A few more attacks like this would be bad publicity for the potential IPO of ARAMCO.
That IPO might never happen anyhow. Vastly overvalued in the early iterations.
And the IPO is hardly the biggest concern if a few drones can knock out a refinery that can handle 7% of ALL the world’s production. This is a whole new scary capability.
If it’s that easy to make things go boom using drones there are plenty of similar targets here in the US and the only defense is Law Enforcement and the NSA.