Nationwide, the average cost of gas has hit a record $4 a gallon, which means some areas, like California, the average price has topped $4.50 a gallon.

MO Gas PricesBut in Missouri, the average price of $3.82 a gallon is the lowest in the nation - in part because of ethanol. The state implemented a ten percent ethanol mandate this year, which a recent economic study said amounted to saving consumers almost 10 cents a gallon at the pump.

And the mandate will stay in place statewide, despite a recent request for a waiver by Kansas City. Missouri Governor Matt Blunt denied that waiver on Friday.

“We have reviewed the request for a waiver of the E-10 standard in the Kansas City area,” Gov. Blunt said. “After thorough consideration of all aspects of this waiver request, I have decided it is in the best interest of the state to not issue the waiver.”

Missouri CornThat was good news for Missouri corn growers, who strongly supported the state renewable fuels standard.

“With gasoline prices already soaring, removing ethanol in Kansas City would send prices even higher,” said Missouri Corn Growers Association president Mike Geske. “By denying the waiver, Gov. Blunt is preventing consumers from experiencing additional pain at the pump.”