SM Energy (SM) 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 independent oil and gas company have returned -7.2%, compared to the Zacks S&P 500 composite's +4.1% change. During this period, the Zacks Oil and Gas - Exploration and Production - United States industry, which SM Energy falls in, has gained 1.4%. The key question now is: What cou ...