News Release

NYMEX to Change Margins for RBOB Gasoline, Related Futures Contracts

Thu Jun 07 2007

NEW YORK, N.Y., June 7, 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 $6,000 from $7,000 for clearing members, to $6,600 from $7,700 for members, and to $8,100 from $9,450 for customers. Margins for the second to eighth months will decrease to $5,250 from $5,750 for clearing members, to $5,775 from $6,325 for members, and to $7,088 from $7,763 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 $3,000 from $3,500 for clearing members, to $3,300 from $3,850 for members, and to $4,050 from $4,725 for customers. Margins for the second to eighth months will decrease to $2,625 from $2,875 for clearing members, to $2,888 from $3,163 for members, and to $3,544 from $3,881 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.

Contact: Steffanie Marchese, 212-299-2455 or  Keil Decker, 212-299-2209

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