Analysts with ING financial group outlined four possible avenues for Iran: full escalation that also draws in other nations such as China or Russia; disruption of the Strait of Hormuz; active or passive support for terrorist attacks in the U.S. and Europe; or taking no action at all.

Oil prices oscillated on Monday, touching a five-month high before erasing most gains as oil and gas transit continued on tankers from the Middle East after U.S. airstrikes against Iran at the weekend.