Wall Street Journal | Oil Prices Slip as US-Iran Nuclear Talks Continue Past Deadline Wall Street Journal LONDON—U.S. oil prices fell on Wednesday as investors tracked the Iranian nuclear talks and a buildup in U.S. oil supplies. On the New York Mercantile Exchange, light, sweet crude futures for delivery in May recently traded at $47.23 a barrel, down 0 ... Iran's oil What Iran nuclear talks mean for oil prices (+video) This could push oil prices higher: Strategist |