OGS

ONE Gas, Inc. Form 8-K Summary

Business Context and Reporting Period

Company: ONE Gas, Inc.
Filing Date: February 24, 2026
Reporting Period: Current report for events occurring on February 24, 2026.
Business Context: The registrant is a natural gas utility company headquartered in Tulsa, Oklahoma, with common stock traded on the NYSE under the symbol OGS.

Financial Metrics

This filing is a Regulation FD disclosure regarding investor conference participation. The document does not provide specific values for revenue, profit, cash flow, margins, debt, or liquidity. No financial statements are included in this report.

Material Changes

There are no material changes to financial performance or operations reported in this filing. The sole material event is the announcement of management's scheduled participation in upcoming investor conferences.

Guidance, Outlook, and Management Commentary

Upcoming Events: Management will present at three investor conferences in late February and early March 2026:

• UBS Midwest Utilities Conference: February 25, 2026, in Chicago, Illinois.
• Morgan Stanley Energy and Power Conference: March 2, 2026, in New York City, New York.
• Jefferies Power, Utilities and Clean Energy Conference: March 3, 2026, in New York City, New York.

Attendees: Curtis Dinan (Senior Vice President and Chief Operating Officer) and Christopher Sighinolfi (Senior Vice President and Chief Financial Officer) will attend all three events to meet with the investment community.
Materials: Presentation materials will be available on the company's investor relations website.

Key Facts for Investor Verification

• Verify the content of the news release (Exhibit 99.1) for any forward-looking statements made during the conference announcements.
• Monitor the company website for presentation decks released after the February 25 and March 2-3 conferences.
• Note that this 8-K filing itself contains no new financial data or operational updates beyond the conference schedule.