Nowadays, value investment has become an increasingly important measurement standard. This paper compares enterprises in three different industries to put forward various investment opinions more accurately. In this paper, the quantitative and qualitative research methods are mixed with studying and measuring the stock selection. The paper results are as follows: First, this paper selects stocks based on three factors: the P/E ratio, the EV/ EBITDA ratio, and the Profitability Yield. We recommend CNX MIDSTREAM PARTNERS LP as a good example of investment in horizontal and vertical comparisons with the analysis of these factors. Second, it is considered an important factor that CNX possesses natural environmental advantages and seizes the opportunity of the times in global warming. From the perspective of theoretical contribution, the research of this paper has a certain contribution to the theoretical development of value investment. From the practical point of view, this paper provides a reference for investors' actual investment decisions.