Oil prices slip as persistent fuel glut returns to focus

By Sabina Zawadzki LONDON (Reuters) - Oil prices slipped on Friday as the market refocused on a persistent fuel supply overhang that is not expected to abate unless OPEC and other producers cut their output significantly. U.S. West Texas Intermediate (WTI) crude futures were trading 66 cents lower at $44.00 per barrel. Benchmark crude futures contracts have in the past week wiped out the gains made since the end of September when the Organization of the Petroleum Exporting Countries said it woul