who makes more from gas sales: .gov or industry?

Yes, I know what the margin is, thanks for asking.

Perspective?

On a national average 15% of the price of a gallon of gas is taxes. The other 85% is everything else. You can debate over how much of the 85% is “cost” and how much is “profit”.

Really. Saying this…

…indicates the opposite, unless you want to substantiate your argument that about 3% gross margin is “a lot of the revenue.”

No such thing without context, which is often overlooked.