http://ask.yahoo.com/ask/20030919.html
http://api-ec.api.org/filelibrary/May03imp.pdf
Rank, Location, Imports (thousands of barrels per day), # total imports, % domestic product supplied
1 Saudi Arabia 2,287 17.8% 11.9%
2 Canada 2,119 16.5% 11.0%
3 Venezuela 1,638 12.8% 8.5%
4 Mexico 1,540 12.0% 8.0%
5 Nigeria 958 7.5% 5.0%
6 United Kingdom 519 4.1% 2.7%
7 Algeria 377 2.9% 2.0%
8 Angola 356 2.8% 1.8%
9 Norway 303 2.4% 1.6%
10 Virgin Islands* 258 2.0% 1.3%
Other 2,459 19.2% 12.8%
Total 12,814 100.0% 66.5%
OPEC Countries 5,619 43.9% 29.1%
Persian Gulf Countries 2,637 20.6% 13.7%
http://hypertextbook.com/facts/2000/TanyaAlbukh.shtml
Fifty years ago, the United States was self-sufficient in its supply of petroleum. Today, it imports more than half of its petroleum and consumes 25 percent of the world supply. Petroleum dominates the transportation sector of the energy consuming economy. This domination rose from 77 percent in 1949 to 97 percent in 1998. Our increasing dependence on petroleum can already be detected in 1972, when the daily consumption was approximately 2.6 x 106 cubic meters (16.4 million barrels) per day. By 1997, this number rose to 3.0 x 106 m3 (18.6 million barrels) per day. Due to increasing growth of industry (e.g. newly invented appliances, car production) over the past twenty-five years, the average annual growth rate of United States total petroleum consumption was 0.5 percent.
Top World Oil Producers, Exporters, Consumers, and Importers, 2003
This chart shows we consume 20% of the total global oil production. Let's go with the lower percentage, because formerly developing nations that are now surpassing the U.S. in industry are consuming more petroleum for themselves.
Call it 20% of all the world's consumption is in the U.S., or roughly 5% of the planet's human population consume 20% of the petroleum.
Of course, what these figures show is what is sold to and consumed by Americans, and not what is controlled and provided by American owned companies to other nations. It's not likely to be a lot higher, as most nations nationalised their own oil production, or have their own energy companies at work.
