In the news release, CME Group Announces the Launch of Six Minute-Marker Energy Contracts, issued 05-Jun-2009 by CME Group over PR Newswire, we are advised by the company that the fourth paragraph should read, "The first listed month for the six new 3:15 p.m. New York time Minute-Marker futures contracts will be the July 2009 contract. The three Minute-Marker futures contracts include NYMEX Crude Oil (6C), NYMEX RBOB Gasoline (6R) and NYMEX Heating Oil (6H), which will be listed for up to one month, and the second month will be listed ten business days prior to the expiration of the front month contract. The three Minute-Marker Calendar Month Swap futures contracts include NYMEX Crude Oil (4T), NYMEX RBOB Gasoline (5T) and NYMEX Heating Oil (7T), which will all be listed for up to 36 consecutive months," rather than as originally issued inadvertently. The complete, corrected release follows: CHICAGO, June 5 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse derivatives exchange, today announced the launch of six financially settled Minute-Marker Crude Oil, RBOB Gasoline and Heating Oil futures contracts for trading and clearing services available through CME ClearPort(R), a set of flexible clearing services open to over the counter (OTC) market participants to substantially mitigate counterparty risk and provide capital efficiencies across asset classes, beginning June 14. These new futures contracts will be listed for trading on, and subject to, the rules and regulations of NYMEX. In addition, the NYMEX Crude Oil, RBOB Gasoline and Heating Oil Minute-Marker futures contracts will also be listed for trading on the NYMEX trading floor beginning June 15. The new Minute-Marker futures contracts will be available during normal operating hours through CME ClearPort, from 6:00 p.m. Sunday until 5:15 p.m. Friday New York time, and via open outcry trading from 9:00 a.m. until 2:30 p.m. Monday through Friday. The first listed month for the six new 3:15 p.m. New York time Minute-Marker futures contracts will be the July 2009 contract. The three Minute-Marker futures contracts include NYMEX Crude Oil (6C), NYMEX RBOB Gasoline (6R) and NYMEX Heating Oil (6H), which will be listed for up to one month, and the second month will be listed ten business days prior to the expiration of the front month contract. The three Minute-Marker Calendar Month Swap futures contracts include NYMEX Crude Oil (4T), NYMEX RBOB Gasoline (5T) and NYMEX Heating Oil (7T), which will all be listed for up to 36 consecutive months. For more information, please visit http://www.cmegroup.com/clearport. CME Group (http://www.cmegroup.com/) is the world's largest and most diverse derivatives exchange. Building on the heritage of CME, CBOT and NYMEX, CME Group serves the risk management needs of customers around the globe. As an international marketplace, CME Group brings buyers and sellers together on the CME Globex electronic trading platform and on trading floors in Chicago and New York. By acting as the buyer to every seller and the seller to every buyer, CME Clearing virtually eliminates counterparty credit risk. CME Clearing also offers financial safeguards to help mitigate systemic risk, providing the security and confidence market participants need to operate, invest and grow. CME Group offers the widest range of benchmark products available across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, energy, agricultural commodities, metals, and alternative investment products such as weather and real estate. CME Group is listed on NASDAQ under the symbol "CME." The Globe logo, CME, Chicago Mercantile Exchange, CME Group, Globex, E-mini and CME ClearPort are trademarks of Chicago Mercantile Exchange Inc. CBOT and Chicago Board of Trade are trademarks of the Board of Trade of the City of Chicago. NYMEX and New York Mercantile Exchange are trademarks of New York Mercantile Exchange, Inc. COMEX is a trademark of Commodity Exchange, Inc. All other trademarks are the property of their respective owners. Further information about CME Group and its products can be found at http://www.cmegroup.com/. CME-G DATASOURCE: CME Group CONTACT: Media, Mary Haffenberg, +1-312-930-3435, or Allan Schoenberg, +1-312-930-8189, both at , or Investors, John Peschier, +1-312-930-8491, all of CME Group Web Site: http://www.cme.com/

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