News Release

NYMEX to Introduce NYMEX iPORTTM Energy Index

Wed Dec 20 2006

NEW YORK, N.Y., December 20, 2006 — The New York Mercantile Exchange, Inc. announced today that it will introduce NYMEX iPort, a suite of energy and metals index futures contracts.

NYMEX iPort products will allow investors to hedge in the NYMEX and COMEX markets using futures indexes. The index products will offer broad sector coverage in a single price and a single trading vehicle.

NYMEX iPort contracts will be available for trading on the NYMEX trading floor and the CME Globex® electronic trading platform and for clearing through NYMEX ClearPort® clearing.

NYMEX President and Chief Executive Officer James E. Newsome said, "NYMEX is pleased to launch this new brand of index portfolio contracts. We believe these contracts will serve as an additional risk management tool for our current customers and as an innovative way to enter the energy markets for new customers."

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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  Mary Haffenberg, CME, 312-930-3435

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