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

SecurityBSM / Black Stone Minerals, L.P. - Limited Partnership
InstitutionFayez Sarofim & Co
Latest Disclosed Ownership633,364 shares
Latest Disclosed Value $ 9,576,464
Fayez Sarofim & Co reports 17.43% increase in ownership of BSM / Black Stone Minerals, L.P. - Limited Partnership

On May 15, 2026 - Fayez Sarofim & Co filed a 13F-HR form disclosing ownership of 633,364 shares of Black Stone Minerals, L.P. - Limited Partnership (US:BSM) valued at $9,576,464 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 539,351 shares of Black Stone Minerals, L.P. - Limited Partnership. This represents a change in shares of 17.43% during the quarter. The current value of the position is $8,797,426 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 Partnership Shares 09225M101 633,364 94,013 17.43 9,576 33.61 0.0078
2026-02-13 2025-12-31 13F BLACK STONE MINERALS Partnership Shares 09225M101 539,351 0 0.00 7,168 1.13 0.0172
2025-11-14 2025-09-30 13F BLACK STONE MINERALS L P COM UNIT COM UNIT 09225M101 539,351 24,306 4.72 7,087 5.21 0.0164
2025-08-14 2025-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 515,045 24,305 4.95 6,737 -10.10 0.0162
2025-05-12 2025-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,494 4.59 0.0186
2025-02-14 2024-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,165 -3.32 0.0174
2024-11-14 2024-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,410 -3.63 0.0188
2024-08-14 2024-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,690 -1.95 0.0208
2024-05-14 2024-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,842 0.00 0.0234
2024-02-15 2023-12-31 13F BLACKSTONEMINERALSLP COMUNIT 09225M101 490,740 0 0.00 7,842 -7.25 0.0240
2023-11-15 2023-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 8,455 8.02 0.0285
2023-08-14 2023-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 0 0.00 7,827 1.66 0.0274
2023-05-11 2023-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 490,740 30,000 6.51 7,700 -0.94 0.0269
2023-02-13 2022-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 460,740 -7,008 -1.50 7,773 6.17 0.0287
2022-11-15 2022-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 467,748 0 0.00 7,320 14.32 0.0289
2022-08-12 2022-06-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 467,748 0 0.00 6,403 1.70 0.0234
2022-05-16 2022-03-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 467,748 0 0.00 6,296 30.30 0.0199
2022-02-11 2021-12-31 13F BLACK STONE MINERALS L P COM UNIT 09225M101 467,748 6,000 1.30 4,832 -13.16 0.0145
2021-11-15 2021-09-30 13F BLACK STONE MINERALS L P COM UNIT 09225M101 461,748 0 0.00 5,564 12.09 0.0184
2021-08-13 2021-06-30 13F BlackStoneMineralsLP COMMON 09225M101 461,748 0 0.00 4,964 23.30 0.0167
2021-05-13 2021-03-31 13F BlackStoneMineralsLP COMMON 09225M101 461,748 277,283 150.32 4,026 226.79 0.0148
2021-02-11 2020-12-31 13F BlackStoneMineralsLP COMMON 09225M101 184,465 0 0.00 1,232 8.74 0.0047
2020-11-13 2020-09-30 13F BlackStoneMineralsLP COMMON 09225M101 184,465 -637,759 -77.57 1,133 -78.80 0.0049
2020-08-11 2020-06-30 13F BlackStoneMineralsLP COMMON 09225M101 822,224 52,617 6.84 5,344 48.36 0.0246
2020-05-12 2020-03-31 13F BlackStoneMineralsLP COMMON 09225M101 769,607 0 0.00 3,602 -63.20 0.0221
2020-02-14 2019-12-31 13F BlackStoneMineralsLP COMMON 09225M101 769,607 0 0.00 9,789 -10.68 0.0471
2019-11-13 2019-09-30 13F BlackStoneMineralsLP COMMON 09225M101 769,607 361,647 88.65 10,959 73.32 0.0565
2019-08-09 2019-06-30 13F BlackStoneMineralsLP COMMON 09225M101 407,960 73,703 22.05 6,323 7.24 0.0327
2019-05-14 2019-03-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,896 13.95 0.0311
2019-02-13 2018-12-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,174 -15.00 0.0312
2018-11-14 2018-09-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 6,087 -1.50 0.0318
2018-08-14 2018-06-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 6,180 11.71 0.0333
2018-05-10 2018-03-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,532 -7.75 0.0300
2018-02-13 2017-12-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,997 3.47 0.0311
2017-11-08 2017-09-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,796 10.02 0.0305
2017-08-11 2017-06-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,268 -4.55 0.0281
2017-05-12 2017-03-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,519 -12.08 0.0301
2017-02-14 2016-12-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 6,277 5.44 0.0345
2016-11-21 2016-09-30 13F/A-1 BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,953 14.90 0.0324
2016-11-14 2016-09-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 5,953
2016-08-10 2016-06-30 13F BlackStoneMineralsLP COMMON 09225M101 334,257 0 0.00 5,181 10.63 0.0284
2016-05-13 2016-03-31 13F BlackStoneMineralsLP COMMON 09225M101 334,257 1,875 0.56 4,683 -2.36 0.0268
2016-02-12 2015-12-31 13F BlackStoneMineralsLP COMMON 09225M101 332,382 -2,000 -0.60 4,796 3.94 0.0276
2015-11-12 2015-09-30 13F BlackStoneMineralsLP COMMON 09225M101 334,382 334,382 4,614 0.0266
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.