The price of OPEC reference basket consisting of 14 different crudes from member states, stood at US$64.47 a barrel on Friday, compared to $64.17 the previous day, according to OPEC Secretariat calculations, the Emirates news agency WAM reported. OPEC Benchmark Basket comprises the following crudes: Murban (Emirates), Saharan Blend (Algeria), Girassol (Angola), Oriente (Ecuador), Zafiro (Eq. Guinea), Rabi Light (Gabon), Iran Heavy (Iran), Basra Light (Iraq), Kuwait Export (Kuwait), Es Sider (Libya), Bonny Light (Nigeria), Qatar Marine (Qatar), Arab Light (Saudi Arabia), and Merey (Venezuela).