Berezovsky bet £100M in fees on a $5.6B undocumented claim — and lost everything

Berezovsky v Abramovich was London litigation at its most operatic. Boris Berezovsky, the exiled oligarch who fled Russia in 2000 after breaking with Putin, sued Roman Abramovich in the Commercial Court for sums in excess of $5.6 billion. His case: that he and his partner Badri Patarkatsishvili once held hidden interests in the oil company Sibneft and in the aluminium combine RusAl, and that Abramovich intimidated them into selling their Sibneft stake in 2001 for $1.3 billion — a fraction of its true worth — before freezing Berezovsky out of RusAl entirely.

Abramovich's defense was that no such ownership existed, that the $1.3 billion paid in 2001 was a political pay-off for Berezovsky's support and protection — not a share price — and that far from threatening him, he had dealt with Berezovsky's demands for years. Where Berezovsky's case rested on recollections of spoken promises made in Kremlin corridors a decade earlier, the defense produced a paper trail, and the two stories never touched.

Mrs Justice Gloster's judgment ran to hundreds of pages and dissected the evidence witness by witness. Her finding on the claimant became famous: she considered Berezovsky "an unimpressive, and inherently unreliable, witness, who regarded truth as a transitory, flexible concept," and said at times his evidence was "deliberately dishonest." On August 31, 2012 she dismissed the Sibneft and RusAl claims "in their entirety." The court had shown how little survives when an undocumented claim meets a well-documented denial.

The exercise also consumed a fortune. The four-month trial, with QCs stacked on both sides, was expected to leave total legal bills of more than £100 million — money spent to recover nothing. Berezovsky, reportedly in financial distress, had gambled on the claim restoring his fortune; thirteen months after judgment he was found dead at his Berkshire home.

A $5.6B claim dismissed in its entirety; legal fees on both sides were expected to top £100M; Berezovsky recovered nothing

The claim's foundation was a trust alleged by word of mouth about events ten or more years old; contemporaneous documents and witnesses told a different story.

Berezovsky's own testimony collapsed under cross-examination — findings of deliberate dishonesty poisoned every independent strand of his case.

He litigated from a position of financial weakness, making the suit a winner-take-most bet; losing meant fees, no damages, and a destroyed reputation.

The scale of the production — four months of trial, elite barristers on retainer for years — made the wager itself a nine-figure commitment before anyone proved a single fact.

English courts will hear old oral promises, but a verbal 1990s understanding against contemporaneous paperwork is near-unwinnable — and a spectacular trial can cost more than the deal it revisits.

Gloster J dismissed all claims on August 31, 2012, and costs follow the event: the Guardian reported the combined legal bills were expected to top £100 million — among the most expensive cases fought in London courts. In March 2013 Berezovsky was found dead at his Berkshire home, an inquest hearing the post-mortem was consistent with hanging. Abramovich walked away with the court's blessing and a judgment that stands as London's standard citation for why undocumented post-Soviet claims fail — and why the Commercial Court is a venue only for those who can afford to lose.