X0407 4 2023-05-04 0 0001621434 Black Stone Minerals, L.P. BSM 0001337171 Putman Luke Stevens 1001 FANNIN STREET, SUITE 2020 HOUSTON TX 77002 0 1 0 0 SVP, GC, and Secretary 0 Common units representing limited partner interests 2023-05-04 4 S 0 100000 15.0557 D 486421 D The price reported in Column 4 is a weighted average price. These common units were sold in multiple transactions at prices ranging from $15.00 to 15.14, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units sold at each separate price within the ranges set forth in this footnote. /s/ Luke Stevens Putman 2023-05-05