With the start of the summer travel season just weeks away, you'd better plan on setting aside more money for gas.  The average price of gas in Oregon is up 17 cents in the last week to an average of $3.77 a gallon.  Analysts say the price of crude oil is the main reason for the increase; it's increase more than $10 a barrel over the last three weeks to $9.  The longer crude prices remain high, the higher the price of gas will go.  Add the demand of the summer travel season that'll begin next month and that'll put more pressure to keep gas prices high.