Wall Street Journal | Oil Fluctuates Amid Concerns Over US Inventories, Iranian Supply Wall Street Journal LONDON—Oil prices switched between gains and losses on Thursday amid concerns about swelling U.S. inventories and the return of Iranian barrels to the market. By midmorning in Europe, Brent was up 0.3% at $30.40 a barrel on London's ICE Futures ... Oil hovers at 12-year lows as Iran supply looms Brent oil dips below $30 to new 12-year low Oil hit a new 12-year low |