News Release

NYMEX to Change Margins for RBOB, Related Futures Contracts

Tue Mar 27 2007

NEW YORK, N.Y., March 27, 2007 — The New York Mercantile Exchange, Inc. today announced margin changes for the RBOB, RBOB financial, RBOB calendar swap, and NYMEX miNYTM RBOB futures contracts, beginning at the close of business tomorrow.

Margins for the first month of the RBOB, RBOB financial, and RBOB calendar swap futures contracts will increase to $4,750 from $4,500 for clearing members, to $5,225 from $4,950 for members, and to $6,413 from $6,075 for customers. The margins for the second to eighth months will increase to $4,500 from $4,250 for clearing members, to $4,950 from $4,675 for members, and to $6,075 from $5,738 for customers. Margins for all other months will remain the same.

Margins for the first month of the NYMEX miNY RBOB futures contract will increase to $2,375 from $2,250 for clearing members, to $2,613 from $2,475 for members, and to $3,206 from $3,038 for customers. The margins for the second to eighth months will increase to $2,250 from $2,125 for clearing members, to $2,475 from $2,338 for members, and $3,038 from $2,869 for customers. Margins for all other months will remain unchanged.

Contact: Steffanie Marchese, 299-2455 or  Keil Decker, 212-299-2209

Corporate Communications

+1 312 930 3434
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