It’s relatively easy to be like Warren Buffett from one point of view: You can invest in a mix of stocks that exactly mirrors the holdings of his Berkshire Hathaway (NYSE:BRK.A, BRK.B) firm by simply investing in its stock. That won’t put you anywhere near his net worth of $112 billion. But it will at least put you on track for steady returns backed by the strength of American business. And that’s the point of Berkshire Hathaway. But where should investors place their capital within that portfolio of stocks under Berkshire Hathaway? After all, there are roughly 50 positions within Berkshire Hathaway stock. Which positions within its holdings represent the potential for exceptional growth? Occidental Petroleum (OXY) Occidental Petroleum’s (NYSE:OXY) first-quarter profits reached a record $4