News Release

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

Thu May 03 2007

NEW YORK, N.Y., May 3, 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 tomorrow.

Margins for the first month of the Northwest Europe gasoline swap futures contract will increase to $40,000 from $30,000 for clearing members, to $44,000 from $33,000 for members, and to $54,000 from $40,500 for customers. The margins for all other months will increase to $35,000 from $28,000 for clearing members, to $38,500 from $30,800 for members, and to $47,250 from $37,800 for customers.

Margins for the WTI-Brent (ICE) calendar swap futures contract will increase to $1,200 from $1,000 for clearing members, to $1,320 from $1,100 for members, and to $1,620 from $1,350 for customers.

Margins for the European gasoil 0.2 FOB Mediterranean vs. gasoil futures swap contract 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 naphtha crack spread futures contract 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 Singapore gasoil vs. Rotterdam gasoil swap futures contract will increase 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.

Margins for the first to sixth months of the European gasoil (ICE) calendar 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 the seventh to 11th months will decrease to $25,000 from $26,000 for clearing members, to $27,500 from $28,600 for members, and to $33,750 from $35,100 for customers. The margins for all other months will decrease to $20,000 from $22,500 for clearing members, to $22,000 from $24,750 for members, and to $27,000 from $30,375 for customers.

The margins for European gasoil crack spread swap futures contract will decrease to $3,000 from $4,000 for clearing members, to $3,300 from $4,400 for members, and to $4,050 from $5,400 for customers.

The margins for the European Jet CIF Northwest Europe vs. gasoil futures swap contract will decrease to $6,000 from $7,000 for clearing members, to $6,600 from $7,700 for members, and to $8,100 from $9,450 for customers.

Margins for the up-down Gulf Coast ULSD vs. NYMEX heating oil spread swap futures contract will increase to $2,000 from $1,000 for clearing members, to $2,200 from $1,100 for members, and to $2,700 from $1,350 for customers.

Margins for the Gulf Coast jet fuel vs. New York Harbor No. 2 heating oil spread 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 New York Harbor residual fuel oil crack and Singapore naphtha swap futures contracts will decrease to $2,000 from $2,500 for clearing members, to $2,200 from $2,750 for members, and to $2,700 from $3,375 for customers.

Margins for the New York Harbor residual fuel oil 1.0% sulfur 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 Gulf Coast No.2 heating oil crack spread calendar swap futures contract will increase to $2,500 from $2,000 for clearing members, to $2,750 from $2,200 for members, and to $3,375 from $2,700 for customers.

Margins for the Russian export blend crude oil (REBCO) futures contract will decrease to $4,000 from $5,000 for clearing members, to $4,400 from $5,500 for members, and to $5,400 from $6,750 for customers.

Margins for the European Argus gasoline crack spread swap futures contract will increase to $2,500 from $1,800 for clearing members, to $2,750 from $1,980 for members, and to $3,375 from $2,430 for customers.

Margins for the Singapore jet kerosene vs. gasoil spread swap futures contract will increase to $1,400 from $1,200 for clearing members, to $1,540 from $1,320 for members, and to $1,890 from $1,620 for customers.

Margins for the first month of the RBOB crack spread swap futures contract will increase to $3,500 from $3,000 for clearing members, to $3,850 from $3,300 for members, and to $4,725 from $4,050 for customers. The margins for all other months will decrease to $2,000 from $2,500 for clearing members, to $2,200 from $2,750 for members, and to $2,700 from $3,375 for customers.

Margins for the Gulf Coast unleaded 87 gasoline crack spread calendar swap futures contract will increase to $3,500 from $3,000 for clearing members, to $3,850 from $3,300 for members, and to $4,725 from $4,050 for customers.

Margins for the Singapore gasoil calendar swap futures contract will decrease to $4,000 from $4,500 for clearing members, to $4,400 from $4,950 for members, and to $5,400 from $6,075 for customers.

Margins for the Singapore fuel oil 180cst calendar swap futures contract 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.

The margins for the European 1% fuel oil calendar swap (Northwest Europe) futures contracts will decrease to $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.

The margins for the European 1% fuel oil Rotterdam calendar swap futures contracts will decrease to $16,000 from $17,000 for clearing members, to $17,600 from $18,700 for members, and to $21,600 from $22,950 for customers.

Margins for the first month of the European naphtha calendar swap futures contract will decrease to $37,000 from $39,000 for clearing members, to $40,700 from $42,900 for members, and to $49,950 from $52,650 for customers. The margins for all other months will decrease to $25,000 from $39,000 for clearing members, to $27,500 from $42,900 for members, and to $33,750 from $52,650 for customers.

The margins for the European 3.5% fuel oil Mediterranean calendar swap futures contract will decrease to $1,000 from $1,200 for clearing members, to $1,100 from $1,320 for members, and to $1,350 from $1,620 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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