This article was automatically generated by Dow Jones using technology from Automated Insights.

Shares of Marathon Petroleum Corp. slipped 4.8% to $297.75 on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.5% to 54,349.12 and the S&P 500 Index falling 0.2% to 7,723.55.

Marathon Petroleum Corp. closed 8.9% short of its 52-week high of $326.92, which the company achieved on July 22nd.

The stock underperformed when compared to some of its peers, as ExxonMobil Holdings Corp. fell 1.5% to $151.63, Chevron Corp. fell 2.1% to $186.41, and Valero Energy Corp. fell 2.05% to $302.39.

Trading volume totaled 2.7 million, compared to the 50-day average of 2.3 million.

Data source: Dow Jones Market Data, FactSet