Saudi Aramco CEO says contingency plans in place in case of attacks
He said a refinery in Riyadh, which was attacked on Friday and caught fire, began to be brought back on stream within a few hours

The logo of Saudi Aramco is seen at the 20th Middle East Oil & Gas Show and Conference in Manama, Bahrain, March 7, 2017/ Reuters
Saudi Aramco has contingency and emergency response plans in place to deal with any attacks, Chief Executive Amin Nasser said on Sunday.
He said a refinery in Riyadh, which was attacked on Friday and caught fire, began to be brought back on stream within a few hours.