Joel Greenblatt acquired 115 Thousand Occidental Petroleum shares worth $4.75 Million. That's 0.05% of their equity portfolio (491st largest holding). The first Occidental Petroleum trade was made in Q2 2012. Since then Joel Greenblatt bought shares seventeen more times and sold shares on sixteen occasions. The stake costed the investor $4.32 Million, netting the investor a gain of 9.9% so far.