http://www.nytimes.com/2012/03/11/op...d-the-oil.html

The results indicated that there was a “a significant negative relationship between the money countries extract from national resources and the knowledge and skills of their high school population,” said Andreas Schleicher, who oversees the PISA exams for the O.E.C.D. “This is a global pattern that holds across 65 countries that took part in the latest PISA assessment.” Oil and PISA don’t mix. (See the data map at: http://www.oecd.org/dataoecd/43/9/49881940.pdf.)