Gas prices edge up to $2.80 a gallon

ATLANTA (CNN) -- Gas prices rose a nickel during the past two weeks, to an average of $2.80 per gallon of self-serve regular, a national survey said Sunday.

That's 60 cents more than prices at this time last year, but 38 cents below the all-time peak of $3.18 set on May 18, said Trilby Lundberg, publisher of the "Lundberg Survey."

The increases reported in the survey, which was carried out Oct. 19 and Oct. 5, will likely continue, she predicted.

"This nickel is a drop in the bucket," she said.

Over the same two-week period, the price of crude oil went up the equivalent of 18 cents per gallon.

That hike is not fully reflected at the pump because refiners, marketers and retailers have not passed it along, she said.

"The margin squeeze alone for refiners, marketers and retailers is enough to tell us that gasoline prices will continue to rise," she said.

The highest prices were in San Francisco, where drivers paid $3.17 per gallon of self-serve regular; and lowest in Newark, N.J., where they paid $2.56.

Here are some other cities' prices:

Tulsa, Okla.: $2.63

Boston: $2.70

Atlanta: $2.72

Philadelphia, Pa.: $2.74

El Paso, Texas: $2.78

Salt Lake City: $2.82