News Release

NYMEX Promotes Samuel Gaer to Executive Vice President

Tue Jun 12 2007

New York, NY, June 12, 2007 — The board of directors of NYMEX Holdings, Inc. (NYSE:NMX), parent company of the New York Mercantile Exchange, Inc., announced today that it has promoted Samuel Gaer to NYMEX Executive Vice President. He will also continue to serve as Chief Information Officer, a position he has held since 2003.

Mr. Gaer joined NYMEX in 2003 as Chief Information Officer. During his tenure, NYMEX has introduced more than 300 contracts on the NYMEX ClearPort® electronic clearing and trading platform; opened a full-scale trading floor in Dublin and an exchange in London, where Mr. Gaer served as Chief Executive Officer; launched electronic and side-by-side trading of NYMEX energy and metals contracts on the CME Globex® electronic trading platform; created DME–Direct, the NYMEX ClearPort–based trading platform utilized by the Dubai Mercantile Exchange; and migrated exchange IT systems onto a single, consolidated, and cost efficient hardware and software platform.

Mr. Gaer and the NYMEX technology department have been recognized in CIO Magazine's "CIO 100" list in 2005 and 2007 and as "Best IT Team" by the American Financial Technology Awards.

# # #

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: Anu Ahluwalia , 212-299-2439 or  Keil Decker, 212-299-2209

Corporate Communications

+1 312 930 3434