Billionaire Buffett buys Exxon stake

American billionaire Warren Buffett’s firm has bought a $3.45billion (£2.1bn) stake in oil and gas giant ExxonMobil according to reports. ExxonMobil’s shares rose when news broke that Berkshire Hathaway had taken the multi-billion dollar punt at the end of last week. In the third quarter of 2013, Exxon earned $7.9billion (£4.9bn), a drop of 18% […]