(Portland, OR) -- The average price of gas in Oregon held steady over the last week. Triple-A reports Oregon's average remained at three-77 after increasing nearly a quarter over the last month. Problems with West Coast refineries have been resolved and the supply of gas has increased, which took pressure off prices. Nationally, the average declined two cents to three-14 a gallon. The switch to summer blends of fuel will cause prices to rise through summer.