NYMEX Division Margin Rates for Existing Natural Gas Basis Swaps

	Clearing Member / Maintenance Margin		Member Customer Initial Margin		Non-Member Customer Initial Margin
Natural Gas Basis Financial	*New*	Old	*New*	Old	*New*	Old
CIG Rockies Swap (CI)
Tier 1	$2,000	$1,200	$2,200	$1,320	$2,700	$1,620
Tier 2	$2,500	$1,200	$2,750	$1,320	$3,375	$1,620
Tier 3	$750	$750	$825	$825	$1,013	$1,013
Tier 4	$500	$500	$550	$550	$675	$675
Tier 5	$400	$400	$440	$440	$540	$540
Florida Gas Zone 3 Swap (FP)
Tier 1	$300	$200	$330	$220	$405	$270
Tier 2	$200	$200	$220	$220	$270	$270
Tier 3	$200	$200	$220	$220	$270	$270
Tier 4	$200	$200	$220	$220	$270	$270
Tier 5	$200	$200	$220	$220	$270	$270
Northwest Pipeline, Rockies Swap (NR)
Tier 1	$1,500	$1,200	$1,650	$1,320	$2,025	$1,620
Tier 2	$1,500	$1,250	$1,650	$1,375	$2,025	$1,688
Tier 3	$800	$800	$880	$880	$1,080	$1,080
Tier 4	$300	$400	$330	$440	$405	$540
Tier 5	$200	$400	$220	$440	$270	$540
Tetco Eastern South/STX Swap (TX)
Tier 1	$400	$500	$440	$550	$540	$675
Tier 2	$300	$400	$330	$440	$405	$540
Tier 3	$200	$300	$220	$330	$270	$405
Tier 4	$200	$200	$220	$220	$270	$270
Tier 5	$100	$100	$110	$110	$135	$135

NYMEX Division Outright (Scan) Margin Rates For Existing Natural Gas Index Swaps

	Clearing Member / Maintenance Margin		Member Customer Initial Margin		Non-Member Customer Initial Margin
Natural Gas Index Financial	*New*	Old	*New*	Old	*New*	Old
Transco Zone 6 Index Swap (IT)
Tier 1	$3,000	$4,000	$3,300	$4,400	$4,050	$5,400
Tier 2	$1,000	$250	$1,100	$275	$1,350	$338
Tier 3	$100	$100	$110	$110	$135	$135

This notice supersedes all previous notices regarding these margin rates.