I'm not sure who told you that, but it's not true.  The U.S. imports 12 million barrels of oil each day, and exports 5 million.  Vietnam is a net exporter of oil, and you'll have to do your own homework on the other two (but I'll tell you none of the three you mention is in the top 15 list of oil importers or consumers).  Start here: Petroleum#Petroleum_by_country if you want to see the sources.  It all comes from the CIA, not some commie plot machine.  Now, please refer to wp:talk to see the policy telling us that article talk pages are for discussing ideas that can be incorporated into the article, rather than general forums.