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Warren Buffett, CEO of Berkshire Hathaway.
Johannes Eisele/AFP/Getty Images
Berkshire Hathaway
owns a 9.8% stake in
Occidental Petroleum
worth $5.1 billion after furious buying activity in shares of the big energy company this past week.
Berkshire Hathaway (ticker: BRK.A and BRK.A) disclosed late Friday in a form 4 filing with the Securities and Exchange Commission…
