Iran War: Mercuria v. Baltic Exchange — English High Court Proceedings Test Whether TD3C Benchmark Remains Valid During Strait of Hormuz Closure

A significant commercial litigation has been filed in the English High Court that may define how index-linked contracts respond to geopolitical disruption of benchmark routes. Mercuria Energy Trading S.A. sued Baltic Exchange Information Services Limited, claiming that the TD3C benchmark — which tracks freight rates for Very Large Crude Carriers transporting crude oil from the Gulf to China — no longer reliably represents the underlying market during the Strait of Hormuz closure, and that Baltic Exchange breached its contractual or statutory duties by failing to suspend it. Mercuria's claimed losses run to hundreds of millions of US dollars; Baltic Exchange denied the claim in full. An expedited hearing is scheduled for 26 October 2026. For partners advising in shipping, energy, and commodity trading: the legal question being tested extends far beyond this specific dispute. If Mercuria succeeds, it establishes that a benchmark operator has affirmative duties to suspend or modify a benchmark when the underlying route is rendered non-representative by conflict or sanctions disruption — and any commodity or freight contract benchmarked to TD3C (or a comparable index) could generate copycat claims. If Baltic Exchange succeeds, it confirms that benchmarks can remain formally assessable even when they diverge materially from underlying market reality in stressed conditions. Either outcome reshapes the force majeure and benchmark-failure analysis for contracts whose pricing mechanisms depend on geopolitical chokepoints.