Oil topped $100 again after a new wave of tanker attacks, overshadowing a record reserve release

A worker fills the tank of a motorcycle at a gas station in Bogota.

Diana Sanchez/AFP/Getty Images

• Oil surged back above $100 after tanker attacks rattled Middle East supply routes.
• Iran war tensions shook markets even after the IEA announced a 400 million barrel reserve release.
• Traders warn disruptions in the Strait of Hormuz could push prices even higher.

Oil has surged back above $100 a barrel after two fuel tankers were attacked in Iraqi waters, escalating tensions in an already fragile oil market.