The cost of gasoline in the U.S. has dropped by more than half since 2009, to $3.20 per gallon, according to a new study from the nonprofit group Public Citizen.
But a number of factors have pushed the price up, including an influx of cheap oil, the expansion of fuel blends, and a decline in the value of the dollar.
The analysis comes after the Food and Drug Administration announced a rule last month that allows states to charge consumers more for fuel than previously allowed.
That is expected to drive up the cost of fuel in the next year, Public Citizen’s study found.
The new rule will increase the price of some fuel blends by about $1.60 a gallon.
The agency says it will “add incentives to make fuel more attractive to consumers and reduce the price differential for some fuels.”
The agency has previously raised prices on some gasoline blends, including some used by small businesses and the elderly.
The study estimated that the rule will raise the cost to consumers $1,988 per year, or about 5 percent of their annual income.
But that’s still more than the cost for the average consumer of gas, according the report.
The new rule, which took effect last month, also raises the price on some premium fuels by $1 a gallon, increasing the price for some brands by nearly $1 per gallon.
In a statement, the agency said that fuel prices are determined by “economic factors” and that the changes will “improve the efficiency and affordability of our fuel.”
But it said the rule does not address “any specific factors affecting gasoline consumption and will not affect consumers.”