As oil went on its biggest up-move in history, I had some concerns about the handful of energy-related shorts in my portfolio. Turns out, as I hoped, that it wasn’t worth wringing my hands over. Just because the commodity itself (crude oil) roars higher in price doesn’t necessarily mean great news for the companies which seek it or process it. Take Marathon Petroleum, for example, one of my shorts. It's down about 2.5% right now, and I think far lower prices are in store. The symbol is MPC:

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