| 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 W. Lindsay | 12 Dec 2025 | 0001219880 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HP | Common Stock | Tax liability | $378,468 | -12,268 | -1.6% | $30.85 | 736,508 | 11 Dec 2025 | Direct | |
| holding | HP | Common Stock | 9,021 | 11 Dec 2025 | 401(k) |