The petroleum industry in Mexico makes Mexico the eleventh largest producer of oil in the world and the thirteenth largest in terms of net exports. Mexico has the seventeenth largest oil reserves in the world, and it is the fourth largest oil producer in the Western Hemisphere behind the United States, Canada and Venezuela. Mexico is not a member of the OPEC (the Organization of Petroleum Exporting Countries) or any petroleum production related organizations, but since 1994 it is a member of the North American Free Trade Agreement.