Oil refinery issues in the United States are sending prices at the pump up nationwide except for Illinois.

Over the past week, prices at the pump in Central Illinois are down about a nickel. But for other states - that's not the case. GasBuddy's Patrick DeHaan says prices are up in 37 out of the 50 states.

According to DeHaan, the refinery snag could shoot prices up 50 cents to one dollar per gallon in the corn belt.