Marathon Petroleum Corporation (MPC) gained 3.91% on Wednesday, October 14, 2026, closing at $476.87. The single-session advance extended a rally that has carried the stock higher by 10.30% over the past seven days.
The 30-day performance paints a more striking picture, with MPC shares up 20.40% over that span. The company's market capitalization stood at $128.85 billion as of the close.
The sustained upward movement across all three measured timeframes — one day, one week, and one month — reflects consistent buying pressure in the stock. Wednesday's session represented one of the more notable single-day contributions to that trend.
Marathon Petroleum operates as one of the largest downstream energy companies in the United States. Its share price and market capitalization figures place it among the more heavily weighted names in the energy sector.
