Average cost of gas down to $3 a gallon

updated 4:37 p.m. ET Dec. 9, 2007

CAMARILLO, California - The average price in the United States for gasoline went down about 9 cents over the last three weeks, according to a survey released Sunday.

The average price of regular gasoline on Friday was $3 a gallon, mid-grade was $3.12, and premium was $3.24, oil industry analyst Trilby Lundberg said.

The nation's lowest price was in Tulsa, Oklahoma, where a gallon of regular cost $2.74 on average. The highest was in San Francisco at $3.42, according to the Lundberg Survey of 7,000 stations across the U.S.

Don't miss this on MSNBC.com Pass it on: Sons of infertile men may be next The eight biggest Olympic marketing debacles Reality show judges range from wise to wacko Cosmic Log: Is this your jetpack? Forget your inhibitions: World's sexiest islands

MORE FROM OIL & ENERGY

Oil & Energy Section Front

Crude advances after Iran seizes Iraqi oil field Exxon Mobil to buy XTO Energy for $31 billion Iraq hails oil auction but risky sites shunned Iraq opens big slice of oil riches to bidders Price of gas drops, but not by very much Saudi oil minister says oil is at ‘perfect’ price Newsweek: New market bubble is brewing Chevron 3Q profit slumps 51 percent BusinessWeek: The coming energy revolution Solar power outshining Colorado’s gas industry Oil & Energy Section Front   Add Oil & Energy headlines to your news reader: