News Release

Exchange to Change Margins for Gasoline, Heating Oil and Related Futures Contracts

Thu Sep 01 2005

NEW YORK, N.Y., September 1, 2005 — The New York Mercantile Exchange, Inc., today announced margin increases for its gasoline and New York Harbor gasoline calendar swap futures contracts and its heating oil and New York Harbor heating oil calendar swap futures contracts, effective at the close of business tomorrow.

The October 2005 gasoline futures and New York Harbor gasoline calendar swap futures contracts will increase to $10,500 from $8,500 for clearing members; to $11,550 from $9,350 for members; and to $14,175 from $11,475 for customers.

The gasoline futures and New York Harbor gasoline calendar swap futures for all other months contracts will increase to $7,000 from $6,000 for clearing members; to $7,700 from $6,600 for members; and to $9,450 from $8,100 for customers.

Margins on the first month of the heating oil and New York Harbor heating oil swap futures contract will be increased to $7,000 from $5,500 for clearing members, to $7,700 from $6,050 for members, and to $9,450 from $7,425 for customers. Margins on the second to seventh months will be increased to $6,250 from $5,250 for clearing members, to $6,875 from $5,775 for members, and to $8,438 from $7,088 for customers. Margins for all other months 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.

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