Yahoo News UK | Oil Prices Fall Again As Iran Talks Approach Conclusion Wall Street Journal LONDON—Oil prices extended their slide on Tuesday as investors awaited the outcome of the Iranian nuclear talks, which could pave the way for more Iranian crude flooding the already oversupplied global market. Iran and six global powers set Tuesday as ... Factbox: Sanctions on Iran's oil sector Oil extends losses as deadline for Iran nuclear deal looms Why Saudis Could Let Crude Oil Drop to $25 |