Oil traded steady on April 21, though it was set for its biggest weekly drop in about a month over doubts that an OPEC-led production cut will restore balance to a market that has been dogged by oversupply for more than two years.
Reuters: Oil prices set for biggest weekly drop in a month
This file photo taken Aug. 19, 2013 shows an oil well site near Tioga, North Dakota. US crude oil prices continued to fall Aug. 24, diving below $40 a barrel to their lowest level since 2009, amid a global market selloff sparked by fears of China's slowdown.
