What do Michael Steinhardt, Lord Rothchild, Rupert Murdoch, and Howard Jonas have in common? Oil shale and IDT shares, obviously.

IDT Chairman Howard Jonas has presided over an eccentric -- and so far brilliant -- diversification of his telecom company into the oil-shale business. And somehow he's attracted some of the biggest moguls in the world.

IDT shares have rallied 600% since the company got into the oil-shale business, recently announcing plans to spin off subsidiary Genie energy. Read about it here.