77-6-207. Form of lease -- bond optional. The general form of lease to state lands shall be prescribed by the board, and no changes in the form for these leases may be made without the approval of the board. All leases shall be issued in duplicate, one copy shall be mailed to the lessee, and one copy shall be preserved by the department. Unless the board decides otherwise, these leases shall be issued without bonds, but the board may require a bond and prescribe the form and conditions thereof whenever it considers it necessary.