| Notice to Members |
| Notice No. 570 12/14/2005 |
| Increase in Short-Option Minimum Margin |
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At its December 2005 meeting, the Board of Directors reviewed and approved a proposal to raise the short-option minimum margin from $10 to $25 for NYMEX Crude Oil, Heating Oil, and Unleaded Gasoline Options. The increase in the short-option margin will be phased in over a 3-month period in $5 increments, and will be implemented after the expiration of the December 2005 option contracts. The schedule for the increase is as follows:
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| Should you have any questions or require any further information, please contact exchangeinfo@nymex.com |