Nymex Increases Margins For Gasoline Futures And Calendar Swap Futures Contracts

The New York Mercantile Exchange, Inc., today announced margin increases for the September and October 2005 gasoline futures and New York Harbor gasoline calendar swap futures contracts, effective at the close of business today.

The September 2005 gasoline futures and New York Harbor gasoline calendar swap futures contracts will increase to $6,000 from $5,000 for clearing members; to $6,600 from $5,500 for members; and to $8,100 from $6,750 for customers.

The October 2005 gasoline futures and New York Harbor gasoline calendar swap futures contracts will increase to $6,000 from $4,000 for clearing members; to $6,600 from $4,400 for members; and to $8,100 from $5,400 for customers.