CAMARILLO, Calif. (AP) -- The price of a gallon of gasoline held steady over the past two weeks, at $2.66 for a gallon of regular unleaded.

That's according to the national Lundberg Survey of fuel prices released Sunday.

Analyst Trilby Lundberg says the U.S. price of mid-grade on Friday was $2.79 and premium was at $2.90.

Wichita, Kan., had the lowest price, $2.40 for a gallon for regular. San Francisco was the highest at $3.02.

Regular gas cost $1.44 more per gallon at this time last year. Diesel was at $2.65 a gallon Friday -- $2.19 below its year-ago price.