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Class VI Carbon Sequestration Program
PROGRAM OVERVIEW
Carbon Capture and Storage (CCS) is a three-step process that involves capturing carbon dioxide (CO2) at the source, compressing it for transport, and injecting it deep underground into rock formations. The first step, capturing the CO2, involves separating CO2 from other gases generated by industrial process facilities including fossil fuel-fired power plants, refineries, steel mills, and chemical plants. The next step, CO2 transport, involves compressing the CO2 for transport via pipelines or other methods to a suitable geologic storage site. The last step is to store the CO2 underground by injecting it into rock formations, often at depths of one mile or more.
The temperature and pressure conditions at these depths cause CO2 to exist as a supercritical fluid. This supercritical CO2 occupies significantly less volume than gaseous CO2, allowing for increased amounts to be stored underground.
The storage of supercritical CO2 in deep underground rock formations is conducted through the use of Class VI injection wells. Class VI wells in Louisiana are currently regulated by the Underground Injection Control (UIC) program within the Louisiana Department of Conservation and Energy's Office of Permitting and Compliance. In the context of CCS, the primary purpose of the UIC Section is to administer a regulatory and permitting program to protect underground sources of drinking water from endangerment by the subsurface emplacement of CO2 through deep well injection.
Contact Us
For Public Information:
Phone: 225-342-0510
Email: info@la.govFor Project-Related Information:
Injection and Mining Division
Injection-Mining@la.gov
For forms, mapping standards and guidance documents, visit the "Carbon Sequestration Wells" tab on the Injection & Mining Division Forms Page.
Please note that the public hearings listed below are intended to allow interested parties to submit public comments related to a particular draft permit. C&E staff will respond in writing to all relevant comments after the public comment period ends rather than at the hearing itself. So while the applicant has the option to present a brief statement at the start of the hearing, the hearing does not include a formal presentation or town hall-style Q&A session.
| Well Type | Operator | Parish | Hearing Date | Public Notice |
|---|---|---|---|---|
| Class VI | River Parish Sequestration, LLC | Ascension | 1/29/2026 | Link |
| Class V | ExxonMobil Low Carbon Solutions Onshore | St. Landry | 9/16/2025 | Link |
| Class V | ExxonMobil Low Carbon Solutions Onshore | Iberville | 8/12/2025 | Link |
| Class V | ExxonMobil Low Carbon Solutions Onshore | St. Landry | 8/12/2025 | Link |
| Class VI | Hackberry Carbon Sequestration, LLC | Cameron | 5/5/2025 | Link |
| Class V | ExxonMobil Low Carbon Solutions Onshore | Allen | 4/30/2025 | Link |
| Class V | ExxonMobil Low Carbon Solutions Onshore | Allen | 4/30/2025 | Link |
| Class V | River Parish Sequestration, LLC | Ascension | 1/30/2025 | Link |
| Class V | Aethon Energy Operating, LLC | Vernon | TBD | Link |
| Class V | Aethon Energy Operating, LLC | Sabine | TBD | Link |
| Class V | Onstream CO2, LLC | Cameron | 9/19/2024 | Link |
| Class V | Denbury Carbon Solutions, LLC | St. Helena | 8/8/2024 | Link |
| Class V | ConocoPhillips Company | Cameron | 7/11/2024 | Link |
Memorandum
Memo to Interested Parties for Louisiana Class VI Injection Wells
Modified January 2024
EPA Primacy Decision Federal Register Publication
Federal Register publication: State of Louisiana Underground Injection Control Program; Class VI Primacy
Published January 2024
Primacy Press Release
EPA Grants Louisiana Office of Conservation State Authority Over CO2 Injection and Sequestration
Published December 2023
Federal Register Notice of Extended Public Comment Period
Federal Register notice of the extended public comment period to supplement the proposed State of Louisiana UIC Program; Class VI Program Revision Application
Published August 2023
Federal Register Notice of Public Hearings
Federal Register notice of public hearings held for EPA's proposal to issue a final rule approving Louisiana's application to implement the UIC program for Class VI injection wells located within the State, except on Indian lands. An in-person public hearing was held June 21-23, 2023, and a virtual public hearing was held on June 30, 2023.
Published May 2023
Memorandum of Agreement Addendum 3
Memorandum of Agreement Addendum 3 between the State of Louisiana and the United States Environmental Protection Agency Region 6 for the Class VI UIC Program
Revised March 2023
Full Primacy Application
The State of Louisiana's Final Class VI USEPA Primacy Application including updated Memorandum of Agreement
Revised March 2023
Helpful Links
Comparison of Federal and Louisiana Regulations for Class VI Injection Wells
This comparison is intended only as a general overview of notable differences between EPA and Louisiana rules for Class VI wells and does not include all administrative or procedural differences. This list should not be taken as comprehensive or be used in lieu of application instructions, C&E guidance, LAC 43:XVII.Chapter 36, or other relevant parts of state or federal law.
Revised January 2023
Statewide Order No. 29-N-6
Statewide Order No. 29-N-6 contains the rules and regulations that apply to all owners and operators of proposed and existing Class VI injection wells and projects in the State of Louisiana.
Revised March 2025