OPEC daily basket price is down at USD 1.16 to USD 105.53 a barrel on Friday, compared with USD 105.53 the previous day, the cartel said here on Monday. The monthly rate of the OPEC basket price for October is estimated at USD 106.69, for September it reached 108.73 and the current month average is USD 105.53 a barrel, it said. The new OPEC Reference Basket of Crudes (ORB) is made up of the following: 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).