Marathon Petroleum experienced upward momentum accompanied by significant intraday volatility as broader energy sector tailwinds and tight refined-product supply fundamentals bolstered investor confidence. The primary driver behind the stock’s advance was the continued expansion of global refining crack spreads, particularly across middle distillates such as diesel and jet fuel. Persistent supply disruptions in key international refining hubs, coupled with low fuel inventories, have created a highly favorable operating environment for domestic refiners. Running at high utilization capacity, the company continues to capture premium margins and convert strong product demand into robust free cash flow, reinforcing the bullish case for its…