Enstor Receives FERC Notice to Proceed with Construction for Expansion of Mississippi Hub Natural Gas Storage Facility

Business Wire

09-07-2025

HOUSTON--(BUSINESS WIRE)--Emerald Storage Holdings LLC, the parent company of Enstor Gas, LLC and Mississippi Hub, LLC, today announced that the Federal Energy Regulatory Commission (FERC) has issued a Notice to Proceed with Construction for the Mississippi Hub Expansion Project. Mississippi Hub is a high-deliverability underground natural gas storage facility located on the Bond Salt Dome in Simpson County, Mississippi. The Expansion Project includes three additional storage caverns, each with approximately 10 billion cubic feet (Bcf) of working storage capacity, as well as incremental expansion of the hub's existing caverns.
In total, the Mississippi Hub Expansion Project will add up to 33.5 Bcf of new working gas capacity and up to 0.7 million dekatherms per day (MMDth/day) of new injection capacity. Upon completion of the expansion, Mississippi Hub's total working gas storage capacity is expected to be 56.3 Bcf, approximately 2.5 times the facility's present capacity. The injection capacity will increase to a total of 1.90 MMDth/day and the withdrawal capacity will remain at 2.40 MMDth/day, as previously certificated before the expansion.
Enstor plans to begin construction immediately and anticipates the expansion to be in-service by 2028.
About Enstor
Enstor is one of the largest privately owned natural gas storage companies in the United States. Headquartered in Houston, the company owns and operates six active underground natural gas storage facilities in four states with more than 110 Bcf in working gas capacity. Enstor has approximately 170 miles of transmission pipelines and 39 interconnects to major transmission pipelines. For more information, please visit www.enstorinc.com.
About Mississippi Hub, LLC
Enstor's Mississippi Hub is a FERC-certified high-deliverability underground facility located on the Bond Salt Dome in Simpson County, Mississippi. Mississippi Hub has multiple pipeline interconnections and is ideally located to serve growing demand centers. The facility today has three storage caverns holding up to 22.4 Bcf of working gas. The facility offers close proximity to major interstate pipelines and pipeline expansion projects that access major downstream natural gas markets. It also provides access to major sources of shale gas production, liquefied natural gas exports, as well as traditional gas supplies along the Gulf Coast. For additional details please visit www.enstorinc.com.