ENI, the market leader with its ubiquitous Agip brand, is trying, up to a point.

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South Africans regard Sasol--originally the South African Coal, Oil and Gas Corporation--in the same way Brits do BP, Norwegians Statoil and Italians AGIP.

FORBES: Magazine Article

As a function of Italy's search for a reliable source of oil, AGIP, a division of ENI, is now a major global petroleum company.

FORBES: Overcoming Isolation

Chevron, Agip, ExxonMobil are among the other companies operating in the Delta, but Shell is the only company in the region to release regular reports on its operations.

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The joint venture is composed of NNPC (55 percent), Shell (30 percent), Elf (10 percent) and Agip (5 percent) and operates largely onshore on dry land or in the mangrove swamp.

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