S O P, in the case of Sudan, it has been clearly established that oil is a big part of the problem. There is a lot of conflict about who the beneficiaries of oil revenues should be, and a lot of people are being displaced from their homes so that oil can be drilled for in those locations.

I haven't spent enough time looking into the Nigeria situation to be able to say if oil is connected in the same way, but it won't surprise me if it is. The religious issues are certainly a part of what is causing the violence, but in the case of Sudan, where the conflict is also between Muslims and Christians, oil is at least as much of the problem as religion.