Yes I know.
The questions are too difficult.

And you are trying to solve a problem
that is not the real problem (price fixing, competition).
Good luck.

Why is it we have the cheapest gas of almost any developed
country?

Got many more questions.

You can go and buy your own oil by the barrel.
Transport it, refine it, and pull out your own octane.
You will need some papers to send to the government.