The price of the 12-crude reference basket of the Organization of Petroleum Exporting Countries (OPEC) dropped by 25 cents on Wednesday to USD 107.52 per barrel (pb), compared to USD 107.77 pb on Tuesday, said the cartel\'\'s bulletin on Thursday. The bulletin pointed out that the average OPEC basket price for 2010 was USD 77.45 pb. The OPEC Reference Basket (ORB), introduced June 2005, is currently made up of Saharan Blend (Algeria), Girassol (Angola), Oriente (Ecuador), 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 Merey (Venezuela). (QNA) MD