| FOB | 28/04/2011 |
| USD/thùng | Tăng/giảm |
| 112.86 | 0.1 |
| 139.91 | 4.82 |
| 137.71 | 3.9 |
| 134.81 | 3.3 |
| 141.27 | 1.88 |
| 140.09 | 1.8 |
| 120.57 | 2.01 |
| 140.91 | 1.85 |
| 688.48 | 7.29 |
| 677.17 | 7.44 |