| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| RODRIGUEZ EDUARDO A | Director | 15 E. 5TH STREET, TULSA | /s/ Brian K. Shore, Attorney-in-Fact for Eduardo A. Rodriguez | 10 Mar 2026 | 0001286450 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OGS | Common stock, par value $0.01 | Sale | $73,389 | -850 | -6% | $86.34 | 13,362 | 06 Mar 2026 | Direct |