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Argus Sour Crude Index (ASCI) vs. WTI Diff Spread Trade Month Futures Contract Specs

Contract Unit 1,000 barrels
Price Quotation U.S. dollars and cents per barrel
Trading Hours Sunday - Friday 6:00 p.m. - 5:00 p.m. (5:00 p.m. - 4:00 p.m. CT) with a 60-minute break each day beginning at 5:00 p.m. (4:00 p.m. CT)
Minimum Price Fluctuation 0.01 per barrel = $10.00
Product Code CME Globex: 36
CME ClearPort: 36
Clearing: 36
Listed Contracts Monthly contracts listed for 36 consecutive months
Settlement Method Financially Settled
Floating Price The Floating Price for each contract month is equal to the arithmetic average of the Argus Sour Crude Index ("ASCI") differential (Diff) price for the front month from Argus Media, which is based on the ASCI price minus the WTI Formula Basis price, for the Trade month period beginning with the first business day after the 25th calendar day two months prior to the contract month through the last business day that falls on or before the 25th calendar day of the month prior to the contract month. If the 25th calendar day is a weekend or holiday, the Trade month period shall end on the first business day prior to the 25th calendar day.
Termination Of Trading Trading terminates on business day before the 26th day of the month prior to the contract month.
Position Limits NYMEX Position Limits
Exchange Rulebook NYMEX 222
Block Minimum Block Minimum Thresholds
Vendor Codes Quote Vendor Symbols Listing