The relative calm in global oil markets, despite tensions in Ukraine, Libya and Iraq, is beginning to unnerve the International Energy Agency, which has detailed how these risks could spark a price change for the commodity.

"Oil prices seem almost eerily calm in the face of mounting geopolitical risks spanning an unusually large swathe of the oil‐producing world," the organization said in its new monthly report published on Tuesday morning, adding that was providing an "uneasy comfort."