Warren Buffett must really love oil. Berkshire boosts Occidental Petroleum stake
By Paul R. La Monica, CNN Business Warren Buffett’s Berkshire Hathaway is betting that the oil boom isn’t going to end any time soon. Berkshire Hathaway disclosed in a regulatory filing late Wednesday that it spent about $529 million to buy nearly 9.6 million shares of Occidental Petroleum in the past week. Berkshire Hathaway made
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