Bumi Co-founder Nathaniel Rothschild

Bumi Co-founder Nathaniel Rothschild

Jason Alden/Bloomberg

Bumi Plc was founded in 2010 when Nathaniel Rothschild, co-founder of Bumi, and the Bakries bundled stakes in two Indonesian coal companies -- Bumi Resources and PT Berau Coal Energy -- in a $3 billion deal.