| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MCCOLLUM MARK A | Director | 100 W. FIFTH STREET, TULSA | /s/ Sarah M. Rechter Attorney-in-Fact for Mark A. McCollum | 27 Jan 2026 | 0001215888 |
No securities are beneficially owned.
Director - Exhibit 24 - Power of Attorney