Yahoo Finance | Oil slips as U.S. drilling recovery weakens deal to cut output Yahoo Finance LONDON (Reuters) - Oil prices fell on Monday as news of another weekly increase in U.S. drilling activity spread concern over rising output just as many of the world's oil producers are trying to comply with a deal to pump less to try to prop up prices. Oil steady but US drilling weakens deal to cut output Fundamentals Be Damned – Oil Price Correction Likely Oil Trades Near $53 as U.S. Drilling Accelerates Amid OPEC Cuts |