X0609 4 2026-10-02 0 0001621434 Black Stone Minerals, L.P. BSM 0002110484 Hamman Anne Lenoir false 1001 FANNIN STREET, SUITE 2020 HOUSTON TX 77002 1 0 0 0 0 Common units representing limited partner interests 2026-10-02 4 A 0 1309 14.32 A 9737 D Common units representing limited partner interests 502703 I By family limited partnership Pursuant to a previous arrangement, the Reporting Person elected to receive common units in lieu of a cash retainer for service on the Board of Directors of the Partnership's General Partner. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. /s/ Steve Putman, attorney-in-fact for Anne Hamman 2026-10-05