There are large amounts of methane and carbon dioxide dissolved in the deep waters of lake Kivu - if disturbed they could cause a catastrophe.
Expect millions – not billions – of barrels.
The region's reserves are in very deep water and won't be tapped into any time soon.
OPEC has been declared dead in recent months as the group of oil-exporters has been unable to agree on a plan to stabilize the market. But was it really ever alive in the first place?
When you pick apart the strange economics of global energy markets, it becomes clear how the incredible power of Riyadh can take other countries to the brink.
Oil and gas exploration could transform economies and improve lives in Africa, but this is not happening. People living in rural areas are the most excluded from the benefits.
As the ice recedes and technology for recovering resources in extreme conditions improves, the Arctic could become the theatre for future global conflicts. Here's the story so far.