| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| LINDSAY JOHN W | Chief Executive Officer, Director | 222 N. DETROIT AVE., TULSA | /s/ William H. Gault by Power of Attorney for John Lindsay | 08 Dec 2025 | 0001219880 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HP | Common Stock | Tax liability | $345,532 | -11,564 | -1.7% | $29.88 | 679,650 | 05 Dec 2025 | Direct | |
| holding | HP | Common Stock | 9,021 | 05 Dec 2025 | 401(k) |