Notice to Members

Notice No. 104
02/22/2006

Change of Intra-Commodity Tiers and Margin Rates for the Financially Settled Petroleum Swaps Contracts

Effective Date: Wednesday, February 22, 2006(close of business)

Futures Contracts: WTI Bullet Swap (WS) and Brent Bullet Swap (BB)

Contract Months: All Months

Intra-Commodity Spread Tiers for WTI Bullet Swap (WS) and Brent Bullet Swap (BB)

Tiers	*New*	Old
1	1st Nearby	All Months
2	2nd - 5th Nearby	N/A
3	6th - 12th Nearby	N/A
4	Greater than 12th Nearby	N/A

NYMEX Division Intra-Commodity Spread Margins on WTI Bullet Swap (WS) and Brent Bullet Swap (BB)

Tiers	Clearing Member / Maintenance Margin		Member Customer Initial Margin		Non-Member Customer Initial Margin
	*New*	Old	*New*	Old	*New*	Old
1	$400	$400	$440	$440	$540	$540
2	$250	$400	$275	$440	$338	$540
3	$150	$400	$165	$440	$203	$540
4	$100	$400	$110	$440	$135	$540

Should you have any questions or require any further information, please contact exchangeinfo@nymex.com