When the relinquishment or agency right herein granted has been forfeited, the land shall be subject to lease for oil and gas under the procedure provided by law for the leasing of unsold surveyed public school lands. The substantive provisions of Subchapter B of this chapter and Subchapters D and E, Chapter 32, of this code shall apply to the oil and gas lease. No oil and gas lease shall be executed which provides for a royalty of less than one-eighth, payable to the state for the benefit of the permanent free school fund. The owner of the soil shall not be entitled to any revenue generated by a lease executed pursuant to this section. Upon the termination or expiration of a lease so executed by the Commissioner of the General Land Office, the rights of the surface owner to act under this law shall be ipso facto reinstated.