| Date | Open | Close | Volume |
| 2010-03-02 | 1.04 | 1.06 | 572600 |
| 2010-03-01 | 1.04 | 1.05 | 636900 |
| 2010-02-26 | 0.97 | 1.03 | 413600 |
| 2010-02-25 | 1.05 | 0.99 | 450300 |
| 2010-02-24 | 1.03 | 1.01 | 440300 |
| 2010-02-23 | 0.96 | 1.02 | 1579700 |
| 2010-02-22 | 0.95 | 0.96 | 295100 |
| 2010-02-19 | 0.97 | 0.95 | 229300 |
| 2010-02-18 | 0.96 | 0.97 | 613800 |
| 2010-02-17 | 0.95 | 0.99 | 997500 |
| 2010-02-16 | 0.91 | 0.95 | 636000 |
| 2010-02-12 | 0.90 | 0.89 | 582500 |
| 2010-02-11 | 0.90 | 0.88 | 333000 |
| 2010-02-10 | 0.90 | 0.89 | 577200 |
| 2010-02-09 | 0.90 | 0.89 | 439600 |
| 2010-02-08 | 1.01 | 0.89 | 1194400 |
| 2010-02-05 | 0.96 | 0.94 | 474400 |
| 2010-02-04 | 0.96 | 0.94 | 527500 |
| 2010-02-03 | 0.99 | 0.95 | 414300 |
| 2010-02-02 | 0.95 | 0.98 | 541800 |
| 2010-02-01 | 0.96 | 0.96 | 1228100 |
| 2010-01-29 | 0.96 | 0.93 | 809200 |
| 2010-01-28 | 1.00 | 0.96 | 732600 |
| 2010-01-27 | 1.05 | 1.00 | 1533700 |
| 2010-01-26 | 1.15 | 1.05 | 3859400 |
| 2010-01-25 | 1.06 | 0.97 | 2271800 |
| 2010-01-22 | 1.10 | 1.02 | 2108800 |
| 2010-01-21 | 1.17 | 1.10 | 7215600 |
| 2010-01-20 | 1.04 | 1.05 | 3772900 |
| 2010-01-19 | 1.07 | 1.01 | 3149200 |
| 2010-01-15 | 1.07 | 1.02 | 3337000 |
| 2010-01-14 | 1.12 | 1.07 | 15641600 |
Other Companies: 09-07-2008-1 | CNOOC Ltd. | 05-11-2009-1
Mitcham Industries Inc. | 03-15-2008-1 | Ensco International Inc.