Most oil is bottled in America. Chevron is also an American company. British Petroleum and Royal Dutch Shell are headquartered outside of America, but any Castrol or Pennzoil bottles you pick up say made or bottled in America.
So I guess it depends on what you mean by "American made".
If you mean which oil companies have their worldwide headquarters in the USA, here are some of them:
Atlantic Richfield (ARCO)
I guess I would want American as possible.taken from the ground here bottled here and sold here.
You want American Oil taken from the Ground? That may be hard, I think the US imports 70% of its oil. Wouldn't you just want the best oil for your car? Does it matter where it comes from? If Exxon buys oil from Libya (some of the worlds best oil) and refines it and makes a profit from it, does it matter where it comes from?
BP is 45% owned by Americans. If they took oil from the ground in the US and sold it, would that meet your needs? Just curious...