...when Marathon Oil decided in 2002 to expand its natural-gas operations to Bioko..., company managers focused their attention on the region's crippling malaria rate. Marathon concluded that protecting only its employees and contractors wouldn't be enough. Because mosquitoes will bite anybody and Marathon expects the island facility to be productive for 40 years or more, the company...is working with its business partner Noble Energy, nonprofit organizations and the Equatoguinean government to stop transmission of the disease on the island within five years... Just as important was technology transfer: Marathon officials wanted to be certain that the people of Equatorial Guinea would eventually be able to run the project entirely on their own. [also refers to initiative by BHP Billiton]