Notice to Members
Notice No. 452
09/30/2005
Margin Rates Change for Existing Nymex Division Natural Gas Basis Swap Contracts
EFFECTIVE DATE: Monday, October 3, 2005(close of business)

FUTURES CONTRACTS:
Basis Swaps:
ANR Oklahoma (NE), Houston Ship Channel Basis Swap (NH), Waha Basis Swap (NW), PGE&E Malin Basis Swap (PB), PGE&E Citygate Basis Swap (PC), NGPL Tex/OK Basis Swap (PD), Northern Natural Gas Demarcation Basis Swap (PE), Northern Natural Gas Ventura, Iowa Basis Swap (PF), Panhandle Basis Swap (PH), Permian Basin Basis Swap (PM)
CONTRACT MONTHS: All Months

NYMEX Division Margin Rates For Existing Natural Gas Basis Swaps
 
 
Clearing Member / Maintenance Margin
Member Customer Initial Margin
Non-Member Customer Initial Margin
Spot Assessment
 Natural Gas Basis Financial
New
Old
New
Old
New
Old
New
Old
Houston Ship Channel Swap (NH)                
Tier 1 - 1st Nearby
$525 $250 $578 $275 $709 $338 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$325 $125 $358 $138 $439 $169    
Panhandle Swap (PH)                
Tier 1 - 1st Nearby
$800 $625 $880 $688 $1,080 $844 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$400 $375 $440 $413 $540 $506    
Permian Swap (PM)                
Tier 1 - 1st Nearby
$800 $625 $880 $688 $1,080 $844 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$450 $375 $495 $413 $608 $506    
PGE&E Malin Swap (PB)                
Tier 1 - 1st Nearby
$875 $625 $963 $688 $1,181 $844 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$400 $250 $440 $275 $540 $338    
PGE&E Citygate Swap (PC)                
Tier 1 - 1st Nearby
$925 $625 $1,018 $688 $1,249 $844 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$475 $375 $523 $413 $641 $506    
NGPL Tex / OK Swap (PD)                
Tier 1 - 1st Nearby
$425 $200 $468 $220 $574 $270 $500 $500
Tier 2: 2nd Nearby and Greater
$275 $175 $303 $193 $371 $236    
ANR Oklahoma Swap (NE)                
Tier 1 - 1st Nearby
$825 $250 $908 $275 $1,114 $338 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$325 $250 $358 $275 $439 $338    
Northern Natural Gas Demarcation Swap (PE)                
Tier 1 - 1st Nearby
$450 $250 $495 $275 $608 $338 $500 $500
Tier 2: 2nd Nearby and Greater
$275 $200 $303 $220 $371 $270    
Northern Natural Gas Ventura, Iowa Swap (PF)                
Tier 1 - 1st Nearby
$425 $250 $468 $275 $574 $338 $500 $500
Tier 2: 2nd Nearby and Greater
$275 $200 $303 $220 $371 $270    
Waha Swap (NW)                
Tier 1 - 1st Nearby
$725 $250 $798 $275 $979 $338 $1,000 $1,000
Tier 2: 2nd Nearby and Greater
$325 $250 $358 $275 $439 $338    
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com