News Release

Exchange Sets Two Records for Nymex Division Seat Sales

Wed Aug 17 2005

New York, N.Y., August 17, 2005 -- Two seats on the NYMEX Division of the New York Mercantile Exchange, Inc., sold today for record prices. The first sold for $2,600,000, topping the $2,500,000 sale on June 24. Later in the day, a second seat sold for $2,750,000.

Ownership of a seat on the NYMEX Division also represents a share of common stock in NYMEX Holdings, Inc.

Exchange President James E. Newsome said, "These records are reflective of the unprecedented interest and continued confidence in our markets. It is an exciting time for the Exchange. We have experienced numerous volume records, introduced more than 160 new contracts on NYMEX ClearPort® this year, and continued our global expansion initiatives."

# # #

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.

Corporate Communications

+1 312 930 3434