United States 12 Month Oil Fund, LP
US ˙ ARCA

SecurityUSL / United States 12 Month Oil Fund, LP
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership4,961 shares
Latest Disclosed Value $ 239,120
Simplex Trading, Llc ownership in USL / United States 12 Month Oil Fund, LP

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 4,961 shares of United States 12 Month Oil Fund, LP (US:USL) valued at $239,120 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 0 shares of United States 12 Month Oil Fund, LP. The current value of the position is $269,531 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (USL) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

USL / United States 12 Month Oil Fund, LP Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 4,961 4,961 239 0.0001
2026-02-11 2025-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -100.00 0
2025-11-12 2025-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 56 21 60.00 0 0.0000
2025-08-05 2025-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 35 35 0 0.0000
2025-02-11 2024-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -133 -100.00 0 0.0000
2024-11-08 2024-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 133 -89 -40.09 0 0.0000
2024-07-25 2024-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 222 222 0 0.0000
2024-04-25 2024-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -289 -100.00 0 0.0000
2024-02-02 2023-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 289 63 27.88 0 0.0000
2023-11-01 2023-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 226 0 0.00 0 0.0000
2023-08-04 2023-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 226 -10,365 -97.87 0 0.0000
2023-04-27 2023-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 10,591 -142 -1.32 0 0.0003
2023-02-02 2022-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 10,733 -2,328 -17.82 0 -100.00 0.0004
2022-11-04 2022-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 13,061 -6,483 -33.17 424 -45.15 0.0005
2022-08-03 2022-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 19,544 -504 -2.51 773 3.90 0.0008
2022-05-02 2022-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 20,048 -22,971 -53.40 744 -38.05 0.0007
2022-02-23 2021-12-31 13F/A-1 UNITED STS 12 MONTH OIL FD L COM 91288V103 43,019 12,411 40.55 1,201 51.45 0.0012
2022-02-04 2021-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 30,608 0 793 0.0003
2021-10-28 2021-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 30,608 -400 -1.29 793 0.00 0.0007
2021-08-12 2021-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 31,008 -17,760 -36.42 793 -22.33 0.0008
2021-04-26 2021-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 48,768 16,021 48.92 1,021 81.67 0.0018
2021-02-02 2020-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 32,747 -28,223 -46.29 562 -38.71 0.0007
2020-10-14 2020-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 60,970 14,499 31.20 917 34.06 0.0012
2020-07-13 2020-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 46,471 46,071 11,517.75 684 17,000.00 0.0011
2020-04-29 2020-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 400 400 -99.14 4 -99.42 0.0000
2019-10-15 2019-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -176 -100.00 0 -100.00
2019-07-26 2019-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 176 -1,300 -88.08 3 -90.91 0.0000
2019-04-18 2019-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 1,476 100 7.27 33 37.50 0.0001
2019-01-16 2018-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 1,376 1,376 -6.78 24 -27.27 0.0001
2018-10-23 2018-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -200 -100.00 0 -100.00
2018-07-30 2018-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 200 200 5 0.0000
2018-01-10 2017-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -13 -100.00 0 -100.00 0.0000
2017-10-25 2017-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 13 13 0.00 0 0.0000
2017-04-21 2017-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -704 -100.00 0 -100.00
2017-01-11 2016-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 704 704 14 0.0008
2016-07-18 2016-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 0 -1,489 -100.00 0 -100.00
2016-04-14 2016-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 1,489 -3,098 -67.54 24 -69.23 0.0019
2016-01-20 2015-12-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 4,587 3,632 380.31 78 310.53 0.0061
2015-10-08 2015-09-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 955 779 442.61 19 375.00 0.0014
2015-07-08 2015-06-30 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 176 65 58.56 4 100.00 0.0003
2015-04-21 2015-03-31 13F UNITED STS 12 MONTH OIL FD L COM 91288V103 111 111 2 0.0002
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-11 2025-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 n/a n/a n/a
2025-11-12 2025-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 200 0 n/a n/a n/a
2024-11-08 2024-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 n/a n/a n/a
2024-07-25 2024-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 300 0.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 300 -57.14 0 n/a n/a n/a
2024-02-02 2023-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 700 0.00 0 n/a n/a n/a
2023-11-01 2023-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 700 0 n/a n/a n/a
2023-08-04 2023-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 n/a n/a n/a
2023-04-27 2023-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 6,100 -1.61 0 n/a n/a n/a
2023-02-02 2022-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 6,200 0 n/a n/a n/a
2022-08-03 2022-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-02 2022-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 4,400 131.58 163 207.55 n/a n/a n/a
2022-02-23 2021-12-31 13F/A UNITED STS 12 MONTH OIL FD L CALL Call 1,900 -95.54 53 -95.20 n/a n/a n/a
2022-02-04 2021-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 42,600 1,104 n/a n/a n/a
2021-10-28 2021-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 42,600 4.67 1,104 6.05 n/a n/a n/a
2021-08-12 2021-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 40,700 12,739.12 1,041 56.78 n/a n/a n/a
2021-04-26 2021-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 317 -60.33 664 -51.64 n/a n/a n/a
2021-02-02 2020-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 799 231.54 1,373 279.28 n/a n/a n/a
2020-10-14 2020-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 241 -46.44 362 -45.40 n/a n/a n/a
2020-07-13 2020-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 450 14,900.00 663 22,000.00 n/a n/a n/a
2020-04-29 2020-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 3 3 n/a n/a n/a
2019-07-26 2019-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-04-18 2019-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 24 0.00 54 25.58 n/a n/a n/a
2019-01-16 2018-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 24 0.00 43 -20.37 n/a n/a n/a
2018-07-30 2018-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-04-26 2018-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 1 0.00 0 n/a n/a n/a
2018-01-10 2017-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 n/a n/a n/a
2017-10-25 2017-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 1 0.00 0 n/a n/a n/a
2017-01-11 2016-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-10-07 2016-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 25 150.00 6 100.00 n/a n/a n/a
2016-07-18 2016-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 10 -82.14 3 50.00 n/a n/a n/a
2016-04-14 2016-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 56 5,500.00 2 -33.33 n/a n/a n/a
2016-01-20 2015-12-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 1 -99.03 0 -100.00 n/a n/a n/a
2015-10-08 2015-09-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 103 10,200.00 16 n/a n/a n/a
2015-07-08 2015-06-30 13F UNITED STS 12 MONTH OIL FD L CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-04-21 2015-03-31 13F UNITED STS 12 MONTH OIL FD L CALL Call 9 0 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-07-25 2024-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 400 0.00 0 n/a n/a n/a
2024-02-02 2023-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 400 300.00 0 n/a n/a n/a
2023-11-01 2023-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 100 0.00 0 n/a n/a n/a
2023-08-04 2023-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 100 -98.78 0 n/a n/a n/a
2023-04-27 2023-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 8,200 1,950.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 400 -20.00 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 500 16 n/a n/a n/a
2022-08-03 2022-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-02 2022-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 200 -98.91 7 -98.64 n/a n/a n/a
2022-02-23 2021-12-31 13F/A UNITED STS 12 MONTH OIL FD L PUT Put 18,400 145.33 513 164.43 n/a n/a n/a
2022-02-04 2021-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 7,500 194 n/a n/a n/a
2021-10-28 2021-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 7,500 -1.32 194 0.00 n/a n/a n/a
2021-08-12 2021-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 7,600 10,310.96 194 27.63 n/a n/a n/a
2021-04-26 2021-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 73 -76.97 152 -72.06 n/a n/a n/a
2021-02-02 2020-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 317 -36.09 544 -27.08 n/a n/a n/a
2020-10-14 2020-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 496 -27.06 746 -25.55 n/a n/a n/a
2020-07-13 2020-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 680 2,856.52 1,002 3,478.57 n/a n/a n/a
2020-04-29 2020-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 23 -96.62 28 -97.21 n/a n/a n/a
2019-10-15 2019-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-07-26 2019-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 6 -57.14 12 -61.29 n/a n/a n/a
2019-04-18 2019-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 14 -6.67 31 19.23 n/a n/a n/a
2019-01-16 2018-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 15 7.14 26 -16.13 n/a n/a n/a
2018-10-23 2018-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-07-30 2018-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 3 7 n/a n/a n/a
2017-04-21 2017-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-01-11 2016-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 8 -20.00 0 -100.00 n/a n/a n/a
2016-10-07 2016-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 10 25.00 1 n/a n/a n/a
2016-07-18 2016-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-04-14 2016-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 35 -25.53 3 -75.00 n/a n/a n/a
2016-01-20 2015-12-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 47 -70.06 12 -25.00 n/a n/a n/a
2015-10-08 2015-09-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 157 15,600.00 16 33.33 n/a n/a n/a
2015-07-08 2015-06-30 13F UNITED STS 12 MONTH OIL FD L PUT Put 1 0.00 0 -100.00 n/a n/a n/a
2015-04-21 2015-03-31 13F UNITED STS 12 MONTH OIL FD L PUT Put 1 0 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.