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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
12 Months Ended
Dec. 31, 2025
FAIR VALUE OF FINANCIAL INSTRUMENTS  
Summary of valuation of BNO's securities using fair value hierarchy

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At December 31, 2025

  ​ ​ ​

Total

  ​ ​ ​

Level I

  ​ ​ ​

Level II

  ​ ​ ​

Level III

Short-Term Investments

​

$

62,750,000

​

$

62,750,000

​

$

—

​

$

—

Exchange-Traded Futures Contracts

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​

​

​

​

​

​

​

​

​

​

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Foreign Contracts

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$

2,337,370

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$

2,337,370

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$

—

​

$

—

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​

​

​

​

​

​

​

​

​

​

​

​

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At December 31, 2024

  ​ ​ ​

Total

  ​ ​ ​

Level I

  ​ ​ ​

Level II

  ​ ​ ​

Level III

Short-Term Investments

​

$

75,000,000

​

$

75,000,000

​

$

—

​

$

—

Exchange-Traded Futures Contracts

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​

​

​

​

​

​

​

​

​

​

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Foreign Contracts

​

$

2,601,040

​

$

2,601,040

​

$

—

​

$

—

Summary of fair value of derivative instruments

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Statements of

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Derivatives not Accounted

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Financial

​

Fair Value at

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Fair Value at

for as Hedging

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Condition

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December 31, 

​

December 31, 

Instruments

  ​ ​ ​

Location

  ​ ​ ​

2025

  ​ ​ ​

2024

Futures - Commodity Contracts

 

Unrealized gain (loss) on open commodity futures contracts

​

$

2,337,370

​

$

2,601,040

Summary of effect of derivative instruments on the statements of operations

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For the year ended

​

For the year ended

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For the year ended

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December 31, 2025

​

December 31, 2024

​

December 31, 2023

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  ​ ​ ​

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  ​ ​ ​

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  ​ ​ ​

Change in

  ​ ​ ​

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  ​ ​ ​

Change in

  ​ ​ ​

  ​ ​ ​

​

  ​ ​ ​

Change in

​

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Location of

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Realized

​

Unrealized

​

Realized

​

Unrealized

​

Realized

​

Unrealized

Derivatives not

​

Gain (Loss)

​

Gain (Loss)

​

Gain (Loss) on

​

Gain (Loss)

​

Gain (Loss) on

​

Gain (Loss)

​

Gain (Loss) on

Accounted for

​

on Derivatives

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on Derivatives

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Derivatives

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in Derivatives

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Derivatives

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in Derivatives

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Derivatives

as Hedging

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Recognized in

​

Recognized in

​

Recognized in

​

Recognized in

​

Recognized in

​

Recognized in

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Recognized in

Instruments

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Income

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Income

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Income

​

Income

​

Income

​

Income

​

Income

Futures - Commodity Contracts

 

Realized gain (loss) on closed commodity futures contracts

​

$

(6,622,950)

​

​

​

​

$

1,237,760

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​

​

​

$

5,488,970

​

 

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Change in unrealized gain (loss) on open commodity futures contracts

​

​

​

​

$

(263,670)

​

​

​

​

$

3,782,570

​

​

​

​

$

(16,427,730)

​