It depends on what you mean by “independent”.
If you limit it to the America’s it should be easily doable.
The vast majority of our oil comes from the US, Canada, Mexico and south America. If I remember correctly that accounts for at least 80% of our total use.
I don’t have a problem buying from Canada or Mexico. I don’t believe Brazil is a problem either.
Yes, a lot better buying from them than from the Mideast, with the possible exception of Mexico. But I'd rather see us independent of all foreign oil.