Reuters | Oil slips nearly 1 percent on concerns over rising US output Reuters NEW YORK Oil prices fell on Friday despite OPEC pledges to boost compliance with output curbs, on concerns over rising U.S. supplies and as traders begin to pull out crude barrels from pricey storage as physical markets show signs of tightening. US turns into 'oil nation' with record exports, 'eating' OPEC market share Asia opens itself wider: Bizarre oil trades pose menace for OPEC in its prized market Oil production tug of war looms between OPEC and US |