News Release

NYMEX Announces Margins for the Nine New Natural Gas Delivery Point Pipe Options Contracts

Thu Dec 13 2007

New York, N.Y., December 13, 2007 -- The New York Mercantile Exchange, Inc. today announced margins for its nine new natural gas delivery pipe options contracts that will trade on NYMEX ClearPort® and the NYMEX trading floor, beginning on December 16 for trade date December 17.

Margins for the PG&E Citygate pipe options contract will be $1,200 for clearing members, $1,320 for members, and $1,620 for customers.

The margins for the Alberta, Northern Rockies, Chicago Citygate, Houston Ship Channel, San Juan, SOCAL, and Panhandle pipe options contracts will be $1,100 for clearing members, $1,210 for members, and $1,485 for customers.

Margins for the Transco Zone 6 pipe options contracts will be $1,700 for clearing members, $1,870 for members, and $2,295 for customers.


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: Steffanie Marchese 212-299-2455 or Keil Decker, 212-299-2209

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