Texas Education Code - EDUC § 49.303. Property Subject to Detachment and Annexation

(a) Only the following property may be detached and annexed under this subchapter:

(b) If a final judgment of a court determines that a mineral interest may not be annexed and detached as provided by this subchapter without an attendant annexation and detachment of the surface estate or any other interest in the same land, the detachment and annexation of a mineral interest under this subchapter includes the surface estate and each other interest in the land covered by the mineral interest.