This is how "amazing" the Bakken is for some "small" mom-and-pop mineral owners in the Bakken, who no doubt inherited minerals from their homesteading parents, some of whom bought land from neighboring farms over the years.
I have a reader who tells me, even ten years into the Bakken, upwards of seven siblings are each receiving royalty checks trending toward $50,000 / month.
Let's work this backwards. Assuming the family "kept" all their minerals over the years.
A twenty percent royalty on $1.75 million = $350,000.
At $35/bbl, $1.75 million = 50,000 bbls/month.
At 2,000 bbls/month/well, that would be 25 wells.