Absolute must see slideshow. These oil companies, to my mind, are not interested protecting assets against petty theft. 

theatlantic:

Nigeria: The Cost of Oil

A view of an illegal oil refinery is seen in Ogoniland outside Port Harcourt in Nigeria’s Delta region March 24, 2011. Crude oil thieves — known locally as “bunkerers” — have been a fact of life for years in Africa’s biggest oil and gas industry, puncturing pipelines and costing Nigeria and foreign oil firms millions of dollars in lost revenues each year. [Reuters/Akintunde Akinleye]

See more photographs at In Focus