Gas prices rising again: See where Oregon ranks in the cheapest, most expensive states
Gas prices are rising again.
The national average of a gallon of regular unleaded gas jumped 13 cents last week to $3.71, an eight-month high, according to AAA motor club.
"The primary cause appears to be the oil price, which has marched nearly $4 higher in the past few days to hover near $80 per barrel," the news release said. "As oil accounts for almost 50% of the cost of a gallon of gas, higher oil prices usually mean higher pump prices."
This summer's heat wave has also contributed to the rising pump prices, some experts say, as extreme heat prevents refineries from running at full capacity.
“If refineries in your region have lower or falling utilization rates, you’re more likely to see gas prices rise,” said Patrick De Haan, head of petroleum analysis of GasBuddy, a platform that helps people find cheap gas.
Nationwide, refinery utilization decreased by 0.9 percentage points from last week to 93.6%, De Haan said. Gasoline production fell to 9.5 million barrels per day, and distillate fuel production dropped to 4.8 million barrels per day last week.
“These percentages show how much of a region’s overall capacity was used to refine oil,” De Haan said. “It’s important to note these percentages because the lower the utilization percentage, the lower output, which has a direct impact on local gasoline prices.”
Here's where you can find the most expensive and cheapest gas by state, according to AAA:
States with most expensive gas
California: $5.05 per gallon
Washington: $4.99 per gallon
Hawaii: $4.73 per gallon
Oregon: $4.65 per gallon
Alaska: $4.41 per gallon
Nevada: $4.33 per gallon
Utah: $4.11 per gallon
Illinois: $4.06 per gallon
Idaho: $4.00 per gallon
Colorado: $3.97 per gallon
States with cheapest gas
Mississippi: $3.33 per gallon
Louisiana: $3.44 per gallon
Alabama: $3.45 per gallon
Kentucky: $3.46 per gallon
Ohio: $3.46 per gallon
Tennessee: $3.48 per gallon
Texas: $3.49 per gallon
Arkansas: $3.50 per gallon
South Carolina: $3.54 per gallon
Oklahoma: $3.58 per gallon
This article originally appeared on USA TODAY: Gas prices up: See how Oregon ranks in cheapest, most expensive states