Probable mineral reserves stand total 18 million carats with 17.5 million carats as inferred mineral resources, and 23.5 to 48.5 million carats classified as non-resource exploration upside with an initial 11 year mine life.
Earlier this year, for example, Kosmos Energy, an oil exploration company in Africa that Blackstone partly controls, listed shares in an initial public offering that looks great for Blackstone.