U.S. Might Have More Oil Resources Than Saudi Arabia, But...
Thus, while the U.S. might indeed have greater oil resources than Saudi Arabia, U.S. oil reserves (per the BP Statistical Review of World Energy) are only about 1/10th those of Saudi Arabia. The distinction is important.
http://www.forbes.com/sites/energysource/2012/03/29/u-s-might-have-more-oil-resources-than-saudi-arabia-but/