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ORGANIZATION AND BUSINESS (Details)
 1 Months Ended
Apr. 10, 2006
USD ($)
$ / shares
shares
Dec. 31, 2019
$ / shares
$ / item
shares
Dec. 31, 2018
$ / shares
Dec. 31, 2017
$ / shares
Dec. 31, 2016
$ / shares
Organization, Consolidation and Presentation of Financial Statements Disclosure          
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets | $ / item   1,000      
Limited Partners' Capital Account, Units Authorized 17,000,000 3,227,000,000      
Net asset value per unit | $ / shares $ 67.39 $ 12.78 $ 9.59 $ 12.08 $ 11.71
Limited Partners' Capital Account, Units Issued 200,000        
Value of units issued | $ $ 13,479,000        
Creation Baskets          
Organization, Consolidation and Presentation of Financial Statements Disclosure          
Number of units per basket   100,000      
Redemption Baskets          
Organization, Consolidation and Presentation of Financial Statements Disclosure          
Number of units per basket   100,000      
Open Futures Contracts- Long | United States Contracts | NYMEX WTI Crude Oil Futures CL February 2020 contracts, expiring January 2020          
Organization, Consolidation and Presentation of Financial Statements Disclosure          
Number of Contracts   19,178