News Release

Exchange Announces the Transition of the NYMEX miNY(sm) Futures Contracts to NYMEX ClearPortsm

Mon Oct 17 2005

New York, N.Y., October 17, 2005 -- The New York Mercantile Exchange, Inc., will transition its NYMEX miNYsm crude oil and natural gas futures contracts to NYMEX ClearPortsm from the Chicago Mercantile Exchange CME® Globex® electronic trading system on Sunday, November 20, for trade date November 21.

The NYMEX miNYsm crude oil and natural gas futures contracts will cease trading on the CME® Globex® platform at 2:30 PM on November 18, and will commence trading on the NYMEX ClearPortsmtrading platform on November 20 at 7:00 PM New York time. This will affect the December NYMEX miNYsm natural gas futures contract and the January NYMEX miNYsm crude oil and natural gas futures contracts.

Exchange President James E. Newsome said,"We are pleased to consolidate the NYMEX miNYsm contracts on to the NYMEX ClearPortsm trading platform, offering our customers the ability to manage their market risk from a single electronic venue."

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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.

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