PORTLAND — The average price for a gallon of gas in Oregon has topped $3 to reach the highest level in nearly two years.

The Oregon-Idaho chapter of AAA says the statewide average for regular gas gained four cents this week to move to $3.04. The last time prices were this high in Oregon was in October 2008.

The national average jumped 5 1/2 cents to $2.78, the same price just before the Memorial Day holiday in May.

Officials say crude oil prices have been at three-month highs, putting upward pressure on pump prices. Crude oil is trading at around $80 per barrel, compared with $82 last week and $77 the previous week.