News Release

NYMEX to Change Margins for RBOB Gasoline, Related Futures Contracts

Thu Jul 26 2007

NEW YORK, N.Y., July 26, 2007 -- The New York Mercantile Exchange, Inc. today announced margin changes for the RBOB gasoline, RBOB financial, RBOB calendar swap, and NYMEX miNYTM RBOB futures contracts, beginning at the close of business tomorrow.

Margins for the first month of the RBOB, RBOB financial, and RBOB calendar swap futures contracts will decrease to $5,000 from $6,000 for clearing members, to $5,500 from $6,600 for members, and to $6,750 from $8,100 for customers. Margins for the second to fifth months will decrease to $4,500 from $5,250 for clearing members, to $4,950 from $5,775 for members, and to $6,075 from $7,088 for customers. Margins for all other months will remain the same.

Margins for the first month of the NYMEX miNY RBOB futures contract will decrease to $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers. Margins for the second to fifth months will decrease to $2,250 from $2,625 for clearing members, to $2,475 from $2,888 for members, and to $3,038 from $3,544 for customers. Margins for all other months will remain unchanged.

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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.

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

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