That much is true...gasoline is in no way totally based on the price of oil...there are the refining costs, the transportation costs, the labor costs...and of course, the ridiculous gas taxes.
Sigh. I wish Thackney were still posting to FR. That guy knew of what he spoke.
Supply, general consumption, seasonal usage, diesel vs gas production changeover, spot shortages, "boutique blends" (custom requirements per state) point of sale "cash replacement cost" lag, prices in foreign (export) markets, and reaction to environmental legislation....etc etc etc
Of course all of the above work to create confidence, fear, caution and other logical and emotional reactions in the minds of speculators, who are bidding on unleaded gasoline futures and other derivatives in the US commodities markets...every minute of every day...from around the world.
This is all pretty much unseen and unreported, but you could follow it if......if you can stand to follow it.
If you like gambling, it's the ultimate online casino game.