How does the united states meet its scarcity or refined petroleum products? what other approaches could it use?

The reason everybody doesn't have what they want is that, if everybody could have everything they want, whenever they want it, then we wouldn't need economics. Or maybe politics or warfare, either. We could all just sit around playing on top of our endless mountain of toys. But the real world doesn't work quite like that. We can't have it all. We have to make choices. Hope I helped!