From the late 1950s Royal Dutch Shell built an oil enclave in Nigeria's Niger Delta that drew billions in crude while the Ogoni and neighboring communities got spills, gas flares and poisoned water. In the 1990s Ken Saro-Wiwa led nonviolent protest and was hanged with eight others in 1995, and Delta communities are still pressing Shell in UK courts. Shell's defenses are included.
Shell denies liability and blames much spillage on sabotage and oil theft, while communities blame corrosion and poor maintenance. The extent of Shell's complicity in the military repression was litigated and never admitted, and casualty figures vary.