The conference call is scheduled for Wednesday, August 5, 2026, at 11 a.m. Eastern Daylight Time. Participants may join the live discussion by dialing 800-715-9871 and entering the pass code 3280987. Alternatively, the event will be broadcast through the investor relations section of the company’s website at www.onegas.com.

For those unable to attend the live session, a digital replay will remain accessible on the ONE Gas website for 30 days following the event. A telephone-based recording will also be available for seven days by calling 1-800-770-2030 with the same pass code. ONE Gas operates as a fully regulated utility, serving more than 2.3 million customers across Kansas, Oklahoma, and Texas.