[quote=@Dinh AaronMk]
<Snipped quote by ClocktowerEchos>

I'm sure you could use ethanol too but corn is a very inefficient form of ethanol and without machines to farm the corn then turning corn or soy into fuel would be a severe waste of food crops.

And while Illinois has at least one major refinery it'd be something likely contested by Kansas it's so close to them.
[/quote]

Yeah, there's other states that could probably produce the gas / oil needed that would fare better in the nuclear apocalypse. I mean, frankly... A few cities in Texas might get struck, but a lot of it isn't very high priority, and there are oil wells in those regions.