| Trading Unit: | 10,000 million British thermal units (mmBtu) |
| Tick Size: | $0.001 (0.1 ¢) per MMBtu ($10 per contract) |
| Quoted Units: | US $ per mmBtu |
| Initial Margin: | $9,788 Maint Margin: $7,250 |
| Contract Months: | All 12 months. |
| First Notice Day: | Business day after last trading day. |
| Last Trading Day: | Trading terminates three business days prior to the first calendar day of the delivery month. |
| Trading Hours: | 10:00 A.M. - 2:30 P.M., for the open outcry session. Electronic: 3:15 P.M. on Mondays through Thursdays and concluding at 9:00 A.M. the following day. On Sundays, the session begins at 7:00 P.M. All times are New York time.
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| Daily Limit: | $3.00 per mmBtu ($30,000 per contract) |