One of the most important responsibilities the United States assumed following World War II was ensuring the stable flow of relatively inexpensive oil to the industrialized and industrializing countries of the world. A glance at a list of the top petroleum exporting countries shows that most of them are poor, have despotic governments, and experience frequent bouts of political instability and ideological extremism.
Hein, Jay; Clark, John; Ebel, Robert; Cha, Dong Hyung; and Lotspeich, Richard
"Oil. Changing Geopolitics of Oil in Asia & the USA,"
New England Journal of Public Policy:
2, Article 14.
Available at: http://scholarworks.umb.edu/nejpp/vol21/iss2/14