Bids for the leasing of oil and gas rights in lands designated by the secretary will be considered on the basis of a cash bonus, annual delay rental, and the amount of royalty to be paid shall not be less than 12 1/2 % of the gross proceeds at the prevailing market rate. Leases will be executed on a standard Kansas lease form. No lease shall be for a period to exceed five (5) years and so long thereafter as oil, gas, or other minerals, are being produced therefrom in paying quantities.
Kan. Admin. Regs. § 30-27-3