Joel Greenblatt acquired 109 Thousand Occidental Petroleum shares worth $7.35 Million. That's 0.13% of their equity portfolio (183rd largest holding). The first Occidental Petroleum trade was made in Q2 2012. Since then Joel Greenblatt bought shares fifteen more times and sold shares on fourteen occasions. The stake costed the investor $3.09 Million, netting the investor a gain of 138% so far.