News Release

NYMEX to Change Margins for Petroleum Products Futures Contracts on NYMEX ClearPort®

Wed Oct 11 2006

New York, N.Y., October 11, 2006 — The New York Mercantile Exchange, Inc. today announced margin changes for some of its petroleum products futures contracts on NYMEX ClearPort®, beginning at the close of business tomorrow.

Margins for the first month of the Northwest Europe gasoline swap futures contract will decrease to $35,000 from $40,000 for clearing members, to $38,500 from $44,000 for members, and to $47,250 from $54,000 for customers. The margins for all other months will decrease to $30,000 from $39,000 for clearing members, to $33,000 from $42,900 for members, and to $40,500 from $52,650 for customers.

Margins for the European ULSD 50PPM CIF Mediterranean vs. gasoil futures contract will decrease to $15,000 from $17,000 for clearing members, to $16,500 from $18,700 for members, and to $20,250 from $22,950 for customers.

The margins for the European ULSD 50PPM CIF Northwest Europe swap futures contract will decrease to $35,000 from $36,000 for clearing members, to $38,500 from $39,600 for members, and to $47,250 from $48,600 for customers.

Margins for the European gasoil 10PPM Rotterdam Barges vs. gasoil futures contract will increase to $5,000 from $2,750 for clearing members, to $5,500 from $3,025 for members, and to $6,750 from $3,713 for customers.

The margins for the first month of the East-West fuel oil spread swap futures contract will decrease to $7,000 from $8,000 for clearing members, to $7,700 from $8,800 for members, and to $9,450 from $10,800 for customers. Margins for all other months will remain unchanged.

The margins for the European ULSD 50PPM CIF Northwest Europe vs. gasoil swap futures contract will decrease to $8,000 from $10,000 for clearing members, to $8,800 from $11,000 for members, and to $10,800 from $13,500 for customers.

Margins for the high-low sulfur fuel oil spread swap futures contract will decrease to $5,000 from $8,000 for clearing members, to $5,500 from $8,800 for members, and to $6,750 from $10,800 for customers.

The margins for the Dated-to-Frontline Brent swap futures contract will increase to $400 from $200 for clearing members, to $440 from $220 for members, and to $540 from $270 for customers.

Margins for the Singapore gasoil vs. Rotterdam gasoil swap futures contract will decrease to $2,000 from $3,000 for clearing members, to $2,200 from $3,300 for members, and to $2,700 from $4,050 for customers.

The margins for the Gulf Coast gasoline calendar swap futures contract will decrease to $5,000 from $6,000 for clearing members, to $5,500 from $6,600 for members, and to $6,750 from $8,100 for customers.

Margins for the first month of the European gasoil (ICE) calendar swap futures contract will decrease to $35,000 from $37,000 for clearing members, to $38,500 from $40,700 for members, and to $47,250 from $49,950 for customers. The margins for the second through sixth months will decrease to $33,000 from $35,000 for clearing members, to $36,300 from $38,500 for members, and to $44,550 from $47,250 for customers. Margins for the seventh through 11th months will decrease to $26,000 from $28,200 for clearing members, to $28,600 from $31,020 for members, and to $35,100 from $38,070 for customers. The margins for all other months will decrease to $22,500 from $24,500 for clearing members, to $24,750 from $26,950 for members, and to $30,375 from $33,075 for customers.

Margins for the Gulf Coast jet fuel vs. New York Harbor No. 2 heating oil spread swap futures contract will increase to $1,800 from $1,500 for clearing members, to $1,980 from $1,650 for members, and to $2,430 from $2,025 for customers.

The margins for the New York Harbor residual fuel crack swap futures contract will increase $2,000 from $1,725 for clearing members, to $2,200 from $1,898 for members, and to $2,700 from $2,329 for customers.

Margins for the Los Angeles jet fuel vs. New York Harbor No. 2 heating oil spread swap futures contract will increase to $900 from $600 for clearing members, to $990 from $660 for members, and to $1,215 from $810 for customers.

The margins for the U S Gulf Coast No. 2 heating oil crack spread calendar swap futures contract will decrease $2,500 from $2,800 for clearing members, to $2,750 from $3,080 for members, and to $3,375 from $3,780 for customers.

Margins for the Singapore jet kerosene vs. gasoil spread swap futures contract will decrease to $1,500 from $2,000 for clearing members, to $1,650 from $2,200 for members, and to $2,025 from $2,700 for customers.

The margins for the RBOB up-down calendar swap futures contract will decrease $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers.

Margins for the WTI-Brent crude oil spread calendar swap and Singapore fuel oil spread swap futures contracts will increase to $3,000 from $1,000 for clearing members, to $3,300 from $1,100 for members, and to $4,050 from $1,350 for customers.

The margins for the European 1% fuel oil Rotterdam calendar swap futures contract will decrease $14,000 from $15,000 for clearing members, to $15,400 from $16,500 for members, and to $18,900 from $20,250 for customers.

Margins for the unleaded 87 gasoline up-down spread calendar swap futures contract will decrease to $1,800 from $2,000 for clearing members, to $1,980 from $2,200 for members, and to $2,430 from $2,700 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: Brenda Guzman, 212-299-2436

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