Forget Oil Prices — This 1 Refining Number Explains Why These Energy Stocks Are On Fire

The energy sector has quietly produced some of 2026’s biggest winners. While much of Wall Street has remained focused on artificial intelligence and technology stocks, oil refiners have delivered returns that rival many of the market’s hottest names. Marathon Petroleum (NYSE:MPC), Valero (NYSE:VLO), and HF Sinclair (NYSE:DINO) have all gained more than 80% this year, ... Forget Oil Prices — This 1 Refining Number Explains Why These Energy Stocks Are On Fire