Mountrail: 5,011,665There are a number of reasons why this might be interesting (or not). One of the biggest reasons was an "after-the-fact" thought. Yesterday, "anonymous" suggested that 3.8% GDP growth in North Dakota was fairly exaggerated in its importance. With regard to oil, it is but a handful of counties driving that growth.
Surface area, square miles:
Mountrail: 1,824Total surface are of those eleven counties: 18,871 square miles.
McKenzie: 2,742 (largest county in ND)
Billings: 1,153 Burke: 1,129
North Dakota's surface area is 70,762 square miles.
The four counties contributing the most oil production (currently) comprise 8,796 square miles in surface area, or about 12 percent of total surface of North Dakota. If all eleven counties are considered, that works out to about 27 percent.
This data is completely meaningless, and perhaps uninteresting, except to me and one other person, who shall remain nameless.