowance for uncollectible accounts | 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. The receivable balances are short term and generally do not extend beyond one month. On October 1, 2020, we adopted new accounting guidance which requires credit losses on our accounts receivable to be measured using an expected credit loss model over the entire contractual term from the date of initial recognition. To minimize credit risk, we assess the credit worthiness of new customers, require deposits where necessary, assess late fees, pursue collection activities and disconnect service for nonpayment. After disconnection, accounts are written off when deemed uncollectible. At each reporting period, we assess the allowance for uncollectible accounts based on historical experience, current conditions and consideration of expected future conditions. Circumstances which could affect our estimates include, but are not limited to, customer credit issues, the level of natural gas prices, customer deposits and general economic conditions. |
Gas stored underground | Gas stored underground — Our gas stored underground is comprised of natural gas injected into storage to support the winter season withdrawals for our distribution operations. The average cost method is used for all of our distribution operations. Gas in storage that is retained as cushion gas to maintain reservoir pressure is classified as property, plant and equipment and is valued at cost. |
Property, plant and equipment | Property, plant and equipment — Regulated property, plant and equipment is stated at original cost, net of contributions in aid of construction. The cost of additions includes direct construction costs, payroll related costs (taxes, the service cost portion of pension expense and other benefits), administrative and general costs and an allowance for funds used during construction (AFUDC). AFUDC represents the capitalizable total cost of funds used to finance the construction of major projects. Major renewals, including replacement pipe, and betterments that are recoverable through our regulatory rate base are capitalized while the costs of maintenance and repairs that are not capitalizable are charged to expense as incurred. The costs of large projects are accumulated in construction in progress until the project is completed. When the project is completed, tested and placed in service, the balance is transferred to the regulated plant in service account included in the rate base and depreciation begins. Regulated property, plant and equipment is depreciated at various rates on a straight-line basis. These rates are approved by our regulatory commissions and are comprised of two components: one based on average service life and one based on cost of removal. Accordingly, we recognize our cost of removal expense as a component of depreciation expense. The related cost of removal accrual is reflected as a regulatory liability on the consolidated balance sheet. At the time property, plant and equipment is retired, removal expenses less salvage, are charged to the regulatory cost of removal accrual. The composite depreciation rate was 3.0 percent for the fiscal years ended September 30, 2022, 2021 and 2020. Other property, plant and equipment is stated at cost. Depreciation is generally computed on the straight-line method for financial reporting purposes based upon estimated useful lives. |
Asset retirement obligations | Asset retirement obligations — We record a liability at fair value for an asset retirement obligation when the legal obligation to retire the asset has been incurred with an offsetting increase to the carrying value of the related asset. We believe we have a legal obligation to retire our natural gas storage facilities. However, we have not recognized an asset retirement obligation associated with our storage facilities because we are not able to determine the settlement date of this obligation as we do not anticipate taking our storage facilities out of service permanently. Therefore, we cannot reasonably estimate the fair value of this obligation. |
Impairment of long-lived assets | Impairment of long-lived assets — We evaluate whether events or circumstances have occurred that indicate that other long-lived assets may not be recoverable or that the remaining useful life may warrant revision. When such events or circumstances are present, we assess the recoverability of long-lived assets by determining whether the carrying value will be recovered through the expected future cash flows. In the event the sum of the expected future cash flows resulting from the use of the asset is less than the carrying value of the asset, an impairment loss equal to the excess of the asset’s carrying value over its fair value is recorded. |
Goodwill | Goodwill — We annually evaluate our goodwill balances for impairment during our second fiscal quarter or more frequently as impairment indicators arise. During the second quarter of fiscal 2022, we completed our annual goodwill impairment assessment. We test goodwill for impairment 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. Although not applicable for the fiscal 2022 analysis, if a qualitative goodwill assessment resulted in impairment indicators, we would then use a present value technique based on discounted cash flows to estimate the fair value of our reporting units. These calculations are dependent on several subjective factors including the timing of future cash flows, future growth rates and the discount rate. An impairment charge is recognized if the carrying value of a reporting unit’s goodwill exceeds its fair value. |
Lease accounting | Lease accounting — We adopted the provisions of the new lease accounting standard beginning on October 1, 2019. Results for reporting periods beginning on October 1, 2019 are presented under the new lease accounting standard and prior periods are presented under the former lease accounting standard. Upon adoption, we recorded right of use (ROU) assets and lease liabilities within the consolidated balance sheet. We determine if an arrangement is a lease at the inception of the agreement based on the terms and conditions in the contract. A contract contains a lease if there is an identified asset and we have the right to control the asset. We are the lessee for substantially all of our leasing activities, which primarily includes operating leases for office and warehouse space, tower space, vehicles and heavy equipment used in our operations. We are also a lessee in finance leases for certain service centers. We record a lease liability and a corresponding ROU asset for all of our leases with a term greater than 12 months. For lease contracts containing renewal and termination options, we include the option period in the lease term when it is reasonably certain the option will be exercised. We most frequently assume renewal options at the inception of the arrangement for our tower and fleet leases, based on our anticipated use of the assets. Real estate leases that contain a renewal option are evaluated on a lease-by-lease basis to determine if the option period should be included in the lease term. Currently, we have not included material renewal options for real estate leases in our ROU asset or lease liability. The lease liability represents the present value of all lease payments over the lease term. We do not include short-term leases in the calculation of our lease liabilities. The discount rate used to determine the present value of the lease liability is the rate implicit in the lease unless that rate cannot be readily determined. We use the implicit rate stated in the agreement to determine the lease liability for our fleet leases. We use our corporate collateralized incremental borrowing rate as the discount rate for all other lease agreements. This rate is appropriate because we believe it represents the rate we would have incurred to borrow funds to acquire the leased asset over a similar term. We calculated this rate using a combination of inputs, including our current credit rating, quoted market prices of interest rates for our publicly traded unsecured debt, observable market yield curve data for peer companies with a credit rating one notch higher than our current credit rating and the lease term. The ROU asset represents the right to use the underlying asset for the lease term, and is equal to the lease liability, adjusted for prepaid or accrued lease payments and any lease incentives that have been paid to us or when we are reasonably certain to incur costs equal to or greater than the allowance defined in the contract. We bundle our lease and non-lease components as a single component for all asset classes. Variable payments included in our leasing arrangements are expensed in the period in which the obligation for these payments is incurred. Variable payments are dependent on usage, output or may vary for other reasons. Most of our variable lease expense is related to tower leases that have escalating payments based on changes to a stated CPI index, and usage of certain office equipment. We have not provided material residual value guarantees for our leases, nor do our leases contain material restrictions or covenants. |
Marketable securities | Marketable securities — As of September 30, 2022, we hold marketable securities classified as either equity or debt securities. Changes in fair value of our equity securities are recorded in net income, while debt securities, which are considered available-for-sale securities, are reported at market value with unrealized gains and losses shown as a component of accumulated other comprehensive income (loss). On October 1, 2020, we adopted new accounting guidance that introduced an impairment recognition model for available-for-sale debt securities that requires credit losses to be recorded through an allowance account. We regularly evaluate the performance of our available-for-sale debt securities on an investment by investment basis for impairment, taking into consideration the securities’ purpose, volatility and current returns. If a determination is made that a security will likely be sold before the recovery of its cost, the related investment is written down to its estimated fair value. |
Financial instruments and hedging activities | Financial instruments and hedging activities — We use financial instruments to mitigate commodity price risk in our distribution and pipeline and storage segments and to mitigate interest rate risk. The objectives and strategies for using financial instruments have been tailored to our business and are discussed in Note 15 to the consolidated financial statements. We record all of our financial instruments on the balance sheet at fair value , with the exception of normal purchases and normal sales that are expected to result in physical delivery, with changes in fair value ultimately recorded in the statement of comprehensive income. These financial instruments are reported as risk management assets and liabilities and are classified as current or noncurrent other assets or liabilities based upon the anticipated settlement date of the underlying financial instrument. We record the cash flow impact of our financial instruments in operating cash flows based upon their balance sheet classification. The timing of when changes in fair value of our financial instruments are recorded in the statement of comprehensive income depends on whether the financial instrument has been designated and qualifies as a part of a hedging relationship or if regulatory rulings require a different accounting treatment. Changes in fair value for financial instruments that do not meet one of these criteria are recognized in the statement of comprehensive income as they occur. Financial Instruments Associated with Commodity Price Risk In our distribution segment, the costs associated with and the realized gains and losses arising from the use of financial instruments to mitigate commodity price risk are included in our purchased gas cost adjustment mechanisms in accordance with regulatory requirements. Therefore, changes in the fair value of these financial instruments are initially recorded as a component of deferred gas costs and recognized in the consolidated statements of comprehensive income as a component of purchased gas cost when the related costs are recovered through our rates and recognized in revenue in accordance with accounting principles generally accepted in the United States. Accordingly, there is no earnings impact on our distribution segment as a result of the use of these financial instruments. Financial Instruments Associated with Interest Rate Risk In connection with the planned issuance of long-term debt, we may use financial instruments to manage interest rate risk. We currently manage this risk through the use of forward starting interest rate swaps to fix the Treasury yield component of the interest cost associated with anticipated financings. We designate these financial instruments as cash flow hedges at the time the agreements are executed. Unrealized gains and losses associated with the instruments are recorded as a component of accumulated other comprehensive income (loss). When the instruments settle, the realized gain or loss is recorded as a component of accumulated other comprehensive income (loss) and recognized as a component of interest charges over the life of the related financing arrangement. As of September 30, 2022 and 2021, no cash was required to be held in margin accounts. |
Fair Value Measurements | 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 primarily use quoted market prices and other observable market pricing information in valuing our financial assets and liabilities and minimize the use of unobservable pricing inputs in our measurements. Fair-value estimates also consider our own creditworthiness and the creditworthiness of the counterparties involved. Our counterparties consist primarily of financial institutions and major energy companies. This concentration of counterparties may materially impact our exposure to credit risk resulting from market, economic or regulatory conditions. We seek to minimize counterparty credit risk through an evaluation of their financial condition and credit ratings and the use of collateral requirements under certain circumstances. Amounts reported at fair value are subject to potentially significant volatility based upon changes in market prices, including, but not limited to, the valuation of the portfolio of our contracts, maturity and settlement of these contracts and newly originated transactions and interest rates, each of which directly affect the estimated fair value of our financial instruments. We believe the market prices and models used to value these financial instruments represent the best information available with respect to closing exchange and over-the-counter quotations, time value and volatility factors underlying the contracts. Values are adjusted to reflect the potential impact of an orderly liquidation of our positions over a reasonable period of time under then current market conditions. 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) and the lowest priority given to unobservable inputs (Level 3). The levels of the hierarchy are described below: Level 1 — Represents unadjusted quoted prices in active markets for identical assets or liabilities. An active market for the asset or liability is defined as a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis. Prices actively quoted on national exchanges are used to determine the fair value of most of our assets and liabilities recorded on our balance sheet at fair value. Our Level 1 measurements consist primarily of our debt and equity securities. The Level 1 measurements for investments in the Atmos Energy Corporation Master Retirement Trust (the Master Trust), Supplemental Executive Benefit Plan and postretirement benefit plan consist primarily of exchange-traded financial instruments. Level 2 — Represents pricing inputs other than quoted prices included in Level 1 that are either directly or indirectly observable for the asset or liability as of the reporting date. These inputs are derived principally from, or corroborated by, observable market data. Our Level 2 measurements primarily consist of non-exchange-traded financial instruments, such as over-the-counter options and swaps and municipal and corporate bonds where market data for pricing is observable. The Level 2 measurements for investments in our Master Trust, Supplemental Executive Benefit Plan and postretirement benefit plan consist primarily of non-exchange traded financial instruments such as corporate bonds and government securities. Level 3 — Represents generally unobservable pricing inputs which are developed based on the best information available, including our own internal data, in situations where there is little if any market activity for the asset or liability at the measurement date. The pricing inputs utilized reflect what a market participant would use to determine fair value. We currently do not have any Level 3 investments. |
Pension and other postretirement plans | Pension and other postretirement plans — Pension and other postretirement plan costs and liabilities are determined on an actuarial basis and are affected by numerous assumptions and estimates including the market value of plan assets, estimates of the expected return on plan assets, assumed discount rates and current demographic and actuarial mortality data. Our measurement date is September 30. The assumed discount rate and the expected return are the assumptions that generally have the most significant impact on our pension costs and liabilities. The assumed discount rate, the assumed health care cost trend rate and assumed rates of retirement generally have the most significant impact on our postretirement plan costs and liabilities. The discount rate is utilized principally in calculating the actuarial present value of our pension and postretirement obligation and net pension and postretirement cost. When establishing our discount rate, we consider high quality corporate bond rates based on bonds available in the marketplace that are suitable for settling the obligations, changes in those rates from the prior year and the implied discount rate that is derived from matching our projected benefit disbursements with currently available high quality corporate bonds. The expected long-term rate of return on assets is utilized in calculating the expected return on plan assets component of the annual pension and postretirement plan cost. We estimate the expected return on plan assets by evaluating expected bond returns, equity risk premiums, asset allocations, the effects of active plan management, the impact of periodic plan asset rebalancing and historical performance. We also consider the guidance from our investment advisors when making a final determination of our expected rate of return on assets. To the extent the actual rate of return on assets realized over the course of a year is greater than or less than the assumed rate, that year’s annual pension or postretirement plan cost is not affected. Rather, this gain or loss is amortized over the expected future working lifetime of the plan participants. The expected return on plan assets is then calculated by applying the expected long-term rate of return on plan assets to the market-related value of the plan assets. The market-related value of our plan assets represents the fair market value of the plan assets, adjusted to smooth out short-term market fluctuations over a five-year period. The use of this calculation will delay the impact of current market fluctuations on the pension expense for the period. We use a corridor approach to amortize actuarial gains and losses. Under this approach, net gains or losses in excess of ten percent of the larger of the pension benefit obligation or the market-related value of the assets are amortized on a straight-line basis. The period of amortization is the average remaining service of active participants who are expected to receive benefits under the plan. We estimate the assumed health care cost trend rate used in determining our annual postretirement net cost based upon our actual health care cost experience, the effects of recently enacted legislation and general economic conditions. Our assumed rate of retirement is estimated based upon the annual review of our participant census information as of the measurement date. We present only the current service cost component of the net benefit cost within operations and maintenance expense in the consolidated statements of comprehensive income. The remaining components of net benefit cost are recorded in other non-operating income (expense) in our consolidated statements of comprehensive income. Only the service cost component of net benefit cost is eligible for capitalization and we continue to capitalize these costs into property, plant and equipment. Additionally, we defer into a regulatory asset the portion of non-service components of net periodic benefit cost that are capitalizable for regulatory purposes. |
Income taxes | Income taxes — Income taxes are determined based on the liability method, which results in income tax assets and liabilities arising from temporary differences. Temporary differences are differences between the tax bases of assets and liabilities and their reported amounts in the financial statements that will result in taxable or deductible amounts in future years. The liability method requires the effect of tax rate changes on accumulated deferred income taxes to be reflected in the period in which the rate change was enacted. The liability method also requires that deferred tax assets be reduced by a valuation allowance unless it is more likely than not that the assets will be realized. The Company may recognize the tax benefit from uncertain tax positions only if it is at least more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon settlement with the taxing authorities. We recognize accrued interest related to unrecognized tax benefits as a component of interest charges. We recognize penalties related to unrecognized tax benefits as a component of miscellaneous income (expense) in accordance with regulatory requirements. |
Tax collections | Tax collections — We are allowed to recover from customers revenue-related taxes that are imposed upon us. We record such taxes as operating expenses and record the corresponding customer charges as operating revenues. However, we do collect and remit various other taxes on behalf of various governmental authorities, and we record these amounts in our consolidated balance sheets on a net basis. We do not collect income taxes from our customers on behalf of governmental authorities. |
Contingencies | Contingencies — In the normal course of business, we are confronted with issues or events that may result in a contingent liability. These generally relate to lawsuits, claims made by third parties or the action of various regulatory agencies. For such matters, we record liabilities when they are considered probable and estimable, based on currently available facts and our estimates of the ultimate outcome or resolution of the liability in the future. We maintain liability insurance for various risks associated with the operation of our natural gas pipelines and facilities, including for property damage and bodily injury. These liability insurance policies generally require us to be responsible for the first $1.0 million (self-insured retention) of each incident. To the extent a loss contingency exceeds the self-insurance retention, we record an insurance receivable when |
Recent accounting pronouncements | Recent accounting pronouncements Accounting pronouncements adopted in fiscal 2022 In November 2021, the Financial Accounting Standards Board (FASB) issued guidance which will require disclosure about government assistance in the notes to the financial statements. The amendment requires annual disclosures about transactions with a government that are accounted for by applying a grant or contribution accounting model by analogy, including information about the nature of the transactions and the related accounting policy used to account for the transactions, the line items on the balance sheet and income statement that are affected by the transactions and the significant terms and conditions of the transactions, including commitments and contingencies. The amendment was effective for us beginning October 1, 2022; however, we elected to adopt this amendment during the first quarter of fiscal 2022 as permitted by the guidance. As the guidance is related only to disclosures in the notes to the financial statements, there was no impact on our financial position, results of operations or cash flows. In March 2020, the FASB issued optional guidance which will ease the potential burden in accounting for recognizing the effects of reference rate reform on financial reporting. The amendments provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by the cessation of the London Interbank Offered Rate (LIBOR). As discussed in Note 7, on March 31, 2022, we amended and restated our $1.5 billion credit facility and our $900 million unsecured revolving credit agreement which, among other things, included amending the interest rate provisions applicable to borrowings under this agreement to utilize the secured overnight financing rate as the reference rate, rather than LIBOR. In addition, we have evaluated the temporary expedients and options available under this guidance and identified the financial instruments to which the expedients could be applied, if deemed necessary. As of September 30, 2022, we have not applied any expedients or options available under these Accounting Standards Updates. |
Segment information | As of September 30, 2022, we manage and review our consolidated operations through the following two reportable segments: • The distribution segment is primarily comprised of our regulated natural gas distribution and related sales operations in eight states. • The pipeline and storage segment is comprised primarily of the pipeline and storage operations of our Atmos Pipeline-Texas division and our natural gas transmission operations in Louisiana. Our determination of reportable segments considers the strategic operating units under which we manage sales of various products and services to customers. Although our distribution segment operations are geographically dispersed, they are aggregated and reported as a single segment as each natural gas distribution division has similar economic characteristics. In addition, because the pipeline and storage operations of our Atmos Pipeline-Texas division and our natural gas transmission operations in Louisiana have similar economic characteristics, they have been aggregated and reported as a single segment. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. We evaluate performance based on net income or loss of the respective operating units. We allocate interest and pension expense to the pipeline and storage segment; however, there is no debt or pension liability recorded on the pipeline and storage segment balance sheet. All material intercompany transactions have been eliminated; however, we have not eliminated intercompany profits when such amounts are probable of recovery under the affiliates’ rate regulation process. Income taxes are allocated to each segment as if each segment’s income taxes were calculated on a separate return basis. |
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. |
Nature of Business (Tables)
Nature of Business (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Schedule of Divisions and Service Areas | Through our distribution business, we deliver natural gas through sales and transportation arrangements to approximately 3.3 million residential, commercial, public-authority and industrial customers through our six regulated distribution divisions in the service areas described below: Division Service Area Atmos Energy Colorado-Kansas Division Colorado, Kansas Atmos Energy Kentucky/Mid-States Division Kentucky, Tennessee, Virginia (1) Atmos Energy Louisiana Division Louisiana Atmos Energy Mid-Tex Division Texas, including the Dallas/Fort Worth metropolitan area Atmos Energy Mississippi Division Mississippi Atmos Energy West Texas Division West Texas (1) Denotes location where we have more limited service areas. |
Summary of Significant Accoun_3
Summary of Significant Accounting Policies (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Accounting Policies [Abstract] | |
Schedule of Regulatory Assets | Significant regulatory assets and liabilities as of September 30, 2022 and 2021 included the following: September 30 2022 2021 (In thousands) Regulatory assets: Pension and postretirement benefit costs $ 31,122 $ 45,922 Infrastructure mechanisms (1) 235,972 222,795 Winter Storm Uri incremental costs (2) 2,109,454 2,100,728 Deferred gas costs 119,742 66,395 Regulatory excess deferred taxes (3) 47,311 45,370 Recoverable loss on reacquired debt 3,406 3,789 Deferred pipeline record collection costs 36,898 32,099 Other 21,467 4,343 $ 2,605,372 $ 2,521,441 Regulatory liabilities: Regulatory excess deferred taxes (3) $ 545,021 $ 705,084 Regulatory cost of removal obligation 568,307 541,511 Deferred gas costs 28,834 52,553 Asset retirement obligation 5,737 18,373 APT annual adjustment mechanism 31,138 31,110 Pension and postretirement benefit costs 156,857 56,201 Other 23,013 19,363 $ 1,358,907 $ 1,424,195 (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 the deferred expenses until the next rate proceeding (rate case or annual rate filing), at which time investment and costs would be recovered through base rates. (2) Includes extraordinary gas costs incurred during Winter Storm Uri and related carrying costs. See Note 9 to the consolidated financial statements for further information. This amount is recorded within other current assets and deferred charges and other assets on the consolidated balance sheet as of September 30, 2022 and 2021. (3) Regulatory excess 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") and a Kansas legislative change enacted in fiscal 2020. See Notes 12 and 14 to the consolidated financial statements for further information. |
Schedule of Regulatory Liabilities | Significant regulatory assets and liabilities as of September 30, 2022 and 2021 included the following: September 30 2022 2021 (In thousands) Regulatory assets: Pension and postretirement benefit costs $ 31,122 $ 45,922 Infrastructure mechanisms (1) 235,972 222,795 Winter Storm Uri incremental costs (2) 2,109,454 2,100,728 Deferred gas costs 119,742 66,395 Regulatory excess deferred taxes (3) 47,311 45,370 Recoverable loss on reacquired debt 3,406 3,789 Deferred pipeline record collection costs 36,898 32,099 Other 21,467 4,343 $ 2,605,372 $ 2,521,441 Regulatory liabilities: Regulatory excess deferred taxes (3) $ 545,021 $ 705,084 Regulatory cost of removal obligation 568,307 541,511 Deferred gas costs 28,834 52,553 Asset retirement obligation 5,737 18,373 APT annual adjustment mechanism 31,138 31,110 Pension and postretirement benefit costs 156,857 56,201 Other 23,013 19,363 $ 1,358,907 $ 1,424,195 (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 the deferred expenses until the next rate proceeding (rate case or annual rate filing), at which time investment and costs would be recovered through base rates. (2) Includes extraordinary gas costs incurred during Winter Storm Uri and related carrying costs. See Note 9 to the consolidated financial statements for further information. This amount is recorded within other current assets and deferred charges and other assets on the consolidated balance sheet as of September 30, 2022 and 2021. (3) Regulatory excess 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") and a Kansas legislative change enacted in fiscal 2020. See Notes 12 and 14 to the consolidated financial statements for further information. |
Schedule of Capitalization | The following table details amounts capitalized for the fiscal year ended September 30. 2022 2021 2020 Component of AFUDC Statement of Comprehensive Income Location (In thousands) Debt Interest charges $ 12,153 $ 11,414 $ 8,436 Equity Other non-operating income (expense) 45,505 32,749 23,493 $ 57,658 $ 44,163 $ 31,929 |
Segment Information (Tables)
Segment Information (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Segment Reporting [Abstract] | |
Schedule of Segment Reporting Information, by Segment | Income statements and capital expenditures by segment are shown in the following tables. Year Ended September 30, 2022 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 4,031,936 $ 169,726 $ — $ 4,201,662 Intersegment revenues 3,258 523,934 (527,192) — Total operating revenues 4,035,194 693,660 (527,192) 4,201,662 Purchased gas cost 2,210,302 (1,583) (526,063) 1,682,656 Operation and maintenance expense 518,443 192,847 (1,129) 710,161 Depreciation and amortization expense 387,858 147,797 — 535,655 Taxes, other than income 314,046 38,162 — 352,208 Operating income 604,545 316,437 — 920,982 Other non-operating income 6,946 26,791 — 33,737 Interest charges 49,921 52,890 — 102,811 Income before income taxes 561,570 290,338 — 851,908 Income tax expense 39,593 37,917 — 77,510 Net income $ 521,977 $ 252,421 $ — $ 774,398 Capital expenditures $ 1,675,798 $ 768,622 $ — $ 2,444,420 Year Ended September 30, 2021 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 3,238,753 $ 168,737 $ — $ 3,407,490 Intersegment revenues 3,220 468,610 (471,830) — Total operating revenues 3,241,973 637,347 (471,830) 3,407,490 Purchased gas cost 1,501,695 1,582 (470,560) 1,032,717 Operation and maintenance expense 501,209 179,080 (1,270) 679,019 Depreciation and amortization expense 345,481 132,496 — 477,977 Taxes, other than income 275,074 37,705 — 312,779 Operating income 618,514 286,484 — 904,998 Other non-operating income (expense) (20,694) 18,549 — (2,145) Interest charges 36,629 46,925 — 83,554 Income before income taxes 561,191 258,108 — 819,299 Income tax expense 115,329 38,407 — 153,736 Net income $ 445,862 $ 219,701 $ — $ 665,563 Capital expenditures $ 1,454,195 $ 515,345 $ — $ 1,969,540 Year Ended September 30, 2020 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Operating revenues from external parties $ 2,624,251 $ 196,886 $ — $ 2,821,137 Intersegment revenues 2,742 412,453 (415,195) — Total operating revenues 2,626,993 609,339 (415,195) 2,821,137 Purchased gas cost 1,071,227 1,548 (413,921) 658,854 Operation and maintenance expense 472,760 158,115 (1,274) 629,601 Depreciation and amortization expense 309,582 120,246 — 429,828 Taxes, other than income 245,181 33,574 — 278,755 Operating income 528,243 295,856 — 824,099 Other non-operating income (expense) (1,265) 8,436 — 7,171 Interest charges 39,634 44,840 — 84,474 Income before income taxes 487,344 259,452 — 746,796 Income tax expense 91,680 53,673 — 145,353 Net income $ 395,664 $ 205,779 $ — $ 601,443 Capital expenditures $ 1,466,631 $ 469,045 $ — $ 1,935,676 Balance sheet information at September 30, 2022 and 2021 by segment is presented in the following tables. September 30, 2022 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Property, plant and equipment, net $ 12,723,532 $ 4,516,707 $ — $ 17,240,239 Total assets $ 21,424,586 $ 4,797,206 $ (4,028,803) $ 22,192,989 September 30, 2021 Distribution Pipeline and Storage Eliminations Consolidated (In thousands) Property, plant and equipment, net $ 11,232,649 $ 3,831,321 $ — $ 15,063,970 Total assets $ 18,847,266 $ 4,076,844 $ (3,315,448) $ 19,608,662 |
Revenue from External Customers by Products and Services | The following table summarizes our revenues from external parties, excluding intersegment revenues, by products and services for the fiscal years ended September 30. 2022 2021 2020 (In thousands) Distribution revenues: Gas sales revenues: Residential $ 2,492,116 $ 2,117,272 $ 1,717,070 Commercial 1,126,189 838,382 654,963 Industrial 224,632 113,171 89,641 Public authority and other 66,956 50,369 42,007 Total gas sales revenues 3,909,893 3,119,194 2,503,681 Transportation revenues 110,905 105,554 97,441 Other gas revenues 11,138 14,005 23,129 Total distribution revenues 4,031,936 3,238,753 2,624,251 Pipeline and storage revenues 169,726 168,737 196,886 Total operating revenues $ 4,201,662 $ 3,407,490 $ 2,821,137 |
Earnings Per Share (Tables)
Earnings Per Share (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Earnings Per Share [Abstract] | |
Schedule of Earnings Per Share, Basic and Diluted | Basic and diluted earnings per share for the fiscal years ended September 30 are calculated as follows: 2022 2021 2020 (In thousands, except per share data) Basic Earnings Per Share Net income $ 774,398 $ 665,563 $ 601,443 Less: Income allocated to participating securities 508 465 444 Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Basic weighted average shares outstanding 137,830 129,779 122,788 Net income per share — Basic $ 5.61 $ 5.12 $ 4.89 Diluted Earnings Per Share Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Effect of dilutive shares — — — Net income available to common shareholders $ 773,890 $ 665,098 $ 600,999 Basic weighted average shares outstanding 137,830 129,779 122,788 Dilutive shares 266 55 84 Diluted weighted average shares outstanding 138,096 129,834 122,872 Net income per share — Diluted $ 5.60 $ 5.12 $ 4.89 |
Revenue and Accounts Receivab_2
Revenue and Accounts Receivable (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Revenue from Contract with Customer [Abstract] | |
Disaggregation of Revenue | The following tables disaggregates our revenue from contracts with customers by customer type and segment and provides a reconciliation to total operating revenues, including intersegment revenues, for the periods presented. Year Ended September 30, 2022 Distribution Pipeline and Storage (In thousands) Gas sales revenues: Residential $ 2,472,461 $ — Commercial 1,120,322 — Industrial 224,427 — Public authority and other 66,691 — Total gas sales revenues 3,883,901 — Transportation revenues 113,043 707,205 Miscellaneous revenues 10,282 13,679 Revenues from contracts with customers 4,007,226 720,884 Alternative revenue program revenues (1) 26,041 (27,224) Other revenues 1,927 — Total operating revenues $ 4,035,194 $ 693,660 Year Ended September 30, 2021 Distribution Pipeline and Storage Gas sales revenues: Residential $ 2,129,704 $ — Commercial 841,145 — Industrial 113,091 — Public authority and other 50,565 — Total gas sales revenues 3,134,505 — Transportation revenues 107,822 646,416 Miscellaneous revenues 10,971 14,141 Revenues from contracts with customers 3,253,298 660,557 Alternative revenue program revenues (1) (13,303) (23,210) Other revenues 1,978 — Total operating revenues $ 3,241,973 $ 637,347 Year Ended September 30, 2020 Distribution Pipeline and Storage Gas sales revenues: Residential $ 1,704,444 $ — Commercial 650,396 — Industrial 89,467 — Public authority and other 41,339 — Total gas sales revenues 2,485,646 — Transportation revenues 99,435 636,819 Miscellaneous revenues 19,085 9,754 Revenues from contracts with customers 2,604,166 646,573 Alternative revenue program revenues (1) 20,856 (37,234) Other revenues 1,971 — Total operating revenues $ 2,626,993 $ 609,339 (1) In our distribution segment, we have weather-normalization adjustment mechanisms that serve to mitigate the effects of weather on our revenue. Additionally, 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. |
Allowance for Credit Loss Activity | Rollforwards of our allowance for uncollectible accounts for the years ended September 30, 2022, 2021 and 2020 are presented in the table below. In response to the COVID-19 pandemic, beginning in March 2020, regulators issued collection moratoriums, which required us to temporarily suspend our customer collection activities and charging late fees. After regulators lifted these moratoriums, we resumed customer collection activities during the third quarter of fiscal 2021. These regulatory orders influenced our bad debt expense and writeoffs from fiscal 2020 through 2022. We actively work with our customers experiencing financial hardship to offer flexible payment options and to direct them to aid agencies for financial assistance. Our allowance for uncollectible accounts reflects the expected impact on our customers’ ability to pay. Our allowance for uncollectible accounts also reflects the fact that we have the ability to recovery the gas cost portion of uncollectible accounts through our gas cost recovery mechanisms in five states, which covers approximately 81 percent of our residential and commercial customers. Allowance for uncollectible accounts (In thousands) Balance, September 30, 2019 $ 15,899 Current period provisions 24,796 Write-offs charged against allowance (12,698) Recoveries of amounts previously written off 1,952 Balance, September 30, 2020 29,949 Current period provisions 43,807 Write-offs charged against allowance (11,019) Recoveries of amounts previously written off 1,734 Balance, September 30, 2021 64,471 Current period provisions 16,576 Write-offs charged against allowance (32,885) Recoveries of amounts previously written off 1,831 Balance, September 30, 2022 $ 49,993 |
Leases (Tables)
Leases (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Leases [Abstract] | |
Other Pertinent Information Related to Leases | The following table presents our weighted average remaining lease term for our leases. September 30, 2022 September 30, 2021 Weighted average remaining lease term (years) Finance leases 18.7 19.0 Operating leases 9.7 10.2 The following table represents our weighted average discount rate: September 30, 2022 September 30, 2021 Weighted average discount rate Finance leases 4.0 % 5.7 % Operating leases 2.9 % 2.8 % Lease costs for the years ended September 30, 2022, 2021 and 2020 are presented in the table below. These costs include both amounts recognized in expense and amounts capitalized. For the years ended September 30, 2022, 2021 and 2020 we did not have material short-term lease costs or variable lease costs. Year Ended September 30 2022 2021 2020 (In thousands) Finance lease cost $ 4,314 $ 1,334 $ 622 Operating lease cost 43,394 42,349 40,887 Total lease cost $ 47,708 $ 43,683 $ 41,509 Our ROU assets and lease liabilities are presented as follows on the consolidated balance sheets: Balance Sheet Classification September 30, 2022 September 30, 2021 (In thousands) Assets Finance leases Net Property, Plant and Equipment $ 50,118 $ 18,252 Operating leases Deferred charges and other assets 214,663 222,446 Total right-of-use assets $ 264,781 $ 240,698 Liabilities Current Finance leases Current maturities of long-term debt $ 1,457 $ 452 Operating leases Other current liabilities 38,644 37,688 Noncurrent Finance leases Long-term debt 50,393 18,287 Operating leases Deferred credits and other liabilities 184,301 194,745 Total lease liabilities $ 274,795 $ 251,172 Other pertinent information related to leases was as follows. During the years ended September 30, 2022, 2021 and 2020 amounts paid in cash for our finance leases were not material. Year Ended September 30 2022 2021 2020 (In thousands) Cash paid amounts included in the measurement of lease liabilities Operating cash flows used for operating leases $ 45,080 $ 42,013 $ 37,758 Right-of-use assets obtained in exchange for lease obligations Finance leases $ 33,833 $ 10,333 $ 6,083 Operating leases $ 28,310 $ 25,690 $ 34,169 |
Schedule of Finance Lease Liability Maturities | Maturities of our lease liabilities as of September 30, 2022 were as follows by fiscal years: Total Finance Leases Operating Leases (In thousands) 2023 $ 46,417 $ 3,313 $ 43,104 2024 39,832 3,375 36,457 2025 30,612 3,438 27,174 2026 24,141 3,502 20,639 2027 21,322 3,568 17,754 Thereafter 170,704 55,997 114,707 Total lease payments 333,028 73,193 259,835 Less: Imputed interest 58,233 21,343 36,890 Total $ 274,795 $ 51,850 $ 222,945 Reported as of September 30, 2022 Short-term lease liabilities $ 40,101 $ 1,457 $ 38,644 Long-term lease liabilities 234,694 50,393 184,301 Total lease liabilities $ 274,795 $ 51,850 $ 222,945 |
Schedule of Operating Lease Liability Maturities | Maturities of our lease liabilities as of September 30, 2022 were as follows by fiscal years: Total Finance Leases Operating Leases (In thousands) 2023 $ 46,417 $ 3,313 $ 43,104 2024 39,832 3,375 36,457 2025 30,612 3,438 27,174 2026 24,141 3,502 20,639 2027 21,322 3,568 17,754 Thereafter 170,704 55,997 114,707 Total lease payments 333,028 73,193 259,835 Less: Imputed interest 58,233 21,343 36,890 Total $ 274,795 $ 51,850 $ 222,945 Reported as of September 30, 2022 Short-term lease liabilities $ 40,101 $ 1,457 $ 38,644 Long-term lease liabilities 234,694 50,393 184,301 Total lease liabilities $ 274,795 $ 51,850 $ 222,945 |
Debt (Table)
Debt (Table) | 12 Months Ended |
Sep. 30, 2022 | |
Debt Disclosure [Abstract] | |
Schedule of Long-term Debt Instruments | Long-term debt at September 30, 2022 and 2021 consisted of the following: 2022 2021 (In thousands) Unsecured 0.625% Senior Notes, due March 2023 $ 1,100,000 $ 1,100,000 Unsecured 3.00% Senior Notes, due June 2027 500,000 500,000 Unsecured 2.625% Senior Notes, due September 2029 500,000 300,000 Unsecured 1.50% Senior Notes, due January 2031 600,000 600,000 Unsecured 5.95% Senior Notes, due October 2034 200,000 200,000 Unsecured 5.50% Senior Notes, due June 2041 400,000 400,000 Unsecured 4.15% Senior Notes, due January 2043 500,000 500,000 Unsecured 4.125% Senior Notes, due October 2044 750,000 750,000 Unsecured 4.30% Senior Notes, due October 2048 600,000 600,000 Unsecured 4.125% Senior Notes, due March 2049 450,000 450,000 Unsecured 3.375% Senior Notes, due September 2049 500,000 500,000 Unsecured 2.85% Senior Notes, due February 2052 600,000 — Floating-rate term loan, due April 2022 — 200,000 Floating-rate Senior Notes, due March 2023 1,100,000 1,100,000 Medium term Series A notes, 1995-1, 6.67%, due December 2025 10,000 10,000 Unsecured 6.75% Debentures, due July 2028 150,000 150,000 Finance lease obligations (see Note 6) 51,850 18,739 Total long-term debt 8,011,850 7,378,739 Less: Net original issue discount on unsecured senior notes and debentures 3,704 2,811 Debt issuance cost 46,042 45,271 Current maturities 2,201,457 2,400,452 $ 5,760,647 $ 4,930,205 |
Schedule of Maturities of Long-term Debt | Maturities of long-term debt, excluding our finance lease obligations, at September 30, 2022 were as follows by fiscal years (in thousands): 2023 $ 2,200,000 2024 — 2025 — 2026 10,000 2027 500,000 Thereafter 5,250,000 $ 7,960,000 |
Shareholders' Equity (Table)
Shareholders' Equity (Table) | 12 Months Ended |
Sep. 30, 2022 | |
Equity [Abstract] | |
Summary of Forward Sales Agreements | Maturity Shares Available Net Proceeds Available Forward Price September 29, 2023 4,552,157 $ 492,015 $ 108.08 December 29, 2023 919,898 105,451 $ 114.63 March 28, 2024 1,554,105 179,177 $ 115.29 Total 7,026,160 $ 776,643 $ 110.54 |
Schedule of Accumulated Other Comprehensive Income (Loss) | 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- Interest Rate Total (In thousands) September 30, 2021 $ 47 $ 69,756 $ 69,803 Other comprehensive income (loss) before reclassifications (542) 296,875 296,333 Amounts reclassified from accumulated other comprehensive income — 2,976 2,976 Net current-period other comprehensive income (loss) (542) 299,851 299,309 September 30, 2022 $ (495) $ 369,607 $ 369,112 Available- Interest Rate Total (In thousands) September 30, 2020 $ 238 $ (57,827) $ (57,589) Other comprehensive income (loss) before reclassifications (191) 123,017 122,826 Amounts reclassified from accumulated other comprehensive income — 4,566 4,566 Net current-period other comprehensive income (loss) (191) 127,583 127,392 September 30, 2021 $ 47 $ 69,756 $ 69,803 |
Retirement and Postretirement_2
Retirement and Postretirement Employee Benefit Plans (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Retirement Benefits [Abstract] | |
Schedule of Net Periodic Benefit Cost Not yet Recognized | Additionally, the amounts that have not yet been recognized in net periodic pension cost that have been recorded as regulatory assets or liabilities are as follows: Employee Pension Plan Supplemental Postretirement Total (In thousands) September 30, 2022 Unrecognized prior service credit $ (121) $ — $ (51,079) $ (51,200) Unrecognized actuarial (gain) loss (32,159) 14,029 (87,527) (105,657) $ (32,280) $ 14,029 $ (138,606) $ (156,857) September 30, 2021 Unrecognized prior service credit $ (353) $ — $ (64,313) $ (64,666) Unrecognized actuarial (gain) loss (3,060) 39,666 (28,141) 8,465 $ (3,413) $ 39,666 $ (92,454) $ (56,201) |
Schedule of Allocation of Plan Assets | The following table presents asset allocation information for the Master Trust as of September 30, 2022 and 2021. Targeted Actual Security Class 2022 2021 Domestic equities 35%-55% 39.7% 44.5% International equities 10%-20% 14.6% 16.9% Fixed income 5%-30% 16.0% 16.0% Company stock 0%-15% 15.3% 10.6% Other assets 0%-20% 14.4% 12.0% Actual Security Class 2022 2021 Diversified investment funds 97.7% 97.9% Cash and cash equivalents 2.3% 2.1% |
Schedule of Assumptions Used | The actuarial assumptions used to determine the pension liability for the Pension Plan was determined as of September 30, 2022 and 2021 and the actuarial assumptions used to determine the net periodic pension cost for the Pension Plan was determined as of September 30, 2021, 2020 and 2019. Additional assumptions are presented in the following table: Pension Pension Cost 2022 2021 2022 2021 2020 Discount rate 5.66 % 2.97 % 2.97 % 2.80 % 3.29 % Rate of compensation increase 3.50 % 3.50 % 3.50 % 3.50 % 3.50 % Expected return on plan assets 6.25 % 6.25 % 6.25 % 6.25 % 6.50 % Interest crediting rate 4.69 % 4.69 % 4.69 % 4.69 % 4.69 % Pension Pension Cost 2022 2021 2022 2021 2020 Discount rate (1) 5.71 % 2.57 % 2.57 % 2.90 % 3.19 % Rate of compensation increase 3.50 % 3.50 % 3.50 % 3.50 % 3.50 % Interest crediting rate 4.69 % 4.69 % 4.69 % 4.69 % 4.69 % ( 1 ) Reflects a weighted average discount rate for pension cost for fiscal 2021 and 2020 due to the settlements during the year. The assumptions are presented in the following table: Postretirement Postretirement Cost 2022 2021 2022 2021 2020 Discount rate 5.61 % 3.01 % 3.01 % 2.80 % 3.29 % Expected return on plan assets 4.94 % 4.94 % 4.94 % 4.94 % 5.14 % Initial trend rate 6.25 % 6.25 % 6.25 % 6.25 % 6.25 % Ultimate trend rate 4.75 % 5.00 % 5.00 % 5.00 % 5.00 % Ultimate trend reached in 2029 2027 2027 2026 2025 |
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan | The following table presents the Pension Plan’s accumulated benefit obligation, projected benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Accumulated benefit obligation $ 428,629 $ 558,639 Change in projected benefit obligation: Benefit obligation at beginning of year $ 596,029 $ 604,221 Service cost 16,165 17,369 Interest cost 17,606 16,883 Actuarial gain (141,567) (7,561) Benefits paid (38,706) (34,883) Benefit obligation at end of year 449,527 596,029 Change in plan assets: Fair value of plan assets at beginning of year 596,806 528,881 Actual return on plan assets (87,575) 92,808 Employer contributions 8,500 10,000 Benefits paid (38,706) (34,883) Fair value of plan assets at end of year 479,025 596,806 Reconciliation: Funded status 29,498 777 Unrecognized prior service cost — — Unrecognized net loss — — Net amount recognized $ 29,498 $ 777 The following table presents the Supplemental Plans’ accumulated benefit obligation, projected benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Accumulated benefit obligation $ 79,233 $ 100,981 Change in projected benefit obligation: Benefit obligation at beginning of year $ 104,301 $ 129,140 Service cost 1,129 1,067 Interest cost 2,647 3,180 Actuarial (gain) loss (22,471) 1,332 Benefits paid (4,831) (4,720) Settlements — (25,698) Benefit obligation at end of year 80,775 104,301 Change in plan assets: Fair value of plan assets at beginning of year — — Employer contribution 4,831 30,418 Benefits paid (4,831) (4,720) Settlements — (25,698) Fair value of plan assets at end of year — — Reconciliation: Funded status (80,775) (104,301) Unrecognized prior service cost — — Unrecognized net loss — — Accrued pension cost $ (80,775) $ (104,301) The following table presents the Retiree Medical Plan’s benefit obligation and funded status as of September 30, 2022 and 2021: 2022 2021 (In thousands) Change in benefit obligation: Benefit obligation at beginning of year $ 355,156 $ 370,678 Service cost 10,235 11,000 Interest cost 10,734 15,372 Plan participants’ contributions 3,210 5,648 Actuarial (gain) loss (112,748) 6,800 Benefits paid (16,359) (19,610) Plan amendments — (34,732) Benefit obligation at end of year 250,228 355,156 Change in plan assets: Fair value of plan assets at beginning of year 268,199 208,245 Actual return on plan assets (40,113) 53,335 Employer contributions 14,749 20,581 Plan participants’ contributions 3,210 5,648 Benefits paid (16,359) (19,610) Fair value of plan assets at end of year 229,686 268,199 Reconciliation: Funded status (20,542) (86,957) Unrecognized transition obligation — — Unrecognized prior service cost — — Unrecognized net loss — — Accrued postretirement cost $ (20,542) $ (86,957) |
Schedule of Net Benefit Costs | Net periodic pension cost for the Pension Plan for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic pension cost: Service cost $ 16,165 $ 17,369 $ 17,551 Interest cost (1) 17,606 16,883 19,028 Expected return on assets (1) (29,531) (27,913) (28,316) Amortization of prior service credit (1) (231) (231) (231) Recognized actuarial loss (1) 4,638 8,686 9,025 Net periodic pension cost $ 8,647 $ 14,794 $ 17,057 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) Net periodic pension cost for the Supplemental Plans for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic pension cost: Service cost $ 1,129 $ 1,067 $ 1,074 Interest cost (1) 2,647 3,180 4,188 Recognized actuarial loss (1) 3,166 3,560 3,945 Settlements (1) — 9,151 9,180 Net periodic pension cost $ 6,942 $ 16,958 $ 18,387 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) Net periodic postretirement cost for the Retiree Medical Plan for fiscal 2022, 2021 and 2020 is presented in the following table. Fiscal Year Ended September 30 2022 2021 2020 (In thousands) Components of net periodic postretirement cost: Service cost $ 10,235 $ 11,000 $ 13,466 Interest cost (1) 10,734 15,372 10,612 Expected return on assets (1) (13,249) (10,455) (10,499) Amortization of prior service (credit) cost (1) (13,234) 30,533 173 Recognized actuarial (gain) loss (1) — 1,172 (1,337) Net periodic postretirement cost $ (5,514) $ 47,622 $ 12,415 (1) The components of net periodic cost other than the service cost component are included in the line item other non-operating income (expense) |
Schedule of Employee Pension Plans Investments at Fair Value | In addition to the assets shown below, the Pension Plan had net accounts receivable of $2.4 million and $2.1 million at September 30, 2022 and 2021, which materially approximates fair value due to the short-term nature of these assets. Assets at Fair Value as of September 30, 2022 Level 1 Level 2 Level 3 Total (In thousands) Investments: Common stocks $ 210,325 $ — $ — $ 210,325 Money market funds — 14,490 — 14,490 Registered investment companies 53,401 — — 53,401 Government securities: Mortgage-backed securities — 14,175 — 14,175 U.S. treasuries 3,681 28 — 3,709 Corporate bonds — 22,320 — 22,320 Total investments measured at fair value $ 267,407 $ 51,013 $ — 318,420 Investments measured at net asset value: Common/collective trusts (1) 86,891 Limited partnerships (1) 71,331 Total investments $ 476,642 Assets at Fair Value as of September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Investments: Common stocks $ 239,166 $ — $ — $ 239,166 Money market funds — 7,060 — 7,060 Registered investment companies 74,236 — — 74,236 Government securities: Mortgage-backed securities — 14,048 — 14,048 U.S. treasuries 7,483 34 — 7,517 Corporate bonds — 30,834 — 30,834 Total investments measured at fair value $ 320,885 $ 51,976 $ — 372,861 Investments measured at net asset value: Common/collective trusts (1) 121,570 Limited partnerships (1) 100,299 Total investments $ 594,730 (1) The fair value of our common/collective trusts and limited partnerships are measured using the net asset value per share practical expedient. There are no redemption restrictions, redemption notice periods or unfunded commitments for these investments. The redemption frequency is daily. |
Schedule of Expected Benefit Payments | The following benefit payments for our defined benefit plans, which reflect expected future service, as appropriate, are expected to be paid in the following fiscal years: Pension Supplemental (In thousands) 2023 $ 40,569 $ 9,995 2024 40,126 9,538 2025 40,396 30,135 2026 41,611 6,594 2027 41,358 3,946 2028-2032 198,156 27,420 The following benefit payments paid by the Company, retirees and prescription drug subsidies for our Retiree Medical Plan, which reflect expected future service, as appropriate, are expected to be paid in the following fiscal years. Company Retiree Subsidy Total (In thousands) 2023 $ 17,141 $ 2,445 $ — $ 19,586 2024 17,409 2,410 — 19,819 2025 17,582 2,314 — 19,896 2026 18,022 2,282 — 20,304 2027 18,269 2,193 — 20,462 2028-2032 94,528 9,638 — 104,166 |
Schedule of Postretirement Benefit Plans Investments at Fair Value | The following tables set forth by level, within the fair value hierarchy, the Retiree Medical Plan’s assets at fair value as of September 30, 2022 and 2021. The methods used to determine fair value for the assets held by the Retiree Medical Plan are fully described in Note 2 to the consolidated financial statements. Assets at Fair Value as of September 30, 2022 Level 1 Level 2 Level 3 Total (In thousands) Investments: Money market funds $ — $ 5,214 $ — $ 5,214 Registered investment companies 224,472 — — 224,472 Total investments measured at fair value $ 224,472 $ 5,214 $ — $ 229,686 Assets at Fair Value as of September 30, 2021 Level 1 Level 2 Level 3 Total (In thousands) Investments: Money market funds $ — $ 5,527 $ — $ 5,527 Registered investment companies 262,672 — — 262,672 Total investments measured at fair value $ 262,672 $ 5,527 $ — $ 268,199 |
Stock and Other Compensation _2
Stock and Other Compensation Plans (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Share-Based Payment Arrangement [Abstract] | |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | The following summarizes information regarding the restricted stock units granted under the plan during the fiscal years ended September 30, 2022, 2021 and 2020: 2022 2021 2020 Number of Weighted Number of Weighted Number of Weighted Nonvested at beginning of year 378,127 $ 102.45 443,279 $ 99.28 503,072 $ 91.66 Granted 179,738 108.07 223,954 102.68 199,985 102.34 Vested (159,019) 100.99 (271,435) 97.44 (242,975) 85.66 Forfeited (17,551) 103.37 (17,671) 101.48 (16,803) 96.87 Nonvested at end of year 381,295 $ 105.69 378,127 $ 102.45 443,279 $ 99.28 |
Details of Selected Consolida_2
Details of Selected Consolidated Balance Sheet Captions (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Balance Sheet Related Disclosures [Abstract] | |
Schedule of Accounts Receivables | Accounts receivable was comprised of the following at September 30, 2022 and 2021: September 30 2022 2021 (In thousands) Billed accounts receivable $ 258,333 $ 218,219 Unbilled revenue 121,518 97,417 Contributions in aid of construction receivable 5,390 18,984 Insurance receivable 13,160 53,779 Other accounts receivable 15,300 19,039 Total accounts receivable 413,701 407,438 Less: allowance for uncollectible accounts (49,993) (64,471) Net accounts receivable $ 363,708 $ 342,967 |
Schedule of Other Current Assets | Other current assets as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Deferred gas costs $ 119,742 $ 66,395 Winter Storm Uri incremental costs 2,020,954 2,011,719 Prepaid expenses 58,551 48,766 Taxes receivable 11,911 — Materials and supplies 25,880 15,581 Assets from risk management activities 26,207 55,073 Other 11,245 3,375 Total $ 2,274,490 $ 2,200,909 |
Schedule of Property, Plant and Equipment | Property, plant and equipment was comprised of the following as of September 30, 2022 and 2021: September 30 2022 2021 (In thousands) Storage plant $ 589,210 $ 539,972 Transmission plant 4,325,540 3,725,347 Distribution plant 13,511,409 12,085,654 General plant 937,500 868,962 Intangible plant 38,612 38,612 19,402,271 17,258,547 Construction in progress 835,868 626,551 20,238,139 17,885,098 Less: accumulated depreciation and amortization (2,997,900) (2,821,128) Net property, plant and equipment (1) $ 17,240,239 $ 15,063,970 (1) Net property, plant and equipment includes plant acquisition adjustments of $(26.6) million and $(28.5) million at September 30, 2022 and 2021. |
Schedule of Deferred Charges and Other Assets | Deferred charges and other assets as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Marketable securities $ 96,012 $ 108,071 Regulatory assets (See Note 2) 368,375 351,843 Operating lease right of use assets (See Note 6) 214,663 222,446 Winter Storm Uri incremental costs 88,500 89,009 Assets from risk management activities 355,784 175,613 Pension assets 29,498 — Other 20,968 27,738 Total $ 1,173,800 $ 974,720 |
Schedule of Accounts Payable and Accrued Liabilities | Accounts payable and accrued liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Trade accounts payable $ 258,506 $ 224,873 Accrued gas payable 157,942 100,699 Accrued liabilities 79,571 97,650 Total $ 496,019 $ 423,222 |
Schedule of Other Current Liabilities | Other current liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Customer credit balances and deposits $ 56,016 $ 49,722 Accrued employee costs 47,661 50,517 Deferred gas costs 28,834 52,553 Operating lease liabilities (See Note 6) 38,644 37,688 Accrued interest 59,542 55,164 Liabilities from risk management activities 3,000 5,269 Taxes payable 189,239 160,986 Pension and postretirement liabilities 9,721 4,863 Regulatory cost of removal obligation 80,676 72,823 APT annual adjustment mechanism 18,034 22,694 Regulatory excess deferred taxes (See Note 14) 159,808 155,857 Other 28,982 18,545 Total $ 720,157 $ 686,681 |
Schedule of Deferred Credits and Other Liabilities | Deferred credits and other liabilities as of September 30, 2022 and 2021 were comprised of the following accounts. September 30 2022 2021 (In thousands) Pension and postretirement liabilities $ 91,596 $ 185,617 Operating lease liabilities (See Note 6) 184,301 194,745 Customer advances for construction 8,628 9,879 Other regulatory liabilities (See Note 2) 178,990 75,506 Asset retirement obligation 5,737 18,373 Liabilities from risk management activities 1,129 — APT annual adjustment mechanism 13,104 8,416 Unrecognized tax benefits (See Note 14) 39,908 32,792 Other 14,909 12,161 Total $ 538,302 $ 537,489 |
Schedule of Other Non-Operating Income (Expense) | Other non-operating income (expense) for the fiscal years ended September 30, 2022, 2021 and 2020 were comprised of the following accounts. Year Ended September 30 2022 2021 2020 (In thousands) Equity component of AFUDC $ 45,505 $ 32,749 $ 23,493 Performance-based rate program 8,327 6,362 6,771 Pension and other postretirement non-service credit (cost) 8,337 (19,238) (3,189) Interest income 2,781 2,144 2,932 Community support spending (16,357) (14,460) (11,728) Unrealized losses on equity securities (7,737) (860) (4,176) Miscellaneous (7,119) (8,842) (6,932) Total $ 33,737 $ (2,145) $ 7,171 |
Schedule of Supplemental Cash Flow Disclosures | Supplemental disclosures of cash flow information for the fiscal years ended September 30, 2022, 2021 and 2020 were as follows: Year Ended September 30 2022 2021 2020 (In thousands) Cash Paid (Received) During The Period For: Interest (1) $ 234,297 $ 207,555 $ 194,993 Income taxes $ 15,760 $ 8,199 $ (3,071) Non-Cash Transactions: Capital expenditures included in current liabilities $ 217,868 $ 184,786 $ 113,365 (1) Cash paid during the period for interest, net of amounts capitalized was $98.4 million, $81.9 million and $82.3 million for the fiscal years ended September 30, 2022, 2021 and 2020. |
Income Taxes (Tables)
Income Taxes (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Income Tax Disclosure [Abstract] | |
Schedule of Components of Income Tax Expense (Benefit) | The components of income tax expense from continuing operations for 2022, 2021 and 2020 were as follows: 2022 2021 2020 (In thousands) Current Federal $ 2,849 $ — $ — State 28,125 252 14,193 Deferred Federal 43,435 128,867 143,039 State (1) 3,101 24,617 (11,879) Income tax expense $ 77,510 $ 153,736 $ 145,353 |
Schedule of Effective Income Tax Rate Reconciliation | Reconciliations of the provision for income taxes computed at the statutory rate of 21 percent to the reported provisions for income taxes from continuing operations for 2022, 2021 and 2020 are set forth below: 2022 2021 2020 (In thousands) Tax at statutory rate $ 178,901 $ 172,053 $ 156,827 Common stock dividends deductible for tax reporting (1,355) (1,372) (1,419) State taxes (net of federal benefit) 24,669 19,647 22,791 Amortization of excess deferred taxes (127,193) (45,382) (16,125) Remeasurement due to state deferred tax rate change — — (20,962) Other, net 2,488 8,790 4,241 Income tax expense $ 77,510 $ 153,736 $ 145,353 |
Schedule of Deferred Tax Assets and Liabilities | The tax effect of temporary differences that gave rise to significant components of the deferred tax liabilities and deferred tax assets at September 30, 2022 and 2021 are presented below: 2022 2021 (In thousands) Deferred tax assets: Employee benefit plans $ 57,094 $ 64,316 Net operating loss carryforwards 485,061 911,424 Charitable and other credit carryforwards 1,903 7,712 Regulatory excess deferred tax 110,548 148,200 Lease asset 50,007 52,138 Other 44,035 33,591 Total deferred tax assets 748,648 1,217,381 Valuation allowance (523) (663) Net deferred tax assets 748,125 1,216,718 Deferred tax liabilities: Difference in net book value and net tax value of assets (2,431,757) (2,258,264) Gas cost adjustments (43,964) (26,413) Winter Storm Uri regulatory asset (20,710) (471,025) Lease liability (50,007) (52,138) Rate deferral adjustment (49,309) (47,445) Interest rate agreements (106,820) (20,156) Other (45,063) (47,086) Total deferred tax liabilities (2,747,630) (2,922,527) Net deferred tax liabilities $ (1,999,505) $ (1,705,809) |
Schedule of Unrecognized Tax Benefits Roll Forward | The following table reconciles the beginning and ending balance of our unrecognized tax benefits: 2022 2021 2020 (In thousands) Unrecognized tax benefits - beginning balance $ 32,792 $ 30,921 $ 27,716 Increase (decrease) resulting from prior period tax positions (721) 671 (26) Increase resulting from current period tax positions 20,612 1,200 3,231 Unrecognized tax benefits - ending balance 52,683 32,792 30,921 Less: deferred federal and state income tax benefits (11,063) (6,886) (6,493) Total unrecognized tax benefits that, if recognized, would impact the effective income tax rate as of the end of the year $ 41,620 $ 25,906 $ 24,428 |
Financial Instruments (Tables)
Financial Instruments (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | The following table summarizes our existing forward starting interest rate swaps as of September 30, 2022. These swaps were designated as cash flow hedges at the time the agreements were executed. Planned Debt Issuance Date Amount Hedged (In thousands) Fiscal 2024 $ 450,000 Fiscal 2025 600,000 Fiscal 2026 300,000 $ 1,350,000 |
Schedule of Financial instruments on the Balance Sheet | The following tables present the fair value and balance sheet classification of our financial instruments as of September 30, 2022 and 2021. As discussed in Note 2 to the consolidated financial statements, we report our financial instruments as risk management assets and liabilities, each of which is classified as current or noncurrent based upon the anticipated settlement date of the underlying financial instrument. The gross amounts of recognized assets and liabilities are netted within our consolidated balance sheets to the extent that we have netting arrangements with the counterparties. However, as of September 30, 2022 and 2021, no gross amounts and no cash collateral were netted within our consolidated balance sheet. Balance Sheet Location Assets Liabilities (In thousands) September 30, 2022 Designated As Hedges: Interest rate contracts Deferred charges and other assets / $ 355,075 $ — Total 355,075 — Not Designated As Hedges: Commodity contracts Other current assets / 26,207 (3,000) Commodity contracts Deferred charges and other assets / 709 (1,129) Total 26,916 (4,129) Gross / Net Financial Instruments $ 381,991 $ (4,129) Balance Sheet Location Assets Liabilities (In thousands) September 30, 2021 Designated As Hedges: Interest rate contracts Deferred charges and other assets / $ 169,469 $ — Total 169,469 — Not Designated As Hedges: Commodity contracts Other current assets / 55,073 (5,269) Commodity contracts Deferred charges and other assets / 6,144 — Total 61,217 (5,269) Gross / Net Financial Instruments $ 230,686 $ (5,269) |
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) | The following table summarizes the gains and losses arising from hedging transactions that were recognized as a component of other comprehensive income, net of taxes, for the years ended September 30, 2022 and 2021. Fiscal Year Ended 2022 2021 (In thousands) Increase in fair value: Interest rate agreements $ 296,875 $ 123,017 Recognition of losses in earnings due to settlements: Interest rate agreements 2,976 4,566 Total other comprehensive income from hedging, net of tax $ 299,851 $ 127,583 |
Schedule of Expected Deferred Gains (Losses) Recognition | 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 2053. However, the table below does not include the expected recognition in earnings of our outstanding interest rate agreements as those financial instruments have not yet settled. Interest Rate (In thousands) 2023 $ 2,120 2024 2,120 2025 2,120 2026 2,120 2027 2,120 Thereafter 83,547 Total $ 94,147 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 12 Months Ended |
Sep. 30, 2022 | |
Fair Value Disclosures [Abstract] | |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | 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 September 30, 2022 and 2021. As required under authoritative accounting literature, assets and liabilities are categorized in their entirety based on the lowest level of input that is significant to the fair value measurement. Quoted Significant Other Observable Inputs (Level 2) (1) Significant Netting and September 30, 2022 (In thousands) Assets: Financial instruments $ — $ 381,991 $ — $ — $ 381,991 Debt and equity securities Registered investment companies 26,367 — — — 26,367 Bond mutual funds 32,367 — — — 32,367 Bonds (2) — 33,433 — — 33,433 Money market funds — 3,845 — — 3,845 Total debt and equity securities 58,734 37,278 — — 96,012 Total assets $ 58,734 $ 419,269 $ — $ — $ 478,003 Liabilities: Financial instruments $ — $ 4,129 $ — $ — $ 4,129 Quoted Significant Other Observable Inputs (Level 2) (1) Significant Netting and September 30, 2021 (In thousands) Assets: Financial instruments $ — $ 230,686 $ — $ — $ 230,686 Debt and equity securities Registered investment companies 35,175 — — — 35,175 Bond mutual funds 34,298 — — — 34,298 Bonds (2) — 35,655 — — 35,655 Money market funds — 2,943 — — 2,943 Total debt and equity securities 69,473 38,598 — — 108,071 Total assets $ 69,473 $ 269,284 $ — $ — $ 338,757 Liabilities: Financial instruments $ — $ 5,269 $ — $ — $ 5,269 (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 which are valued at cost. (2) Our investments in bonds are considered available-for-sale debt securities in accordance with current accounting guidance. |
Schedule of Carrying Values and Estimated Fair Values of Long-Term Debt | The following table presents the carrying value and fair value of our long-term debt, excluding finances leases, debt issuance costs and original issue premium or discount, as of September 30, 2022: September 30, 2022 (In thousands) Carrying Amount $ 7,960,000 Fair Value $ 6,918,843 |
Nature of Business (Details)
Nature of Business (Details) customer in Millions | Sep. 30, 2022 regulatedDistributionDivision customer facility |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Number of customers serviced | customer | 3.3 |
Number of regulated distribution divisions | regulatedDistributionDivision | 6 |
Number of underground storage facilities | facility | 5 |
Summary of Significant Accoun_4
Summary of Significant Accounting Policies - Schedule of Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Regulatory Assets [Line Items] | ||
Regulatory assets | $ 2,605,372 | $ 2,521,441 |
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 1,358,907 | 1,424,195 |
Regulatory excess deferred taxes | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 545,021 | 705,084 |
Regulatory cost of removal obligation | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 568,307 | 541,511 |
Deferred gas costs | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 28,834 | 52,553 |
Asset retirement obligation | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 5,737 | 18,373 |
APT annual adjustment mechanism | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 31,138 | 31,110 |
Pension and postretirement benefit costs | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 156,857 | 56,201 |
Other | ||
Regulatory Liabilities [Line Items] | ||
Regulatory Liabilities | 23,013 | 19,363 |
Pension and postretirement benefit costs | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 31,122 | 45,922 |
Infrastructure mechanisms | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 235,972 | 222,795 |
Winter Storm Uri incremental costs | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 2,109,454 | 2,100,728 |
Deferred gas costs | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 119,742 | 66,395 |
Regulatory excess deferred taxes | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 47,311 | 45,370 |
Recoverable loss on reacquired debt | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 3,406 | 3,789 |
Deferred pipeline record collection costs | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | 36,898 | 32,099 |
Other | ||
Regulatory Assets [Line Items] | ||
Regulatory assets | $ 21,467 | $ 4,343 |
Summary of Significant Accoun_5
Summary of Significant Accounting Policies - Narrative (Details) | 12 Months Ended | |||
Sep. 30, 2022 USD ($) plan | Sep. 30, 2021 USD ($) | Sep. 30, 2020 | Mar. 31, 2022 USD ($) | |
Alternative Revenue Program [Line Items] | ||||
Number of asset management plans under management | plan | 2 | |||
Composite depreciation rate for regulated property, plant and equipment | 3% | 3% | 3% | |
Cash held in margin accounts | $ 0 | $ 0 | ||
Self-insured retention | 1,000,000 | |||
Commercial Paper | Five Year Unsecured Revolving Credit Agreement | ||||
Alternative Revenue Program [Line Items] | ||||
Maximum borrowing capacity | 1,500,000,000 | $ 1,500,000,000 | ||
Revolving Credit Facility | Five Year Unsecured Revolving Credit Agreement | ||||
Alternative Revenue Program [Line Items] | ||||
Maximum borrowing capacity | 2,500,000,000 | |||
Revolving Credit Facility | $900 Million Revolving Credit Facility | ||||
Alternative Revenue Program [Line Items] | ||||
Maximum borrowing capacity | $ 900,000,000 | $ 900,000,000 | ||
Pipeline and Storage | ||||
Alternative Revenue Program [Line Items] | ||||
Regulatory mechanism threshold (in percent) | 75% | |||
Rate case revenue benchmark | $ 69,400,000 |
Summary of Significant Accoun_6
Summary of Significant Accounting Policies - Allowance for Funds Used During Construction (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Accounting Policies [Abstract] | |||
Debt | $ 12,153 | $ 11,414 | $ 8,436 |
Equity | 45,505 | 32,749 | 23,493 |
AFUDC | $ 57,658 | $ 44,163 | $ 31,929 |
Segment Information - Narrative
Segment Information - Narrative (Details) | 12 Months Ended |
Sep. 30, 2022 state segment | |
Segment Reporting [Abstract] | |
Reportable segments | segment | 2 |
Number of states with operations | state | 8 |
Segment Information - Income St
Segment Information - Income Statements and Capital Expenditures By Segment (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Segment Reporting Information [Line Items] | |||
Operating revenues | $ 4,201,662 | $ 3,407,490 | $ 2,821,137 |
Purchased gas cost | 1,682,656 | 1,032,717 | 658,854 |
Operation and maintenance expense | 710,161 | 679,019 | 629,601 |
Depreciation and amortization expense | 535,655 | 477,977 | 429,828 |
Taxes, other than income | 352,208 | 312,779 | 278,755 |
Operating income | 920,982 | 904,998 | 824,099 |
Other non-operating income (expense) | 33,737 | (2,145) | 7,171 |
Interest charges | 102,811 | 83,554 | 84,474 |
Income before income taxes | 851,908 | 819,299 | 746,796 |
Income tax expense | 77,510 | 153,736 | 145,353 |
Net income | 774,398 | 665,563 | 601,443 |
Capital expenditures | 2,444,420 | 1,969,540 | 1,935,676 |
Distribution | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | 4,031,936 | 3,238,753 | 2,624,251 |
Pipeline and Storage | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | 169,726 | 168,737 | 196,886 |
Operating Segments | Distribution | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | 4,035,194 | 3,241,973 | 2,626,993 |
Purchased gas cost | 2,210,302 | 1,501,695 | 1,071,227 |
Operation and maintenance expense | 518,443 | 501,209 | 472,760 |
Depreciation and amortization expense | 387,858 | 345,481 | 309,582 |
Taxes, other than income | 314,046 | 275,074 | 245,181 |
Operating income | 604,545 | 618,514 | 528,243 |
Other non-operating income (expense) | 6,946 | (20,694) | (1,265) |
Interest charges | 49,921 | 36,629 | 39,634 |
Income before income taxes | 561,570 | 561,191 | 487,344 |
Income tax expense | 39,593 | 115,329 | 91,680 |
Net income | 521,977 | 445,862 | 395,664 |
Capital expenditures | 1,675,798 | 1,454,195 | 1,466,631 |
Operating Segments | Pipeline and Storage | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | 693,660 | 637,347 | 609,339 |
Purchased gas cost | (1,583) | 1,582 | 1,548 |
Operation and maintenance expense | 192,847 | 179,080 | 158,115 |
Depreciation and amortization expense | 147,797 | 132,496 | 120,246 |
Taxes, other than income | 38,162 | 37,705 | 33,574 |
Operating income | 316,437 | 286,484 | 295,856 |
Other non-operating income (expense) | 26,791 | 18,549 | 8,436 |
Interest charges | 52,890 | 46,925 | 44,840 |
Income before income taxes | 290,338 | 258,108 | 259,452 |
Income tax expense | 37,917 | 38,407 | 53,673 |
Net income | 252,421 | 219,701 | 205,779 |
Capital expenditures | 768,622 | 515,345 | 469,045 |
Eliminations | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | (527,192) | (471,830) | (415,195) |
Purchased gas cost | (526,063) | (470,560) | (413,921) |
Operation and maintenance expense | (1,129) | (1,270) | (1,274) |
Depreciation and amortization expense | 0 | 0 | 0 |
Taxes, other than income | 0 | 0 | 0 |
Operating income | 0 | 0 | 0 |
Other non-operating income (expense) | 0 | 0 | 0 |
Interest charges | 0 | 0 | 0 |
Income before income taxes | 0 | 0 | 0 |
Income tax expense | 0 | 0 | 0 |
Net income | 0 | 0 | 0 |
Capital expenditures | 0 | 0 | 0 |
Eliminations | Distribution | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | 3,258 | 3,220 | 2,742 |
Eliminations | Pipeline and Storage | |||
Segment Reporting Information [Line Items] | |||
Operating revenues | $ 523,934 | $ 468,610 | $ 412,453 |
Segment Information - Revenue f
Segment Information - Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | $ 4,201,662 | $ 3,407,490 | $ 2,821,137 |
Distribution | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 4,031,936 | 3,238,753 | 2,624,251 |
Distribution | Gas sales revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 3,909,893 | 3,119,194 | 2,503,681 |
Distribution | Transportation revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 110,905 | 105,554 | 97,441 |
Distribution | Other gas revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 11,138 | 14,005 | 23,129 |
Distribution | Residential | Gas sales revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 2,492,116 | 2,117,272 | 1,717,070 |
Distribution | Commercial | Gas sales revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 1,126,189 | 838,382 | 654,963 |
Distribution | Industrial | Gas sales revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 224,632 | 113,171 | 89,641 |
Distribution | Public authority and other | Gas sales revenues | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | 66,956 | 50,369 | 42,007 |
Pipeline and Storage | |||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Operating revenues | $ 169,726 | $ 168,737 | $ 196,886 |
Segment Information - Balance S
Segment Information - Balance Sheet Information by Segment (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Segment Reporting Information [Line Items] | ||
Property, plant and equipment, net | $ 17,240,239 | $ 15,063,970 |
Total assets | 22,192,989 | 19,608,662 |
Operating Segments | Distribution | ||
Segment Reporting Information [Line Items] | ||
Property, plant and equipment, net | 12,723,532 | 11,232,649 |
Total assets | 21,424,586 | 18,847,266 |
Operating Segments | Pipeline and Storage | ||
Segment Reporting Information [Line Items] | ||
Property, plant and equipment, net | 4,516,707 | 3,831,321 |
Total assets | 4,797,206 | 4,076,844 |
Eliminations | ||
Segment Reporting Information [Line Items] | ||
Property, plant and equipment, net | 0 | 0 |
Total assets | $ (4,028,803) | $ (3,315,448) |
Earnings Per Share (Details)
Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Basic Earnings Per Share | |||
Net income | $ 774,398 | $ 665,563 | $ 601,443 |
Less: Income allocated to participating securities | 508 | 465 | 444 |
Net income available to common shareholders | $ 773,890 | $ 665,098 | $ 600,999 |
Basic weighted average shares outstanding (in shares) | 137,830 | 129,779 | 122,788 |
Net income per share — Basic (USD per share) | $ 5.61 | $ 5.12 | $ 4.89 |
Diluted Earnings Per Share | |||
Net income available to common shareholders | $ 773,890 | $ 665,098 | $ 600,999 |
Effect of dilutive shares | 0 | 0 | 0 |
Net income available to common shareholders | $ 773,890 | $ 665,098 | $ 600,999 |
Basic weighted average shares outstanding (in shares) | 137,830 | 129,779 | 122,788 |
Dilutive shares (in shares) | 266 | 55 | 84 |
Diluted weighted average shares outstanding (in shares) | 138,096 | 129,834 | 122,872 |
Net income per share — Diluted (USD per share) | $ 5.60 | $ 5.12 | $ 4.89 |
Revenue and Accounts Receivab_3
Revenue and Accounts Receivable - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Disaggregation of Revenue [Line Items] | |||
Total operating revenues | $ 4,201,662 | $ 3,407,490 | $ 2,821,137 |
Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Total operating revenues | 4,031,936 | 3,238,753 | 2,624,251 |
Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Total operating revenues | $ 169,726 | 168,737 | 196,886 |
Regulatory mechanism threshold (in percent) | 75% | ||
Operating Segments | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | $ 4,007,226 | 3,253,298 | 2,604,166 |
Alternative revenue program revenues | 26,041 | (13,303) | 20,856 |
Other revenues | 1,927 | 1,978 | 1,971 |
Total operating revenues | 4,035,194 | 3,241,973 | 2,626,993 |
Operating Segments | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 720,884 | 660,557 | 646,573 |
Alternative revenue program revenues | (27,224) | (23,210) | (37,234) |
Other revenues | 0 | 0 | 0 |
Total operating revenues | 693,660 | 637,347 | 609,339 |
Operating Segments | Gas sales revenues | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 3,883,901 | 3,134,505 | 2,485,646 |
Operating Segments | Gas sales revenues | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 0 | 0 | 0 |
Operating Segments | Gas sales revenues | Residential | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 2,472,461 | 2,129,704 | 1,704,444 |
Operating Segments | Gas sales revenues | Residential | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 0 | 0 | 0 |
Operating Segments | Gas sales revenues | Commercial | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 1,120,322 | 841,145 | 650,396 |
Operating Segments | Gas sales revenues | Commercial | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 0 | 0 | 0 |
Operating Segments | Gas sales revenues | Industrial | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 224,427 | 113,091 | 89,467 |
Operating Segments | Gas sales revenues | Industrial | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 0 | 0 | 0 |
Operating Segments | Gas sales revenues | Public authority and other | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 66,691 | 50,565 | 41,339 |
Operating Segments | Gas sales revenues | Public authority and other | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 0 | 0 | 0 |
Operating Segments | Transportation revenues | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 113,043 | 107,822 | 99,435 |
Operating Segments | Transportation revenues | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 707,205 | 646,416 | 636,819 |
Operating Segments | Miscellaneous revenues | Distribution | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | 10,282 | 10,971 | 19,085 |
Operating Segments | Miscellaneous revenues | Pipeline and Storage | |||
Disaggregation of Revenue [Line Items] | |||
Revenues from contracts with customers | $ 13,679 | $ 14,141 | $ 9,754 |
Revenue and Accounts Receivab_4
Revenue and Accounts Receivable - Rollforward of Allowance for Doubtful Accounts (Details) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 USD ($) state | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | |
Revenue from Contract with Customer [Abstract] | |||
Number of states excluded due to gas cost recovery mechanisms | state | 5 | ||
Percent of customers excluded due to gas cost recovery mechanisms | 81% | ||
Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |||
Beginning balance | $ 64,471 | $ 29,949 | $ 15,899 |
Current period provisions | 16,576 | 43,807 | 24,796 |
Write-offs charged against allowance | (32,885) | (11,019) | (12,698) |
Recoveries of amounts previously written off | 1,831 | 1,734 | 1,952 |
Ending balance | $ 49,993 | $ 64,471 | $ 29,949 |
Leases - Weighted Averages (Det
Leases - Weighted Averages (Details) | Sep. 30, 2022 | Sep. 30, 2021 |
Leases [Abstract] | ||
Finance leases, weighted average remaining lease term (years) | 18 years 8 months 12 days | 19 years |
Operating leases, weighted average remaining lease term (years) | 9 years 8 months 12 days | 10 years 2 months 12 days |
Finance leases, weighted average discount rate (in percent) | 4% | 5.70% |
Operating leases, weighted average discount rate (in percent) | 2.90% | 2.80% |
Leases - Lease Cost (Details)
Leases - Lease Cost (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Lessee, Finance Lease, Description [Abstract] | |||
Finance lease cost | $ 4,314 | $ 1,334 | $ 622 |
Operating lease cost | 43,394 | 42,349 | 40,887 |
Total lease cost | $ 47,708 | $ 43,683 | $ 41,509 |
Leases - ROU Assets and Lease L
Leases - ROU Assets and Lease Liabilities (Details) $ in Thousands | Sep. 30, 2022 USD ($) serviceCenter | Sep. 30, 2021 USD ($) |
Assets | ||
Finance leases | $ 50,118 | $ 18,252 |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Public Utilities, Property, Plant and Equipment, Net | Public Utilities, Property, Plant and Equipment, Net |
Operating leases | $ 214,663 | $ 222,446 |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Deferred charges and other assets (See Note 9) | Deferred charges and other assets (See Note 9) |
Total right-of-use assets | $ 264,781 | $ 240,698 |
Current | ||
Finance leases | $ 1,457 | $ 452 |
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Current maturities of long-term debt | Current maturities of long-term debt |
Operating leases | $ 38,644 | $ 37,688 |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Other current liabilities | Other current liabilities |
Noncurrent | ||
Finance leases | $ 50,393 | $ 18,287 |
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Long-term debt | Long-term debt |
Operating leases | $ 184,301 | $ 194,745 |
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Deferred credits and other liabilities | Deferred credits and other liabilities |
Total | $ 274,795 | $ 251,172 |
Number of buildings leased | serviceCenter | 2 | |
Total future lease payments | $ 48,100 |
Leases - Other Pertinent Inform
Leases - Other Pertinent Information (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Leases [Abstract] | |||
Operating cash flows used for operating leases | $ 45,080 | $ 42,013 | $ 37,758 |
Right-of-use assets obtained in exchange for lease obligations | |||
Finance leases | 33,833 | 10,333 | 6,083 |
Operating leases | $ 28,310 | $ 25,690 | $ 34,169 |
Leases - Maturities of Lease Li
Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Leases [Abstract] | ||
2023 | $ 46,417 | |
2024 | 39,832 | |
2025 | 30,612 | |
2026 | 24,141 | |
2027 | 21,322 | |
Thereafter | 170,704 | |
Total lease payments | 333,028 | |
Less: Imputed interest | 58,233 | |
Total | 274,795 | $ 251,172 |
Short-term lease liabilities | 40,101 | |
Long-term lease liabilities | 234,694 | |
Finance Leases | ||
2023 | 3,313 | |
2024 | 3,375 | |
2025 | 3,438 | |
2026 | 3,502 | |
2027 | 3,568 | |
Thereafter | 55,997 | |
Total lease payments | 73,193 | |
Less: Imputed interest | 21,343 | |
Total | 51,850 | 18,739 |
Short-term lease liabilities | 1,457 | 452 |
Long-term lease liabilities | 50,393 | 18,287 |
Finance Leases | ||
2023 | 43,104 | |
2024 | 36,457 | |
2025 | 27,174 | |
2026 | 20,639 | |
2027 | 17,754 | |
Thereafter | 114,707 | |
Total lease payments | 259,835 | |
Less: Imputed interest | 36,890 | |
Total | 222,945 | |
Short-term lease liabilities | 38,644 | 37,688 |
Long-term lease liabilities | $ 184,301 | $ 194,745 |
Debt - Schedule of Long-term De
Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Debt Instrument [Line Items] | ||
Long term debt | $ 7,960,000 | |
Finance lease obligations (see Note 6) | 51,850 | $ 18,739 |
Total long-term debt | 8,011,850 | 7,378,739 |
Less: | ||
Net original issue discount on unsecured senior notes and debentures | 3,704 | 2,811 |
Debt issuance cost | 46,042 | 45,271 |
Current maturities | 2,201,457 | 2,400,452 |
Long-term debt, noncurrent | $ 5,760,647 | 4,930,205 |
Unsecured 0.625% Senior Notes, due March 2023 | ||
Debt Instrument [Line Items] | ||
Interest rate | 0.625% | |
Long term debt | $ 1,100,000 | 1,100,000 |
Unsecured 3.00% Senior Notes, due June 2027 | ||
Debt Instrument [Line Items] | ||
Interest rate | 3% | |
Long term debt | $ 500,000 | 500,000 |
Unsecured 2.625% Senior Notes, due September 2029 | ||
Debt Instrument [Line Items] | ||
Interest rate | 2.625% | |
Long term debt | $ 500,000 | 300,000 |
Unsecured 1.50% Senior Notes, due January 2031 | ||
Debt Instrument [Line Items] | ||
Interest rate | 1.50% | |
Long term debt | $ 600,000 | 600,000 |
Unsecured 5.95% Senior Notes, due October 2034 | ||
Debt Instrument [Line Items] | ||
Interest rate | 5.95% | |
Long term debt | $ 200,000 | 200,000 |
Unsecured 5.50% Senior Notes, due June 2041 | ||
Debt Instrument [Line Items] | ||
Interest rate | 5.50% | |
Long term debt | $ 400,000 | 400,000 |
Unsecured 4.15% Senior Notes, due January 2043 | ||
Debt Instrument [Line Items] | ||
Interest rate | 4.15% | |
Long term debt | $ 500,000 | 500,000 |
Unsecured 4.125% Senior Notes, due October 2044 | ||
Debt Instrument [Line Items] | ||
Interest rate | 4.125% | |
Long term debt | $ 750,000 | 750,000 |
Unsecured 4.30% Senior Notes, due October 2048 | ||
Debt Instrument [Line Items] | ||
Interest rate | 4.30% | |
Long term debt | $ 600,000 | 600,000 |
Unsecured 4.125% Senior Notes, due March 2049 | ||
Debt Instrument [Line Items] | ||
Interest rate | 4.125% | |
Long term debt | $ 450,000 | 450,000 |
Unsecured 3.375% Senior Notes, due September 2049 | ||
Debt Instrument [Line Items] | ||
Interest rate | 3.375% | |
Long term debt | $ 500,000 | 500,000 |
Unsecured 2.85% Senior Notes, due February 2052 | ||
Debt Instrument [Line Items] | ||
Interest rate | 2.85% | |
Long term debt | $ 600,000 | 0 |
Floating-rate term loan, due April 2022 | ||
Debt Instrument [Line Items] | ||
Long term debt | 0 | 200,000 |
Floating-rate Senior Notes, due March 2023 | ||
Debt Instrument [Line Items] | ||
Long term debt | $ 1,100,000 | 1,100,000 |
Medium term Series A notes, 1995-1, 6.67%, due December 2025 | ||
Debt Instrument [Line Items] | ||
Interest rate | 6.67% | |
Long term debt | $ 10,000 | 10,000 |
Unsecured 6.75% Debentures, due July 2028 | ||
Debt Instrument [Line Items] | ||
Interest rate | 6.75% | |
Long term debt | $ 150,000 | $ 150,000 |
Debt - Schedule of Maturities o
Debt - Schedule of Maturities of Long-term Debt (Details) $ in Thousands | Sep. 30, 2022 USD ($) |
Debt Disclosure [Abstract] | |
2023 | $ 2,200,000 |
2024 | 0 |
2025 | 0 |
2026 | 10,000 |
2027 | 500,000 |
Thereafter | 5,250,000 |
Total long-term debt | $ 7,960,000 |
Debt - Narrative (Details)
Debt - Narrative (Details) | 1 Months Ended | 12 Months Ended | ||||||||||||
Oct. 03, 2022 USD ($) | Apr. 01, 2022 USD ($) | Mar. 31, 2022 USD ($) | Jan. 18, 2022 USD ($) | Oct. 01, 2021 USD ($) | Mar. 09, 2021 USD ($) | Oct. 01, 2020 USD ($) | Oct. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) creditFacility | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Jan. 14, 2022 USD ($) | Mar. 31, 2021 USD ($) | |
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from hedge | $ 197,073,000 | $ 62,159,000 | $ (4,426,000) | |||||||||||
Long term debt | $ 7,960,000,000 | |||||||||||||
Ratio of total debt to total capitalization maximum | 70% | |||||||||||||
Total-debt-to-total-capitalization ratio | 47% | |||||||||||||
Minimum | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Equity-to-capitalization ratio | 50% | |||||||||||||
Outstanding indebtedness | $ 15,000,000 | |||||||||||||
Maximum | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Equity-to-capitalization ratio | 60% | |||||||||||||
Outstanding indebtedness | $ 100,000,000 | |||||||||||||
Subsequent Event | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from hedge | $ 197,100,000 | |||||||||||||
Unsecured Senior Notes Due 2053 | Subsequent Event | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 500,000,000 | |||||||||||||
Interest rate | 5.75% | |||||||||||||
Effective rate | 4.504% | |||||||||||||
Unsecured Senior Notes Due 2033 | Subsequent Event | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 300,000,000 | |||||||||||||
Interest rate | 5.45% | |||||||||||||
Effective rate | 5.57% | |||||||||||||
Unsecured Senior Notes Due 2033 and Unsecured Senior Notes Due 2053 | Subsequent Event | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from issuance of debt | $ 789,400,000 | |||||||||||||
Unsecured 2.625% Senior Notes, due September 2029 | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 2.625% | |||||||||||||
Long term debt | $ 300,000,000 | $ 500,000,000 | 300,000,000 | |||||||||||
Unsecured 2.625% Senior Notes, due September 2029 | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 200,000,000 | |||||||||||||
Interest rate | 2.625% | |||||||||||||
Effective rate | 2.54% | |||||||||||||
Long term debt | $ 200,800,000 | |||||||||||||
Floating-rate term loan, due April 2022 | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long term debt | 200,000,000 | $ 0 | 200,000,000 | |||||||||||
Floating-rate term loan, due April 2022 | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Repayments of debt | $ 200,000,000 | |||||||||||||
Unsecured 2.85% Senior Notes, due February 2052 | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 2.85% | |||||||||||||
Long term debt | 0 | $ 600,000,000 | 0 | |||||||||||
Unsecured 2.85% Senior Notes, due February 2052 | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 600,000,000 | $ 1,100,000,000 | ||||||||||||
Interest rate | 2.85% | 0.625% | ||||||||||||
Effective rate | 2.58% | 0.834% | ||||||||||||
Proceeds from issuance of debt | $ 589,800,000 | 62,200,000 | ||||||||||||
Floating Rate Senior Notes Due 2023 | Senior Notes | London Interbank Offered Rate (LIBOR) | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 0.38% | |||||||||||||
Senior Notes Due 2023 | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 2,200,000,000 | $ 2,200,000,000 | ||||||||||||
Senior Notes Due 2023 | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from debt | $ 2,200,000,000 | |||||||||||||
Redemption price, percentage | 100% | |||||||||||||
Unsecured 1.50% Senior Notes, Due 2031 | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 600,000,000 | |||||||||||||
Interest rate | 1.50% | |||||||||||||
Effective rate | 1.71% | |||||||||||||
Proceeds from issuance of debt | $ 592,300,000 | |||||||||||||
Unsecured 1.50% Senior Notes, Due 2031 | Subsequent Event | Senior Notes | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt face amount | $ 800,000,000 | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Commercial paper | 0 | 185,000,000 | 0 | |||||||||||
Five Year Unsecured Revolving Credit Agreement | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Maximum borrowing capacity | $ 2,500,000,000 | |||||||||||||
Number of credit facilities | creditFacility | 4 | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Maximum borrowing capacity | $ 1,500,000,000 | $ 1,500,000,000 | ||||||||||||
Debt term | 5 years | |||||||||||||
Loan increase potential | 1,750,000,000 | |||||||||||||
Weighted average interest rate | 3.06% | |||||||||||||
Credit facility, accordion feature | $ 250,000,000 | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Weighted Average | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt term | 1 month | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Base Rate | Minimum | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 0% | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Base Rate | Maximum | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 25% | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Secured Overnight Financing Rate (SOFR) Rate | Minimum | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 75% | |||||||||||||
Five Year Unsecured Revolving Credit Agreement | Secured Overnight Financing Rate (SOFR) Rate | Maximum | Commercial Paper | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 125% | |||||||||||||
$900 Million Revolving Credit Facility | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Maximum borrowing capacity | $ 900,000,000 | $ 900,000,000 | ||||||||||||
Debt term | 3 years | |||||||||||||
Loan increase potential | $ 1,000,000,000 | |||||||||||||
Credit facility, accordion feature | $ 100,000,000 | |||||||||||||
Line of credit borrowings outstanding | 0 | 0 | 0 | |||||||||||
$900 Million Revolving Credit Facility | Base Rate | Minimum | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 0% | |||||||||||||
$900 Million Revolving Credit Facility | Base Rate | Maximum | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 25% | |||||||||||||
$900 Million Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Rate | Minimum | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 75% | |||||||||||||
$900 Million Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Rate | Maximum | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread percent | 125% | |||||||||||||
$50 Million Revolving Credit Facility | Line of Credit | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Maximum borrowing capacity | $ 50,000,000 | |||||||||||||
Debt term | 364 days | |||||||||||||
Line of credit borrowings outstanding | $ 0 | 0 | $ 0 | |||||||||||
$50 Million Revolving Credit Facility | Revolving Credit Facility | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Maximum borrowing capacity | $ 50,000,000 | |||||||||||||
Debt term | 364 days | |||||||||||||
Line of credit borrowings outstanding | 0 | |||||||||||||
Remaining borrowing capacity | $ 44,400,000 |
Shareholders' Equity - Narrativ
Shareholders' Equity - Narrative (Details) - USD ($) | 12 Months Ended | ||||||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Oct. 03, 2022 | Mar. 23, 2022 | Jun. 29, 2021 | Oct. 01, 2020 | |
Class of Stock [Line Items] | |||||||
Forward sales equity agreement, settlement in cash | $ 776,643,000 | ||||||
Net proceeds from equity offering | 776,805,000 | $ 606,667,000 | $ 624,302,000 | ||||
Senior Notes | Unsecured 1.50% Senior Notes, Due 2031 | |||||||
Class of Stock [Line Items] | |||||||
Debt face amount | $ 600,000,000 | ||||||
Senior Notes | Unsecured 1.50% Senior Notes, Due 2031 | Subsequent Event | |||||||
Class of Stock [Line Items] | |||||||
Debt face amount | $ 800,000,000 | ||||||
Shelf Registration Statement | |||||||
Class of Stock [Line Items] | |||||||
Debt and equity securities authorized for issuance | $ 5,000,000,000 | ||||||
Debt and equity securities authorized for issuance value remaining | $ 2,200,000,000 | ||||||
Shelf Registration Statement | Subsequent Event | |||||||
Class of Stock [Line Items] | |||||||
Debt and equity securities authorized for issuance value remaining | $ 1,400,000,000 | ||||||
At-The-Market | |||||||
Class of Stock [Line Items] | |||||||
Value of shares authorized for issuance | $ 1,000,000,000 | ||||||
Forward sales equity agreement, shares (in shares) | 11,862,319 | ||||||
Forward sales equity agreement, settlement in cash | $ 1,300,000,000 | ||||||
Shares issued (in shares) | 7,907,883 | ||||||
Net proceeds from equity offering | $ 776,800,000 | ||||||
Value of shares available for issuance | $ 481,700,000 |
Shareholders' Equity - Schedule
Shareholders' Equity - Schedule of Forward Sales Executed (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |
Sep. 30, 2022 USD ($) $ / shares shares | |
Forward Contract Indexed to Issuer's Equity [Line Items] | |
Shares available (in shares) | shares | 7,026,160 |
Net proceeds available | $ | $ 776,643 |
Forward price (USD per share) | $ / shares | $ 110.54 |
Forward Sales Equity Agreement Maturing September 29, 2023 | |
Forward Contract Indexed to Issuer's Equity [Line Items] | |
Shares available (in shares) | shares | 4,552,157 |
Net proceeds available | $ | $ 492,015 |
Forward price (USD per share) | $ / shares | $ 108.08 |
Forward Sales Equity Agreement Maturing December 29, 2023 | |
Forward Contract Indexed to Issuer's Equity [Line Items] | |
Shares available (in shares) | shares | 919,898 |
Net proceeds available | $ | $ 105,451 |
Forward price (USD per share) | $ / shares | $ 114.63 |
Forward Sales Equity Agreement Maturing March 28, 2024 | |
Forward Contract Indexed to Issuer's Equity [Line Items] | |
Shares available (in shares) | shares | 1,554,105 |
Net proceeds available | $ | $ 179,177 |
Forward price (USD per share) | $ / shares | $ 115.29 |
Shareholders' Equity - Schedu_2
Shareholders' Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
AOCI Attributable to Parent, Net of Tax [Roll Forward] | |||
Shareholders' equity, beginning balance | $ 7,906,889 | $ 6,791,203 | $ 5,750,223 |
Other comprehensive income (loss) before reclassifications | 296,333 | 122,826 | |
Amounts reclassified from accumulated other comprehensive income | 2,976 | 4,566 | |
Net current-period other comprehensive income (loss) | 299,309 | 127,392 | 56,994 |
Shareholders' equity, ending balance | 9,419,091 | 7,906,889 | 6,791,203 |
Available- for-Sale Securities | |||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | |||
Shareholders' equity, beginning balance | 47 | 238 | |
Other comprehensive income (loss) before reclassifications | (542) | (191) | |
Amounts reclassified from accumulated other comprehensive income | 0 | 0 | |
Net current-period other comprehensive income (loss) | (542) | (191) | |
Shareholders' equity, ending balance | (495) | 47 | 238 |
Interest Rate Agreement Cash Flow Hedges | |||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | |||
Shareholders' equity, beginning balance | 69,756 | (57,827) | |
Other comprehensive income (loss) before reclassifications | 296,875 | 123,017 | |
Amounts reclassified from accumulated other comprehensive income | 2,976 | 4,566 | |
Net current-period other comprehensive income (loss) | 299,851 | 127,583 | |
Shareholders' equity, ending balance | 369,607 | 69,756 | (57,827) |
Accumulated Other Comprehensive Income (Loss) | |||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | |||
Shareholders' equity, beginning balance | 69,803 | (57,589) | (114,583) |
Net current-period other comprehensive income (loss) | 299,309 | 127,392 | 56,994 |
Shareholders' equity, ending balance | $ 369,112 | $ 69,803 | $ (57,589) |
Winter Storm Uri (Details)
Winter Storm Uri (Details) - USD ($) $ in Thousands | 1 Months Ended | |||||||
Oct. 25, 2022 | Feb. 28, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 14, 2021 | Jul. 30, 2021 | Mar. 31, 2021 | Mar. 09, 2021 | |
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Aggregate natural gas purchases | $ 2,300,000 | |||||||
Regulatory assets | $ 2,605,372 | $ 2,521,441 | ||||||
Winter Storm Uri incremental costs | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | 2,109,454 | $ 2,100,728 | ||||||
Winter Storm Uri incremental costs | Winter Storm Uri | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | 2,100,000 | |||||||
Winter Storm Uri incremental costs | Kansas | Winter Storm Uri | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | 88,500 | |||||||
Winter Storm Uri incremental costs | Texas | Winter Storm Uri | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | $ 2,021,000 | |||||||
Extraordinary Gas Cost | Kansas | Subsequent Event | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory asset, authorized | $ 118,500 | |||||||
Regulatory asset, amortization period | 12 years | |||||||
Extraordinary Gas Cost | Kansas | Winter Storm Uri | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | $ 94,100 | |||||||
Extraordinary Gas Cost | Texas | Winter Storm Uri | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Regulatory assets | $ 2,000,000 | |||||||
Senior Notes Due 2023 | ||||||||
Unusual or Infrequent Item, or Both [Line Items] | ||||||||
Debt instrument, face amount | $ 2,200,000 | $ 2,200,000 | ||||||
Administrative costs | $ 600 |
Retirement and Postretirement_3
Retirement and Postretirement Employee Benefit Plans - Narrative (Details) $ in Thousands | 12 Months Ended | ||||||
Oct. 01, 2022 | Jan. 01, 2022 | Jan. 01, 2021 | Dec. 31, 2020 | Sep. 30, 2022 USD ($) plan shares | Sep. 30, 2021 USD ($) shares | Sep. 30, 2020 USD ($) | |
Defined Benefit Plan Disclosure [Line Items] | |||||||
Recovery period | 15 years | ||||||
Supplemental Executive Retirement Plans | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Employer contributions | $ 4,831 | $ 30,418 | |||||
Settlement charge | 0 | (9,151) | $ (9,180) | ||||
Lump sum settlement | 0 | 25,698 | |||||
Assets held-in-trust | 30,200 | 38,100 | |||||
Postretirement Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Employer contributions | $ 14,749 | 20,581 | |||||
Percent of projected claims paid | 80% | ||||||
Remaining percent of claims paid by participant | 20% | ||||||
Employer contribution limit | 3% | ||||||
Employer contribution limit removal | 3% | ||||||
Postretirement Plan | Minimum | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Expected contribution amount | $ 15,000 | ||||||
Postretirement Plan | Maximum | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Expected contribution amount | $ 25,000 | ||||||
Employee Pension Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Vesting period | 3 years | ||||||
Employer contributions | $ 8,500 | 10,000 | |||||
Accounts receivable | $ 2,400 | $ 2,100 | |||||
Employee Pension Plan | Minimum | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Medium-term horizon | 3 years | ||||||
Employee Pension Plan | Maximum | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Medium-term horizon | 5 years | ||||||
Company stock | Employee Pension Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Shares held by plan (in shares) | shares | 716,700 | 716,700 | |||||
Percent of plan assets | 15.30% | 10.60% | |||||
Dividend income | $ 1,900 | $ 1,800 | |||||
Diversified investment funds | Postretirement Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Percent of plan assets | 97.70% | 97.90% | |||||
Maximum investment percent | 75% | ||||||
Supplemental Executive Benefit Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Number of nonqualified supplemental plans offered | plan | 3 | ||||||
Supplemental Executive Benefit Plan | Supplemental Executive Retirement Plans | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Percent of covered compensation | 75% | ||||||
1998 Supplemental Executive Retirement Plan, Defined Benefit | Supplemental Executive Retirement Plans | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Percent of covered compensation | 60% | ||||||
2009 Supplemental Executive Retirement Plan, Defined Benefit | Supplemental Executive Retirement Plans | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Vesting period | 3 years | ||||||
Contribution percent | 10% | ||||||
Contribution percent for members | 25% | ||||||
Attainment age | 55 years | ||||||
Retirement Savings Plan | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Maximum of eligible compensation | 65% | ||||||
New employee contribution percentage | 4% | ||||||
Percent of employee contribution | 100% | ||||||
Employer matching, percent of employee salary | 4% | ||||||
Years of service | 1 year | 1 year | |||||
Fixed annual contribution percent | 4% | ||||||
Years of service vesting period | 3 years | ||||||
Contribution plan cost | $ 21,900 | $ 20,600 | $ 17,900 | ||||
Percent of common stock outstanding | 1.60% | 1.90% | |||||
Retirement Savings Plan | Subsequent Event | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Employer matching, percent of employee salary | 10% | ||||||
Automatic increase feature | 1% | ||||||
Executive Officer | Supplemental Executive Retirement Plans | |||||||
Defined Benefit Plan Disclosure [Line Items] | |||||||
Settlement charge | $ (9,200) | ||||||
Lump sum settlement | $ 25,700 |
Retirement and Postretirement_4
Retirement and Postretirement Employee Benefit Plans - Schedule of Net Periodic Benefit Cost Not yet Recognized (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Unrecognized prior service credit | Supplemental Executive Retirement Plans | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | $ 0 | $ 0 |
Unrecognized actuarial (gain) loss | Supplemental Executive Retirement Plans | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | 14,029 | 39,666 |
Total unrecognized in net periodic pension cost | Supplemental Executive Retirement Plans | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | 14,029 | 39,666 |
Unrecognized prior service credit | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (51,200) | (64,666) |
Unrecognized prior service credit | Employee Pension Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (121) | (353) |
Unrecognized prior service credit | Postretirement Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (51,079) | (64,313) |
Unrecognized actuarial (gain) loss | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (105,657) | 8,465 |
Unrecognized actuarial (gain) loss | Employee Pension Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (32,159) | (3,060) |
Unrecognized actuarial (gain) loss | Postretirement Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (87,527) | (28,141) |
Total unrecognized in net periodic pension cost | Employee Pension Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (32,280) | (3,413) |
Total unrecognized in net periodic pension cost | Postretirement Plan | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | (138,606) | (92,454) |
Total unrecognized in net periodic pension cost | Pension and postretirement benefit costs | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Net regulatory assets | $ (156,857) | $ (56,201) |
Retirement and Postretirement_5
Retirement and Postretirement Employee Benefit Plans - Asset Allocation (Details) | Sep. 30, 2022 | Sep. 30, 2021 |
Employee Pension Plan | Domestic equities | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 39.70% | 44.50% |
Employee Pension Plan | Domestic equities | Minimum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 35% | |
Employee Pension Plan | Domestic equities | Maximum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 55% | |
Employee Pension Plan | International equities | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 14.60% | 16.90% |
Employee Pension Plan | International equities | Minimum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 10% | |
Employee Pension Plan | International equities | Maximum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 20% | |
Employee Pension Plan | Fixed income | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 16% | 16% |
Employee Pension Plan | Fixed income | Minimum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 5% | |
Employee Pension Plan | Fixed income | Maximum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 30% | |
Employee Pension Plan | Company stock | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 15.30% | 10.60% |
Employee Pension Plan | Company stock | Minimum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 0% | |
Employee Pension Plan | Company stock | Maximum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 15% | |
Employee Pension Plan | Other assets | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 14.40% | 12% |
Employee Pension Plan | Other assets | Minimum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 0% | |
Employee Pension Plan | Other assets | Maximum | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Targeted Allocation Range | 20% | |
Postretirement Plan | Diversified investment funds | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 97.70% | 97.90% |
Postretirement Plan | Cash and cash equivalents | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Asset allocation | 2.30% | 2.10% |
Retirement and Postretirement_6
Retirement and Postretirement Employee Benefit Plans - Schedule of Assumptions Used (Details) | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Employee Pension Plan | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Discount rate pension liability | 5.66% | 2.97% | |
Discount rate pension cost | 2.97% | 2.80% | 3.29% |
Rate of compensation increase pension liability | 3.50% | 3.50% | |
Rate of compensation increase pension cost | 3.50% | 3.50% | 3.50% |
Expected return on plan assets pension liability | 6.25% | 6.25% | |
Expected return on plan assets pension cost | 6.25% | 6.25% | 6.50% |
Interest crediting rate increase pension liability | 4.69% | 4.69% | |
Interest crediting rate increase pension cost | 4.69% | 4.69% | 4.69% |
Supplemental Executive Retirement Plans | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Discount rate pension liability | 5.71% | 2.57% | |
Discount rate pension cost | 2.57% | 2.90% | 3.19% |
Rate of compensation increase pension liability | 3.50% | 3.50% | |
Rate of compensation increase pension cost | 3.50% | 3.50% | 3.50% |
Interest crediting rate increase pension liability | 4.69% | 4.69% | |
Interest crediting rate increase pension cost | 4.69% | 4.69% | 4.69% |
Retirement and Postretirement_7
Retirement and Postretirement Employee Benefit Plans - Plans’ Accumulated Benefit Obligation, Projected Benefit Obligation and Funded Status (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Reconciliation: | |||
Net amount recognized | $ 29,498 | $ 0 | |
Employee Pension Plan | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Accumulated benefit obligation | 428,629 | 558,639 | |
Change in projected benefit obligation: | |||
Benefit obligation at beginning of year | 596,029 | 604,221 | |
Service cost | 16,165 | 17,369 | $ 17,551 |
Interest cost | 17,606 | 16,883 | 19,028 |
Actuarial gain | (141,567) | (7,561) | |
Benefits paid | (38,706) | (34,883) | |
Benefit obligation at end of year | 449,527 | 596,029 | 604,221 |
Change in plan assets: | |||
Fair value of plan assets at beginning of year | 596,806 | 528,881 | |
Actual return on plan assets | (87,575) | 92,808 | |
Employer contribution | 8,500 | 10,000 | |
Benefits paid | (38,706) | (34,883) | |
Fair value of plan assets at end of year | 479,025 | 596,806 | $ 528,881 |
Reconciliation: | |||
Funded status | 29,498 | 777 | |
Unrecognized prior service cost | 0 | 0 | |
Unrecognized net loss | 0 | 0 | |
Net amount recognized | $ 29,498 | $ 777 |
Retirement and Postretirement_8
Retirement and Postretirement Employee Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Employee Pension Plan | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other non-operating income (expense) | Other non-operating income (expense) | Other non-operating income (expense) |
Components of net periodic postretirement cost: | |||
Service cost | $ 16,165 | $ 17,369 | $ 17,551 |
Interest cost | 17,606 | 16,883 | 19,028 |
Expected return on assets | (29,531) | (27,913) | (28,316) |
Amortization of prior service credit | (231) | (231) | (231) |
Recognized actuarial loss | 4,638 | 8,686 | 9,025 |
Net periodic pension cost | $ 8,647 | $ 14,794 | $ 17,057 |
Supplemental Executive Retirement Plans | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other non-operating income (expense) | Other non-operating income (expense) | Other non-operating income (expense) |
Components of net periodic postretirement cost: | |||
Service cost | $ 1,129 | $ 1,067 | $ 1,074 |
Interest cost | 2,647 | 3,180 | 4,188 |
Recognized actuarial loss | 3,166 | 3,560 | 3,945 |
Settlements | 0 | 9,151 | 9,180 |
Net periodic pension cost | $ 6,942 | $ 16,958 | $ 18,387 |
Postretirement Plan | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other non-operating income (expense) | Other non-operating income (expense) | Other non-operating income (expense) |
Components of net periodic postretirement cost: | |||
Service cost | $ 10,235 | $ 11,000 | $ 13,466 |
Interest cost | 10,734 | 15,372 | 10,612 |
Expected return on assets | (13,249) | (10,455) | (10,499) |
Amortization of prior service credit | (13,234) | 30,533 | 173 |
Recognized actuarial loss | 0 | 1,172 | (1,337) |
Net periodic pension cost | $ (5,514) | $ 47,622 | $ 12,415 |
Retirement and Postretirement_9
Retirement and Postretirement Employee Benefit Plans - Schedule of Employee Pension Plans Investments at Fair Value (Details) - Employee Pension Plan - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 |
Derivatives, Fair Value [Line Items] | |||
Total investments | $ 479,025 | $ 596,806 | $ 528,881 |
Fair Value, Recurring | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 476,642 | 594,730 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 318,420 | 372,861 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | Common stocks | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 210,325 | 239,166 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | Money market funds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 14,490 | 7,060 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | Registered investment companies | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 53,401 | 74,236 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | Mortgage-backed securities | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 14,175 | 14,048 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | U.S. treasuries | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 3,709 | 7,517 | |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 | Corporate bonds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 22,320 | 30,834 | |
Fair Value, Recurring | Level 1 | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 267,407 | 320,885 | |
Fair Value, Recurring | Level 1 | Common stocks | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 210,325 | 239,166 | |
Fair Value, Recurring | Level 1 | Money market funds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 1 | Registered investment companies | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 53,401 | 74,236 | |
Fair Value, Recurring | Level 1 | Mortgage-backed securities | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 1 | U.S. treasuries | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 3,681 | 7,483 | |
Fair Value, Recurring | Level 1 | Corporate bonds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 2 | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 51,013 | 51,976 | |
Fair Value, Recurring | Level 2 | Common stocks | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 2 | Money market funds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 14,490 | 7,060 | |
Fair Value, Recurring | Level 2 | Registered investment companies | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 2 | Mortgage-backed securities | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 14,175 | 14,048 | |
Fair Value, Recurring | Level 2 | U.S. treasuries | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 28 | 34 | |
Fair Value, Recurring | Level 2 | Corporate bonds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 22,320 | 30,834 | |
Fair Value, Recurring | Level 3 | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | Common stocks | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | Money market funds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | Registered investment companies | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | Mortgage-backed securities | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | U.S. treasuries | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Level 3 | Corporate bonds | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Common/collective trusts | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | 86,891 | 121,570 | |
Fair Value, Recurring | Fair Value Measured at Net Asset Value Per Share | Limited partnerships | |||
Derivatives, Fair Value [Line Items] | |||
Total investments | $ 71,331 | $ 100,299 |
Retirement and Postretiremen_10
Retirement and Postretirement Employee Benefit Plans - Supplemental Plans’ Accumulated Benefit Obligation, Projected Benefit Obligation and Funded Status (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Reconciliation: | |||
Net amount recognized | $ 29,498 | $ 0 | |
Supplemental Executive Retirement Plans | |||
Defined Benefit Plan Disclosure [Line Items] | |||
Accumulated benefit obligation | 79,233 | 100,981 | |
Change in projected benefit obligation: | |||
Benefit obligation at beginning of year | 104,301 | 129,140 | |
Service cost | 1,129 | 1,067 | $ 1,074 |
Interest cost | 2,647 | 3,180 | 4,188 |
Actuarial (gain) loss | (22,471) | 1,332 | |
Benefits paid | (4,831) | (4,720) | |
Settlements | 0 | (25,698) | |
Benefit obligation at end of year | 80,775 | 104,301 | 129,140 |
Change in plan assets: | |||
Fair value of plan assets at beginning of year | 0 | 0 | |
Employer contribution | 4,831 | 30,418 | |
Benefits paid | (4,831) | (4,720) | |
Settlements | 0 | (25,698) | |
Fair value of plan assets at end of year | 0 | 0 | $ 0 |
Reconciliation: | |||
Funded status | (80,775) | (104,301) | |
Unrecognized prior service cost | 0 | 0 | |
Unrecognized net loss | 0 | 0 | |
Net amount recognized | $ (80,775) | $ (104,301) |
Retirement and Postretiremen_11
Retirement and Postretirement Employee Benefit Plans - Schedule of Expected Benefit Payments Defined Benefit Plan (Details) $ in Thousands | Sep. 30, 2022 USD ($) |
Employee Pension Plan | |
Defined Benefit Plan Disclosure [Line Items] | |
2023 | $ 40,569 |
2024 | 40,126 |
2025 | 40,396 |
2026 | 41,611 |
2027 | 41,358 |
2028-2032 | 198,156 |
Supplemental Executive Retirement Plans | |
Defined Benefit Plan Disclosure [Line Items] | |
2023 | 9,995 |
2024 | 9,538 |
2025 | 30,135 |
2026 | 6,594 |
2027 | 3,946 |
2028-2032 | $ 27,420 |
Retirement and Postretiremen_12
Retirement and Postretirement Employee Benefit Plans - Actuarial Assumptions For Net Periodic Pension Cost (Details) - Postretirement Plan | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Defined Benefit Plan Disclosure [Line Items] | |||
Discount rate pension liability | 5.61% | 3.01% | |
Discount rate postretirement cost | 3.01% | 2.80% | 3.29% |
Expected return on plan assets pension liability | 4.94% | 4.94% | |
Expected return on plan assets postretirement cost | 4.94% | 4.94% | 5.14% |
Initial trend rate Pension Liability | 6.25% | 6.25% | |
Initial trend rate Postretirement Cost | 6.25% | 6.25% | 6.25% |
Ultimate trend rate Pension Liability | 4.75% | 5% | |
Ultimate trend rate Postretirement Cost | 5% | 5% | 5% |
Retirement and Postretiremen_13
Retirement and Postretirement Employee Benefit Plans - Postretirement Plans’ Accumulated Benefit Obligation, Projected Benefit Obligation and Funded Status (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Change in projected benefit obligation: | |||
Plan amendments | $ 0 | $ (34,732) | |
Reconciliation: | |||
Net amount recognized | 29,498 | 0 | |
Postretirement Plan | |||
Change in projected benefit obligation: | |||
Benefit obligation at beginning of year | 355,156 | 370,678 | |
Service cost | 10,235 | 11,000 | $ 13,466 |
Interest cost | 10,734 | 15,372 | 10,612 |
Plan participants’ contributions | 3,210 | 5,648 | |
Actuarial (gain) loss | (112,748) | 6,800 | |
Benefits paid | (16,359) | (19,610) | |
Benefit obligation at end of year | 250,228 | 355,156 | 370,678 |
Change in plan assets: | |||
Fair value of plan assets at beginning of year | 268,199 | 208,245 | |
Actual return on plan assets | (40,113) | 53,335 | |
Employer contributions | 14,749 | 20,581 | |
Plan participants’ contributions | 3,210 | 5,648 | |
Benefits paid | (16,359) | (19,610) | |
Fair value of plan assets at end of year | 229,686 | 268,199 | $ 208,245 |
Reconciliation: | |||
Funded status | (20,542) | (86,957) | |
Unrecognized prior service cost | 0 | 0 | |
Unrecognized prior service cost | 0 | 0 | |
Unrecognized net loss | 0 | 0 | |
Net amount recognized | $ (20,542) | $ (86,957) |
Retirement and Postretiremen_14
Retirement and Postretirement Employee Benefit Plans - Schedule of Postretirement Benefit Plans Investments at Fair Value (Details) - Postretirement Plan - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | $ 229,686 | $ 268,199 | $ 208,245 |
Fair Value, Recurring | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 229,686 | 268,199 | |
Fair Value, Recurring | Level 1 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 224,472 | 262,672 | |
Fair Value, Recurring | Level 2 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 5,214 | 5,527 | |
Fair Value, Recurring | Level 3 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Money market funds | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 5,214 | 5,527 | |
Fair Value, Recurring | Money market funds | Level 1 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Money market funds | Level 2 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 5,214 | 5,527 | |
Fair Value, Recurring | Money market funds | Level 3 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Registered investment companies | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 224,472 | 262,672 | |
Fair Value, Recurring | Registered investment companies | Level 1 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 224,472 | 262,672 | |
Fair Value, Recurring | Registered investment companies | Level 2 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | 0 | 0 | |
Fair Value, Recurring | Registered investment companies | Level 3 | |||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |||
Total investments | $ 0 | $ 0 |
Retirement and Postretiremen_15
Retirement and Postretirement Employee Benefit Plans - Schedule of Expected Benefit Payments Post Retirement Benefit Plan (Details) - Postretirement Plan $ in Thousands | Sep. 30, 2022 USD ($) |
Company Payments | |
2023 | $ 17,141 |
2024 | 17,409 |
2025 | 17,582 |
2026 | 18,022 |
2027 | 18,269 |
2028-2032 | 94,528 |
Retiree Payments | |
2023 | 2,445 |
2024 | 2,410 |
2025 | 2,314 |
2026 | 2,282 |
2027 | 2,193 |
2028-2032 | 9,638 |
Subsidy Payments | |
2023 | 0 |
2024 | 0 |
2025 | 0 |
2026 | 0 |
2027 | 0 |
2028-2032 | 0 |
Total Postretirement Benefits | |
2023 | 19,586 |
2024 | 19,819 |
2025 | 19,896 |
2026 | 20,304 |
2027 | 20,462 |
2028-2032 | $ 104,166 |
Stock and Other Compensation _3
Stock and Other Compensation Plans - Narrative (Details) - USD ($) | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Share-Based Payment Arrangement [Abstract] | |||
Stock-based compensation cost | $ 22,200,000 | $ 24,100,000 | $ 21,100,000 |
Capitalized stock-based compensation cost | $ 11,500,000 | 12,900,000 | 11,600,000 |
Maximum shares authorized (in shares) | 11,200,000 | ||
Shares available for future issuance (in shares) | 900,000 | ||
Service period | 3 years | ||
Unrecognized compensation cost | $ 14,100,000 | ||
Cost recognition period | 1 year 4 months 24 days | ||
Fair value of restricted stock vested | $ 16,000,000 | $ 26,300,000 | $ 20,700,000 |
Minimum initial investment | 1,250 | ||
Minimum cash payments | 25 | ||
Maximum annual cash payments | $ 100,000 |
Stock and Other Compensation _4
Stock and Other Compensation Plans - Schedule of Activity (Details) - $ / shares | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Number of Restricted Units | |||
Nonvested at beginning of year (in shares) | 378,127 | 443,279 | 503,072 |
Granted (in shares) | 179,738 | 223,954 | 199,985 |
Vested (in shares) | (159,019) | (271,435) | (242,975) |
Forfeited (in shares) | (17,551) | (17,671) | (16,803) |
Nonvested at end of year (in shares) | 381,295 | 378,127 | 443,279 |
Weighted Average Grant-Date Fair Value | |||
Nonvested at beginning of year (USD per share) | $ 102.45 | $ 99.28 | $ 91.66 |
Granted (USD per share) | 108.07 | 102.68 | 102.34 |
Vested (USD per share) | 100.99 | 97.44 | 85.66 |
Forfeited (USD per share) | 103.37 | 101.48 | 96.87 |
Nonvested at end of year (USD per share) | $ 105.69 | $ 102.45 | $ 99.28 |
Details of Selected Consolida_3
Details of Selected Consolidated Balance Sheet Captions - Accounts Receivables (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019 |
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | $ 413,701 | $ 407,438 | ||
Less: allowance for uncollectible accounts | (49,993) | (64,471) | $ (29,949) | $ (15,899) |
Net accounts receivable | 363,708 | 342,967 | ||
Billed and Unbilled Receivables | Billed accounts receivable | ||||
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | 258,333 | 218,219 | ||
Billed and Unbilled Receivables | Unbilled revenue | ||||
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | 121,518 | 97,417 | ||
Contributions in aid of construction receivable | ||||
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | 5,390 | 18,984 | ||
Insurance receivable | ||||
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | 13,160 | 53,779 | ||
Other accounts receivable | ||||
Condensed Balance Sheet Statements, Captions [Line Items] | ||||
Total accounts receivable | $ 15,300 | $ 19,039 |
Details of Selected Consolida_4
Details of Selected Consolidated Balance Sheet Captions - Other Current Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Deferred gas costs | $ 119,742 | $ 66,395 |
Winter Storm Uri incremental costs | 2,020,954 | 2,011,719 |
Prepaid expenses | 58,551 | 48,766 |
Taxes receivable | 11,911 | 0 |
Materials and supplies | 25,880 | 15,581 |
Assets from risk management activities | 26,207 | 55,073 |
Other | 11,245 | 3,375 |
Total | $ 2,274,490 | $ 2,200,909 |
Details of Selected Consolida_5
Details of Selected Consolidated Balance Sheet Captions - Property, Plant and Equipment (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Storage plant | $ 589,210 | $ 539,972 |
Transmission plant | 4,325,540 | 3,725,347 |
Distribution plant | 13,511,409 | 12,085,654 |
General plant | 937,500 | 868,962 |
Intangible plant | 38,612 | 38,612 |
Property, plant and equipment | 19,402,271 | 17,258,547 |
Construction in progress | 835,868 | 626,551 |
Total property, plant and equipment and construction in progress | 20,238,139 | 17,885,098 |
Less: accumulated depreciation and amortization | (2,997,900) | (2,821,128) |
Net property, plant and equipment | 17,240,239 | 15,063,970 |
Plant acquisition adjustments | $ (26,600) | $ (28,500) |
Details of Selected Consolida_6
Details of Selected Consolidated Balance Sheet Captions - Deferred Charges and Other Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Marketable securities | $ 96,012 | $ 108,071 |
Regulatory assets (See Note 2) | 368,375 | 351,843 |
Operating lease right of use assets (See Note 6) | 214,663 | 222,446 |
Winter Storm Uri incremental costs | 88,500 | 89,009 |
Assets from risk management activities | 355,784 | 175,613 |
Pension assets | 29,498 | 0 |
Other | 20,968 | 27,738 |
Total | $ 1,173,800 | $ 974,720 |
Details of Selected Consolida_7
Details of Selected Consolidated Balance Sheet Captions - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Trade accounts payable | $ 258,506 | $ 224,873 |
Accrued gas payable | 157,942 | 100,699 |
Accrued liabilities | 79,571 | 97,650 |
Total | $ 496,019 | $ 423,222 |
Details of Selected Consolida_8
Details of Selected Consolidated Balance Sheet Captions - Other Current Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Customer credit balances and deposits | $ 56,016 | $ 49,722 |
Accrued employee costs | 47,661 | 50,517 |
Deferred gas costs | 28,834 | 52,553 |
Operating lease liabilities (See Note 6) | 38,644 | 37,688 |
Accrued interest | 59,542 | 55,164 |
Liabilities from risk management activities | 3,000 | 5,269 |
Taxes payable | 189,239 | 160,986 |
Pension and postretirement liabilities | 9,721 | 4,863 |
Regulatory cost of removal obligation | 80,676 | 72,823 |
APT annual adjustment mechanism | 18,034 | 22,694 |
Regulatory excess deferred taxes (See Note 14) | 159,808 | 155,857 |
Other | 28,982 | 18,545 |
Total | $ 720,157 | $ 686,681 |
Details of Selected Consolida_9
Details of Selected Consolidated Balance Sheet Captions - Deferred Credits and Other Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Balance Sheet Related Disclosures [Abstract] | ||
Pension and postretirement liabilities | $ 91,596 | $ 185,617 |
Operating lease liabilities (See Note 6) | 184,301 | 194,745 |
Customer advances for construction | 8,628 | 9,879 |
Other regulatory liabilities (See Note 2) | 178,990 | 75,506 |
Asset retirement obligation | 5,737 | 18,373 |
Liabilities from risk management activities | 1,129 | 0 |
APT annual adjustment mechanism | 13,104 | 8,416 |
Unrecognized tax benefits (See Note 14) | 39,908 | 32,792 |
Other | 14,909 | 12,161 |
Total | $ 538,302 | $ 537,489 |
Details of Selected Consolid_10
Details of Selected Consolidated Balance Sheet Captions - Other Non-Operating Income (Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Balance Sheet Related Disclosures [Abstract] | |||
Equity component of AFUDC | $ 45,505 | $ 32,749 | $ 23,493 |
Performance-based rate program | 8,327 | 6,362 | 6,771 |
Pension and other postretirement non-service credit (cost) | 8,337 | (19,238) | (3,189) |
Interest income | 2,781 | 2,144 | 2,932 |
Community support spending | (16,357) | (14,460) | (11,728) |
Unrealized losses on equity securities | (7,737) | (860) | (4,176) |
Miscellaneous | (7,119) | (8,842) | (6,932) |
Other non-operating income (expense) | $ 33,737 | $ (2,145) | $ 7,171 |
Details of Selected Consolid_11
Details of Selected Consolidated Balance Sheet Captions - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Balance Sheet Related Disclosures [Abstract] | |||
Interest | $ 234,297 | $ 207,555 | $ 194,993 |
Income taxes | 15,760 | 8,199 | (3,071) |
Capital expenditures included in current liabilities | 217,868 | 184,786 | 113,365 |
Interest paid, net of amount capitalized | $ 98,400 | $ 81,900 | $ 82,300 |
Commitments and Contingencies (
Commitments and Contingencies (Details) $ in Millions | 12 Months Ended | ||||
Feb. 08, 2021 USD ($) violation | Sep. 30, 2022 USD ($) $ / Mcf MMcf | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Jun. 28, 2021 civilAction | |
Long Term Purchase Commitment [Line Items] | |||||
Number of alleged violations | violation | 4 | ||||
Damages sought, value | $ | $ 1.6 | ||||
Number of civil actions | civilAction | 3 | ||||
Purchases under contract | $ | $ 352.6 | $ 149.4 | $ 58.5 | ||
Supply Commitment | |||||
Long Term Purchase Commitment [Line Items] | |||||
Contract term | 1 year | ||||
Purchase commitment volume | 13,200 | ||||
Supply Commitment | Weighted Average | |||||
Long Term Purchase Commitment [Line Items] | |||||
Fixed price contracts ( (USD per Mcf) | $ / Mcf | 5.39 | ||||
Supply Commitment | Short-term Contract with Customer | |||||
Long Term Purchase Commitment [Line Items] | |||||
Contract term | 1 year | ||||
Purchase commitment volume | 55,600 | ||||
Supply Commitment | Long-term Contract with Customer Within Two To Three Years | |||||
Long Term Purchase Commitment [Line Items] | |||||
Purchase commitment volume | 89,100 | ||||
Supply Commitment | Long-term Contract with Customer Within Two To Three Years | Minimum | |||||
Long Term Purchase Commitment [Line Items] | |||||
Contract term | 2 years | ||||
Supply Commitment | Long-term Contract with Customer Within Two To Three Years | Maximum | |||||
Long Term Purchase Commitment [Line Items] | |||||
Contract term | 3 years |
Income Taxes - Schedule of Comp
Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Current | |||
Federal | $ 2,849 | $ 0 | $ 0 |
State | 28,125 | 252 | 14,193 |
Deferred | |||
Federal | 43,435 | 128,867 | 143,039 |
State | 3,101 | 24,617 | (11,879) |
Income tax expense (benefit) | 77,510 | 153,736 | 145,353 |
Remeasurement due to state deferred tax rate change | $ 0 | $ 0 | $ 20,962 |
Income Taxes - Schedule of Effe
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Income Tax Disclosure [Abstract] | |||
Tax at statutory rate | $ 178,901 | $ 172,053 | $ 156,827 |
Common stock dividends deductible for tax reporting | (1,355) | (1,372) | (1,419) |
State taxes (net of federal benefit) | 24,669 | 19,647 | 22,791 |
Amortization of excess deferred taxes | (127,193) | (45,382) | (16,125) |
Remeasurement due to state deferred tax rate change | 0 | 0 | (20,962) |
Other, net | 2,488 | 8,790 | 4,241 |
Income tax expense (benefit) | $ 77,510 | $ 153,736 | $ 145,353 |
Income Taxes - Schedule of Defe
Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Deferred tax assets: | ||
Employee benefit plans | $ 57,094 | $ 64,316 |
Net operating loss carryforwards | 485,061 | 911,424 |
Charitable and other credit carryforwards | 1,903 | 7,712 |
Regulatory excess deferred tax | 110,548 | 148,200 |
Lease asset | 50,007 | 52,138 |
Other | 44,035 | 33,591 |
Total deferred tax assets | 748,648 | 1,217,381 |
Valuation allowance | (523) | (663) |
Net deferred tax assets | 748,125 | 1,216,718 |
Deferred tax liabilities: | ||
Difference in net book value and net tax value of assets | (2,431,757) | (2,258,264) |
Gas cost adjustments | (43,964) | (26,413) |
Winter Storm Uri regulatory asset | (20,710) | (471,025) |
Lease liability | (50,007) | (52,138) |
Rate deferral adjustment | (49,309) | (47,445) |
Interest rate agreements | (106,820) | (20,156) |
Other | (45,063) | (47,086) |
Total deferred tax liabilities | (2,747,630) | (2,922,527) |
Net deferred tax liabilities | $ (1,999,505) | $ (1,705,809) |
Income Taxes - Narrative (Detai
Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Income Tax Contingency [Line Items] | |||
Deferred tax liabilities, other | $ 45,063,000 | $ 47,086,000 | |
Charitable contribution carryforwards | 0 | ||
Remeasured federal effects | 500,000 | ||
Unrecognized tax benefits, period increase | 52,700,000 | ||
Unrecognized tax benefits, deferred tax liabilities | 12,800,000 | ||
Interest and penalties | 1,300,000 | 1,400,000 | $ 700,000 |
Payment of interest and penalties accrued | 11,700,000 | 10,400,000 | $ 8,200,000 |
Regulatory liability | 1,358,907,000 | 1,424,195,000 | |
Deferred tax liability, regulated operations | 404,200,000 | ||
Regulatory excess deferred taxes | |||
Income Tax Contingency [Line Items] | |||
Regulatory liability | 545,021,000 | 705,084,000 | |
Regulatory excess deferred taxes | Other current liabilities | |||
Income Tax Contingency [Line Items] | |||
Regulatory liability | $ 159,800,000 | $ 155,900,000 | |
Regulatory excess deferred taxes to be returned tranche one | Minimum | |||
Income Tax Contingency [Line Items] | |||
Return period | 35 months | ||
Regulatory excess deferred taxes to be returned tranche one | Maximum | |||
Income Tax Contingency [Line Items] | |||
Return period | 60 months | ||
Regulatory excess deferred taxes to be returned tranche two | |||
Income Tax Contingency [Line Items] | |||
Deferred tax liability, regulated operations | $ 78,400,000 | ||
Regulatory excess deferred taxes to be returned tranche two | Minimum | |||
Income Tax Contingency [Line Items] | |||
Return period | 15 years | ||
Regulatory excess deferred taxes to be returned tranche two | Maximum | |||
Income Tax Contingency [Line Items] | |||
Return period | 69 years | ||
Regulatory excess deferred taxes to be returned tranche three | |||
Income Tax Contingency [Line Items] | |||
Deferred tax liability, regulated operations | $ 15,100,000 | ||
Winter Storm Uri | |||
Income Tax Contingency [Line Items] | |||
Deferred tax liabilities, other | 471,000,000 | ||
Deferred tax asset, decrease during period | 450,300,000 | ||
Domestic tax authority | |||
Income Tax Contingency [Line Items] | |||
Federal net operating loss carryforwards | 441,300,000 | ||
State and local jurisdiction | |||
Income Tax Contingency [Line Items] | |||
Federal net operating loss carryforwards | 43,800,000 | ||
Federal effects | 11,400,000 | ||
Federal alternative minimum tax credit carryforwards | $ 1,900,000 |
Income Taxes - Schedule of Unre
Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Reconciliation of Unrecognized Tax Benefits [Roll Forward] | |||
Unrecognized tax benefits - beginning balance | $ 32,792 | $ 30,921 | $ 27,716 |
Decrease resulting from prior period tax positions | (721) | (26) | |
Increase resulting from prior period tax positions | 671 | ||
Increase resulting from current period tax positions | 20,612 | 1,200 | 3,231 |
Unrecognized tax benefits - ending balance | 52,683 | 32,792 | 30,921 |
Less: deferred federal and state income tax benefits | (11,063) | (6,886) | (6,493) |
Total unrecognized tax benefits that, if recognized, would impact the effective income tax rate as of the end of the year | $ 41,620 | $ 25,906 | $ 24,428 |
Financial Instruments - Narrati
Financial Instruments - Narrative (Details) | 12 Months Ended | ||
Sep. 30, 2022 USD ($) $ / Mcf MMcf | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | |
Derivative [Line Items] | |||
Contract netting | $ 0 | $ 0 | |
Cash collateral | 0 | 0 | |
Net loss on settled treasury lock agreements reclassified from AOCI into interest expense | 3,800,000 | $ 5,900,000 | $ 5,500,000 |
AOCI impact from settlement of financial instruments | $ 94,100,000 | ||
Commodity contracts | |||
Derivative [Line Items] | |||
Purchase commitment volume | MMcf | 14,335 | ||
Not Designated As Hedges: | Gas Purchases | Commodity contracts | |||
Derivative [Line Items] | |||
Hedging percent | 42% | ||
Purchase commitment volume | MMcf | 23,900 | ||
Not Designated As Hedges: | Gas Purchases | Commodity contracts | Minimum | |||
Derivative [Line Items] | |||
Hedging percent | 25% | ||
Not Designated As Hedges: | Gas Purchases | Commodity contracts | Maximum | |||
Derivative [Line Items] | |||
Hedging percent | 50% | ||
Not Designated As Hedges: | Gas Purchases | Commodity contracts | Weighted Average | |||
Derivative [Line Items] | |||
Derivative flow rate (USD per Mcf) | $ / Mcf | 3.67 |
Financial Instruments - Schedul
Financial Instruments - Schedule of Interest Rate Risk Management Activities (Details) - Cash Flow Hedging - Designated As Hedges: $ in Thousands | Sep. 30, 2022 USD ($) |
Forward Interest Rate Swap | |
Derivative [Line Items] | |
Derivative notional amount | $ 1,350,000 |
Forward Interest Rate Swap, Planned Issued Fiscal 2024 | |
Derivative [Line Items] | |
Derivative notional amount | 450,000 |
Forward Interest Rate Swap, Planned Issued Fiscal 2025 | |
Derivative [Line Items] | |
Derivative notional amount | 600,000 |
Forward Interest Rate Swap, Planned Issued Fiscal 2026 | |
Derivative [Line Items] | |
Derivative notional amount | $ 300,000 |
Financial Instruments - Sched_2
Financial Instruments - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Assets | ||
Net Financial Instruments | $ 381,991 | $ 230,686 |
Liabilities | ||
Net Financial Instruments | (4,129) | (5,269) |
Designated As Hedges: | ||
Assets | ||
Gross / Net Financial Instruments | 355,075 | 169,469 |
Liabilities | ||
Gross / Net Financial Instruments | 0 | 0 |
Designated As Hedges: | Deferred charges and other assets | Interest rate contracts | ||
Assets | ||
Gross / Net Financial Instruments | 355,075 | 169,469 |
Designated As Hedges: | Deferred credits and other liabilities | Interest rate contracts | ||
Liabilities | ||
Gross / Net Financial Instruments | 0 | 0 |
Not Designated As Hedges: | ||
Assets | ||
Gross / Net Financial Instruments | 26,916 | 61,217 |
Liabilities | ||
Gross / Net Financial Instruments | (4,129) | (5,269) |
Not Designated As Hedges: | Other current assets | Commodity contracts | ||
Assets | ||
Gross / Net Financial Instruments | 26,207 | 55,073 |
Not Designated As Hedges: | Other current liabilities | Commodity contracts | ||
Liabilities | ||
Gross / Net Financial Instruments | (3,000) | (5,269) |
Not Designated As Hedges: | Deferred charges and other assets | Commodity contracts | ||
Assets | ||
Gross / Net Financial Instruments | 709 | 6,144 |
Not Designated As Hedges: | Deferred credits and other liabilities | Commodity contracts | ||
Liabilities | ||
Gross / Net Financial Instruments | $ (1,129) | $ 0 |
Financial Instruments - Sched_3
Financial Instruments - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended | ||
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | |
Increase in fair value: | |||
Interest rate agreements | $ 296,875 | $ 123,017 | |
Recognition of losses in earnings due to settlements: | |||
Interest rate agreements | 2,976 | 4,566 | |
Total other comprehensive income from hedging, net of tax | $ 299,851 | $ 127,583 | $ 56,888 |
Financial Instruments - Interes
Financial Instruments - Interest Rate Agreements (Details) - Interest rate contracts $ in Thousands | 12 Months Ended |
Sep. 30, 2022 USD ($) | |
Expected Earnings [Line Items] | |
2023 | $ 2,120 |
2024 | 2,120 |
2025 | 2,120 |
2026 | 2,120 |
2027 | 2,120 |
Thereafter | 83,547 |
Total | $ 94,147 |
Fair Value Measurements - Sched
Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Sep. 30, 2021 |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Net Financial Instruments | $ 381,991 | $ 230,686 |
Total debt and equity securities | 96,012 | 108,071 |
Total assets | 478,003 | 338,757 |
Net Financial Instruments | 4,129 | 5,269 |
Registered investment companies | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 26,367 | 35,175 |
Bond mutual funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 32,367 | 34,298 |
Bonds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Debt securities | 33,433 | 35,655 |
Money market funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 3,845 | 2,943 |
Quoted Prices in Active Markets (Level 1) | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Financial instruments | 0 | 0 |
Total debt and equity securities | 58,734 | 69,473 |
Total assets | 58,734 | 69,473 |
Financial instruments | 0 | 0 |
Quoted Prices in Active Markets (Level 1) | Registered investment companies | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 26,367 | 35,175 |
Quoted Prices in Active Markets (Level 1) | Bond mutual funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 32,367 | 34,298 |
Quoted Prices in Active Markets (Level 1) | Bonds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Debt securities | 0 | 0 |
Quoted Prices in Active Markets (Level 1) | Money market funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 0 | 0 |
Significant Other Observable Inputs (Level 2) | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Financial instruments | 381,991 | 230,686 |
Total debt and equity securities | 37,278 | 38,598 |
Total assets | 419,269 | 269,284 |
Financial instruments | 4,129 | 5,269 |
Significant Other Observable Inputs (Level 2) | Registered investment companies | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 0 | 0 |
Significant Other Observable Inputs (Level 2) | Bond mutual funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 0 | 0 |
Significant Other Observable Inputs (Level 2) | Bonds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Debt securities | 33,433 | 35,655 |
Significant Other Observable Inputs (Level 2) | Money market funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 3,845 | 2,943 |
Significant Other Unobservable Inputs (Level 3) | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Financial instruments | 0 | 0 |
Total debt and equity securities | 0 | 0 |
Total assets | 0 | 0 |
Financial instruments | 0 | 0 |
Significant Other Unobservable Inputs (Level 3) | Registered investment companies | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 0 | 0 |
Significant Other Unobservable Inputs (Level 3) | Bond mutual funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | 0 | 0 |
Significant Other Unobservable Inputs (Level 3) | Bonds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Debt securities | 0 | 0 |
Significant Other Unobservable Inputs (Level 3) | Money market funds | ||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
Equity securities | $ 0 | $ 0 |
Fair Value Measurements - Narra
Fair Value Measurements - Narrative (Details) - USD ($) | Sep. 30, 2022 | Sep. 30, 2021 |
Fair Value Disclosures [Abstract] | ||
Allowance for credit loss | $ 0 | |
Amortized cost | $ 34,100,000 | $ 35,600,000 |
Fair Value Measurements - Sch_2
Fair Value Measurements - Schedule of Debt Instruments (Details) $ in Thousands | Sep. 30, 2022 USD ($) |
Fair Value Disclosures [Abstract] | |
Carrying Amount | $ 7,960,000 |
Fair Value | $ 6,918,843 |