News Release

NYMEX Sets Daily Volume Record for Total Natural Gas Futures Contracts, Natural Gas Futures on CME Globex®

Fri Jul 18 2008

NEW YORK, July 18 /PRNewswire-FirstCall/ -- The New York Mercantile Exchange, Inc., a subsidiary of NYMEX Holdings, Inc. (NYSE: NMX), set daily volume records yesterday for total natural gas futures contracts traded via electronic and open outcry trading and natural gas futures contracts traded on the CME Globex electronic trading platform.

Total natural gas futures, via electronic and open outcry trading, reached 327,942 contracts, surpassing the 270,987 contracts traded on June 19.

Natural gas futures on CME Globex traded 293,656 contracts, topping the 238,140 contracts traded on June 19.

NYMEX launched its physically settled futures contracts for trading on CME Globex during regular open outcry trading hours on September 5, 2006, following its initial offering of financially settled, standard-sized and NYMEX miNY energy futures contracts for trading on CME Globex on June 12, 2006. On December 4, 2006, NYMEX introduced full-sized and COMEX miNY metals futures contracts for side by side trading. Options trading launched on CME Globex on June 25.

Access to electronic trading of NYMEX energy and metals products is available virtually 24 hours a day on CME Globex.

  For more information, go to http://www.nymexoncmeglobex.com/.

  Forward Looking and Cautionary Statements

This press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to our future performance, operating results, strategy, and other future events. Such statements generally include words such as could, can, anticipate, believe, expect, seek, pursue, and similar words and terms, in connection with any discussion of future results. Forward-looking statements involve a number of assumptions, risks, and uncertainties, any of which may cause actual results to differ materially from the anticipated, estimated, or projected results referenced in forward-looking statements. In particular, the forward-looking statements of NYMEX Holdings, Inc., and its subsidiaries are subject to the following risks and uncertainties: the success and timing of new futures contracts and products; changes in political, economic, or industry conditions; the unfavorable resolution of material legal proceedings; the impact and timing of technological changes and the adequacy of intellectual property protection; the impact of legislative and regulatory actions, including without limitation, actions by the Commodity Futures Trading Commission; and terrorist activities and international hostilities, which may affect the general economy as well as oil and other commodity markets. We assume no obligation to update or supplement our forward-looking statements.

SOURCE: NYMEX Holdings, Inc.

CONTACT: Anu Ahluwalia of NYMEX, +1-212-299-2439; or Allan Schoenberg of
CME Group, +1-312-930-8189

Web site: http://www.nymex.com/
http://www.nymexoncmeglobex.com/

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