| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Colorado, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.531 | $2.531 |
| | 06/22/09 | $2.546 | $2.546 |
| | 06/15/09 | $2.537 | $2.537 |
| | 06/08/09 | $2.509 | $2.509 |
| | 06/01/09 | $2.437 | $2.437 |
| | 05/25/09 | $2.383 | $2.383 |
| | 05/18/09 | $2.253 | $2.253 |
| | 05/11/09 | $2.196 | $2.196 |
| |
| | Colorado, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.645 | $2.645 |
| | 06/22/09 | $2.659 | $2.659 |
| | 06/15/09 | $2.650 | $2.650 |
| | 06/08/09 | $2.621 | $2.621 |
| | 06/01/09 | $2.551 | $2.551 |
| | 05/25/09 | $2.497 | $2.497 |
| | 05/18/09 | $2.365 | $2.365 |
| | 05/11/09 | $2.308 | $2.308 |
| |
| | Colorado, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 06/29/09 | $2.752 | $2.752 |
| | 06/22/09 | $2.767 | $2.767 |
| | 06/15/09 | $2.760 | $2.760 |
| | 06/08/09 | $2.731 | $2.731 |
| | 06/01/09 | $2.660 | $2.660 |
| | 05/25/09 | $2.606 | $2.606 |
| | 05/18/09 | $2.474 | $2.474 |
| | 05/11/09 | $2.418 | $2.418 |
| |
| | Last Updated 6/29/2009 |