Oil up 1% after attack on Saudi field, but OPEC report caps gains

NEW YORK (Reuters) - Oil prices were up more than 1% on Monday after a weekend attack on a Saudi oil facility by Yemen's Houthi forces and as traders looked for signs that top economies would take measures to counteract a global slowdown. Prices were limited by a downbeat report by the Organization of the Petroleum Exporting Countries (OPEC) that stoked concerns about growth in oil demand.Brent crude , the international benchmark for oil prices, was up 71 cents, or 1.2%, at $59.35 a barrel by..