This oil cartel controls 40% of world production
Typically, if OPEC reduces the production targets for its member nations, oil ... 
OPEC members supply roughly 40% of the world's oil and control... [DOC] [TLE] Viennese whirl | The Economist [PAR] Nov 27, 2014 ... OPEC, the cartel which controls 40% of the world's oil production, fails on all 
counts.