Is Marathon Petroleum Corp. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Marathon Petroleum Corp. moved from very expensive to fair. The company appears to be fairly valued based on its current metrics. Key ratios include a P/E ratio of 26, an EV to EBITDA of 16.80, and a Price to Book Value of 6.53. In comparison, its peer Phillips 66 has a significantly higher P/E ratio of 57.54, indicating that Marathon may be more attractively priced relative to its competitors.
Marathon Petroleum has shown strong performance with a year-to-date return of 32.24%, significantly outpacing the S&P 500's return of 13.30% during the same period. This performance, along with its fair valuation status, suggests that the stock is positioned well within its industry.