text: Oil Prices Retreat as U.S. Supplies Build  LONDON (Reuters) - Oil prices extended heavy recent losses  on Wednesday as U.S. government data showed crude stocks  building for an eighth straight week ahead of winter.
inputs: Oil Prices Retreat as U.S. Supplies Build  LONDON (Reuters) - Oil prices extended heavy recent losses  on Wednesday as U.S. government data showed crude stocks  building for an eighth straight week ahead of winter.