Embedded Player Gas prices have steadily risen a few pennies per week. Now, the average price is $3.60 per gallon nationwide. In some parts of the country, gas prices have already topped $4 dollars per gallon. Oil prices are up 25 percent since the start of the year. A week from now, voters in Indiana and North Carolina head to the polls for their primaries, and gas prices and the economy are on people's minds.