| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Siegel Yves C | Director | 15 E. 5TH STREET, TULSA | /s/ Brian K. Shore, Attorney-in-Fact for Yves C. Siegel | 27 May 2025 | 0001572715 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OGS | Phantom Stock | Award | $140K | +1.91K | +109.8% | $73.49 | 3.64K | 22 May 2025 | Common stock, par value $0.01 | 1.91K | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Shares of phantom stock are convertible into ONE Gas' common stock on a 1-for-1 ratio. |
| F2 | Annual stock retainer elected to be deferred to phantom stock under ONE Gas' Deferred Compensation Plan for Non-Employee Directors. |
| F3 | Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan. |