Bangladesh is not a member country of

Organization of the Petroleum Exporting Countries is an intergovernmental organization of 13 petroleum-exporting nations, founded in 1960 by the first five members, and headquartered since 1965 in Vienna, Austria. The 13 countries account for 40 percent of global oil production and 73 percent of the world's "proven" oil reserves, making OPEC a major influence on global oil prices.