oil price information service

Drivers are paying an average of $4 for a gallon of gasoline for the first time. AAA and the Oil Price Information Service say the national average price for a gallon of regular gas rose to $4.005 overnight from $3.988.

But consumers in many parts of the country have already been paying well above that price for some time.

Gas is expected to keep climbing, putting greater pressure on consumers and businesses, because the price of oil is soaring in futures markets.

Light, sweet crude shot up nearly $11 a barrel Friday and approached $140 for the first time.

Drivers are paying an average of $4 for a gallon of gasoline for the first time. AAA and the Oil Price Information Service say the national average price for a gallon of regular gas rose to $4.005 overnight from $3.988.

But consumers in many parts of the country have already been paying well above that price for some time.

"I wouldn't rule out the possibility that we could get to $4"

At the pump, the national average price of a gallon of regular gas rose 0.8 cent Tuesday to $3.511, according to a survey of stations by AAA and the Oil Price Information Service. via SF Gate

"We do think prices, particularly for self-serve regular, are going to continue to go up"

Gas and diesel pump prices jumped to yet another record Friday, piling on the costs for motorists as well as consumers reliant on trucks, trains and ships that deliver goods to market.

Retail gasoline rose 0.8 cents to a national average of $3.365 a gallon, although drivers in California could expect to pay nearly 30 cents more for regular and over $4 a gallon for higher grades, according to AAA and the Oil Price Information Service.