News Release

NYMEX Clarified Procedures for Unanticipated Market Closures

Fri Feb 16 2007

New York, N.Y., February 16, 2007 — New York Mercantile Exchange, Inc., today clarified its policies for unanticipated closures of the trading floors, specifically all days which are not approved holidays when a decision is made to close floor trading.

In the event of an unanticipated trading floor closure, NYMEX will announce electronic trading hours for its products on the CME Globex® and NYMEX ClearPort® electronic platforms.

Settlement prices will be determined for all futures markets available for electronic trading on CME Globex. These settlement prices will be derived from values available from trading on CME Globex and otherwise in accordance with existing settlement rules, at a time period consistent with settlements for existing floor hours or another time period determined and announced by NYMEX.

All NYMEX ClearPort markets will be settled using information gathered by NYMEX as per its normal procedures. All options markets will be settled utilizing the settlement prices in underlying futures contracts cited above, loaded into the NYMEX-approved model which will have relevant data (including volatilities, skews, pivots), carried over from the preceding business day.

The 2007 NYMEX holiday schedule is available at www.nymex.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 , 212-299-2439

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