Mont. Code Ann. § 70-1-104
In what things property interests may exist
70-1-104 . In what things property interests may exist. There may be ownership of:
(1) all inanimate things which are capable of appropriation or of manual delivery;
(2) all domestic animals;
(3) all obligations;
(4) such products of labor or skill as the composition of an author, the goodwill of a business, trademarks, and signs; and
(5) rights created or granted by statute.