Growing interest in Moon resources could cause tension. An international team of scientists has identified a problem with the growing interest in extractable resources on the moon: there aren't enough of them to go around. With no international policies or agreements to decide 'who gets what from where,' scientists believe tensions, overcrowding, and quick exhaustion of resources to be one possible future for moon mining projects. Source 6i.
I wish there was more on mining moon resources needs more replies now so maybe the big picture forms.