Opec crude oil output has declined in November to its lowest since January because of disruptions to Nigerian output and reduced supplies from Angola and Libya, a Reuters survey found.
Supply from the 12-member Organisation of the Petroleum Exporting Countries has averaged 31.06m barrels per day (b/d), down from 31.15m b/d in October, the survey of sources at oil companies, Opec officials and analysts found………………………………………..Full Article: Source