Brent crude rose nearly 8% to around $90.75 a barrel following joint US-Saudi strikes against Iran-backed groups in Iraq and confirmed Iranian attacks on US facilities in Jordan, vessels in the Strait of Hormuz, a US-owned tanker at Egypt's Damietta port, and an Egyptian natural gas terminal. ExxonMobil and Chevron shares increased. A Barron's report of a 7% jump attributed to escalating airstrikes is disputed by Al-Monitor sourcing.