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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

(Date of report)February 19, 2025
(Date of earliest event reported)February 19, 2025

ONE Gas, Inc.
(Exact name of registrant as specified in its charter)
Oklahoma001-3610846-3561936
(State or other jurisdiction(Commission(IRS Employer
of incorporation)File Number)Identification No.)

15 East Fifth Street; Tulsa, OK
(Address of principal executive offices)

74103
(Zip code)

(918) 947-7000
(Registrant’s telephone number, including area code)

Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of exchange on which registered
Common Stock, par value $0.01 per shareOGSNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐


The information disclosed in Items 2.02 and 7.01, including Exhibit 99.1 hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the Exchange Act), or otherwise subject to the liabilities under that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing.
Item 2.02Results of Operations and Financial Condition
On February 19, 2025, we announced our results of operations for the fourth quarter and year ended December 31, 2024. The news release is furnished as Exhibit 99.1 and incorporated by reference herein.
Item 7.01Regulation FD Disclosure
On February 19, 2025, we announced our results of operations for the fourth quarter and year ended December 31, 2024. The news release is furnished as Exhibit 99.1 and is incorporated by reference herein.
Item 9.01Financial Statements and Exhibits
(d)Exhibits
Exhibit
Number		Description
99.1
104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

SIGNATURE

Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

ONE Gas, Inc.
Date:February 19, 2025By:/s/ Christopher P. Sighinolfi
Christopher P. Sighinolfi
Senior Vice President and
Chief Financial Officer

3

Exhibit 99.1

logoletterheadb27a.jpg

February 19, 2025Analyst Contact:Erin Dailey
918-947-7411
Media Contact:Leah Harper
918-947-7123
ONE Gas Announces Fourth Quarter and Full Year 2024 Financial Results

Analyst call and webcast scheduled tomorrow, Feb. 20 at 11 a.m. EST

TULSA, Okla. - Feb. 19, 2025 - ONE Gas, Inc. (NYSE: OGS) today announced its fourth quarter and full year 2024 financial results, which include diluted earnings per share of $1.34 and $3.91, respectively.

“Our strong financial performance is a testament to our prudent fiscal planning, execution of our regulatory strategy and disciplined management of operations and maintenance expenses,” said Robert S. McAnnally, president and chief executive officer. “As we embark on a new year, we are prepared to serve a growing customer base while continuing to enhance the safety and reliability of our system.”

2024 FINANCIAL RESULTS & HIGHLIGHTS
    
•Fourth quarter 2024 net income was $77.0 million, or $1.34 per diluted share, compared with $70.7 million, or $1.27 per diluted share, in the fourth quarter 2023;
•Full year 2024 net income was $222.9 million, or $3.91 per diluted share, compared with $231.2 million, or $4.14 per diluted share, last year;
•In December, the Company settled 3,160,465 million shares of our common stock under our at-the-market equity program and forward contracts for net proceeds of $245.7 million;
•Full year 2024 capital expenditures and asset removal costs were $762.1 million compared with $728.7 million in 2023; and
•On Jan. 21, 2025, ONE Gas increased the dividend for the first quarter 2025 by 1 cent to $0.67 per share ($2.68 annualized), payable March 7, 2025, to shareholders of record at the close of business Feb. 21, 2025.



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FOURTH QUARTER 2024 FINANCIAL PERFORMANCE

ONE Gas reported operating income of $124.3 million in the fourth quarter, compared with $107.1 million in the fourth quarter 2023, which primarily reflects:

•an increase of $24.6 million from new rates;
•an increase of $1.2 million in residential sales due primarily to net customer growth in Oklahoma and Texas; and
•an increase of $7.9 million in gas sales-related revenues.

The increase was partially offset by:

•an increase of $2.9 million in depreciation and amortization expense from additional capital investment;
•an increase of $6.5 million in employee-related costs, due primarily to planned investments in the Company’s workforce and ongoing in-sourcing efforts, which have enhanced management of operations and maintenance expense; and
•an increase of $4.8 million in ad-valorem taxes, primarily due to regulatory outcomes which took effect during the quarter.

Weather was 24.3 percent warmer than normal for the three months ended Dec. 31, 2024. The impact on operating income was mitigated by weather normalization mechanisms.

Excluding interest related to KGSS-I securitized bonds, net interest expense increased $10.4 million for the three months ending Dec. 31, 2024. Interest expense was primarily impacted by the conversion of the two debt maturities in the first quarter 2024 to commercial paper with a higher weighted average interest rate, the issuance of $300 million of 5.10 percent senior notes in December 2023 and the reopening of the 5.10 percent senior notes in August 2024 to issue an additional $250 million, all of which are supportive of our capital plan.

Income tax expense includes a credit for amortization of the regulatory liability associated with excess deferred income taxes (EDIT) of $12.3 million and $6.9 million for the three months ended Dec. 31, 2024, and 2023, respectively.

Capital expenditures and asset removal costs were $190.4 million for the fourth quarter 2024 compared with $189.6 million in the same period last year, primarily representing expenditures for system integrity and extension of service to new areas.

FULL YEAR 2024 FINANCIAL PERFORMANCE

Operating income for the twelve-month 2024 period was $399.0 million, compared with $377.6 million in 2023, which primarily reflects:

•an increase of $67.9 million from new rates; and
•an increase of $6.3 million in residential sales due primarily to net customer growth in Oklahoma and Texas.
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These increases were offset partially by:

•an increase of $22.9 million of employee-related costs due primarily to planned investments in the Company’s workforce and ongoing in-sourcing efforts;
•an increase of $16.9 million in depreciation and amortization expense from additional capital investment; and
•an increase of $6.9 million due to ad-valorem taxes.

Excluding interest related to KGSS-I securitized bonds, net interest expense increased $33.6 million for the twelve months ended Dec. 31, 2024. Interest expense was primarily impacted by the conversion of the two debt maturities in the first quarter 2024 to commercial paper with a higher weighted average interest rate, the issuance of $300 million of 5.10 percent senior notes in December 2023 and the reopening of the 5.10 percent senior notes in August 2024 to issue an additional $250 million.

Income tax expense includes a credit for amortization of the regulatory liability associated with EDIT of $25.7 million and $22.4 million for the twelve months ended Dec. 31, 2024, and 2023, respectively.

Capital expenditures and asset removal costs were $762.1 million for the twelve-month 2024 period compared with $728.7 million in the same period last year. The increase was due primarily to expenditures for system integrity and extension of service to new areas.

In December, the Company settled 3,160,465 million shares of our common stock under our at-the-market equity program and forward contracts for net proceeds of $245.7 million. In December, we also amended the two forward sale agreements we entered into in September 2023 to extend the maturity date of 223,000 and 180,000 shares of our common stock to December 31, 2025 from December 31, 2024.

REGULATORY ACTIVITIES UPDATE

In February 2025, Texas Gas Service made Gas Reliability Infrastructure Program filings for
all customers in the Central-Gulf service area, requesting a $15.4 million increase to be effective in
June 2025.

In February 2025, Texas Gas Service made Gas Reliability Infrastructure Program filings for
all customers in the West-North service area, requesting a $8.2 million increase to be effective in
June 2025.

2025 FINANCIAL GUIDANCE

On Dec. 4, 2024, ONE Gas announced that its 2025 net income is expected to be in the range of $254 million to $261 million, with earnings per diluted share of $4.20 to $4.32.

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February 19, 2025
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Capital investments, including asset removal costs, are expected to be approximately $750 million in 2025, primarily targeted for system integrity and replacement projects. Capital investments for extensions to new customers are expected to be approximately $180 million.

EARNINGS CONFERENCE CALL AND WEBCAST

The ONE Gas executive management team will host a conference call on Thursday, Feb. 20, 2025, at 11 a.m. Eastern Standard Time (10 a.m. Central Standard Time). The call also will be carried live on the ONE Gas website.

To participate in the telephone conference call, dial 833-470-1428, passcode 455855, or log on to www.onegas.com/investors and select Events and Presentations.

If you are unable to participate in the conference call or the webcast, a replay will be available on the ONE Gas website, www.onegas.com, for 30 days. A recording will be available by phone for seven days. The playback call may be accessed at 866-813-9403, passcode 180102.
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ONE Gas, Inc. (NYSE: OGS) is a 100% regulated natural gas utility, and trades on the New York Stock Exchange under the symbol “OGS.” ONE Gas is included in the S&P MidCap 400 Index and is one of the largest natural gas utilities in the United States.

Headquartered in Tulsa, Oklahoma, ONE Gas provides a reliable and affordable energy choice to more than 2.3 million customers in Kansas, Oklahoma and Texas. Its divisions include Kansas Gas Service, the largest natural gas distributor in Kansas; Oklahoma Natural Gas, the largest in Oklahoma; and Texas Gas Service, the third largest in Texas, in terms of customers.

For more information and the latest news about ONE Gas, visit onegas.com and follow its social channels: @ONEGas, Facebook, LinkedIn and YouTube.

Some of the statements contained and incorporated in this news release are forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. The forward-looking statements relate to our anticipated financial performance, liquidity, management’s plans and objectives for our future operations, our business prospects, the outcome of regulatory and legal proceedings, market conditions and other matters. We make these forward-looking statements in reliance on the safe harbor protections provided under the Private Securities Litigation Reform Act of 1995. The following discussion is intended to identify important factors that could cause future outcomes to differ materially from those set forth in the forward-looking statements.

Forward-looking statements include the items identified in the preceding paragraph, the information concerning possible or assumed future results of our operations and other statements contained or incorporated in this news release identified by words such as "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," "should," "goal," "forecast," "guidance," "could," "may," "continue," "might," "potential," "scheduled," "likely," and other words and terms of similar meaning.

One should not place undue reliance on forward-looking statements, which are applicable only as of the date of this news release. Known and unknown risks, uncertainties and other factors may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by forward-looking statements. Those factors may affect our operations, costs, liquidity, markets, products, services and prices. In addition to any assumptions and other factors referred to specifically in connection with the forward-looking statements, factors that could cause our actual results to differ materially from those contemplated in any forward-looking statement include, among others, the following:

•our ability to recover costs, income taxes and amounts equivalent to the cost of property, plant and equipment, regulatory assets and our allowed rate of return in our regulated rates or other recovery mechanisms;
•cyber-attacks, which, according to experts, continue to increase in volume and sophistication, or breaches of technology systems that could disrupt our operations or result in the loss or exposure of confidential or sensitive customer, employee, vendor, counterparty, or Company information; further, increased remote working
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arrangements have required enhancements and modifications to our information technology infrastructure (e.g. Internet, Virtual Private Network, remote collaboration systems, etc.), and any failures of the technologies, including third-party service providers, that facilitate working remotely could limit our ability to conduct ordinary operations or expose us to increased risk or effect of an attack;
•our ability to manage our operations and maintenance costs;
•changes in regulation of natural gas distribution services, particularly those in Oklahoma, Kansas and Texas;
•the economic climate and, particularly, its effect on the natural gas requirements of our residential and commercial customers;
•the length and severity of a pandemic or other health crisis which could significantly disrupt or prevent us from operating our business in the ordinary course for an extended period;
•competition from alternative forms of energy, including, but not limited to, electricity, solar power, wind power, geothermal energy and biofuels;
•adverse weather conditions and variations in weather, including seasonal effects on demand and/or supply, the occurrence of severe storms in the territories in which we operate, and climate change, and the related effects on supply, demand, and costs;
•indebtedness could make us more vulnerable to general adverse economic and industry conditions, limit our ability to borrow additional funds and/or place us at competitive disadvantage compared with competitors;
•our ability to secure reliable, competitively priced and flexible natural gas transportation and supply, including decisions by natural gas producers to reduce production or shut-in producing natural gas wells and expiration of existing supply and transportation and storage arrangements that are not replaced with contracts with similar terms and pricing;
•our ability to complete necessary or desirable expansion or infrastructure development projects, which may delay or prevent us from serving our customers or expanding our business;
•operational and mechanical hazards or interruptions;
•adverse labor relations;
•the effectiveness of our strategies to reduce earnings lag, revenue protection strategies and risk mitigation strategies, which may be affected by risks beyond our control such as commodity price volatility, counterparty performance or creditworthiness and interest rate risk;
•the capital-intensive nature of our business, and the availability of and access to, in general, funds to meet our debt obligations prior to or when they become due and to fund our operations and capital expenditures, either through (i) cash on hand, (ii) operating cash flow, or (iii) access to the capital markets and other sources of liquidity;
•our ability to obtain capital on commercially reasonable terms, or on terms acceptable to us, or at all;
•limitations on our operating flexibility, earnings and cash flows due to restrictions in our financing arrangements;
•cross-default provisions in our borrowing arrangements, which may lead to our inability to satisfy all of our outstanding obligations in the event of a default on our part;
•changes in the financial markets during the periods covered by the forward-looking statements, particularly those affecting the availability of capital and our ability to refinance existing debt and fund investments and acquisitions to execute our business strategy;
•actions of rating agencies, including the ratings of debt, general corporate ratings and changes in the rating agencies’ ratings criteria;
•changes in inflation and interest rates;
•our ability to recover the costs of natural gas purchased for our customers and any related financing required to support our purchase of natural gas supply;
•impact of potential impairment charges;
•volatility and changes in markets for natural gas and our ability to secure additional and sufficient liquidity on reasonable commercial terms to cover costs associated with such volatility;
•possible loss of local distribution company franchises or other adverse effects caused by the actions of municipalities;
•payment and performance by counterparties and customers as contracted and when due, including our counterparties maintaining ordinary course terms of supply and payments;
•changes in existing or the addition of new environmental, safety, tax, cybersecurity and other laws or regulations to which we and our subsidiaries are subject, including those that may require significant expenditures, significant increases in operating costs or, in the case of noncompliance, substantial fines or penalties;
•the effectiveness of our risk-management policies and procedures, and employees violating our risk-management policies;
•the uncertainty of estimates, including accruals and costs of environmental remediation;
•advances in technology, including technologies that increase efficiency or that improve electricity’s competitive position relative to natural gas;
•population growth rates and changes in the demographic patterns of the markets we serve in Oklahoma, Kansas and Texas, and economic conditions in these areas;
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February 19, 2025
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•acts of nature and naturally occurring disasters;
•political unrest and the potential effects of threatened or actual terrorism and war;
•the sufficiency of insurance coverage to cover losses;
•the effects of our strategies to reduce tax payments;
•changes in accounting standards;
•changes in corporate governance standards;
•existence of material weaknesses in our internal controls;
•our ability to comply with all covenants in our indentures and the ONE Gas Credit Agreement, a violation of which, if not cured in a timely manner, could trigger a default of our obligations;
•our ability to attract and retain talented employees, management and directors, and shortage of skilled-labor;
•unexpected increases in the costs of providing health care benefits, along with pension and postemployment health care benefits, as well as declines in the discount rates on, declines in the market value of the debt and equity securities of, and increases in funding requirements for, our defined benefit plans; and
•our ability to successfully complete merger, acquisition or divestiture plans, regulatory or other limitations imposed as a result of a merger, acquisition or divestiture, and the success of the business following a merger, acquisition or divestiture.

These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in any of our forward-looking statements. Other factors could also have material adverse effects on our future results. These and other risks are described in greater detail in Part 1, Item 1A, Risk Factors, in our Annual Report. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these factors. Other than as required under securities laws, we undertake no obligation to update publicly any forward-looking statement whether as a result of new information, subsequent events or change in circumstances, expectations or otherwise.
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APPENDIX

ONE Gas, Inc.
CONSOLIDATED STATEMENTS OF INCOME
Three Months EndedTwelve Months Ended
 December 31,December 31,
2024202320242023
(Thousands of dollars, except per share amounts)
Total revenues$630,703 $605,917 $2,083,558 $2,371,990 
Cost of natural gas263,740 267,560 778,333 1,134,510 
Operating expenses
Operations and maintenance144,853 141,478 530,111 508,399 
Depreciation and amortization75,452 72,584 296,699 279,830 
General taxes22,348 17,160 79,371 71,661 
Total operating expenses242,653 231,222 906,181 859,890 
Operating income124,310 107,135 399,044 377,590 
Other income, net
105 4,666 7,427 9,476 
Interest expense, net(39,760)(29,778)(147,235)(115,339)
Income before income taxes84,655 82,023 259,236 271,727 
Income taxes(7,633)(11,290)(36,386)(40,495)
Net income
$77,022 $70,733 $222,850 $231,232 
Earnings per share
Basic$1.35 $1.27 $3.92 $4.16 
Diluted$1.34 $1.27 $3.91 $4.14 
Average shares (thousands)
Basic57,000 55,670 56,826 55,600 
Diluted57,415 55,752 57,033 55,860 
Dividends declared per share of stock$0.66 $0.65 $2.64 $2.60 

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February 19, 2025
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APPENDIX

ONE Gas, Inc.
CONSOLIDATED BALANCE SHEETS
 December 31,December 31,
20242023
Assets
(Thousands of dollars)
Property, plant and equipment  
Property, plant and equipment$9,124,134 $8,468,967 
Accumulated depreciation and amortization2,478,261 2,333,755 
Net property, plant and equipment6,645,873 6,135,212 
Current assets  
Cash and cash equivalents57,995 18,835 
Restricted cash and cash equivalents20,542 20,552 
Total cash, cash equivalents and restricted cash and cash equivalents78,537 39,387 
Accounts receivable, net408,448 347,864 
Materials and supplies91,662 77,649 
Income tax receivable53,624 3,947 
Natural gas in storage161,184 187,097 
Regulatory assets101,210 75,308 
Other current assets35,216 33,952 
Total current assets929,881 765,204 
Goodwill and other assets  
Regulatory assets278,006 287,906 
Securitized intangible asset, net265,951 293,619 
Goodwill157,953 157,953 
Pension and other postemployment benefits42,882 36,482 
Other assets105,025 94,618 
Total goodwill and other assets849,817 870,578 
Total assets$8,425,571 $7,770,994 



















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February 19, 2025
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APPENDIX

ONE Gas, Inc.
CONSOLIDATED BALANCE SHEETS
(Continued)
 December 31,December 31,
20242023
Equity and Liabilities
(Thousands of dollars)
Equity and long-term debt
Common stock, $0.01 par value:
authorized 250,000,000 shares; issued and outstanding 59,876,861 shares at December 31, 2024; issued and outstanding 56,545,924 shares at December 31, 2023
$599 $565 
Paid-in capital2,294,469 2,028,755 
Retained earnings809,606 737,739 
Accumulated other comprehensive loss(126)(1,182)
Total equity3,104,548 2,765,877 
Other long-term debt, excluding current maturities, net of issuance costs2,131,718 1,877,895 
Securitized utility tariff bonds, excluding current maturities, net of issuance costs253,568 282,506 
Total long-term debt, excluding current maturities, net of issuance costs2,385,286 2,160,401 
Total equity and long-term debt5,489,834 4,926,278 
Current liabilities  
Current maturities of other long-term debt14 772,984 
Current maturities of securitized utility tariff bonds28,956 27,430 
Notes payable914,600 88,500 
Accounts payable261,321 278,056 
Accrued taxes other than income75,608 68,793 
Regulatory liabilities22,525 66,901 
Customer deposits56,243 62,187 
Other current liabilities99,009 112,370 
Total current liabilities1,458,276 1,477,221 
Deferred credits and other liabilities  
Deferred income taxes891,738 752,068 
Regulatory liabilities467,563 500,478 
Other deferred credits118,160 114,949 
Total deferred credits and other liabilities1,477,461 1,367,495 
Commitments and contingencies
Total liabilities and equity$8,425,571 $7,770,994 
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APPENDIX
ONE Gas, Inc.
CONSOLIDATED STATEMENTS OF CASH FLOWS
Year Ended December 31,
December 31,
20242023
 
(Thousands of dollars)
Operating activities  
Net income$222,850 $231,232 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization296,699 279,830 
Deferred income taxes106,522 24,773 
Share-based compensation expense13,733 12,184 
Provision for doubtful accounts6,705 9,698 
Proceeds from government securitization of winter weather event costs— 197,366 
Changes in assets and liabilities:
Accounts receivable(67,289)196,272 
Materials and supplies(14,013)(6,776)
Income tax receivable(49,677)(3,947)
Natural gas in storage25,913 82,108 
Asset removal costs(58,952)(62,023)
Accounts payable(15,014)(90,046)
Accrued taxes other than income6,815 (9,559)
Customer deposits(5,944)4,333 
Regulatory assets and liabilities - current(90,829)7,249 
Regulatory assets and liabilities - noncurrent19,354 38,869 
Other assets and liabilities - current(17,091)30,017 
Other assets and liabilities - noncurrent(11,371)(2,048)
Cash provided by operating activities
368,411 939,532 
Investing activities  
Capital expenditures(703,165)(666,634)
Other investing expenditures(10,402)(8,508)
Other investing receipts6,072 5,499 
Cash used in investing activities
(707,495)(669,643)
Financing activities  
Borrowings (repayments) of notes payable, net
826,100 (463,500)
Issuance of other long-term debt, net of premiums253,467 — 
Issuance of other long-term debt, net of premiums and discounts— 299,583 
Long-term debt financing costs(2,193)(2,508)
Issuance of common stock252,379 85,259 
Repayment of other long-term debt(773,013)— 
Repayment of securitized utility tariff bonds(27,939)(20,716)
Dividends paid(149,456)(144,094)
Tax withholdings related to net share settlements of stock compensation(1,111)(2,653)
Cash provided by (used in) financing activities
378,234 (248,629)
Change in cash, cash equivalents, restricted cash and restricted cash equivalents39,150 21,260 
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of period39,387 18,127 
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period$78,537 $39,387 
Supplemental cash flow information:
Cash paid for interest, net of amounts capitalized
$148,987 $80,726 
Cash paid (received) for other state income taxes$366 $769 
Cash paid (received) for state income taxes
$(4,546)$1,571 
Cash paid (received) for federal income taxes
$(16,280)$18,504 
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February 19, 2025
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APPENDIX

ONE Gas, Inc.
KGSS-I SECURITIZATION

In November 2022, Kansas Gas Service Securitization I, L.L.C. (KGSS-I) issued $336 million of securitized utility tariff bonds. KGSS-I used the proceeds from the issuance to purchase the Securitized Utility Tariff Property from Kansas Gas Service, pay for debt issuance costs, and reimburse Kansas Gas Service for upfront securitization costs paid on behalf of KGSS-I.

Revenues for the three months ended Dec. 31, 2024, include $10.6 million associated with KGSS-I, which is offset by $6.7 million in operating and amortization expense and $3.9 million in net interest expense. Revenues decreased $2.3 million compared to the same period last year, which was offset by the net change of a $1.9 million decrease in operating and amortization expense and a $0.4 million decrease in net interest expense.

Revenues for the twelve months ended Dec. 31, 2024, include $44.4 million associated with KGSS-I, which is offset by $28.1 million in operating and amortization expense and $16.1 in net interest expense. Compared to the same twelve month period last year, revenues decreased $4.3 million, which was offset by the net change of a $2.5 million decrease in amortization and operating expense and a $1.7 million decrease in net interest expense.

The following table summarizes the impact of KGSS-I on the consolidated balance sheets, for the periods indicated:

December 31,December 31,
20242023
(Thousands of dollars)
Restricted cash and cash equivalents$20,542 $20,552 
Accounts receivable4,659 5,133 
Securitized intangible asset, net265,951 293,619 
Total assets$291,152 $319,304 
Current maturities of securitized utility tariff bonds28,956 27,430 
Accounts payable319 393 
Accrued interest6,568 7,207 
Securitized utility tariff bonds, excluding current maturities, net of discounts and issuance costs $4.8 million and $5.3 million, as of December 31, 2024 and December 31, 2023, respectively253,568 282,506 
Equity1,741 1,768 
Total liabilities and equity$291,152 $319,304 









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February 19, 2025
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The following table summarizes the impact of KGSS-I on the consolidated statements of income, for the periods indicated:

Three Months EndedYear Ended December 31,
December 31,December 31,
2024202320242023
(Thousands of dollars)
Operating revenues$10,649 $12,923 $44,390 $48,677 
Operating expense(111)(108)(443)(440)
Amortization expense(6,559)(8,461)(27,668)(30,219)
Interest income132 136 671 696 
Interest expense(4,075)(4,451)(16,806)(18,552)
Income before income taxes$36 $39 $144 $162 


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February 19, 2025
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APPENDIX
ONE Gas, Inc.
INFORMATION AT A GLANCE
Three Months EndedTwelve Months Ended
December 31,December 31,
(Unaudited)
2024202320242023
 (Millions of dollars)
Natural gas sales $573.4$543.4$1,864.1$2,154.0
Transportation revenues$37.4$35.9$138.7$133.6
Securitization customer charges$10.7$12.9$44.4$48.7
Other revenues$9.2$13.7$36.4$35.7
Total revenues$630.7$605.9$2,083.6$2,372.0
Cost of natural gas$263.7$267.6$778.3$1,134.5
Operating costs $167.3$158.6$609.6$580.1
Depreciation and amortization$75.5$72.6$296.7$279.8
Operating income $124.2$107.1$399.0$377.6
Net income$77.0$70.7$222.9$231.2
Capital expenditures and asset removal costs$190.4$189.6$762.1$728.7
Volumes (Bcf)
Natural gas sales
Residential33.738.2104.176.0
Commercial and industrial10.812.636.940.6
Other0.60.12.11.7
Total sales volumes delivered45.150.9143.2156.6
Transportation57.358.8221.0227.9
Total volumes delivered102.4109.7364.2384.5
Average number of customers (in thousands)
Residential2,1012,0892,1032,088
Commercial and industrial162161163162
Other3433
Transportation12121212
Total customers2,2772,2662,2812,265
Heating Degree Days
Actual degree days2,8643,3347,9918,800
Normal degree days3,7843,8129,7289,772
Percent colder (warmer) than normal weather(24)%(13)%(18)%(10)%
Statistics by State
Oklahoma
Average number of customers (in thousands)
924920924918
Actual degree days
9851,1722,7833,125
Normal degree days
1,3201,3183,3593,346
Percent colder (warmer) than normal weather
(25)%(11)%(17)%(7)%
Kansas
Average number of customers (in thousands)
648647651648
Actual degree days
1,4331,5493,8634,117
Normal degree days
1,7911,8214,6904,721
Percent colder (warmer) than normal weather
(20)%(15)%(18)%(13)%
Texas
Average number of customers (in thousands)
706699706699
Actual degree days
4466131,3451,558
Normal degree days
6736731,6791,705
Percent colder (warmer) than normal weather
(34)%(9)%(20)%(9)%
###
v3.25.0.1
DEI 8-K Notes
Feb. 19, 2025
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Feb. 19, 2025
Entity Registrant Name ONE Gas, Inc.
Entity Central Index Key 0001587732
Title of 12(b) Security Common Stock, par value $0.01 per share
Entity Incorporation, State or Country Code OK
Entity File Number 001-36108
Entity Tax Identification Number 46-3561936
Entity Address, Postal Zip Code 74103
City Area Code (918)
Local Phone Number 947-7000
Trading Symbol OGS
Security Exchange Name NYSE
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Amendment Flag false
Entity Address, Address Line One 15 East Fifth Street
Entity Address, City or Town Tulsa
Entity Address, State or Province OK
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