Oil prices took their biggest daily losses in two months as skepticism grew Friday about whether global exporters can strike an effective deal to cut production. Light, sweet crude for January delivery settled down $1.90, or 4%, to $46.06 a barrel on the New York Mercantile Exchange. It was the biggest percentage drop since Sept. 23 and took oil to losses of 30 cents, or 0.6%, for the week, its fourth losing week of the past five. Brent, the global benchmark, fell $1.76, or 3.6%, to $47.24 a barrel. It wasn’t enough to cancel out early-week gains, and Brent finished the week up 38 cents, or 0.8%. Trading has been subdued in recent sessions because of the Thanksgiving holiday in the U.S. In addition, uncertainty about the Organization of the Petroleum Exporting Countries reaching an agreement to cut oil production has kept some investors on the sidelines. Investors have […]