ONE Gas SEC Filings https://www.onegas.com/generated by Q4Thu, 25 Jun 2026 16:18:07 -0400Copyright Q4 Inc. All rights reserved.ONE Gas - 11-K - Annual Report of Employee Stock Plans19563182https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19563182Thu, 25 Jun 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19528222https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19528222Wed, 10 Jun 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19514770https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19514770Thu, 04 Jun 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19514774https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19514774Thu, 04 Jun 2026 00:00:00 -0400ONE Gas - 8-K - Current report filing19483502https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19483502Wed, 27 May 2026 00:00:00 -0400ONE Gas - 8-K - Current report filing19479322https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479322Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479093https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479093Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479100https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479100Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479099https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479099Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479101https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479101Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479102https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479102Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479106https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479106Tue, 26 May 2026 00:00:00 -0400ONE Gas - 4 - Statement of Changes in Beneficial Ownership19479105https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19479105Tue, 26 May 2026 00:00:00 -0400ONE Gas - S-8 - Securities Registration: Employee Benefit Plan19472192https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19472192Fri, 22 May 2026 00:00:00 -0400ONE Gas - SC 13G/A - Amended Statement of Ownership19448385https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19448385Fri, 15 May 2026 00:00:00 -0400ONE Gas - 8-K - Current report filing19436406https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19436406Tue, 12 May 2026 00:00:00 -0400ONE Gas - 10-Q - Quarterly Report19411903https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19411903Tue, 05 May 2026 00:00:00 -0400ONE Gas - 8-K - Current report filing19407180https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19407180Mon, 04 May 2026 00:00:00 -0400ONE Gas - DEFA14A - Additional Proxy Soliciting Materials (definitive)19402769https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19402769Fri, 01 May 2026 00:00:00 -0400ONE Gas - SC 13G/A - Amended Statement of Ownership19399111https://www.onegas.com/investors/financials-and-filings/sec-filings/sec-filings-details/default.aspx?FilingId=19399111Fri, 01 May 2026 00:00:00 -0400