Oil traders, relax — there’s no reason to fear an increase in crude supply when the world’s largest producers gather in Vienna later this month. That’s the message from Goldman Sachs’ head of global commodity research Jeff Currie, who’ll even go as far as saying that the oil market and world economy could be in a lot of trouble if OPEC and friends don’t raise output. “Everybody is all bearish about the recent announcement of a million barrels per day extra supply, but the market needed it. It not only needs it, it is mandatory. Otherwise you just drive the bus off a cliff,” he said at the S&P Global Platts’ annual crude oil summit in London on Tuesday.via