Occidental Petroleum (OXY) is one of the stocks most watched by Zacks.com visitors lately. So, it might be a good idea to review some of the factors that might affect the near-term performance of the stock.Over the past month, shares of this oil and gas exploration and production company have returned +4.3%, compared to the Zacks S&P 500 composite's -1.1% change. During this period, the Zacks Oil and Gas - Integrated - United States industry, which Occidental falls in, has gained 4.9%. The key question now ...