La. R.S. 31:158

If a person possessing mineral rights under Article 154 or 155 is made a party defendant in any action involving the possession or ownership of the mineral rights by the owner thereof, his possession of the mineral rights ceases on the date on which the action was filed in a court of competent jurisdiction or on the date of service of citation upon the possessor if the action is not filed in a court of competent jurisdiction. If the action is abandoned, voluntarily dismissed, or not prosecuted at the trial, it is considered that possession never ceased.