Devon Energy Production Company, L.P. v. Thomas Harris, in his official capacity as Secretary of the Louisiana Department of Natural Resources

Louisiana Court of Appeal·Decided October 22, 2025·No. 2025 CW 0201·Unknown

Opinion

NOT DESIGNATED FOR PUBLICATION STATE OF LOUISIANA

COURT OF APPEAL

FIRST CIRCUIT

2025 CW 0201

DEVON ENERGY PRODUCTION COMPANY, L.P.

l VERSUS

LOUISIANA DEPARTMENT OF NATURAL RESOURCES AND THOMAS HARRIS, IN HIS OFFICIAL CAPACITY AS SECRETARY OF THE LOUISIANA DEPARTMENT OF NATURAL RESOURCES

OCT 2 2 2025

Judgment Rendered:

Appealed from the

19th Judicial District Court In and for the Parish of East Baton Rouge State of Louisiana

Docket No. C727086, Section 31

The Honorable Tiffany Foxworth- Roberts, Judge Presiding

Liz Murrill Counsel for Defendant/Appellant

Attorney General State of Louisiana through the David A. Peterson Department of Energy and Natural Jennifer Wise Moroux Resources'

Assistant Attorneys General Baton Rouge, Louisiana

and

Blake Canfield

Morgan D. Rogers

Baton Rouge, Louisiana

Esteban Herrera, Jr. Counsel for Plaintiff/Appellee Victor J. Suane, Jr. Devon Energy Production Andre Bellefontaine Company, L.P.

Baton Rouge, Louisiana

1 Although Thomas Harris was named separately as a defendant in his official capacity as Secretary of the Louisiana Department of Natural Resources, he was referenced in conjunction with the Louisiana Department of Natural Resources in the initial petition filed by Devon Energy Production Company, L.P. In the judgment being appealed, the trial court notes that Tyler Gray is the secretary of what is now named the Louisiana Department of Energy and Natural Resources (" LDENR"). Regardless, neither Thomas Harris nor Tyler Gray are parties to this appeal.

Donald T. Carmouche Counsel for Amicus Curiae Victor L. Marcello The Parish of Cameron John H. Carmouche William R. Coenen, III Brian T. Carmouche Todd J. Wimberley Ross J. Donnes D. Adele Owen Leah C. Poole Caroline H. Martin Christopher D. Martin Michael L. Heaton Baton Rouge, Louisiana

BEFORE: McCLENDON, C.J., THERIOT, AND STROMBERG, JJ.

N

THERIOT, J.

The Louisiana Department of Energy and Natural Resources (" LDENR"), appeals the 19th Judicial District Court' s (" 19th JDC") September 30, 2024 Ruling

of the Court. For the following reasons, we convert the appeal to an application for supervisory writs, grant the writ application, vacate the September 30, 2024 Ruling of the Court, and remand this case to the 19" JDC for further proceedings in

accordance with this judgment. We further grant LDENR' s April 7, 2025 motion

to supplement the record.

Devon Energy Production Company, L.P. (" Devon"), through multiple

predecessors, conducted oil and gas operations and obtained Coastal Use Permits CUPs") at various times between 1974 and 2002 in three oil fields att issue in this

matter: Mallard Bay, Crab Lake, and Deep Lake. These oil fields and all

associated CUPs are located in Cameron Parish, Louisiana.

Cameron Parish Lawsuits

In 2016, Cameron Parish filed eleven lawsuits (" Cameron Parish Lawsuits")

in the 38' Judicial District Court against current and former oil and gas exploration

operators in Cameron Parish, including three lawsuits2 against Devon and other defendants regarding coastal land loss and related CUPs. Cameron Parish alleged

that land loss is markedly higher at Mallard Bay, Crab Lake, and Deep Lake because Devon and other defendants engaged in activities that violated their CUPS

2 On January 25, 2024, LDENR filed its combined findings of fact and conclusions of law, listing the following relevant lawsuits:

1) Parish of Cameron v. Alpine Exploration Companies Inc., et al, Suit No. 10-

19580 ( relating to Mallard Bay);

2) Parish of Cameron v. Anadarko E& P Onshore, LLC, et al, Suit No. 10- 19578 relating to Crab Lake);

3) Parish of Cameron v. Burlington Resources Oil & Gas Co., L.P., et al, Suit No. 10- 19575 ( relating to Deep Lake).

or the State and Local Coastal Resources Management Act, located at La. R.S. 214. 21, et seq. (" SLCRMA"). LDENR and the Louisiana Attorney General A.G.") subsequently intervened as plaintiffs in the Cameron Parish Lawsuits.

Devon' s Letters to LDENR Requesting Declaratory Rulin s

While the Cameron Parish Lawsuits were ongoing, Devon sent three letters to LDENR regarding its past operations in the three fields at issue. In these letters dated July 30, 2019, November 13, 2019, and January 14, 2020 — Devon

requested that LDENR issue declaratory rulings that Louisiana' s Rules and Procedures for CUPs did not apply to any activity conducted by Devon and/ or its predecessors in Mallard Bay Field, Crab Lake Field, and Deep Lake Field.' In the

alternative, Devon requested that LDENR ( 1) identify with specificity the violations of the CUPS, statutes, or regulations that LDENR alleges Devon to have

committed in each field, and ( 2) provide a compliance schedule that particularly

identifies the actions that Devon must take to come into compliance with those

permits, statutes, or regulations within a reasonable time.

LDENR did not respond to Devon' s requests. According to LDENR, it chose to intervene in the lawsuits instead because " it was more efficient than

instituting potentially thousands of administrative actions for enforcement in these cases." LDENR considers the Cameron Parish Lawsuits to be its enforcement

proceedings regarding Devon' s CUPs in Mallard Bay, Crab Lake, and Deep Lake.

Devon' s Mandamus Action and the 2022 Mandamus Judgment

When LDENR did not respond to Devon' s requests, Devon filed a petition

for writ of mandamus in the 19th JDC on September 2, 2020, seeking an order

requiring LDENR and its secretary, Thomas Harris, to respond to each of those

3 Devon asserts that it sought specific declaratory rulings from LDENR pursuant to LDENR' s regulations and Louisiana' s Administrative Procedure Act. See La. R.S. 49: 950, et seq.

requests.' On August 24, 2022, following an August 10, 2022 hearing on the

which ( 1)

matter, the 19" JDC signed a judgment (" 2022 Mandamus Judgment")

granted Devon' s petition for writ of mandamus; ( 2) made peremptory an

Alternative Writ of Mandamus and Order" issued on September 3, 2020; and ( 3)

issued a writ of mandamus pursuant to La. Code Civ. P. art. 3 86 1, et seq., ordering

and directing LDENR to issue or cause to be issued declaratory rulings or, in the alternative, compliance schedules as sought by Devon in its requests for

declaratory rulings submitted on July 31, 2019, November 13, 2019, and January 14, 2020. 5 LDENR did not appeal the 2022 Mandamus Judgment.

Pursuant to the 2022 Mandamus Judgment, LDENR held a public hearing in Cameron, Louisiana on November 14, 2022, which was followed by a public comment period.

LDENR' s 2022 Declaratory Order On December 15, 2022, LDENR issued a Declaratory Order (" 2022 Declaratory Order") pursuant to the 2022 Mandamus Judgment. In the 2022

Declaratory Order, the Secretary of LDENR summarized Devon' s oil and gas activities in Cameron, as well as the resulting Cameron Parish Lawsuits in which LDENR and the A.G. intervened on the side of Cameron Parish. LDENR asserted

that the records submitted by Devon did not address all of the issues raised by the apparent land loss. LDENR further found that there were little to no records of the

activities of other operators who worked in the fields at issue, rendering it impossible to allocate responsibility among the various potentially responsible parties. LDENR concluded that it could not " exonerate Devon from responsibility or quantify its relative responsibility, if any" and further could not " determine

4 Devon' s September 2, 2020 petition for writ of mandamus was allotted to Judge Wilson E. Fields, Suit No. 699, 354, Division 25.

5 The 19th JDC ordered LDENR to issue its rulings and/ or compliance schedules on or before December 14, 2022.

effective compliance schedules." As a result, LDENR declared its intent to seek

resolution of those issues in the pending Cameron Parish Lawsuits.

Devon' s Petition for Judicial Review of the 2022 Declaratory Order and the February 15, 2024 Judgment On December 27, 2022, Devon filed a petition for judicial review of the

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