| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Rocky Mountain, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.602 | $2.602 |
| | 06/22/09 | $2.604 | $2.604 |
| | 06/15/09 | $2.573 | $2.573 |
| | 06/08/09 | $2.517 | $2.517 |
| | 06/01/09 | $2.423 | $2.423 |
| | 05/25/09 | $2.364 | $2.364 |
| | 05/18/09 | $2.240 | $2.240 |
| | 05/11/09 | $2.181 | $2.181 |
| |
| | Rocky Mountain, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.716 | $2.716 |
| | 06/22/09 | $2.714 | $2.714 |
| | 06/15/09 | $2.680 | $2.680 |
| | 06/08/09 | $2.618 | $2.618 |
| | 06/01/09 | $2.515 | $2.515 |
| | 05/25/09 | $2.461 | $2.461 |
| | 05/18/09 | $2.340 | $2.340 |
| | 05/11/09 | $2.282 | $2.282 |
| |
| | Rocky Mountain, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.823 | $2.823 |
| | 06/22/09 | $2.822 | $2.822 |
| | 06/15/09 | $2.788 | $2.788 |
| | 06/08/09 | $2.728 | $2.728 |
| | 06/01/09 | $2.629 | $2.629 |
| | 05/25/09 | $2.573 | $2.573 |
| | 05/18/09 | $2.451 | $2.451 |
| | 05/11/09 | $2.394 | $2.394 |
| |
| | Last Updated 6/29/2009 |