The price of OPEC reference basket comprising 14 crudes stood, at $67.20 a barrel, on Thursday, compared to $67.07 the previous day, Emirates' news agency WAM cited OPEC Secretariat calculations' report. OPEC basket is made up of the following member states' crudes: Murban (Emirates), Saharan Blend (Algeria), Girassol (Angola), Oriente (Ecuador), Zafiro (Equatorial 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).