Sec. 0.4. (a) As used in this chapter, "coal bed methane estate in land" means the aggregate of all rights in land that affect the coal bed methane:
(1) in the land;
(2) on the land;
(3) under the land; or
(4) that may be taken from beneath the surface of the land.
(b) The term includes the following:
(1) The right to produce coal bed methane for commercial use or sale.
(2) The appurtenant right to use the surface overlying the coal bed methane for coal bed methane operations.