In its effort to discredit lawyers holding an allegedly fraudulent $19 billion environmental judgment against it, Chevron Corporation has found an unlikely ally: Burford Capital Ltd., the world’s largest litigation financing company, which in 2010 agreed to invest up to $15 million in the worldwide effort to enforce the mega-judgment.

Burford announced on April 17 that it has disclaimed any interest in enforcing the Ecuadorian judgment.