Ofcourse its the Saudi's. Why? because Tesla can make their oil worthless. Strange times indeed.
No, it can't. Even if 100% of cars and trucks were electric, Saudi crude wouldn't be worthless.
The reason I don't think this cliche makes sense, is because if oil is going to get more expensive, whether because of scarcity or regulation to prevent climate change, then demand for oil will go away. Higher prices mean less revenue at some point. So it's rational to try to diversify into alternatives to oil, because if you don't, no matter what you do, markets will induce people to develop them.