Hackberry Sequestration

The Hackberry Carbon Sequestration Project, developed by Hackberry Carbon Sequestration, LLC, a subsidiary of Sempra Infrastructure, is located in Cameron Parish, Louisiana, near the town of Hackberry. In April 2025, the project received the first-ever Class VI CO₂ storage permit approved by the Louisiana Department of Energy and Natural Resources (LDENR), marking a major regulatory milestone following Louisiana’s assumption of Class VI primacy in 2023. The permitted project area covers approximately 8,112 acres and includes one CO₂ storage well (Hackberry Well No. 001) along with a seismic monitoring program designed to track plume migration and verify long-term containment. The approved well will be drilled to a depth of approximately 10,100 feet, injecting CO₂ into multiple intervals of the Miocene formation between roughly 4,022 and 10,026 feet subsea. The permit authorizes injection of up to 2 million metric tons of CO₂ per year over an estimated 20-year operational life, supporting a cumulative storage capacity of approximately 40 million metric tons. CO₂ for the project is expected to originate primarily from the Cameron LNG facility, positioning Hackberry as a cornerstone project for large-scale industrial decarbonization along the U.S. Gulf Coast.