Reuters | Oil prices edge up on expectations of tightening supplies Reuters Traders said the gains were due to an expected tightening of physical oil supplies, as major producers like the Organization of the Petroleum Exporting Countries (OPEC) plan to cut crude output from this month in an effort to end a global fuel glut ... US crude settles at two-week low on strong dollar Oil Falls From 18-Month High Amid Dollar Gains, OPEC Doubts Crude Oil Price Forecast: Break From Diagonal May Pressure Key Zone |