Reuters | Oil nudges higher on tightening supplies, weak dollar Reuters AMSTERDAM (Reuters) - Oil prices edged higher on Friday, with investors offered some encouragement from data hinting that oversupply was easing steadily and a weaker dollar. But prices were still on track to close the week 2 to 3 percent lower after ... The Oil Glut Rewrites History Oil gets caught up in broad-based sell-off Oil prices end higher after three-session streak of declines |