Gas Storage
Mississippi

Enstor Mississippi Hub and Gas Storage

Mississippi Hub is a high-turn salt cavern storage and transportation hub located south of Jackson, Mississippi and directly connected to Southern Natural Gas (Sonat), Transcontinental Gas Pipeline (Transco) and Southeast Supply Header (SESH).  Mississippi Hub links East Texas and Northern Louisiana supply basins to markets across the Gulf Coast, Mid-Atlantic and Northeast

  • Type: Salt Cavern
  • Working Capacity: 56.3 Bcf
  • Injection: 1,900,000 Mcf/day
  • Withdrawal: 2,400,000 Mcf/day
  • Interconnects: Southern Natural Gas (Sonat), Southeast Supply Header (SESH), Transcontinental Gas Pipeline (Transco)
  • Pipeline Emergency Number:
    (888) 307-7595

Mississippi Hub, LLC - Mississippi Hub Expansion Project

PROJECT UPDATE: March 5, 2024, Mississippi Hub submitted an Abbreviated Application for a Certificate of Public Convenience and Necessity to Federal Energy Regulatory Commission (FERC) to construct, modify, and operate the Mississippi Hub Capacity Expansion Project under Docket No. CP24-80-000. On March 20, 2025, FERC granted Mississippi Hub, LLC the certificate of authorization to construct modify, and operate its natural gas storage and pipeline facilities. 

Enstor has drilled, completed, and started solution mining Cavern Well #4, drilled and completed Saltwater Disposal Well #10 and Raw Water Well #10, refurbished and upgraded the Leaching facility, worked over existing Saltwater Disposal and Raw Water wells, worked over Cavern Well #1 and #2, and have begun increasing the size of these cavern wells. 

The Mississippi Hub facility site is located approximately 7.6 miles southwest of the town of Magee, Mississippi. Mississippi Hub expects to begin construction activities for the expansion project in 2025, after receipt of the required approval from FERC and other Federal, State and Local agencies.

To access information regarding Mississippi Hub’s filings and any FERC documents regarding the proposed Mississippi Hub Expansion Project, visit https://elibrary.ferc.gov/eLibrary/.

  • Under search options, choose “General Search” and enter the range of dates you wish to search, or
  • Select “Docket Search” and enter the Mississippi Hub Docket Number, CP24-80-000, in the “Enter Docket Number” box. 

The Project consists of the following proposed activities:

  • Expansion of the Mississippi Hub Storage Facility in Simpson County, Mississippi.
    • Increasing the size of the existing gas storage Caverns #1 and #2. 
    • Construction of three new gas storage caverns (Caverns #4, #5 and #6).
    • Expansion of the existing Gas Handling Facility. 
    • Expansion of the existing Leaching Facility. 
  • Addition of one meter skid and one filter separator on the existing Southern Natural Gas (“Sonat”) Meter Site in Simpson County, Mississippi. 
  • Addition of one meter skid and one filter separator on the existing Southeast Supply Header (“SESH”) Meter Site in Covington County, Mississippi.
  • Addition of two meter skids, two flow control skids, and one filter separator on the existing Transcontinental Gas Pipeline (“Transco”) Meter Site in Covington County, Mississippi.
  • Construction of four new raw water (“RW”) wells (RW Wells #7, #8, #9 and #10) in Simpson County, Mississippi.
  • Construction of five new saltwater disposal (“SWD”) wells.
    • Two SWD wells (#5 and #7) collocated at the existing RW well #3 SWD well #3 wellpad in Simpson County, Mississippi.
    • One new SWD well (#10) in Simpson County, Mississippi.
    • Two SWD wells (#6 and #8) at the existing RW well #4 and SWD well #4 wellpad in Jefferson Davis County, Mississippi.
  • Construction of a new booster compressor station (“Mississippi Hub Booster Station”) including installation of three new gas turbine driven centrifugal compressors and associated equipment in Covington County, Mississippi.

Project Contact Information: [email protected], 833-454-6742

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Mississippi Hub facility illustration