Bloomberg | Oil Set for Biggest Weekly Gain in 2017 as OPEC Eyes Extension Bloomberg Oil headed for its biggest weekly increase this year amid speculation OPEC will extend its deal to curb output and ease a global glut. Futures are up 4.5 percent in New York this week, climbing back above $50 a barrel after Kuwait Oil Minister Issam ... Oil retreats, set to become worst-performing asset in first quarter US oil prices fight to keep a slippery grip on $50 a barrel Oil advances as Kuwait sees consensus for extended output cuts |