First, Europe does not like relying on Russia for natural gas because that gas has to come through Ukrainian pipelines.

FORBES: Instability In Algeria Could Have Serious Energy Implications For Europe

But those sources are unlikely to meet all the extra demand, leaving Britain in a position familiar to many of its neighbours: relying on Russia.

ECONOMIST: Britain's energy crisis

North African oil and gas are especially important to Europe because the only other place with pipelines running into Europe is Russia, and no one likes relying on Russia for energy.

FORBES: The Libyan Crisis: Where Are Oil Prices Going?