BNSF, the railroad owned by Warren Buffett's Berkshire Hathaway, should profit by switching to cheaper natural gas. Buffett's company also has a big stake in natural gas.
Buffett releases his annual letter to shareholders. He adds up the total percentage change the value of Berkshire Hathaway stock since he started running the company in 1964. You won't believe the number.
Multibillion-dollar deals involving Dell, American Airlines and Heinz may portend another boom in giant mergers and buyouts. But historians warn most mergers go bust.