News Release

NYMEX Announces Margins for the Five New RBOB Gasoline Swap Futures Contracts

Fri Apr 21 2006

NEW YORK, N.Y., April 20, 2006 — The New York Mercantile Exchange, Inc., today announced margins for the RBOB bullet swap, RBOB calendar swap; RBOB up–down calendar swap; RBOB vs. heating oil swap; and RBOB crack spread swap futures contracts, effective at the close of business on April 24.

Margins for the first month of the RBOB bullet swap and RBOB calendar swap futures contracts will be $6,000 for clearing members; $6,600 for members; and $8,100 for customers. The margins for the second through fifth months will be $5,500 for clearing members; $6,050 for members; and $7,425 for customers. Margins on all other months will be $4,500 for clearing members; $4,950 for members; and $6,075 for customers.

The intra–commodity spread margins for the first month through fifth months will be $250 for clearing members; $275 for members; and $338 for customers. Intra–commodity spread margins on all other months will be $200 for clearing members; $220 for members; and $270 for customers.

The margins for the RBOB vs. heating oil swap and RBOB crack spread swap futures contracts will be $2,500 for clearing members; $2,750 for members; and $3,375 for customers.

Intra–commodity spread margins will be $240 for clearing members; $264 for members; and $324 for customers.

Margins for the RBOB up–down calendar swap futures contracts will be $3,000 for clearing members; $3,300 for members; and $4,050 for customers.

Intra–commodity spread margins will be $240 for clearing members; $264 for members; and $324 for customers.

Spot month margins will decline automatically during the pricing month for the RBOB calendar swap, RBOB up–down calendar swap, RBOB vs. heating oil swap, and RBOB crack spread swap futures contracts. The spot month margin will decay by dividing one by the number of business days during the month.

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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: Brenda Guzman , 212-299-2436

Corporate Communications

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