| | Retail Gasoline Prices by Grade by Formulation |
| | . |
| | Houston, Regular |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.591 | $1.591 |
| | 01/05/09 | $1.467 | $1.467 |
| | 12/29/08 | $1.437 | $1.437 |
| | 12/22/08 | $1.480 | $1.480 |
| | 12/15/08 | $1.457 | $1.457 |
| | 12/08/08 | $1.574 | $1.574 |
| | 12/01/08 | $1.638 | $1.638 |
| | 11/24/08 | $1.699 | $1.699 |
| |
| | Houston, Midgrade |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.725 | $1.725 |
| | 01/05/09 | $1.609 | $1.609 |
| | 12/29/08 | $1.591 | $1.591 |
| | 12/22/08 | $1.639 | $1.639 |
| | 12/15/08 | $1.619 | $1.619 |
| | 12/08/08 | $1.724 | $1.724 |
| | 12/01/08 | $1.790 | $1.790 |
| | 11/24/08 | $1.857 | $1.857 |
| |
| | Houston, Premium |
| | . |
| | Conventional |
| | Date | | Areas | | RFG Areas | | Average |
| | 01/12/09 | $1.840 | $1.840 |
| | 01/05/09 | $1.731 | $1.731 |
| | 12/29/08 | $1.700 | $1.700 |
| | 12/22/08 | $1.755 | $1.755 |
| | 12/15/08 | $1.743 | $1.743 |
| | 12/08/08 | $1.857 | $1.857 |
| | 12/01/08 | $1.912 | $1.912 |
| | 11/24/08 | $1.977 | $1.977 |
| |
| | Last Updated 1/12/2009 |