EnergySouth has said that Mississippi Hub will provide high deliverability storage services to customers seeking to manage the delivery of natural gas supplies to markets in the southeast and east coast regions of the US.

The company is preparing a filing to seek authority to amend its existing Federal Regulatory Commission (FERC) certificate. The filing will include a 1.5 billion cubic feet (Bcf) expansion of capacity for each permitted cavern at Mississippi Hub and expansion of the pipeline header system to include interconnects with the Transco and SESH pipeline systems.

Mississippi Hub currently holds a FERC certificates for the development and operation of two salt dome caverns with a combined total working gas capacity of 12Bcf and the construction of a pipeline interconnect with Sonat. If approved, the 3Bcf expansion would increase the facility’s permitted capacity to a total of 15Bcf.

Mississippi Hub’s first cavern is expected to be operational by the fourth quarter of 2009, while the company’s second cavern has a planned in-service date of mid 2011.