American Stock Exchange Lists Common Stock of PRB Gas Transportation, Inc. NEW YORK, April 12 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) today listed common shares of PRB Gas Transportation, Inc., under the symbol "PRB." Located in Denver, CO, PRB Gas Transportation, Inc. owns and operates intrastate natural gas gathering systems that collects gas from the producer's wellhead and delivers it to a transmission line owned by a third party. The company charges the gas producer or shippers a fee for gathering, compressing and dehydrating natural gas. "We are pleased to have PRB Gas Transportation list on the Amex where a growing roster of strong performing energy-related companies choose to list their shares," Amex Equities Group Senior Vice President John McGonegal said. "And we look forward to supporting the company's effort to reach a wider investor audience." "As Chairman and CEO, I want to tell you how pleased we are at PRB Gas Transportation, Inc. to be joining the American Stock Exchange and its family of companies," said Chairman, Chief Executive Officer Robert W. Wright. The specialist in PRB Gas Transportation will be Weiskopf, Silver & Co as its specialist unit. For more information on PRB Gas Transportation, or any Amex- listed company, please visit http://www.amex.com/. The American Stock Exchange(R) (Amex(R)) is the only primary exchange that offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 155 ETFs to date. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. For more information, please visit http://www.amex.com/. DATASOURCE: The American Stock Exchange CONTACT: J.R.Brandstrader of American Stock Exchange, +1-212-306-1440, or Web site: http://www.amex.com/

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