News Release

NYMEX Announces 2008 Holiday Schedule

Tue Nov 20 2007

NEW YORK, Nov. 20 /PRNewswire-FirstCall/ -- The New York Mercantile Exchange, Inc., a subsidiary of NYMEX Holdings, Inc. (NYSE: NMX), today announced that it plans to be closed for the following holidays in 2008:

  Tuesday, January 1
  New Year's Day
  Electronic trading and NYMEX ClearPort® will not open on December 31 at
  6 PM, these venues will reopen at 6 PM on January 1, 2008 for the next
  day's trade date.

  Monday, January 21
  Martin Luther King Day
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Monday, February 18
  President's Day
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Friday, March 21
  Good Friday
  Electronic trading and NYMEX ClearPort will not open on March 20 at 6 PM;
  these venues will reopen at 6 PM on March 23 for next day's trade date.

  Monday, May 26
  Memorial Day
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Friday, July 4
  Independence Day
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Monday, September 1
  Labor Day
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Thursday, November 27
  Thanksgiving
  Electronic trading and NYMEX ClearPort are unaffected and will run on a
  normal schedule.

  Thursday, December 25
  Christmas
  Electronic trading and NYMEX ClearPort will not open on December 24
  at 6 PM, these venues will reopen at 6 PM on December 25 for the next
  day's trade date.

Please note that there will be an early close on the trading floor and CME Globex on Friday, November 28 (the day after Thanksgiving) and Wednesday, December 24 (Christmas Eve).

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: NYMEX Holdings, Inc.

CONTACT: Anu Ahluwalia, +1-212-299-2439, or Keil Decker,
+1-212-299-2209, both of NYMEX Holdings, Inc.

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

Corporate Communications

+1 312 930 3434
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