Shell faces calls to safely decommission old assets before Nigeria exit

LAGOS, (Reuters) - Nigeria needs to ensure that Shell SHEL.L safely dismantles its old infrastructure or pays to remove them from the Niger delta before its exit, says a report on the environmental impact of the activities of multinational companies.

Shell is set to exit from Nigeria's onshore oil and gas operations after agreeing in January to sell the business to a consortium of five mostly local companies for $2.4 billion.

The deal is the latest by an international oil company seeking to divest from Nigeria's troubled onshore oil sector. But the cost of dismantling old assets could leave the country with environmental degradation, says the report by the not for profit Centre for Research on Multinational Corporations (SOMO).

"The big issue is that Shell is leaving onshore Niger delta and leaving behind potentially a massive bill for (clean up)," SOMO's executive director, Audrey Gaughran said.

Shell did not respond to Reuters requests for comment. When it announced the deal in January, it said the Renaissance consortium would take over responsibility for dealing with oil spills in the delta which Shell has long maintained are mostly due to theft of oil and interference with pipelines.

Layi Fatona, vice chairman of ND Western, one of the five companies in the Renaissance consortium, did not comment directly on the issue or how much it had budgeted to clean up, but told Reuters that the grouping will follow the country's legal requirements.

Gbenga Komolafe, head of Nigerian Upstream Petroleum Regulatory Commission, told Reuters that oil majors would need to show compliance with rules on decommissioning among others before they are granted consent to exit.