| 14 | | Exercise an Option | $0 | 3/21/07 |
| 13 | | Supplemental Agreement for work within scope | $155.0k | 9/29/06 |
| 21 | | Supplemental Agreement for work within scope | $253.1k | 11/8/04 |
| 10 | | Supplemental Agreement for work within scope | $131.9k | 11/8/04 |
| 9 | | Supplemental Agreement for work within scope | $136.1k | 10/1/04 |