Brent crude hit $100 a barrel on Thursday for the first time since May, driven by intensifying geopolitical tensions in the Middle East that have revived concerns over global energy supplies.The benchmark rose more than 6% following several consecutive days of gains, as the United States ramped up military strikes against Iran. Prices surged further after Houthi militants in Yemen attacked oil tankers in the Red Sea—a vital route that Saudi Arabia has used to bypass the Strait of Hormuz for its...