OPEC's reference basket of crudes from 13 countries was $130.87 per barrel on Monday, compared with $126.11 the previous Friday, the oil cartel said on Tuesday according to RIA Novosti.
In use since 1987, the basket is calculated from the crude prices of: Saharan Blend (Algeria), Girassol (Angola), Oriente (Ecuador), Minas (Indonesia), Iran Heavy (Iran), Basra Light (Iraq), Kuwait Export (Kuwait), Es Sider (Libya), Bonny Light (Nigeria), Qatar Marine (Qatar), Arab Light (Saudi Arabia), Murban (UAE) and BCF 17 (Venezuela).