Greetings again.
I’m not sure if this is a mistake, but my intuition suggests that the work of the extractor was planned differently.
When the green resource level indicator drops to zero, the extractor stops working. But the resources are not really exhausted. I lift the extractor and set it in the same place. The indicator is full again and the extractor pumps resources again.
I have not tested how this works in single-user mode, but on a dedicated server that way.
I waited two days for the level bar to go down to zero to shoot this video!