In pictures: Fighting for Nigeria's oil

Mr Dokubu-Asari admits to stealing oil.

But he claims that the oil belongs to the Delta people in the first place.

He says his followers easily take oil from the pipelines, because some of them used to work with oil companies.

He says they siphon off, "as much as they can".

Some of it, he claims, they refine locally, and then sell to villagers at a subsidised price.