News Release

Position Accountability Levels, Position Limits, Margins Announced for New RBOB Gasoline Futures Contracts

Tue Sep 20 2005

NEW YORK, N.Y., September 30, 2005 — The New York Mercantile Exchange, Inc., today announced accountability levels, expiration position limits, and margin rates for the New York Harbor reformulated gasoline blendstock for oxygenate blending (RBOB) futures contract that will begin open outcry trading on October 3.

The position accountability levels for the contract will be 7,000 contracts for any single month or all months, with the exception of a 1,000-contract level for the last three days of the expiring contract. Clearing members must identify to the Exchange customers who hold 150 or more contracts.

Margins for all contract months will be $6,000 for clearing members, $6,600 for members, and $8,100 for customers.

Intra–looking commodity spread margins for the first two months will be $500 for clearing members, $550 for members, and $675 for customers. Intra–looking commodity spread margins for the third through fifth months will be $300 for clearing members, $330 for members, and $405 for customers. Intra–looking commodity spread margins for all other months will be $200 for clearing members, $220 for members, and $270 for customers.

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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.

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