Oil company leasing land with non profitable well

Why is a company so interested in leasing land with a non profit able well. When the well was drilled there was oil. However, it was not making enough to service it. Therefore, it was abandoned I guess. However, I signed a lease for 400.00 an acre 1 year ago for horizontal drilling. On the same quarter. I am getting an offer to buy my minerals every week it is up to 10,500 for 20 acres. Why are the so interested??? The well is just north east of Bison.

It is hard to say not knowing where it is. Need legal.