I think you will find that many of the leases the DUC wells remain on are already held by a producing well on the lease. Drilling operations, now that the slump has been felt, should be cheaper, and it is a good time to capitalize on that. With prices down and a glut on the market waiting for more favorable market conditions to complete wells that do not have to be completed may well be a good idea, too. Run the liner, and cap it until the market recovers, or the other wells on the pad deplete enough that the new production won't require any more major surface infrastructure to handle.