| FOB | 13/05/2011 |
| USD/thùng | Tăng/giảm |
| 99.65 | 0.68 |
| 126.20 | -0.61 |
| 123.45 | -0.2 |
| 120.41 | 0.41 |
| 126.99 | 1.59 |
| 125.64 | 1.59 |
| 108.08 | -0.33 |
| 126.79 | 1.6 |
| 645.40 | 14.86 |
| 634.81 | 14.15 |