| Notice to Members |
| Notice No. 221 05/27/2005 |
| Expansion of Trading Months for Natural Gas Calendar Spread Options |
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| Please be advised that beginning Friday, May 27, 2005 the Exchange will list an additional expiration month on its Natural Gas Calendar Spread Option Contracts. Beginning that day, there will be an option on the January 2006/March 2006 inter-month spread.
This will be in addition to the current listings of 24 consecutive options on one-month spreads. The Options on Spreads between the first and third nearby months, the first and fourth nearby months, and the second and fourth nearby months, as well as the spreads between first nearby June - first nearby December, first nearby December - first nearby June, the first nearby December - second nearby December, first nearby October - first nearby January, and first nearby April - second nearby October, first nearby August - first nearby October, and first nearby October – second nearby April contracts will continue to be listed for Natural Gas Calendar Spread Options. |
| Should you have any questions or require any further information, please contact exchangeinfo@nymex.com |