text: Oil Ends Below \$50 on Nigerian Cease-Fire  NEW YORK (Reuters) - Oil prices slid from record highs  above \$50 a barrel Wednesday as the U.S. government reported a  surprise increase in crude stocks and rebels in Nigeria's  oil-rich delta region agreed to a preliminary cease-fire with  the government.
inputs: Oil Ends Below \$50 on Nigerian Cease-Fire  NEW YORK (Reuters) - Oil prices slid from record highs  above \$50 a barrel Wednesday as the U.S. government reported a  surprise increase in crude stocks and rebels in Nigeria's  oil-rich delta region agreed to a preliminary cease-fire with  the government.