On CNBC's "Options Action," Tony Zhang of OptionsPlay said around 57,000 contracts were traded in Marathon Petroleum Corp (NYSE:MPC) on Wednesday, which is more than three times its average daily volume.

One bullish trade caught Zhang's attention. A trader bought 13,500 contracts of the October $65 calls for a dollar. The trade breaks even at $66 or around 19.7% above the closing price on Wednesday. The trader paid around 1.8% of the underlying value to set up the trade.