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Berkshire Hathaway CEO Warren Buffett.
Saul Loeb/AFP via Getty Images
Berkshire Hathaway continued its aggressive purchases of the shares of Occidental Petroleum this week, lifting its stake in the big energy company to $6.9 billion, according to a filing Friday evening.
The buying reflects the enthusiasm of
Berkshire Hathaway
(ticker: BRK/A, BRK/B) CEO Warren Buffett for