Marathon Petroleum is trading at $407.30, down -4.14%, as crude oil fell sharply.
- It underperformed while broader U.S. stocks rallied on September 21, 2026; the energy sector declined 2.02%.
- Oil prices fell 5.41% to $94.87; recent coverage remains broadly constructive, citing tight fuel supplies and bullish analyst targets, with no new company-specific negative announcement identified.
- The move likely reflects profit-taking and sensitivity to falling crude prices after substantial recent gains.