Midwest Gas Jumped 40 Cents Last Week on Joliet and Hormuz

The Joliet refinery in Illinois went dark on September 14 and has not come back. Within a week, drivers in five Great Lakes states were paying roughly 40 cents a gallon more than the week before, per GasBuddy data published September 21, while the national average rose 18.5 cents to $4.44. For a 12-gallon tank, that is a fill that now costs $53.28 against $37.68 a year ago, about $15.60 more each time and roughly $62 a month at four fills.

Key Takeaways The national average gasoline price hit $4.44 a gallon on September 21, per GasBuddy, up 34.4 cents in a month and $1.30 over the year. Michigan, Indiana, Ohio, Illinois and Wisconsin each saw pump prices rise more than 30 cents in one week af…