News Release

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

Thu Apr 05 2007

NEW YORK, N.Y., April 5, 2007 — The New York Mercantile Exchange, Inc. today announced margin changes for some of its petroleum products futures contracts on NYMEX Clearport® effective at the close of business April 9.

Margins for the first month of the Northwest Europe gasoline swap futures contract will decrease to $30,000 from $33,000 for clearing members, to $33,000 from $36,300 for members, and to $40,500 from $44,550 for customers. The margins for all other months will decrease to $28,000 from $30,000 for clearing members, to $30,800 from $33,000 for members, and to $37,800 from $40,500 for customers.

Margins for the Dubai crude oil calendar swap and 3.5% fuel oil Rotterdam crack swap futures contracts will decrease to $3,000 from $3,500 for clearing members, to $3,300 from $3,850 for members, and to $4,050 from $4,725 for customers.

Margins for the European gasoil 0.2 CIF Northwest Europe vs. gasoil swap, RBOB up-down calendar swap, and Singapore fuel oil spread swap futures contracts will decrease to $1,500 from $1,800 for clearing members, to $1,650 from $1,980 for members, and to $2,025 from $2,430 for customers.

Margins for the European gasoil 0.2 FOB Mediterranean vs. gasoil swap futures contract will decrease to $3,500 from $4,000 for clearing members, to $3,850 from $4,400 for members, and to $4,725 from $5,400 for customers.

Margins for the European ULSD 50 PPM CIF Mediterranean swap and European ULSD 50 PPM CIF Northwest Europe swap futures contracts will decrease to $25,000 from $30,000 for clearing members, to $27,500 from $33,000 for members, and to $33,750 from $40,500 for customers.

The margins for the 1% fuel oil Northwest Europe crack spread swap and New York Harbor residual fuel 1% sulfur swap futures contracts will decrease to $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 Singapore gasoil vs. Rotterdam gasoil 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 first month of the European gasoil (ICE) calendar swap futures contract 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. All other months will remain unchanged.

Margins for the first month of the New York Harbor heating oil crack spread calendar swap futures contract will decrease to $2,750 from $3,500 for clearing members, to $3,025 from $3,850 for members, and to $3,713 from $4,725 for customers. The margins for the second to sixth months will decrease to $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 all other months will remain unchanged.

The margins for the first month of the European Jet Rotterdam barges vs. gasoil futures swap futures contract will decrease to $6,500 from $7,000 for clearing members, to $7,150 from $7,700 for members, and to $8,775 from $9,450 for customers. All other months will remain unchanged.

Margins for the Gulf Coast jet fuel vs. New York Harbor No. 2 heating oil spread swap futures contract will increase to $2,000 from $1,800 for clearing members, to $2,200 from $1,980 for members, and to $2,700 from $2,430 for customers.

The margins for the Gulf Coast No. 6 fuel oil crack 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.

Margins for the Los Angeles jet fuel vs. New York Harbor No. 2 heating oil spread swap futures contract will decrease to $1,000 from $1,500 for clearing members, to $1,100 from $1,650 for members, and to $1,350 from $2,025 for customers.

Margins for the European Argus gasoline crack spread swap futures contract will decrease to $1,800 from $2,000 for clearing members, to $1,980 from $2,250 for members, and to $2,430 from $2,700 for customers.

The margins for the RBOB vs. heating oil swap futures contract will increase to $3,000 from $2,000 for clearing members, to $3,300 from $2,200 for members, and to $4,050 from $2,700 for customers.

Margins for the Singapore jet kerosene vs. gasoil spread swap futures contract will decrease to $1,200 from $1,500 for clearing members, to $1,320 from $1,650 for members, and to $1,620 from $2,025 for customers.

The margins for Gulf Coast unleaded 87 gasoline crack spread calendar swap futures contract will increase to $3,000 from $2,500 for clearing members, to $3,300 from $2,750 for members, and to $4,050 from $3,375 for customers.

Margins for the Singapore fuel oil 380cst calendar swap futures contract will increase to $13,000 from $12,000 for clearing members, to $14,300 from $13,200 for members, and to $17,550 from $16,200 for customers.

Margins for the Singapore fuel oil 180cst calendar swap futures contract will decrease to $18,000 from $20,000 for clearing members, to $19,800 from $22,000 for members, and to $24,300 from $27,000 for customers.

The margins for the European 1% fuel oil Rotterdam calendar swap and European 3.5% fuel oil Rotterdam calendar swap futures contracts will decrease to $17,000 from $18,000 for clearing members, to $18,700 from $19,800 for members, and to $22,950 from $24,300 for customers.

Margins for the European 3.5% fuel oil Mediterranean calendar swap 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.

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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 or  Keil Decker, 212-299-2209

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