(Portland, OR) -- The price of gas continues to decline in Oregon. Over the last week, Triple-A reports prices fell six cents to four-09 a gallon. Strong supplies and weaker than usual demand are causing prices in several states to go down. Oregon's average is 30 cents lower than a month ago and 44 cents less than a year ago. The national average increased a penny to three-44, because of price increases in several Great Lakes states.  In Bend, the local average dropped four cents to 3.92.