> remove our dependence on oil, and thus never need to fight wars for it
The US is the largest oil producer in the world by a significant margin. They don't have a dependency on foreign oil. They are also the largest refiner of oil products in the world.
Any wars related to oil are about other countries' dependence on foreign oil and refining.
If we don't need foreign oil, why are gas prices going up?
> The US is the largest oil producer in the world by a significant margin.
The US is also the second largest oil importer in the world. A true fact about oil is that it's not all the same, so lumping them all into a single category is a mistake when talking about production/refining/consumption.
> They don't have a dependency on foreign oil.
It does still, because local refining is optimized for a global market not domestic self-sufficiency. It would probably require a bit of the old "seizing the means of production" to change that, and the US is generally opposed to such things.