BusinessGas Prices Rise Further Ahead of Driving SeasonGas Prices Rise Further Ahead of Driving SeasonThe Associated PressGas and diesel prices are reaching new records yet again, adding to the pressure on drivers planning road trips for the coming holiday weekend. (May 19)Gas and diesel prices are reaching new records yet again, adding to the pressure on drivers planning road trips for the coming holiday weekend.Americans are now paying an average of $3.79 for a gallon of regular gas, with drivers in some parts of the country paying wll over $4 a gallon. Pump prices may have further to go still, pressured by rising oil costs and a refinery shutdown. [Notes:SOT Ira Eckstein_ Oil Trader] And while prices are expected to continue to tick higher, there still is relatively cheap gas available in at least one city. The Lundberg Survey of 7,000 stations nationwide found the average price of a gallon of regular sold for $3.48 in Tucson, Ariz. ___ ___, The Associated Press.(****END****)