Black Stone Minerals, L.P. - Limited Partnership
US ˙ NYSE ˙ US09225M1018

SecurityBSM / Black Stone Minerals, L.P. - Limited Partnership
InstitutionFmr Llc
Latest Disclosed Ownership4,537,171 shares
Latest Disclosed Value $ 68,602,026
Fmr Llc reports 141.19% increase in ownership of BSM / Black Stone Minerals, L.P. - Limited Partnership

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 4,537,171 shares of Black Stone Minerals, L.P. - Limited Partnership (US:BSM) valued at $68,602,026 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,881,122 shares of Black Stone Minerals, L.P. - Limited Partnership. This represents a change in shares of 141.19% during the quarter. The current value of the position is $63,157,420 USD.

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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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)
2026-05-15 2026-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 4,537,171 2,656,049 141.19 68,602 174.41 0.0007
2026-02-17 2025-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,881,122 1,881,122 25,000 0.0013
2025-05-12 2025-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 0 -2 -100.00 0 0.0000
2025-02-13 2024-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 2 -49 -96.08 0 0.0000
2024-11-13 2024-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 51 48 1,600.00 1 0.0000
2024-08-13 2024-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 3 2 200.00 0 0.0000
2024-05-13 2024-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1 -1 -50.00 0 0.0000
2024-02-13 2023-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 2 2 0 0.0000
2023-11-13 2023-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 0 -2 -100.00 0 0.0000
2023-08-11 2023-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 2 1 100.00 0 0.0000
2023-08-11 2023-03-31 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 1 1 0 0.0000
2023-05-11 2023-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1 1 0 0.0000
2022-02-14 2021-09-30 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 0 -34,501 -100.00 0 -100.00
2021-11-15 2021-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 0 -34,501 0
2021-08-13 2021-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 34,501 -52,542 -60.36 371 -51.12 0.0000
2021-05-14 2021-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 87,043 -1,003,213 -92.02 759 -89.58 0.0001
2021-02-08 2020-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,090,256 944,456 647.78 7,283 713.74 0.0006
2020-11-13 2020-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 145,800 0 0.00 895 -5.59 0.0001
2020-08-24 2020-06-30 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 145,800 -1,701 -1.15 948 37.39 0.0001
2020-08-13 2020-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 145,800 -1,701 948 23.2896
2020-05-14 2020-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 147,501 -1,310,358 -89.88 690 -96.28 0.0001
2020-02-07 2019-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,457,859 50,153 3.56 18,544 -7.49 0.0020
2019-11-13 2019-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,407,706 -8,330 -0.59 20,046 -8.67 0.0024
2019-08-13 2019-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,416,036 323,936 29.66 21,949 13.93 0.0026
2019-05-13 2019-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,092,100 -12,300 -1.11 19,265 12.69 0.0023
2019-02-13 2018-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,104,400 -4,300 -0.39 17,096 -15.32 0.0023
2018-11-09 2018-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,108,700 -11,400 -1.02 20,189 -2.52 0.0023
2018-08-10 2018-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,120,100 -688,784 -38.08 20,711 -30.82 0.0024
2018-05-14 2018-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,808,884 42,457 2.40 29,937 -5.53 0.0036
2018-02-12 2017-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,766,427 -373 -0.02 31,690 3.44 0.0037
2017-11-13 2017-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,766,800 0 0.00 30,636 10.02 0.0037
2017-08-29 2017-06-30 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 1,766,800 127,052 7.75 27,845 2.86 0.0035
2017-08-11 2017-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,766,800 127,052 27,845
2017-05-11 2017-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,639,748 8,548 0.52 27,072 -11.63 0.0034
2017-02-10 2016-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,631,200 -165,000 -9.19 30,634 -4.24 0.0041
2016-11-14 2016-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 1,796,200 -1,321,555 -42.39 31,990 -33.80 0.0043
2016-08-11 2016-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 3,117,755 -280,995 -8.27 48,325 1.49 0.0066
2016-05-16 2016-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 3,398,750 424,064 14.26 47,616 10.93 0.0066
2016-02-12 2015-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 2,974,686 -362,784 -10.87 42,925 -6.80 0.0058
2015-11-10 2015-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 3,337,470 -99,000 -2.88 46,057 -22.17 0.0066
2015-08-25 2015-06-30 13F/A-1 BLACK STONE MINERALS L P COM UNIT 09225M101 3,436,470 3,436,470 59,176 0.0076
2015-08-13 2015-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 3,436,470 59,176 0.0076
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.