Okla. Stat. tit. 30, § 4-770
All such leases and grants of mineral oil and gas heretofore made and confirmed by the court, in consideration of a royalty, part or portion of the production thereof, are hereby legalized.
R.L. 1910, § 6548; Amended by Laws 1988, HB 1078, c. 329, § 117, eff. December 1, 1988; Renumbered from 58 O.S. § 809 by Laws 1988, HB 1078, c. 329, § 134, eff. December 1, 1988.