Energy analysts warn that investors shouldn't be complacent about the risk to oil supplies as the conflict in the Middle East escalates.

Escalating Israel-Iran conflict could disrupt oil trade and shake markets, analysts say.

Already up 15% over the last two weeks, prices for the Brent crude oil international benchmark could soar to its highest level in years if Iran blocks a key oil chokepoint.

Energy analysts warn that investors shouldn't be complacent about the risk to oil supplies as the conflict in the Middle East escalates.

About 20 million barrels of oil a day flow through the Strait of Hormuz, or the equivalent of 20% of global petroleum liquids consumption.