Occidental Petroleum Corporation (NYSE:OXY) shares are trading lower on the heels of a buyout of oil and gas producer CrownRock, L.P. The company opened Friday at $58.55 a share, down 1.40%. In December, the company inked a deal to acquire CrownRock for cash and stock in a transaction valued at about $12 billion, including assumption of debt. “By completing this transaction, Occidental adds assets that we believe make the best portfolio in our company’s history even stronger and more differentiated,” CEO Vicki Hollub said. “We also welcome new team members who ...