Oil prices soared  Monday after the drone attacks  oil plants in Saudi Arabia. Prices saw their biggest rise  a decade. At one point, prices shot  by nearly 20 per cent. This is the biggest one-day rise  the 1990-91 Gulf War. Saudi Arabia's Energy Minister Prince Abdulaziz bin Salman said the drone attack  Saudi Arabia's Abqaiq oil plant cut the kingdom's oil production  half. The attacks will cut the world's daily oil production by five per cent. The Bloomberg news agency said it could take weeks  Saudi to repair the damage. During this time, people could see higher gasoline prices  the pumps, especially in Asia. People may also have to pay higher prices  food and other goods.
Yemen's Houthi group has claimed responsibility  the attacks in Saudi Arabia. The group said the attacks were because  Saudi Arabia's attacks  rebel groups in Yemen. Iran's President Hassan Rouhani supported the Houthi claim. He called the attack an act  self defense. He said: "Yemeni people are exercising their legitimate right  defense. The attack was a reciprocal response to years of Saudi aggression  Yemen." However, an Arab coalition says there is evidence that the weapons used to strike the Saudi oil plants were made  Iran. U.S. officials say satellite images suggest the attacks came  either Iraq or Iran and not Yemen. Iranian officials called the U.S. allegations "maximum lies".