OPEC
http://www.opec.org/home/The Organization of Petroleum Exporting Countries (OPEC), an international oil cartel, is composed of 12 member countries: Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela. The goal of the cartel is to help stabilize oil prices in international markets and allow oil producers to achieve a reasonable rate of return.