Brent crude rose 61¢ to above $113 on Tuesday as tensions heightened over Iran’s nuclear programme and unrest in Nigeria.

US crude was up 79¢ to $102.10 a barrel, reports Reuters.

The tensions over Iran’s disputed nuclear programme have led to Iran threatening to close the Strait of Hormuz, a critical shipping chokepoint for oil.

Gains were capped, however, by persistent worries about the strength of European economies, hightlighted by weak German data.