Oil prices edged lower on Friday, on course for the biggest weekly drop in a month, over doubts that an OPEC-led production cut will restore balance to an oversupplied market.
Front-month Brent futures (LCOc1) were at $52.87 a barrel at 0820 GMT (4:20 a.m. ET), down 12 cents from their last close and set for a 5.4 percent weekly drop, the most since the week of March 10.
Front-month U.S. crude futures (CLc1), which rolled over on Friday, were at $50.61 a barrel, down 10 cents and on course for a 4.8 percent weekly decline, also the most since March 10.
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