Warren Buffett's 10 biggest holdings
MidAmerican Energy
MidAmerican Energy is a part of what Buffett refers to as Berkshire Hathaway's "powerhouse five." These are the five most profitable non-insurance companies in the portfolio and also includes BNSF, Iscar, Lubrizol and Marmon Group.
Note: Berkshire's "powerhouse five" had aggregate earnings of $10.1 billion, about $600 million more than 2011. The Oracle of Omaha had predicted they would earn $10 billion pre-tax in his 2011 annual shareholder letter. (Pictured is David Sokol, chairman of MidAmerican Energy at Berkshire Hathaway's annual meeting in 2010).
Source: Berkshire Hathaway annual shareholder letter
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