OPEC said Thursday that the weighted average price of the OPEC basket of eleven crudes declined sharply to 56.54 dollars per barrel Wednesday compared to 58.85 dollars the previous day.

The eleven crudes include Saharan Blend (Algeria), Minas (Indonesia), 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) and BCF 17 (Venezuela).