News Release

NYMEX to Launch Eight New Electricity Contracts on NYMEX ClearPort®

Wed Feb 27 2008

NEW YORK, Feb. 27 /PRNewswire-FirstCall/ -- The New York Mercantile Exchange, Inc., a subsidiary of NYMEX Holdings, Inc. (NYSE: NMX), today announced that it will introduce eight new cash-settled electricity futures contracts for the Texas market on March 9 for trade date March 10.

The monthly and daily contracts will provide risk management for the day-ahead market in the Electric Reliability Council of Texas (ERCOT) and will settle based on ERCOT Broker Indices published by SNL Energy.

The new electricity futures contracts and their commodity codes are: NYMEX ERCOT broker seller's choice index peak (SNL Energy) (ZE); NYMEX ERCOT broker seller's choice index calendar day peak (SNL Energy) (VB); NYMEX ERCOT Houston index peak (SNL Energy) (ZH); NYMEX ERCOT Houston index calendar day peak (SNL Energy) (VH); NYMEX ERCOT Broker North Index Peak (SNL Energy) (ZF); NYMEX ERCOT Broker North Index calendar day peak (SNL Energy) (VF); NYMEX ERCOT Broker South Index Peak (SNL Energy) (ZT); and NYMEX ERCOT Broker South Index calendar day peak (SNL Energy) (VJ).

The futures contracts will be available for trading and clearing on NYMEX ClearPort. The first monthly contracts will be April 2008 and the daily contracts will be March 10. All of the ERCOT monthly contracts will be listed for 36 consecutive months with the exception of the NYMEX ERCOT broker seller's choice index peak futures contract which will be listed through November 2008. The contracts will be 800 megawatt hours (MWh) in size with a minimum price fluctuation of $0.01/MWh.

Information on fees can be found on the NYMEX website, http://www.nymex.com/.

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.

SOURCE: The New York Mercantile Exchange, Inc.

CONTACT: Anu Ahluwalia, +1-212-299-2439, or Keil Decker,
+1-212-299-2209, both of The New York Mercantile Exchange, Inc.

Web site: http://www.nymex.com/

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