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Contract Specifications for NYMEX Henry Hub Natural Gas Futures (NG)

EXCHANGE Chicago Mercantile Exchange (CME)
PRODUCT CODE CME Globex: NG
CME ClearPort: NG
Clearing: NG
TAS: NGT
CONTRACT UNIT 10,000 million British thermal units (mmBtu).
PRICING QUOTATION U.S. dollars and cents per mmBtu.
MINIMUM PRICE FLUCTUATION $0.001 per MMBtu
TRADING HOURS CME Globex:
Sunday – Friday 6:00 pm – 5:00 pm (5:00 pm – 4:00 pm Chicago Time/CT) with a 60-minute break each day beginning at 5:00 pm (4:00 pm CT)

CME ClearPort:
Sunday – Friday 6:00 pm – 5:00 pm (5:00 pm – 4:00 pm Chicago Time/CT) with a 60-minute break each day beginning at 5:00 pm (4:00 pm CT)
TERMINATION OF TRADING Trading of any delivery month shall cease three (3) business days prior to the first day of the delivery month. In the event that the official Exchange holiday schedule changes subsequent to the listing of a Natural Gas futures, the originally listed expiration date shall remain in effect. In the event that the originally listed expiration day is declared a holiday, expiration will move to the business day immediately prior.
LISTED CONTRACT The current year plus the next twelve calendar years. A new calendar year will be added following the termination of trading in the December contract of the current year.
SETTLEMENT METHOD Deliverable
SETTLEMENT PROCEDURES Natural Gas Futures Settlement Procedures
POSITION LIMIT NYMEX Position Limits
TRADE AT MARKET OR TRADING AT SETTLEMENT RULES Trading at settlement is available for spot (except on the last trading day), 2nd, 3rd and 4th months and subject to the existing TAS rules. Trading in all TAS products will cease daily at 2:30 PM Eastern Time. The TAS products will trade off of a “Base Price” of 0 to create a differential (plus or minus 10 ticks) versus settlement in the underlying product on a 1 to 1 basis. A trade done at the Base Price of 0 will correspond to a “traditional” TAS trade which will clear exactly at the final settlement price of the day.
EXCHANGE RULEBOOK NYMEX 220
VENDOR CODES Quote Vendor Symbols Listing
PRICE LIMIT OR CIRCUIT NYMEX 220
BLOCK MINIMUM Block Minimum Thresholds
GRADE AND QUALITY Natural Gas meeting the specifications set forth in the FERC-approved tariff of Sabine Pipe Line Company as then in effect at the time of delivery shall be deliverable in satisfaction of futures contract delivery obligations.

This page was last updated: November 12, 2015

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