News Release

Exchange Adds Trading Months for Natural Gas Calendar Spread Options

Fri May 27 2005
New York, N.Y., May 27, 2005 — The New York Mercantile Exchange, Inc., added an options contract on the differential between the January 2006 and March 2006 natural gas calendar spread options contracts today.

This is in addition to the current listing of 24 consecutive options on one-month spreads. Other spread combinations already listed include spreads between the first and third nearby months, the first and fourth nearby months, the second and fourth nearby months, as well as spreads between the first nearby June and December, the first nearby December to June, the first nearby December to the second nearby December, the first nearby October to January, the first nearby April to the second nearby October, the first nearby August to October, and the first nearby October to the second nearby April.



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