>>512266511
>refineries are not factories.
>destruction of them does not hurt much.
refinery is full of piping and pressure vessels. One bomb with tungsten shrapnel and it will take you months to locate and patch up any damage which not only drains the efficiency of refining process, it keeps being a ticking bomb in many cases until attended to. For petrostate like yours selling refined products is very important because it's where the money is compared to crude oil.