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CAMARILLO, Calif. (AP) — The average U.S. price of regular-grade gasoline went up 2 cents over the past two weeks, to $3.25 per gallon.

Industry analyst Trilby Lundberg of the Lundberg Survey said Sunday the increase resumes the climb in gas prices the past ten months, following a two-week break where the average price dropped by 2 cents.

The average prices for a gallon of gas in Denver is $3.53.

The lowest price for gas is at Costco in Littleton where gas is $3.08 per gallon as of Monday at 6:45 a.m.

Nationwide, the highest average price for regular-grade gas is in the San Francisco Bay Area, at $4.48 per gallon. The lowest average is in Houston, at $2.74 per gallon.

According to the survey, the average price of diesel was $3.34 a gallon, up 2 cents since Aug. 27.