Applicability of Code to existing rights

La. Rev. Stat. § 31:214, under Mineral Code.

La. Rev. Stat. § 31:214

§214. Applicability of Code to existing rights The provisions of this Code shall apply to all mineral rights, including those existing on the effective date hereof; but no provision may be applied to divest already vested rights or to impair the obligation of contracts. Acts 1974, No. 50, §214, eff. Jan. 1, 1975.