OGS · ONE Gas, Inc.

Summary

ONE Gas, Inc. announced its results of operations for the fourth quarter and year ended December 31, 2025, via a news release issued on February 18, 2026. The announcement is furnished under Items 2.02 and 7.01 with Exhibit 99.1.

Key takeaways

• Announcement of Q4 and full year 2025 results on February 18, 2026
• News release issued as Exhibit 99.1
• Results cover period ended December 31, 2025