Billionaire Warren Buffetts Berkshire Hathaway Corp. (NYSE:BRK.A)(NYSE:BRK.B) and its subsidiaries boosted their stake in red-hot Occidental Petroleum (NYSE:OXY) by another $1.5B billion over the pas… [+2042 chars]
Buffett’s Berkshire Hathaway buys $1.5B more Occidental stock week after $3B purchase – Seeking Alpha