Bloomberg | Oil Pierces Two-Year High as Saudi Roundup Rattles Markets ... Bloomberg Oil prices have climbed $15 from their nadir this year to breach $57 a barrel on Monday, spurred by a cascade of events that began with widespread arrests ... Saudi Crackdown Doesn't Guarantee Aramco IPO – Or Higher Oil Arrest of Saudi Aramco board member casts fresh doubt over oil giant's listing Stocks dip, oil hits 2-year high after Saudi arrests |