News Release

NYMEX to Change Margins for Brent Crude Oil, Related Futures Contracts

Wed Oct 31 2007

NEW YORK, N.Y., October 31, 2007 -- The New York Mercantile Exchange, Inc. today announced margin changes for its Brent crude oil financial, WTI-Brent calendar swap, WTI-Brent (ICE) bullet swap, Brent crude oil last day, Brent (ICE) calendar swap, and Brent-Oman financial spread futures contracts, effective at the close of business tomorrow.

Margins for the first month of the Brent crude oil financial, Brent crude oil last day, and Brent calendar swap futures contracts will increase to $4,750 from $3,000 for clearing members, to $5,225 from $3,300 for members, and to $6,413 from $4,050 for customers. Margins for all other months will increase to $4,000 from $3,000 for clearing members, to $4,400 from $3,300 for members, and to $5,400 from $4,050 for customers. 

Margins for WTI-Brent (ICE) calendar swap and WTI- Brent (ICE) bullet swap futures contracts will increase to $950 from $600 for clearing members, to $1,045 from $660 for members, and to $1,283 from $810 for customers.

Margins for the Brent-Oman financial spread contract will increase to $1,640 from $1,290 for clearing members, to $1,804 from $1,419 for members, and to $2,214 form $1,742 for customers. 

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

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