| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Midwest, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.816 | $1.864 | $1.823 |
| | 01/05/09 | $1.723 | $1.793 | $1.733 |
| | 12/29/08 | $1.560 | $1.612 | $1.567 |
| | 12/22/08 | $1.614 | $1.680 | $1.623 |
| | 12/15/08 | $1.636 | $1.695 | $1.644 |
| | 12/08/08 | $1.601 | $1.605 | $1.602 |
| | 12/01/08 | $1.715 | $1.726 | $1.717 |
| | 11/24/08 | $1.740 | $1.815 | $1.750 |
| |
| | Midwest, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.894 | $1.990 | $1.907 |
| | 01/05/09 | $1.795 | $1.920 | $1.812 |
| | 12/29/08 | $1.642 | $1.739 | $1.655 |
| | 12/22/08 | $1.693 | $1.800 | $1.707 |
| | 12/15/08 | $1.720 | $1.809 | $1.732 |
| | 12/08/08 | $1.683 | $1.721 | $1.688 |
| | 12/01/08 | $1.802 | $1.846 | $1.808 |
| | 11/24/08 | $1.816 | $1.941 | $1.832 |
| |
| | Midwest, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $2.020 | $2.087 | $2.029 |
| | 01/05/09 | $1.933 | $2.014 | $1.944 |
| | 12/29/08 | $1.754 | $1.834 | $1.765 |
| | 12/22/08 | $1.812 | $1.901 | $1.824 |
| | 12/15/08 | $1.838 | $1.910 | $1.848 |
| | 12/08/08 | $1.801 | $1.824 | $1.804 |
| | 12/01/08 | $1.928 | $1.949 | $1.931 |
| | 11/24/08 | $1.952 | $2.041 | $1.964 |
| |
| | Last Updated 1/12/2009 |