OPEC

http://en.wikipedia.org/wiki/OPEC
http://www.opec.org/opec_web/en/
http://www.opec.org/opec_web/en/about_us/24.htm
http://www.opec.org/opec_web/en/about_us/25.htm

Video
http://www.aljazeera.com/programmes/insidestory/2012/06/201261553130790403.html