A Dutch appeals court has found Shell culpable for oil pipeline leaks in the Niger Delta

Shell files int'l arbitration against Nigeria over Niger Delta oil spill case

Business Feb 15
Royal Dutch Shell has initiated international arbitration against Nigeria over a dispute regarding an oil spill that took place five decades ago, according to a filing with the World Bank’s dispute settlement body.
Oil spills in the Niger Delta contaminated land and groundwater
Nigerians can sue Shell over Niger Delta oil spills - UK court rules
Politics Feb 12
The UK Supreme Court on Friday allowed a group of 42,500 Nigerian farmers and fishermen to sue Royal Dutch Shell (RDS) in English courts after years of oil spills in the Niger Delta contaminated land and groundwater.
Royal Dutch Shell PLC
Shell is back in court for Nigeria oil spills liability ruling
Business Feb 01
Royal Dutch Shell Plc faces the latest ruling in a long-running legal dispute with Nigerian farmers who say the energy giant is responsible for oil leaks that have polluted their villages.