Reuters | Oil steady after retreating from 2014 highs on dollar strength Reuters NEW YORK (Reuters) - Oil prices climbed above $80 a barrel on Thursday for the first time since November 2014, before retreating on a stronger dollar and climbing U.S. output to end unchanged. What are the factors driving up the price of crude oil? Iran turmoil and Venezuela collapse send oil above $80 a barrel Oil eases after Brent hits $80 on Iran sanctions concern - CNBC.com |