15 EAST FIFTH STREET, TULSA, OK
To Participate in American Gas Association Financial Forum
Announces First Quarter 2026 Financial Results; Affirms 2026 Financial Guidance
First Quarter 2026 Conference Call and Webcast Scheduled
Annual Report to Security Holders
To Participate in UBS, Morgan Stanley and Jefferies Conferences
ONE Gas, Inc. Enters Equity Distribution Agreement with Multiple Managers
Sets Record Date for 2026 Annual Meeting of Shareholders
Earnings Release
Q1
FY 2024
Q3
Q2
FY 2023
Registration Statement for Securities to be Offered to Employees
Prospectus filed pursuant to Rule 424(b)(5)
S-3ASR
Certificate
Registration of Securities
Additional Proxy Materials
Definitive Proxy Statement
Amended Schedule 13G - Ownership Report
Schedule 13G - Ownership Report
Statement of Changes in Beneficial Ownership
Notice of Proposed Sale of Securities
Free Writing Prospectus
Prospectus Filed Pursuant to Rule 424(b)(1)
Correspondence