La. R.S. 17:87.4

That all grants of right-of-ways executed prior to the passage of R.S. 17:87.1 through 17:87.3 by the school boards of the several parishes of the state of Louisiana granting right-of-ways across and through sixteenth sections or parts thereof for all legitimate and necessary purposes including, but not limiting the generality thereof, power and communication lines and pipelines for water, oil, gas and other hydrocarbon substances, shall be and the same are hereby recognized and ratified in accordance with their terms, and the validity thereof is hereby confirmed without further requirement under those Sections.