Oil ends week down on uncertainty over OPEC cuts

By Ethan Lou NEW YORK (Reuters) - Oil prices settled below $50 on Friday to mark their biggest weekly loss in six weeks, on concerns OPEC will not fully carry out a planned output cut, even as data showed U.S. oil drillers removed rigs from production for the first time since June. Oil services company Baker Hughes Inc said two rigs were cut this week, ending a 17-week recovery in the number supplying the market.