(Portland, OR) -- Gas prices in Oregon dropped two cents over the last week to an average of three-dollars-87-cents a gallon. Triple-A reports the national average also declined two cents to three-44 a gallon. As the summer travel season starts to slow, demand for gas is going down. Oregon's average is 81 cents a gallon lower than this time last year. Oil production in the U.S. hit a record last week which should keep supplies strong and help move prices lower. Unrest in the Middle East or a hurricane could affect future prices.