All oil and gas leases executed and delivered prior to the effective date of this act by any such governing body, trustees, directors, or township board, in substantial conformity with the provisions of section 55-211a of the General Statutes of 1949, as amended, shall be deemed to be valid, and shall have the same force and effect as though executed and delivered subsequent to the effective date hereof.
K.S.A. 55-211b