| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Colorado, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.547 | $1.547 |
| | 01/05/09 | $1.493 | $1.493 |
| | 12/29/08 | $1.535 | $1.535 |
| | 12/22/08 | $1.571 | $1.571 |
| | 12/15/08 | $1.596 | $1.596 |
| | 12/08/08 | $1.644 | $1.644 |
| | 12/01/08 | $1.717 | $1.717 |
| | 11/24/08 | $1.806 | $1.806 |
| |
| | Colorado, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.660 | $1.660 |
| | 01/05/09 | $1.606 | $1.606 |
| | 12/29/08 | $1.652 | $1.652 |
| | 12/22/08 | $1.681 | $1.681 |
| | 12/15/08 | $1.708 | $1.708 |
| | 12/08/08 | $1.755 | $1.755 |
| | 12/01/08 | $1.829 | $1.829 |
| | 11/24/08 | $1.923 | $1.923 |
| |
| | Colorado, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.770 | $1.770 |
| | 01/05/09 | $1.716 | $1.716 |
| | 12/29/08 | $1.759 | $1.759 |
| | 12/22/08 | $1.791 | $1.791 |
| | 12/15/08 | $1.819 | $1.819 |
| | 12/08/08 | $1.865 | $1.865 |
| | 12/01/08 | $1.936 | $1.936 |
| | 11/24/08 | $2.028 | $2.028 |
| |
| | Last Updated 1/12/2009 |