In the latest trading session, Marathon Petroleum’s shares declined by 2.58%, contrasting with a modest uptick in the broader energy sector indices. This drop marked the third consecutive session of underperformance for the company, which has now lagged its peer group by approximately 5% over the past two weeks. Trading volume was 12% above its 30-day average, suggesting heightened investor interest in repositioning ahead of the industry’s upcoming second-quarter earnings season.