News Release

NYMEX Announces Trading Hours for After Hours Contracts Traded on CME Globe®

Thu Jul 27 2006

New York, N.Y., July 27, 2006 — The New York Mercantile Exchange, Inc. today announced the trading hours for the after hours physically delivered energy futures contracts that will migrate from NYMEX ACCESS® to CME Globex, beginning on August 6 for trade date August 7.

The electronic trading hours and trade date for these products will be modified to reflect the trade date change that occurs daily on CME Globex at 5:15 PM New York time. Following the migration, the after hours trading session that will occur between the close of the trading floor and the close of the business day on CME Globex (3:15 PM to 5:15 PM New York time for the energy futures contracts and 2:00 PM to 5:15 PM New York time for the platinum and palladium futures contract) will be considered part of the current trade date. Trading for the next trade date will begin with the reopening of CME Globex at 6:00 PM New York time on Sundays through Thursdays.

All Exchange-defined calendar spreads, strips, and physical-to-physical inter-commodity spreads (RB:CL, HU:CL, HO:CL, HU:HO, HU:RB, RB:HO) will follow the same trading hours as their respective outright products above.

There are currently no changes in the trading times of the COMEX Division products trading on NYMEX ACCESS. Those products will continue to trade under the current trading hours and trade date mechanism on NYMEX ACCESS.

For more information, visit www.nymexoncmeglobex.com.

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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.

Contact: Anu Ahluwalia, NYMEX, 212-299-2439 or  Allan Schoenberg, CME, 312-930-8189

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