Mont. Code Ann. § 17-3-241

There is a mineral impact account. Money must be deposited in the impact account as provided in 17-3-240. The money in the impact account must be distributed to counties from which the minerals were produced that resulted in the deposit of the mineral royalty revenue in the impact account. Beginning July 1, 2003, the impact account is statutorily appropriated, as provided in 17-7-502.