| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Taylor Stephen Charles | Director | 404 VETERANS AIRPARK LANE, SUITE 300, MIDLAND | Stephen C. Taylor | 2025-11-20 | 0001316004 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NGS | Common Stock | Sale | -$303K | -10K | -2.98% | $30.31 | 325K | Nov 19, 2025 | Direct | |
| transaction | NGS | Common Stock | Sale | -$314K | -10K | -3.07% | $31.37 | 315K | Nov 20, 2025 | Direct | |
| holding | NGS | Common Stock | 114K | Nov 19, 2025 | Rabbi Trust |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | NGS | Restricted Stock Units | 4.46K | Nov 19, 2025 | Common Stock | 4.46K | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting. |