A weekly review of gas prices by GasBuddy.com says prices in Omaha rose 10.5 cents in the past week alone.
The city's average price for unleaded fuel now sits at $3.30/gallon. That's slightly lower than the national average, which now sits at $3.40/gallon. Iowa's average is equal to the national.
Compared to a year ago, gas prices in Omaha are much lower than they were in 2013. Those prices were around $3.75/gallon.
"The rate of increase in the national average has accelerated over the last week, and the worst is likely yet to come," said GasBuddy analyst Patrick DeHaan.
Experts say those price spikes are due to oil refinery maintenance and unrest in oil-producing countries Venezuela and South Sudan.
The lowest gas prices can be found in Billings, Montana this week, where fuel costs $3.08/gallon. Consumers are finding the highest prices in Santa Barbara, California, where prices hover around $3.89/gallon.