Will Tullow Oil Be a Victim of its Own Success?

Bloomberg's Ryan Chilcote explains the changes and challenges facing Aidan Heavey, chief executive officer of Tullow Oil.
Mila Kunis Helps Miner Become Top Emerald Producer
14:58 - Gemfields CEO Ian Harebottle discusses the gemstone business with Bloomberg's Pimm Fox on "Taking Stock." (Source: Bloomberg)
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