Highest 1-week jump in gas prices in 2 years

Gas prices in Oregon have jumped more than 16 cents in the last week - the most dramatic spike over that time period in nearly two years.

Still, even with the rise, Oregon's gas prices remain below the national average, AAA officials said Tuesday in a news release. The price for a gallon of unleaded gas is $3.51 a gallon, compared with the national average of $3.53.

Officials say the rising costs are largely because of higher crude oil prices and the rise of mid-continent retail gasoline prices.

According to AAA, the last time gas prices rose so rapidly was between Feb. 25, 2011, and March 4, 2011, amid fears of gas supply disruption in Northern Africa and the Middle East.

Whole gas prices on the West Coast have skyrocketed more than 50 cents a gallon since mid-January, according to AAA. This region is in the middle of the refinery maintenance and the turnaround season to summer gasoline, officials said.