In a sane world, refinery stocks would do well with reduced input costs and higher margins, and the consumer would get much cheaper gas. We’ll see - it probably won’t work out like that.
It will not because the price oil is a small factor in the retail price of gasoline.
The government makes the most money via taxes. Refining and distribution are highly regulated right done to the exact blend of gas allow to be sold.
The wholesale price of gasoline, adjusted for inflation, is ridiculously cheap and is at historical lows.
WRT oil prices, gasoline prices go up like a rocket, but they fall like a feather. It was ever thus.