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CONTRACTS AND AGREEMENTS (Tables) | 3 Months Ended
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Mar. 31, 2018
Contracts and Agreements [Abstract] |
Brokerage Commissions | UNL also incurs commissions to brokers for the purchase and sale of Futures Contracts, Other Natural Gas-Related Investments or short-term obligations of the United States of two years or less (“Treasuries”).
|  | For the three months ended March 31, 2018 |  |  | For the three months ended March 31, 2017 |
Total commissions accrued to brokers |  | $ | 318 |  |  | $ | 434 |
Total commissions as annualized percentage of average total net assets |  |  | 0.02 | % |  |  | 0.01 | %
Commissions accrued as a result of rebalancing |  | $ | 185 |  |  | $ | 90 |
Percentage of commissions accrued as a result of rebalancing |  |  | 58.18 | % |  |  | 20.74 | %
Commissions accrued as a result of creation and redemption activity |  | $ | 133 |  |  | $ | 344 |
Percentage of commissions accrued as a result of creation and redemption activity |  |  | 41.82 | % |  |  | 79.26 | %

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