All such leases shall provide for delivery to the state in the pipeline to which the lessee may connect the wells of a royalty of not less than one–eighth of the oil and gas produced, saved, and marketed from the leased lands, or the equivalent proportion of the market value of such oil and gas in the field at the time of production; provided, however, that no royalties shall be payable upon oil or gas used in operations on the land for the development and production of oil or gas therefrom.

All such leases shall provide for the payment of a reasonable annual rental, as fixed by the rules and regulations of the commissioner of school and public lands, but in no event to be less than ten cents per acre per annum.

Source: SL 1931, ch 203, § 2 (6); SL 1937, ch 213, § 1; SDC 1939, §§ 15.0509, 15.0510; SL 1941, ch 53, § 1; SL 1976, ch 57.