most of our daily lives need it or in other words oil is a kind of "black gold" that many big countries want to acquire precisely because it is becoming increasingly scarce, a fact we cannot denies that today's life "black gold" is indispensable, but its use is so polluting for the environment today that its use in large developed countries such as the United States also has limitations. they replace them with steam or solar powered machines which are very popular now.
Forget what you see in the news, extinction of oil is something that's not happening anytime soon. It's practically useful in our everyday day life though pollution is a problem.
You talk about solar but you forget to talk about the limitations and the amount of energy generated from oil is way more efficient than solar. You know about of panel and inverter need to power huge industrial engines? That will require lots of cost.
Steam on the other hand need coal or another source of power to keep the energy running.