The Niger Delta Nembe Creek oil field was discovered in 1973 and produces from the middle Miocene deltaic sandstone-shale in an anticline structural trap at a depth of .Nelson, P.H.H., Role of Reflection Seismic in Development of Nembe Creek Field, Nigeria, 1980, in Giant Oil and Gas Fields of the Decade: 1968–1978, AAPG Memoir 30, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, , pp. 565–576 In June 2013, Shell announced a strategic review of its operations in Nigeria, hinting that assets could be divested. While many international oil companies have operated there for decades, by 2014 most were making moves to divest their interests, citing a range of issues including oil theft. In August 2014, Shell said it was finalising its interests in four Nigerian oil fields.
The Niger Delta Nembe Creek oil field was discovered in 1973 and produces from the middle Miocene deltaic sandstone-shale in an anticline structural trap at a depth of .Nelson, P.H.H., Role of Reflection Seismic in Development of Nembe Creek Field, Nigeria, 1980, in Giant Oil and Gas Fields of the Decade: 1968–1978, AAPG Memoir 30, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists , pp. 565–576 In June 2013, Shell announced a strategic review of its operations in Nigeria, hinting that assets could be divested. While many international oil companies have operated there for decades, by 2014 most were making moves to divest their interests, citing a range of issues including oil theft. In August 2014, Shell said it was finalising its interests in four Nigerian oil fields.