Some of it is being exported as gasoline and diesel. Or as the Fuel Fix article 3 days ago stated: exporting a tidal wave of gasoline and other fuels.
Since we import far more crude oil than we export refined products, I would say we are importing extra to refine and sell the higher priced products.
We are far from a net exporter, but we do use the little surplus refining capacity that we have. It keeps more jobs in the US and helps the trade balance.