NEW YORK, March 2 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Friday, March 3, 2006 on the following New York Stock Exchange listed stock of: -- Willbros Group, Inc. (Symbol: WG) Willbros Group, Inc. options will open with position limits of 5,000,000 shares. The options will trade on the March expiration cycle. The Specialist will be AGS Specialist, LLC. Willbros Group, Inc. is an independent contractor providing construction, engineering and specialty services to the oil and gas industry, for private industry and government entities worldwide. For more information on 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. 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: Kelsey Hubbard of American Stock Exchange, +1-212-306-1640, Web site: http://www.amex.com/

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