The game doesn't raise an alert when a world mine is depleted. What worse, the mine keeps consuming maintenance after it was depleted. It's hard to notice this event untill you have some shortage of the resource or a proper alert of storages triggered. It would be even harder in case you have multiple mines or other sources of the resource.
The behaiviors I'd like the game to have:
- Raise an alert when a world mine is depleted.
- Set and lock the production level to 0 for the depleted world mine, or just disable it in some form.
- Display a distinguishable icon in the world map for depleted mines.
This is more like a feature request. Many people may move to contracts before their world mines depleted and forget the mines completely, so this event may never happen to some people. But, personally, I enjoy exhausting deposits. I would love to see an alert popped when it happens. Since it's inconsistent with the behaivior of oil pumps and mine control towers, I consider it as a defect.