Which country is the only country in Asia that used to belong to a group of producers of crude oil export (Organization of Petroleum Exporting Countries) or group o pek (OPEC)
Which country is the only country in Asia that was formerly a member of the country's crude exports. (Organization of Petroleum Exporting Countries) and OPEC (OPEC).
Which country is the only country in Asia countries were members of the crude oil export manufacturers (Organization of Petroleum Exporting Countries) or the OPEC (OPEC)