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Gas prices rising, but some good news: Pro

Consumers are paying more at the pump these days, despite low oil prices. However, Californians will particularly be feeling some pain in the months to come, one pro told CNBC Monday.

That's because the explosion Wednesday at an Exxon Mobile Refinery in Torrance, California, could shut the plan down "for months and months and months," affecting California gas prices, Andy Lipow said in an interview with "Closing Bell."

"That's really bad news for the California consumer, and I expect retail price there to go above $3 in the next week," the president of Lipow Oil Associates said.

Gasoline prices are rising across the country. The average price of gas rose 13 cents in the past two weeks, bringing it up 26 cents since prices bottomed out after a nine-month slide ended in January, according to the Lundberg survey released on Sunday.

Regular gasoline rose to an average price of $2.33 per gallon, according the survey.

A customer refuels his vehicle at a U-gas station in Miami.
Getty Images
A customer refuels his vehicle at a U-gas station in Miami.

Its publisher, Trilby Lundberg, said a steelworkers' strike and the refinery explosion helped propel prices higher.

Read More Impact of steelworkers' strike unclear: Expert

It is also the time of year when refiners go into maintenance mode and start to switch over the more expensive summer blend of gasoline.

"When we go from the winter-grade gasoline to the summer-grade gasoline, that's adding about 20 cents a gallon," Lipow said.

California will likely see an additional hike of 20 cents a gallon because it has the most stringent specifications, he added.

However, Lipow said there is some good news.

"Gasoline inventories are rather high for this time of year. Refiners are operating at historically high levels. I don't really see a supply issue going forward and that, to me, is going to temper the price of retail gasoline as we go through the summer," he said.

Lipow is anticipating the summertime average to be $2.50-$2.60 a gallon.

Read MoreThis is why you're paying more at the pump

—CNBC's Jackie DeAngelis and Reuters contributed to this report.