Oil prices rose on Sunday after the Iran-backed Houthis in Yemen launched cruise missiles and drones at Israel, marking their entry into the war. Brent oil reached $115.73 a barrel when markets reopened, a $3 increase from its Friday high of $112.57. Western Texas Intermediate hit $103.13 a barrel on Sunday. Oil prices have surged since the US and Israel began bombing Iran at the end of February, and Iran retaliated by essentially closing the Strait of Hormuz. About 20% of the world's oil