A gallon of regular now averages $2.05 around the state, up from about $1.96 last Monday, according to AAA, the Oil Price Information Service and Wright Express.

Late last week, regular-grade gas popped back above the $2 mark for the first time since early November.

Analysts say prices have climbed because of interruptions in production. Refineries have been going out of service for maintenance to get themselves ready for the peak summer driving season.

Gas remains much cheaper than a year ago, when the Ohio average for regular was $3.22 per gallon.