CAMARILLO, Calif. (AP) – Gas prices increased in the past two weeks as the cost of crude oil jumped, and a combination of factors could push prices at the pump even higher, an industry analyst said Sunday.

The average retail price for all three grades increased 6.71 cents to $2 per gallon between Feb. 19 and Friday, said Trilby Lundberg, who publishes the semimonthly Lundberg Survey of 7,000 gas stations across the country.

The most popular grade, self-serve regular, was priced at $1.97 a gallon, while customers paid $2.07 for midgrade. Premium averaged $2.16 a gallon for the period. During the past two weeks, crude oil prices rose $5.43 to $53.78 per barrel.

Lundberg said even higher prices can be expected at the pump.

The highest average gas price in the nation for regular unleaded was $2.32 per gallon in Honolulu. The lowest was $1.76 in Charleston, S.C.