An export pipeline in the Niger Delta remained closed after a subsidiary of Royal Dutch Shell said it was responding to a release of crude oil. The subsidiary, Shell Petroleum Development Co. of Nigeria Ltd., said a multilateral investigation unit was reviewing what led to the Sunday release from its Trans Ramos oil pipeline in the Niger Delta. Though no estimated spill volume was released, by the company, 95 percent of it was already recovered from two impacted communities in the region. Amnesty International has expressed frustration over the legacy of oil spills in the Niger Delta region. The rights group said the Shell and Italian energy company Eni combined reported more than 550 spills […]