A huge oil spill in 2011 from the Bonga, a floating oil production vessel off the coast of Nigeria owned by Shell, was one of ...

Oil major Shell operates a fleet of giant ships permanently moored over oilfields around the world. The ships receive oil pumped from wells beneath the seabed and transfer it to tankers.

The spill wasn't noticed for more than four hours, and 40,000 barrels of oil spilled into the Atlantic ... “recurring incidents” on other ships, noting “severe corrosion” in a vessel ...

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