News Release

NYMEX Sets Open Interest Records on Crude Oil Futures, Brent Crude Oil Complex

Tue Jul 17 2007

NEW YORK, July 17 /PRNewswire-FirstCall/ -- The New York Mercantile Exchange, Inc., a subsidiary of NYMEX Holdings, Inc. (NYSE: NMX), announced today that its crude oil futures contract and Brent crude oil complex contracts reached record open interest levels.

Yesterday, crude oil futures open interest peaked at 1,579,109 contracts, surpassing the previous record of 1,570,706 contracts set on July 13. Open interest of crude oil futures crossed the 1.5 million contract level for the first time on July 5 when open interest reached 1,522,035 and continued to set several records since then.

Open interest in the Brent crude oil complex reached 100,310 contracts, surpassing 92,405 contracts on June 11.

The Brent crude oil complex consists of the Brent bullet swap, Dubai-Brent calendar swap, Brent calendar swap, dated Brent, dated-to-frontline Brent, WTI-Brent bullet swap, and WTI-Brent calendar swap futures contracts.

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 for The New York Mercantile Exchange, Inc.

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

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