Paul Morigi / Stringer / Getty Images Warren Buffett’s Berkshire Hathaway is joining Occidental Petroleum’s bid for Anadarko by providing $10 billion in financing. Occidental’s $38 billion bid for topped a $33 billion takeover proposal by the oil major Chevron. Occidental’s shares dropped 4% early Tuesday. Watch Anadarko Petroleum trade live. Berkshire Hathaway, the investment […]