Canada

Alberta went for many years benefiting from equalization. Saskatchewan just recently became a 'have' province after spending decades as a have not. Yes, both provinces were sucking off Ontario's tit while they were scratching dirt trying to feed themselves, and there were no complaints then...but now, conveniently when oil oligarchs started deciding the politics of those two provinces, now they become ungrateful assholes who want to keep all their money and not help anyone else. Fuck you, I got mine. A tale as old as time.

We need to nationalize oil and gas and start a proper sovereign wealth fund. Get the private money (especially US) out of there. As soon as we do that I bet all this division would fizzle out.