Halliburton (HAL) 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 provider of drilling services to oil and gas operators have returned -5%, compared to the Zacks S&P 500 composite's +4% change. During this period, the Zacks Oil and Gas - Field Services industry, which Halliburton falls in, has lost 4.7%. The key question now is: What could be ...