Real and personal property which a county may have acquired through purchase or forfeiture or by operation of law may be demised, leased, or let by the board of county commissioners for the purpose of:
1. Mining thereon; 2. Operating thereon for gas and oil; 3. Laying pipelines thereon; or 4. Establishing and maintaining thereon tanks, power stations, and structures for the production, saving, sale, or caring for the mine product, gas, or oil.