• underground storage

  • Choctaw Hub


    Boardwalk Louisiana Midstream's principal salt dome storage facilities are located approximately fifteen miles south of Baton Rouge at our Choctaw Hub near Plaquemine, Louisiana. We have over 21 million barrels of available storage capacity across six active caverns at the Choctaw Hub, and additional caverns are currently being utilized for brine production and will be available for hydrocarbon storage upon completion of leaching activities.  We currently offer storage services for ethylene, ethane, ethane-propane (E/P) mix and natural gas at the Choctaw Hub, and we have the ability to modify the existing product storage configuration to meet market demand. 


    Our primary storage services at the Choctaw Hub include:


    • Ethylene Storage:  With 1.2 billion pounds of ethylene storage capacity and product dehydration units capable of drying approximately 250,000 pounds per hour, the Choctaw Hub is critical, not only for the Mississippi River Corridor, but also for the entire U.S. Gulf Coast ethylene market. Our connectivity with nearly all of the major ethylene pipeline systems in Louisiana positions our Choctaw Hub as one of the region’s premier exchange points for ethylene producers and consumers.

    • Feedstock Storage:  Boardwalk Louisiana Midstream currently has two wells in E/P storage and two wells in ethane service at the Choctaw Hub. The ethane wells provide connectivity to a third party feedstock pipeline that starts in Mont Belvieu, Texas and ends along the Mississippi River Corridor, providing supply to a region that historically has experienced ethane shortages. Our ethane storage assets help local consumers mitigate supply risk through their storage positions. Collectively, these ethane and E/P wells provide important feedstock supply capabilities for most of the major olefin producers in Louisiana. Further, Choctaw Hub offers a substantial amount of capacity available for future storage of other feedstocks and liquefied petroleum gas products  



    Sulphur Hub   


    At our Sulphur Hub near Lake Charles, Louisiana, we own and operate three active storage caverns, which are currently in ethylene, ethane and propane service. We are developing two additional caverns to provide service to the industry growth in the area.


    • Ethylene Storage: Our ethylene caverns have a total capacity of nearly 600,000 barrels and are connected to local ethylene consumers.


    • Ethane Storage:  Our ethane cavern has a total capacity of more than 1,000,000 barrels. The ethane storage cavern serves local ethane consumers and is connected to a third-party pipeline that transports ethane from Texas to the Mississippi River corridor. 


    • Propane Storage:  Our propane storage, with approximately 500,000 barrels of existing capacity, provides storage service to propane producers and consumers in the Lake Charles petrochemical market.


    Beyond the existing storage infrastructure, Boardwalk Louisiana Midstream is developing two new storage caverns at the Sulphur Hub. Driven by the rapidly growing petrochemical industry in the Lake Charles area, we have drilled and are currently leaching one new ethylene well and one new ethane well at the Sulphur Hub. Once completed, the two wells will provide an additional 8,000,000 barrels of storage capacity.