Oil prices may soar again on Tuesday after long holiday weekend, and two terrorists? attacks on Saudi Arabia.
Analysts don?t fear that U.S. crude prices will overstep resent peak of $41.85 a barrel, but, probably, the attack in the oil hub of Khobar can remind people that global oil supply might suffer a great deficit.
We remind, the Islamic militants killed five foreign workers at a Saudi petrochemical plant in the Red Sea town Yanbu at the beginning of May, and saboteurs have twice targeted oil infrastructure around Iraq's key crude export terminal at Basra.
Khobar, where 22 civilians were killed in the latest attack, has no production, export or refining facilities but western oil firms have offices and housing in the city 400 kilometres northeast of Riyadh.
Before the holidays, London Brent closed on Friday 35 cents up at $36.60 a barrel, U.S. light crude ended 49 cents higher at 39.93.