OPEC daily basket price stood at $ 50.59 a barrel Tuesday compared with $ 50.68 the previous day, said the international organization in a statement Wednesday. The average annual rate of the basket was $ 40.76 pb, it added. 
OPEC Reference Basket of Crudes (ORB) is made up of the following: Saharan Blend (Algeria), Iran Heavy (Islamic Republic of Iran), Basra Light (Iraq), Kuwait Export (Kuwait), Es Sider (Libya), Bonny Light (Nigeria), Qatar Marine (Qatar), Arab Light (Saudi Arabia), Murban (UAE), Merey (Venezuela), Girassol (Angola), and Oriente (Ecuador). 

Source: QNA