RIVERSIDE (CNS) - The average price of a gallon of self-serve regular gasoline in the Inland Empire increased slightly, according to figures released today by the Oil Price Information Service.

The average of $4.555 in Riverside and San Bernardino counties is two-tenths of a cent higher than Sunday but 5.9 cents lower than the record high of $4.614 set June 22.

The average is 15.9 cents higher than last month and $1.483 higher than at this time last year.

The average had risen four-tenths of a cent from Friday to Saturday and fallen nine-tenths of a cent from Saturday to Sunday.