An undivided 1/4th interest in and to all of the oil, gas, and other minerals in and under the N/2, also described as the NE/4 and E/2 NW/4 and Lots (1) and (2) of Section (30), Township (25) North, Range (20), W.I.M. containing 320.84 acres, more or less (80.21 net mineral acres)