Average retail gasoline prices in Indiana have risen 15.4 cents per gallon in the past week, averaging $2.33/g according to GasBuddy.com. That compares with the national average that has not moved in the last week from $2.42/g. Prices yesterday were $1.32 per gallon lower than the same day one year ago and are unchanged compared to a month ago. The national average has increased 12.1 cents per gallon during the last month and stands $1.10 per gallon lower than this day one year ago. Currently, the cheapest place to get gas in Warsaw is at the Sunoco on S. Buffalo St. Their cost is at $2.18/gallon.