Internal documents from Shell disclosed in a UK court case have revealed an estimated $10.9 billion decommissioning liability linked to the company's operations in Nigeria.

The records, which surfaced during ongoing litigation, detail significant infrastructure decay, including ageing pipelines and missing oil wells, raising fresh questions about the environmental and financial legacy of decades of oil production in the region.

9 billion figure represents a substantial contingent liability that could impact future capital allocation and dividend policy if not already fully provisioned.

The disclosure intensifies scrutiny on Shell's asset management and environmental compliance in West Africa.

For investors, the $10.9 billion figure represents a substantial contingent liability that could impact future capital allocation and dividend policy if not already fully provisioned.

The documents suggest that the physical state of the infrastructure is worse than previously disclosed, potentially exposing the company to further regulatory penalties and cleanup costs.

This development adds to a series of legal and financial challenges for Shell in Nigeria.