May 18, 2006

RICHMOND, Va. – Dominion Transmission, a unit of Dominion (NYSE: D), announced Friday that it plans to hold an open season for the Dominion Hub Project, which would receive new natural gas supplies expected from the western United States, store them, and deliver the natural gas throughout the Northeast and Mid-Atlantic states.

Dominion will be conducting a transportation non-binding open season beginning May 23 and ending June 27, 2006, with a targeted in-service date of November 2009. In addition, the open season will solicit interest in 18 million dekatherms of storage capacity with 300,000 dekatherms per day of deliverability.

"Producers and end-users alike will benefit from the flexibility and dependability of Dominion's hub-like pipeline system," said Paul Koonce, Dominion Energy chief executive officer. "Dominion’s pipeline system is interconnected with multiple pipelines systems and provides access to growing markets in the Northeast and Mid-Atlantic."

All facilities are subject to the approval of the Federal Energy Regulatory Commission. Rates for the service will be based on market participation and the final facilities design.

For additional information regarding please contact Josh Eakle at (804) 819-2827 or Jeff Keister at (804) 819-2820. Information will also be available on Dominion’s electronic bulletin board at escript.dom.com.

Dominion Transmission operates 7,800 miles of natural gas transmission lines stretching from Ohio through the Northeast and Mid-Atlantic states. It also operates the nation’s largest natural gas storage system with more than 950 billion cubic feet of storage capacity.

Dominion is one of the nation's largest producers of energy, with an energy portfolio of about 28,100 megawatts of generation, about 6.3 trillion cubic feet equivalent of proved natural gas reserves and retail energy customers in nine states. For more information about Dominion, visit the company's Web site at www.dom.com.