True, more use of EVs will reduce oil demand somewhat and lower prices. Though that again just means less investment in exploration and research, and temporarily seal low yield oil fields, we will still pump more or less the same enormous amount of oil we do today, if not more due to ever-increasing Earth population.
Supply and demand: lower demand, lower prices.
To use a more specific economic law, the price of a commodity is the cost of the marginal unit. Right now there is so much demand that the world uses all the $10 Saudi oil it can, all the Norwegian oil, all the fracked oil, but not all of the Canadian tar sands oil. That costs about $60 per barrel to extract and transport. Thus the current price.
This shitshow is actually widely supported and created by US and Europe, btw.
True but incomplete: In Europe we also finance the Russian shitshow by buying their natural gas.