We have an NPRI in 20 acres in Reeves based on a reserved interest found in a 1928 deed when the property was sold, the reserved interest is 1/32nd. Division Orders have been signed and heirs are receiving monthly royalty payments. There is no “lease” signed by the heirs, only DO’s. Its my understanding the 20 acres is part of a 300+/- acre unit. My question, if additional wells are drilled and begin producing within the unit, will the heirs share in those, or is the NPRI only for the 20 acres?