Featured Gas OilBiggest oil price surge since 1991 as ‘locked and loaded’, U.S. points finger at Iran for attackBy Abisola THOMPSONSeptember 17, 2019September 17, 2019 by By Abisola THOMPSONSeptember 17, 2019September 17, 201901068 Saudi Arabia that shut 5 per cent of global crude output caused the biggest surge in oil prices since 1991, after U.S. officials blamed Iran