Reuters.com | Oil markets cautious as OPEC cuts are met by rising US output Reuters.com SINGAPORE (Reuters) - Oil markets were treading water early on Tuesday, continuing the cautious trading seen over the last week as bullish factors such as ongoing OPEC-led production cuts and Middle East tensions are countered by rising U.S. output. Don't Back US Shale To Keep Oil Prices Down Oil Settles Near $57 as `Glut, Glut Glut' Gives Way to Tightness Opec raises demand forecast for next year's oil |