| FOB | 31-05-11 |
| USD/thùng | Tăng/giảm |
| 102.7 | 2.11 |
| 126.34 | 1.69 |
| 123.31 | 1.76 |
| 120.56 | 1.89 |
| 129.40 | 1.61 |
| 127.75 | 0.61 |
| 106.09 | 0.87 |
| 129.15 | 1.53 |
| 659.43 | 6.81 |
| 649.54 | 7.7 |