| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Massachusetts, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.567 | $3.567 |
| | 09/08/08 | $3.510 | $3.510 |
| | 09/01/08 | $3.549 | $3.549 |
| | 08/25/08 | $3.575 | $3.575 |
| | 08/18/08 | $3.648 | $3.648 |
| | 08/11/08 | $3.767 | $3.767 |
| | 08/04/08 | $3.856 | $3.856 |
| | 07/28/08 | $3.937 | $3.937 |
| |
| | Massachusetts, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.729 | $3.729 |
| | 09/08/08 | $3.639 | $3.639 |
| | 09/01/08 | $3.668 | $3.668 |
| | 08/25/08 | $3.690 | $3.690 |
| | 08/18/08 | $3.771 | $3.771 |
| | 08/11/08 | $3.894 | $3.894 |
| | 08/04/08 | $3.982 | $3.982 |
| | 07/28/08 | $4.054 | $4.054 |
| |
| | Massachusetts, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 09/15/08 | $3.833 | $3.833 |
| | 09/08/08 | $3.744 | $3.744 |
| | 09/01/08 | $3.773 | $3.773 |
| | 08/25/08 | $3.796 | $3.796 |
| | 08/18/08 | $3.874 | $3.874 |
| | 08/11/08 | $3.997 | $3.997 |
| | 08/04/08 | $4.087 | $4.087 |
| | 07/28/08 | $4.158 | $4.158 |
| |
| | Last Updated 9/15/2008 |