Top Lease for well that is deemed no longer commercially viable

I have been contacted with an offer to top lease on a property that is currently leased, but production has been extremely low for the last couple of years. The offer is for a 10% down while they try to prove that the existing producer should have to re-lease the property before drilling any additional wells since their production in recent years has been “not commercially viable.” Terms seem pretty attractive, but I am skeptical. Any advice or experiences much appreciated.