ONE Gas (NYSE: OGS) plans investor meetings at UBS, Morgan Stanley and Jefferies conferences

Rhea-AI Filing Summary

ONE Gas, Inc. announced that it will participate in several upcoming investor conferences to meet with members of the investment community. The company will attend the UBS Midwest Utilities Conference in Chicago on February 25, 2026, followed by the Morgan Stanley Energy and Power Conference and the Jefferies Power, Energy, Clean Energy and Utilities Conference in New York City on March 2 and March 3, 2026.

Senior executives, including the senior vice president and chief operating officer and the senior vice president and chief financial officer, will attend all three events and hold investor meetings. Presentation materials for these conferences will be available on the ONE Gas website under the investors events and presentations section.

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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 24, 2026
(Date of earliest event reported)			February 24, 2026

ONE Gas, Inc.

(Exact name of registrant as specified in its charter)

Oklahoma

001-36108

46-3561936

(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 class

Trading Symbol

Name of each exchange on which registered

Common Stock, par value $0.01 per share

OGS

New York Stock Exchange

NYSE Texas

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. ☐

Item 7.01						Regulation FD Disclosure
						On February 24, 2026, we announced our participation in several upcoming investor conferences. We will be participating in the UBS Midwest Utilities Conference on Wednesday, February 25, 2026, in Chicago, Illinois, followed by the Morgan Stanley Energy and Power Conference on Monday, March 2, 2026, and the Jefferies Power, Utilities and Clean Energy Conference on Tuesday, March 3, 2026, both in New York City, New York. The news release is furnished as Exhibit 99.1 and incorporated by reference herein. Curtis Dinan, senior vice president and chief operating officer, and Christopher Sighinolfi, senior vice president and chief financial officer, will be in attendance at all three conferences. They will conduct a series of meetings with members of the investment community at each event. The materials utilized at the conferences will be accessible on the ONE Gas website, www.onegas.com/investors/events-and-presentations. The information disclosed in Item 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 9.01						Financial Statements and Exhibits
			(d)			Exhibits
Exhibit Number						Description
99.1						News release issued by ONE Gas, Inc. dated February 24, 2026.
104						Cover 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 24, 2026			By:			/s/ Christopher P. Sighinolfi
									Christopher P. Sighinolfi Senior Vice President and Chief Financial Officer

3

Exhibit 99.1

February 24, 2026						Analyst Contact: Erin Dailey 918-947-7411
						Media Contact: Leah Harper 918-947-7123

ONE Gas to Participate in UBS, Morgan Stanley and Jefferies Conferences

TULSA, Okla. – Feb. 24, 2026 – ONE Gas, Inc. (NYSE: OGS) today announced that it will participate in several upcoming investor conferences. The company will attend the UBS Midwest Utilities Conference on Wednesday, February 25, 2026, in Chicago, Illinois, followed by the Morgan Stanley Energy and Power Conference on Monday, March 2, 2026, and the Jefferies Power, Energy, Clean Energy and Utilities Conference on Tuesday, March 3, 2026, both in New York City, New York.

Curtis Dinan, senior vice president and chief operating officer, and Christopher Sighinolfi, senior vice president and chief financial officer, will be in attendance at all three conferences. They will conduct a series of meetings with members of the investment community at each event.

The materials utilized at the conferences will be accessible on the ONE Gas website, www.onegas.com/investors/events-and-presentations.

ONE Gas, Inc. (NYSE: OGS) is a 100-percent regulated natural gas utility, and trades on the New York Stock Exchange and the NYSE Texas 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.

###

FAQ

What did ONE Gas (OGS) announce in this 8-K filing?

ONE Gas announced participation in several upcoming investor conferences. Executives will meet with investors at events hosted by UBS, Morgan Stanley, and Jefferies, with presentation materials accessible on the company’s investor relations website for broader stakeholder review.

Which investor conferences will ONE Gas (OGS) attend in early 2026?

ONE Gas will attend the UBS Midwest Utilities Conference in Chicago on February 25, 2026, then the Morgan Stanley Energy and Power Conference and the Jefferies Power, Energy, Clean Energy and Utilities Conference in New York on March 2 and March 3, 2026.

Which ONE Gas executives will attend the 2026 investor conferences?

Senior vice president and chief operating officer Curtis Dinan and senior vice president and chief financial officer Christopher Sighinolfi will attend all three conferences. They will hold a series of meetings with members of the investment community at each event to discuss the business.

Where can investors find ONE Gas conference materials?

Conference materials will be available on the ONE Gas website. Investors can access them under the investors section at www.onegas.com/investors/events-and-presentations, which hosts presentations and related documents used at these investor conferences.

Is the ONE Gas conference information considered filed with the SEC?

The conference information and related news release are furnished, not filed, under Regulation FD. As furnished information, they are not subject to Section 18 liabilities and are only incorporated into other filings if specifically referenced.

What business does ONE Gas (OGS) operate according to this disclosure?

ONE Gas is a 100-percent regulated natural gas utility serving more than 2.3 million customers in Kansas, Oklahoma, and Texas. Its divisions are Kansas Gas Service, Oklahoma Natural Gas, and Texas Gas Service, making it one of the largest U.S. natural gas utilities.

Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EX-99.1 7.7 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 2.0 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 14.1 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 24.7 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 14.7 KB