SAN DIEGO, Feb. 12, 2007 – Sempra Pipelines & Storage, a unit of Sempra Energy (NYSE: SRE), and ProLiance Transportation and Storage, LLC, the asset development and ownership affiliate of ProLiance Energy, LLC, today launched an open season to solicit market interest in expansion capacity at their Liberty Gas Storage LLC natural gas storage facility in Calcasieu Parish, La.

        Because of the growing need for storage service in the U.S. Gulf region and the strong market response to the existing 17 billion cubic feet (Bcf) of capacity, Liberty Gas Storage is offering an additional 5 Bcf at the salt-dome storage facility. 

        Liberty Gas Storage is seeking non-binding bid proposals from interested customers for contract terms three years and longer with service beginning in April 2009.  Bids will be received until March 2, 2007.  For more information, interested parties can visit www.libertygasstorage.com or contact Laura Ann Hutchison at (619) 696 2524 or Carlos Mauer at (619) 696 1878.

        ProLiance Energy is a natural gas marketer headquartered in Indianapolis,  with sales offices in Illinois, Kentucky, Michigan, Missouri, Ohio, and Texas.  The ProLiance family of companies serve natural gas customers in 18 states in the Midwest and Southeast.   ProLiance Energy is jointly owned by affiliates of Citizens Gas and Coke Utility and Vectren Corporation. 

        Sempra Pipelines & Storage acquires, builds and operates natural gas pipelines and storage facilities in Mexico and the United States.  The company and its affiliates operate and/or own 500 miles of high-pressure natural gas pipelines in northern Mexico and the United States, and are in the process of constructing additional pipelines.  The company is a partner in the Rockies Express Pipeline, which will stretch more than 1,600 miles from Colorado to Ohio.   Sempra Pipelines & Storage also manages natural gas and electricity distribution systems in Mexico and South America.

        Sempra Energy is a San Diego-based Fortune 500 energy services holding company with 2005 revenues of $11.7 billion.  The Sempra Energy companies’ 14,000 employees serve more than 29 million consumers in the United States, Europe, Canada, Mexico, South America and Asia.

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Sempra LNG and Sempra Pipelines & Storage are not the same companies as the utilities, SDG&E or SoCalGas, and are not regulated by the California Public Utilities Commission.  Sempra Energy Trading, doing business as Sempra Commodities, and Sempra Generation are not the same companies as the utilities, SDG&E or SoCalGas, and the California Public Utilities Commission does not regulate the terms of their products and services.