X0508 4/A 2023-10-06 2023-10-10 0 0001621434 Black Stone Minerals, L.P. BSM 0001639921 Stuart Alexander D. 1001 FANNIN STREET, SUITE 2020 HOUSTON TX 77002 1 0 0 0 0 Common units representing limited partner interests 186444 D Common units representing limited partner interests 142916 I By GRAT This amendment corrects the total holdings reported by the Reporting Person in Column 5. Prior to the date of this report, a grantor retained annuity trust granted by the Reporting Person paid an annuity of 30,400 Issuer common units to the Reporting Person in a non-reportable transaction. The payment of the annuity is reflected in the Column 5 totals. /s/ Steve Putman, attorney-in-fact for Alexander D. Stuart 2023-10-10