I don’t know how to refine oil, but knowing that its refinable into diesel/gasoline is a pretty good start to looking for it. A head start on murdering some sperm whales for lighting industry seems easy enough to figure out. Partnering with metal smiths who might have a clue on making gun barrels, and pipe’s in general that could be used for advanced weaponry, would be an easy path to get governments to give me a ton of money for weapons research by just showing them some drawings. Doesn’t really matter if I ever figure out how to do it, just the vision of what is possible would make me richer than Musk. Richer if I can help enslave all of humanity to one empire.