Oil slips as more U.S. drilling revives glut concerns

By Jessica Resnick-Ault NEW YORK (Reuters) - Oil prices fell on Monday as news of another weekly increase in U.S. drilling activity had oil forecasters concerned that production cuts from other producing nations may not reduce the global supply glut as much as had been hoped. Global benchmark Brent crude oil prices settled down 29 cents at $55.23 a barrel, while U.S. crude futures settled down 54 cents at $52.63. The number of active U.S. oil rigs rose last week to the highest level since Novemb