A court in London will decide in coming weeks whether Shell can face trial in the UK over oil spill allegations in Nigeria.
Some legal experts have predicted it could attract more cases against multinationals in Britain.
The High Court is set to judge whether members from two communities in Nigeria’s oil-rich Delta region, can sue the Anglo-Dutch company in British courts.
The communities say Nigerian courts are unfit to hear the case against Shell subsidiary Shell Petroleum Development Company of Nigeria (SPDC).
Shell says the case should be heard in Nigeria, however, claiming the matter is “uniquely a Nigerian problem.”
The company has also denied responsibility for the spills, which it says were due to sabotage and illegal refining.