We are indeed the largest producer of oil and natural gas. In this case, "some" is like 70%. Maybe that's not "entirely reliant", but it's far from independence. If other countries stopped selling us oil, our car-centric society would be FUBAR for some time.
The US is the largest producer of oil and natural gas in the world. We’re also a net energy exporter.
We import some crude because our refineries are set up for it. That’s a long way from being “entirely reliant” on foreign fuel.