American Stock Exchange to Trade Options on Five Securities NEW YORK, May 3 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Wednesday, May 4, 2005 on the following New York Stock Exchange listed stocks of: * Canadian Pacific Railway Limited (Symbol: CP) * Noranda Inc. (Symbol: NRD) * NS Group, Inc. (Symbol: NSS) * Oil States International, Inc. (Symbol: OIS) * Whiting Petroleum Corporation (Symbol: WLL) Canadian Pacific Railway Limited options will open with strike prices of 30 - 35 - 40 and position limits of 5,000,000 shares. The options will trade on March expiration cycle with initial expirations in May, June, September and December. The specialist will be Susquehanna Investment Group. Canadian Pacific Railway Limited is a Class 1 transcontinental railway, providing freight and intermodal services over a network in Canada and the United States. Noranda Inc. Inc options will open with strike prices of 15 - 17-1/2 - 20 and position limits of 5,000,000 shares. The options will trade on March expiration cycle with initial expirations in May, June, September and December. The specialist will be TANSTAAFL Research & Trading. Noranda Inc. is an international mining and metals company with various mining and metallurgical operations and projects under development in several countries. NS Group, Inc. options will open with strike prices of 20 - 25 - 30 and position limits of 7,500,000 shares. The options will trade on March expiration cycle with initial expirations in May, June, September and December. The specialist will be Jane Street Specialist, LLC. NS Group, Inc. manufactures specialty steel products for the energy industry. The Company manufactures seamless and welded tubular steel products that are used in the drilling, exploration and transmission of oil, natural gas and other fluids. Oil States International, Inc. options will open with strike prices of 17-1/2 - 20 - 22-1/2 and position limits of 5,000,000 shares. The options will trade on March expiration cycle with initial expirations in May, June, September and December. The specialist will be LaBranche Structured Products, LLC. Oil States International, Inc. provides specialty products and services to oil and gas drilling and production companies. The Company supplies connection technology for offshore oil and gas development and production, distributes tubular goods and furnishes hydraulic workover and well control services. Whiting Petroleum Corporation options will open with strike prices of 25 - 30 - 35 and position limits of 7,500,000 shares. The options will trade on March expiration cycle with initial expirations in May, June, September and December. The specialist will be AGS Specialist, LLC. Whiting Petroleum Corporation is involved in oil and natural gas exploration, acquisition and exploration activities. 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: American Stock Exchange CONTACT: Mary Chung of American Stock Exchange, +1-212-306-1641, Web site: http://www.amex.com/

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