The New York Mercantile Exchange, Inc. is launching four Electricity Option Contracts on trade date Monday, December 18, 2006. Please note below the corresponding accountability levels (Rule 9.26), position limits (Rule 9.27) and reportable levels (9.34) for the new contracts.

For the Clearing Members that file reports pursuant to NYMEX Rule 9.33 in a machine-readable format, the Exchange commodity codes are also provided below.

Contract Name	Rule Chapter	Commodity Code	All/ Any One Month Accountability Level	Expiration Month Limit	Expiration Account- ability Level Penultimate Contracts	Expiration Account- ability Level Last Day Contracts	Reporting Level	Aggregate Into (1)	Aggregate Into (2)
			Rule 9.26	Rule 9.27	Rule 9.27A	Rule 9.27A	Rule 9.34
Electricity
NORTHERN ILLINOIS Calendar-Month LMP Swap Option	384	OU	5,000	500			25	UM
AEP-DAYTON Calendar-Month LMP Swap Option	382	OT	5,000	500			25	VM
CINERGY Calendar-Month LMP Swap Option	383	OY	5,000	500			25	EM
ISO New England Calendar-Month LMP Swap Option	381	OE	5,000	500			25	NI