Nigeria Wins $11 Billion P&ID Fraud Case As Legal Battle Over Costs  Continues

• UK Supreme Court ruling reinforces Nigeria’s position in landmark arbitration dispute, but enforcement and regulatory issues remain unresolved

Nigeria has secured a major legal victory in its long-running dispute with Process & Industrial Developments Limited (P&ID), after UK courts overturned a $11 billion arbitration award linked to a failed gas processing project.

Nigeria succeeded in setting aside the award in October 2023 after a London High Court found that corruption had tainted the contract procurement and arbitration process. The decision marked a turning point in a dispute that had threatened to impose a multibillion-dollar liability on the Nigerian government.

The dispute originated from a 2010 agreement under which P&ID was to build and operate a gas processing facility in Nigeria’s Niger Delta. The contract was intended to run for 20 years but was never performed by either party.

In 2012, P&ID initiated arbitration proceedings, arguing that Nigeria had breached its contractual obligations by failing to supply the gas required for processing. In 2017, the arbitration tribunal awarded the company $6.6 billion in compensation, with interest that subsequently pushed the claim to approximately $11 billion.

Nigeria challenged the award, alleging that the underlying contract had been secured through bribery and that the arbitration proceedings were compromised by corrupt conduct and misleading evidence.

Following a lengthy trial in London, the High Court ruled in September 2023 in Nigeria’s favour, finding that corruption had affected both the procurement of the contract and the arbitration process. The court set aside the awards, removing the immediate threat of the multibillion-dollar payment.

The legal dispute subsequently extended to the costs of the proceedings. In October 2025, the UK Supreme Court ruled that P&ID should pay the relevant costs in sterling rather than Nigerian naira, with the costs order amounting to at least £44.2 million in unassessed costs.

However, the broader aftermath remains significant. Spotlight on Corruption reported in October 2026 that enforcement of the costs order and the outcome of regulatory referrals concerning two London-based lawyers who represented P&ID remained outstanding.

The case has drawn international attention to the risks of corruption in public procurement, weaknesses in arbitration proceedings and the potential financial consequences of disputed commercial contracts involving governments.

For Nigeria, the outcome represents a major victory in protecting public finances. The continuing costs and regulatory issues, however, demonstrate that the legal and institutional consequences of the P&ID dispute have not entirely ended.

The case remains a significant reference point in global debates over commercial arbitration, anti-corruption enforcement and accountability in international business disputes.