After a brief drop, gas prices are again on the rise.
Analysts say the national average for regular gas has gone up three cents in the past three weeks.
It is now, on average, $2.32 per gallon.
According to Lundberg's survey of 7,000 gas stations across the country, the average cost for mid-grade gas is $2.43 per gallon.
The lowest prices in the country were found in Cheyenne, Wyoming.
The highest were in Honolulu, Hawaii.