Notice to Members

Notice No. 370
07/27/2007

New Margin Rates and Tiers for New Brent Crude Oil Futures Last Day Contract

EFFECTIVE DATE: Monday, July 30, 2007 (close of business)

FUTURES CONTRACTS: Brent Crude Oil Futures Last Day Contract (BZ)

CONTRACT MONTHS: All Months

Outright (Scan) Spread Tiers for Brent Crude Oil Futures Last Day Contract (BZ)

Tiers	*New*
1	All Months

NYMEX Division Outright (Scan) Margin on Brent Crude Oil Futures Last Day Contract (BZ)

Commodity	Clearing Member / Maintenance Margin	Member Customer Initial Margin	Non-Member Customer Initial Margin
	*New*	*New*	*New*
BZ	$3,500	$3,850	$4,725

Intra-Commodity Spread Tiers for Brent Crude Oil Futures Last Day Contract (BZ)

Tiers	*New*
1	1st Nearby
2	2nd – 5th Nearby
3	6th – 12th Nearby
4	Greater than 12th Nearby

NYMEX Division Intra-Commodity Spread Margins on Brent Crude Oil Futures Last Day Contract (BZ)

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

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