Section 15-36-309 - Certain royalties exemptExempt from taxation are royalties received by:
(1) an Indian tribe with respect to on-reservation oil and gas production pursuant to a lease entered into under the Indian Mineral Leasing Act of 1938, 25 U.S.C. 396a through 396g;(2) the United States as trustee for individual Indians; and(3) the United States, the state of Montana, or a county or municipal government in Montana.En. Sec. 6, Ch. 451, L. 1995.