| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Boston, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.575 | $3.575 |
| | 09/08/08 | $3.521 | $3.521 |
| | 09/01/08 | $3.560 | $3.560 |
| | 08/25/08 | $3.587 | $3.587 |
| | 08/18/08 | $3.660 | $3.660 |
| | 08/11/08 | $3.781 | $3.781 |
| | 08/04/08 | $3.859 | $3.859 |
| | 07/28/08 | $3.933 | $3.933 |
| |
| | Boston, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.733 | $3.733 |
| | 09/08/08 | $3.649 | $3.649 |
| | 09/01/08 | $3.680 | $3.680 |
| | 08/25/08 | $3.701 | $3.701 |
| | 08/18/08 | $3.780 | $3.780 |
| | 08/11/08 | $3.906 | $3.906 |
| | 08/04/08 | $3.984 | $3.984 |
| | 07/28/08 | $4.051 | $4.051 |
| |
| | Boston, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.838 | $3.838 |
| | 09/08/08 | $3.752 | $3.752 |
| | 09/01/08 | $3.783 | $3.783 |
| | 08/25/08 | $3.804 | $3.804 |
| | 08/18/08 | $3.883 | $3.883 |
| | 08/11/08 | $4.008 | $4.008 |
| | 08/04/08 | $4.089 | $4.089 |
| | 07/28/08 | $4.154 | $4.154 |
| |
| | Last Updated 9/15/2008 |