| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| OII | Sr.V.P., Gen. Counsel & Sec. | Feb 22, 2011 | Option Exercise | $81.93 | 1,500 | 122,895 | 36,250 | Feb 24, 2011, 10:18 AM |
| Symbol | Relationship | Date | Transaction | Value($) |
| OII | Sr.V.P., Gen. Counsel & Sec. | Feb 22, 2011 | Option Exercise | 122,895 |