Corporations Closing

In my Enterprise Solemo Inc, I have two of my oil companies with the red x icon which indicates closure. When I tap the corporation's and view the reason behind the closure it says "Natural Resources are running out. Corporation will close soon." I don't know what this means.I have all the materials needed in stock so I don't know what this means and what I should do. Should I move the corporation?

Also another one just closed randomly and the message on the daily newspaper was "The corporation Springdale Gold in Solemo Inc has been closed because corpNewsClosedRemainingQuantity: Message unknown. 227740 employees were fired."
I didn't authorise the closure and the company was not in debt.

The natural resource deposit that your corporation was extracting from has been exhausted, the corporation automatically liquidated because there was no more resource to extract.

Check the changelogs for the new natural resources system implemented in October. Relevant posts start with "W3C"

Also: Buckle up. Markets gonna get bumpy.

This appears to be a bug in the news, hopefully a GM will look at it.

White Giant
Solemo Inc Daily Telegraph, Mar 05, 4250
Enterprise News
Corporation Closed
Springdale Gold has been closed.
Thu Feb 6, 4250 The corporation Springdale Gold in Solemo Inc has been closed because corpNewsClosedRemainingQuantity: Message unknown. 227740 employees were fired.

From the wording it looks like you ran out of resources.

With resources being limited CEO's now have to consider the lifespan of a mining corp before buying it. I think this makes it more interesting.