OPEC and IEA chief at odds over global demand for oil, gas and coal
Oil producers took issue with a prediction by the energy agency's chief that demand for fossil fuels will peak by 2030.
Organization of the Petroleum Exporting Countries (OPEC)
Five major oil exporters founded the Organization of the Petroleum Exporting Countries, or OPEC, at Baghad in 1960, to influence the global oil markets by coordinating policies among member nations. Thirteen countries in Africa, Latin America and the Middle East now belong to the Vienna-based organization, accounting for four-fifths of the world's 'proven' oil reserves.
Qatar quits OPEC to boost its liquefied natural gas production
Qatar joined OPEC in 1961 and has been its 11th biggest producer, putting out 600,000 barrels of crude oil a day.