The average price of a gallon of gas in Michigan is $4.22, and as of today (Thursday) in Flint, you'll be hard-pressed to find it for less than $4.29. Expect those prices to go up even further. also reports that the national average is now $3.64, and that price is headed down.

Gregg Luskoski, a petroleum analyst for Gas Buddy says that five refineries are creating the price hike. One is located in Michigan, one is in Indiana, and three are in Illinois.

“I don’t want people to start getting paranoid, but the Great Lakes and Michigan is where all these problems are connected."

One of the plants in Illinois expected to be shut down for one month for maintenance, but had to resort to buying gasoline at 'open market' prices after a 42-day hiatus.

A Marathon refinery in southwest Detroit suffered an explosion in April, shutting down the plant. Crews are unsure how long it will take for the facility to resume pumping at 100 percent.

Analysts say gas prices may not level off until sometime in June, at the earliest.

- George McIntyre
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