| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Boston, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.688 | $1.688 |
| | 01/05/09 | $1.622 | $1.622 |
| | 12/29/08 | $1.601 | $1.601 |
| | 12/22/08 | $1.632 | $1.632 |
| | 12/15/08 | $1.649 | $1.649 |
| | 12/08/08 | $1.705 | $1.705 |
| | 12/01/08 | $1.797 | $1.797 |
| | 11/24/08 | $1.887 | $1.887 |
| |
| | Boston, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.821 | $1.821 |
| | 01/05/09 | $1.753 | $1.753 |
| | 12/29/08 | $1.743 | $1.743 |
| | 12/22/08 | $1.771 | $1.771 |
| | 12/15/08 | $1.796 | $1.796 |
| | 12/08/08 | $1.861 | $1.861 |
| | 12/01/08 | $1.953 | $1.953 |
| | 11/24/08 | $2.044 | $2.044 |
| |
| | Boston, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.929 | $1.929 |
| | 01/05/09 | $1.855 | $1.855 |
| | 12/29/08 | $1.839 | $1.839 |
| | 12/22/08 | $1.871 | $1.871 |
| | 12/15/08 | $1.899 | $1.899 |
| | 12/08/08 | $1.967 | $1.967 |
| | 12/01/08 | $2.068 | $2.068 |
| | 11/24/08 | $2.158 | $2.158 |
| |
| | Last Updated 1/12/2009 |