Boardwalk Pipeline Partners Announces Open Season for Capacity to Transport Gas from Fayetteville Shale.

OWENSBORO, Ky. -- Boardwalk Pipeline Partners, LP (NYSE: BWP) announced today that its subsidiary Texas Gas Transmission, LLC ("Texas Gas") is conducting a binding open season for capacity on its previously announced Fayetteville and Greenville Laterals which will transport gas for producers operating in the Fayetteville Shale play in Arkansas. The open season will begin at on January 3, 2007, and close on January 24, 2007.

The Fayetteville Lateral will receive gas from multiple receipt points in the Fayetteville Shale play in central Arkansas and deliver the gas to new and existing markets served by Boardwalk's existing and planned pipelines, as well as to multiple interstate pipeline interconnects on the Greenville Lateral. The ability to access markets on Texas Gas and interconnecting pipelines serving the Midwest, Northeast, the Henry Hub and the Southeast will provide needed optionality to Fayetteville Shale producers. Both laterals are expected to be in service in early 2009, subject to regulatory approvals. Construction of the laterals is supported by a precedent agreement for firm transportation with Southwestern Energy Services Company (SES), a wholly-owned subsidiary of Southwestern Energy Company, a leading developer of the Fayetteville Shale.

The Fayetteville Lateral, consisting of approximately 167 miles of 36 inch pipeline with an initial design capacity of 800,000 MMBtu per day and a maximum capacity of 1.1 Bcf per day, will originate in Conway County, Arkansas and proceed east through the Bald Knob, Arkansas area to an interconnect with Boardwalk's Texas Gas pipeline in Coahoma County, Mississippi. The Greenville Lateral, consisting of approximately 98 miles of pipeline with an initial design capacity of 750,000 MMBtu per day, will originate at Texas Gas's mainline near Greenville, Mississippi and proceed east to the Kosciusko, Mississippi area.

During the open season, Texas Gas is also considering an expansion of its delivery capacity to various pipelines, including, but not limited to, the addition of compression at or near Whitesville, Kentucky, to facilitate deliveries into the Midwestern Gas Transportation pipeline and the addition of compression at or near Eunice, Louisiana, to provide additional deliveries to markets in South Louisiana, including Transcontinental Gas Pipe Line Corporation, Florida Gas Transmission, and the Henry Hub. Such expansions may also include an increase in the size of delivery meters at various pipeline interconnects.

Shippers seeking additional information on the projects or shippers seeking open season materials should contact Kathy Kirk at [phone] or [phone], David Moseley at [phone], David Lytle at [phone], or Bobby Mason at [phone]. Open season information, pro forma Precedent Agreements and maps of the proposed facilities are available on Texas Gas' website at http://www.gasquest.txgt.com.

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and other federal securities laws relating to expectations, plans or prospects for Boardwalk and its subsidiaries, including those relating to whether or not the Company will successfully complete the Fayetteville Lateral and the Greenville Lateral, the cost and timing of any completed projects, the impact of government regulations on the construction and operation of these laterals, the volumes of gas that may be discovered, developed and produced from the Fayetteville Shale and shipped on the Fayetteville Lateral, any future additional expansions of our pipeline systems and the future financial performance of any of these assets. These statements are based upon the current expectations and beliefs of management and are subject to certain risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. These risks and uncertainties include market conditions and other factors beyond the company's control and the risk factors and other cautionary statements discussed in Boardwalk's filings with the U.S. Securities and Exchange Commission.

Boardwalk Pipeline Partners, LP is a master limited partnership engaged through its subsidiaries, Texas Gas Transmission, LLC and Gulf South Pipeline Company, LP, in the interstate transportation and storage of natural gas. Boardwalk's two interstate natural gas pipeline systems have approximately 13,470 miles of pipeline and underground storage fields with aggregate working gas capacity of approximately 146 Bcf.