News Release

NYMEX Announces Accountability Levels, Position Limits for CME Globex® Traded, Financially Settled Energy Contracts

Fri Jun 09 2006

NEW YORK, N.Y., June 9, 2006 — The New York Mercantile Exchange, Inc., announced accountability levels and position limits for financially–settled heating oil and natural gas futures contracts, which will launch on the CME Globex® system on June 11 for the trade date of June 12.

The position accountability levels for the heating oil financial futures contracts will be 7,000 contracts for any single month or all months, aggregated with the physically–delivered heating oil (HO) contract. Expiration position limits are 1,000 contracts.

The position accountability levels for the Henry Hub financial last–day and penultimate financial futures contracts will be 12,000 contracts for any single month or all months, aggregated with the physically–delivered natural gas (NG) contract. Expiration position limits are 1,000 contracts.

The reportable level for the financially-settled heating oil and natural gas futures contracts will be 100 contracts.

Accountability levels and position limits for the financially–settled crude oil (WS) and RBOB gasoline (RT) contracts 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: Brenda Guzman, 212-299-2436

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