Gas prices keep rising in Minn.

Pumping gas
A customer fills up his gas tank at a Minneapolis service station.
MPR Photo/Jess Mador

Gas prices keep rising in Minnesota and across the country.

According to the Web site Minnesotagasprices.com, the average cost of unleaded gas in the state is just over $3.40 a gallon. It peaked at $3.41 a gallon on Sunday.

Minnesota is a bit behind the national average of $3.49 a gallon.

Gas averaged $2.67 a gallon in Minnesota a year ago.