CNBC | Oil prices steady as US crude stockpiles rise for a sixth week CNBC Oil prices were mixed in volatile trade on Wednesday as strong U.S. demand for fuel helped offset a sixth straight week of crude builds and evidence of rising global supply. U.S. sanctions on Iran set to go into full effect next week and a bounce in ... Oil Rebounds After Inventory Data Crude prices may have cooled, but Iran sanctions a big worry Rise in US crude-oil supplies nearly matches expectations, but marks a sixth weekly climb |