Is Marathon Petroleum Corp. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Marathon Petroleum Corp. has moved from very expensive to fair. The company appears to be fairly valued at this time. 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, peers such as Phillips 66 have a P/E of 57.54, indicating that Marathon is more attractively priced relative to its competitors.
In terms of performance, Marathon Petroleum's stock has returned 32.24% year-to-date, significantly outperforming the S&P 500's 13.30% return over the same period. This strong performance, alongside its fair valuation, suggests that the company is positioned well within the oil industry.