Notice to Members
Notice No. 55
02/10/2005
Margin Rates For New NYMEX Electricity Swap Futures Contracts
EFFECTIVE DATE: Friday, February 11, 2005 (close of business)

FUTURES CONTRACTS:
NYMEX Northern Illinois Hub Calendar-Month LMP (PJM Interconnection, LLC) Swap (UM); the NYMEX Northern Illinois Hub Calendar-Day (PJM Interconnection, LLC) Swap (UD); the NYMEX AEP-Dayton Hub Calendar-Month LMP (PJM Interconnection, LLC) Swap (VM); the NYMEX AEP-Dayton Hub Calendar-DAY LMP (PJM Interconnection, LLC) (VD); the NYMEX PJM (PJM Interconnection, LLC) Calendar-Month Off-Peak LMP Swap (JP); the NYMEX Northern Illinois Hub Calendar-Month Off-Peak LMP (PJM Interconnection, LLC) Swap (UO); the NYMEX AEP-Dayton Hub Calendar-Month Off-Peak LMP (PJM Interconnection, LLC) Swap (VP); the NYMEX NYISO Zone A Off-Peak LBMP Swap (KB); the NYMEX NYISO Zone G Off-Peak LBMP Swap Contract (KH); NYMEX NYISO Zone J Off-Peak LBMP Swap Contract (KK); and the NYMEX ISO New England Internal Hub Off-Peak LMP Swap (KI)
CONTRACT MONTHS: All Months

Note: The revised margins are in bold.



NYMEX Division Outright (Scan) Margin on New Electricity Swap Futures Contracts
Commodities
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
New
New
New
JP
$3,500
$3,850
$4,725
KB
$3,000
$3,300
$4,050
KH
$3,000
$3,300
$4,050
KI
$3,000
$3,300
$4,050
KK
$3,000
$3,300
$4,050
UD
$1,500
$1,650
$2,025
UM
$1,500
$1,650
$2,025
UO
$1,500
$1,650
$2,025
VD
$2,000
$2,200
$2,700
VM
$2,000
$2,200
$2,700
VP
$2,500
$2,750
$3,375


NYMEX Division Intra-Commodity Spread Margins On New Monthly Electricity Swap Futures Contracts
Commodities
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
New
New
New
JP
$2,000
$2,200
$2,700
KB
$2,000
$2,200
$2,700
KH
$1,500
$1,650
$2,025
KI
$1,500
$1,650
$2,025
KK
$1,500
$1,650
$2,025
UM
$800
$880
$1,080
UO
$800
$880
$1,080
VM
$1,000
$1,100
$1,350
VP
$1,200
$1,320
$1,620
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com