An company owns 100,800 gross acres in the Bakken Shale in the form of one

large, contiguous block.

They have a 100% working interest on their acreage.

80% of their acreage is expected to be developed.

Wells are expected to be spaced 660 feet apart with a lateral length of 2 miles.

40 wells have already been drilled on the property.

How many remaining wells net does the company have to drill?

Remember there are 640 acres in a square mile.