1 well for approx every 2 acres. If every well brought in, say $100,000 a month and they end up with 15 producing wells that are long lived, that would be 18,000,000 a year. This is why the math is compelling.
So, the total acreage they own is 3000 - 4000 acres? How much of that land is used for mining limestone? How much is used for operations? I'm not so sure of 15 - 20 total wells- probably less, IMO.
I am interested in the total output from the real estate they currently own, both in limestone and natural gas (cubic feet). Also, why did they mention the high quality of the ON Mineral deposit if it wasn't a strategic advantage??? I think there is more to the ON Mineral property than what was disclosed in the PR's. USLM may be adding a new, or better product to the mix with this acquisition.
To give you an idea on the value of Barnett Shale property, check out this 8K filing of HWG- another Barnett Shale play: http://biz.yahoo.com/e/060614/hwg8-k.html I do not know the acreage, or the amount of natural gas reserves that this 60% interest involves, but nonetheless, there is great value in the play.