Louisiana Revised Statutes & Codes

La. Rev. Stat. § 31:2 (2026)

The provisions of this Code are supplementary to those of the Louisiana Civil Code and are applicable specifically to the subject matter of mineral law.  In the event of conflict between the provisions of this Code and those of the Civil Code or other laws the provisions of this Code shall prevail.  If this Code does not expressly or impliedly provide for a particular situation, the Civil Code or other laws are applicable.  

✓ current as of May 2026
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§2.  Relation to Civil Code

The provisions of this Code are supplementary to those of the Louisiana Civil Code and are applicable specifically to the subject matter of mineral law.  In the event of conflict between the provisions of this Code and those of the Civil Code or other laws the provisions of this Code shall prevail.  If this Code does not expressly or impliedly provide for a particular situation, the Civil Code or other laws are applicable.  

Acts 1974, No. 50, §1, eff. Jan. 1, 1975.  

Notes of Decisions
Cited in 50 cases (3 in the last 5 years), 1981–2023 · leading case: MJ Farms, Ltd. v. Exxon Mobil Corp., 998 So. 2d 16 (La. 2008).
MJ Farms, Ltd. v. Exxon Mobil Corp., 998 So. 2d 16 (La. 2008). · cites it 2× “[17] La.Rev.Stat. § 31:2 provides: The provisions of this Code are supplementary to those of the Louisiana Civil Code and are applicable specifically to the subject matter of mineral law.”
Marin v. Exxon Mobil Corp., 48 So. 3d 234 (La. 2010). · cites it 2× “R.S. 31:2 (providing that the provisions of the Mineral Code are supplementary to the Civil Code and when the Mineral Code does not expressly or impliedly provide for a particular situation, the Civil Code or other laws are applicable).”
State v. Louisiana Land & Expl. Co., 110 So. 3d 1038 (La. 2013). · cites it 2× “R.S. 31:2. 9 A mineral lease is a contract, which has the effect of | inlaw for the parties.”
Frank C. Minvielle, L.L.C. v. IMC Global Operations, Inc., 380 F. Supp. 2d 755 (W.D. La. 2004). · cites it 2× “See La.Rev.Stat. Ann. § 31:2; Massie v. Inexco Oil Co.”
Alford v. Chevron U.S.A. Inc., 13 F. Supp. 3d 581 (E.D. La. 2014). · cites it 2× “” La.Rev.Stat. § 31:2. That is, the Civil Code still applies to mineral law cases, so long as its provisions do not conflict with the provisions of the Mineral Code.”
Musser Davis Land Co. v. Union Pac. Resources, 201 F.3d 561 (5th Cir. 2000). · cites it 2× “R.S. § 31:2 (“In the event of conflict between the provisions of this [Mineral] Code and those of the Civil Code or other laws the provisions of this Code shall prevail.”
Regions Bank v. Questar Expl. & Prod. Corp., 184 So. 3d 260 (La. Ct. App. 2016). · cites it 3× “R.S. 31:2. The leases at issue were obtained in 1907.”
Succession of Doll v. Doll, 593 So. 2d 1239 (La. 1992). · cites it 2× “The mineral lease is a mineral right and, consequently, an incorporeal immovable and a real right.”
Terrebonne Sch. Bd. v. Castex Energy, 893 So. 2d 789 (La. 2005). “See LSA-R.S. 31:2 which indicates that the Civil Code or other laws apply if the Mineral Code does not address a matter.”
Frey v. Amoco Prod. Co., 603 So. 2d 166 (La. 1992). “R.S. 31:2, comment. Finally, in responding to the question certified, we have deliberately refrained from distinguishing recoupable payment from nonrecoupable payment.”
Billingsley v. Bach Energy Corp., 588 So. 2d 786 (La. Ct. App. 1991). “The crucial inquiry is whether parol evidence would be admissible, first to determine the parties' intent in using the term "consummated" in the contract and, second, whether the parties implicitly intended that plaintiff would render services in return for the per well location…”
Sketoe v. Exxon Co., USA, 188 F.3d 596 (5th Cir. 1999). · cites it 2× “See La.Rev.Stat. Ann. § 31:2. . See La. Civ.Code Ann.”
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