News Release

Exchange to Introduce Five New Electricity Contracts

Wed Jan 04 2006

New York, N.Y., January 4, 2006 — The New York Mercantile Exchange, Inc., today announced that will introduce five new electricity futures contracts on NYMEX ClearPort® clearing and trading on January 8 for the trade date of January 9.

The new contracts and their commodity codes are: ISO New England peak daily futures (CE); NYISO A peak daily futures (AN); NYISO G peak daily futures (GN); NYISO J peak daily futures (JN); and Cinergy hub peak daily futures (CC).

The contract days listed will be the peak days remaining in the current month and the following month. The contract units for the peak contracts will be 40 megawatt hours times the number of peak days in the contract month, with a minimum price fluctuation of $0.05 per megawatt hour. Fees will be $0.20 per daily contract.

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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 , 212-299-2439

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