MPLX LP (MPLX) 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 company have returned -1.4%, compared to the Zacks S&P 500 composite's +7.3% change. During this period, the Zacks Oil and Gas - Production and Pipelines industry, which MPLX LP falls in, has gained 5.1%. The key question now is: What could be the stock's future direction? Althoug ...