Ind. Code § 32-23-10-1
As used in this chapter, "mineral interest" means the interest that is created by an instrument that transfers, by:
(4) otherwise;
an interest of any kind in coal, oil and gas, and other minerals.
[Pre-2002 Recodification Citation: 32-5-11-2.]
As added by P.L.2-2002, SEC.8.