NYMEX Division Outright (Scan)  Margins New York Harbor Gasoline Blendstock (RBOB) Futures Contract (RB), RBOB Gasoline – Financial Contract (RT) and RBOB Calendar Swap (RL)

Tiers	Clearing Member / Maintenance Margin		Member Customer Initial Margin		Non-Member Customer Initial Margin
	New	Old	New	Old	New	Old
1	$5,500	$5,000	$6,050	$5,500	$7,425	$6,750
2	$5,000	$4,750	$5,500	$5,225	$6,750	$6,413
3	$4,250	$4,000	$4,675	$4,400	$5,738	$5,400
4	$4,000	$3,750	$4,400	$4,125	$5,400	$5,063

Tiers	Clearing Member / Maintenance Margin		Member Customer Initial Margin		Non-Member Customer Initial Margin
	New	Old	New	Old	New	Old
1	$2,750	$2,500	$3,025	$2,750	$3,713	$3,375
2	$2,500	$2,375	$2,750	$2,613	$3,375	$3,206
3	$2,125	$2,000	$2,338	$2,200	$2,869	$2,700
4	$2,000	$1,875	$2,200	$2,063	$2,700	$2,531

Scan Risk Example at Clearing Member Rates
A spread consisting of one RB leg in Tier 1 and another in Tier 2 will have its requirement (at the clearing member rates) calculated at $ 750 starting on Thursday, November 8, 2007.

One Long Tier 1 RB	(1 * $5,500)	=	$5,500
One Short Tier 2 RB	(1 * $5,000)	=	$5,000
Net Scan Risk	($5,500-$5,000)	=	$500
Spread Rate	(1* $ 250)	= +	$250
Total Requirement		=	$750
Summary
Clearing Member (Maintenance Margin):			$750
Member Customer (Initial Margin):			$825
Non-Member Customer (Initial Margin):			$1,013

This notice supersedes all previous notices regarding outright margins for the NY Harbor Gasoline Blendstock Contract, RBOB Gasoline – Financial Contract, RBOB Calendar Swap and NYMEX RBOB miNY™ Gasoline Contracts.