X0306 4 2020-03-06 0001172358 DORCHESTER MINERALS, L.P. DMLP 0001049123 MCMANEMIN WILLIAM CASEY 3838 OAK LAWN AVE SUITE 300 DALLAS TX 75219 1 1 Chief Executive Officer Common Units 2020-03-06 4 P 0 180 13.45 A 431356 I See footnote Common Units 2020-03-06 4 P 0 1200 13.47 A 432556 I See footnote Common Units 2020-03-06 4 P 0 11000 13.50 A 443556 I See footnote Common Units 2020-03-06 4 P 0 55 13.75 A 443611 I See footnote Common Units 2020-03-09 4 P 0 41 11.37 A 443652 I See footnote Common Units 2020-03-09 4 P 0 1000 12.23 A 444652 I See footnote Common Units 2020-03-09 4 P 0 767 12.47 A 445419 I See footnote Common Units 2020-03-09 4 P 0 3041 12.90 A 448460 I See footnote Common Units 2020-03-09 4 P 0 2000 12.91 A 450460 I See footnote Common Units 2020-03-09 4 P 0 5010 12.93 A 455470 I See footnote Common Units 2020-03-09 4 P 0 5000 13 A 460470 I See footnote Common Units 2020-03-10 4 P 0 1000 11.94 A 461470 I See footnote Common Units 2020-03-10 4 P 0 5000 12.01 A 466470 I See footnote Common Units 5531 I See footnote Common Units 53224 I See footnote Common Units 731481 D Held by 1307, Ltd. Mr. McManemin disclaims beneficial ownership of those common units owned by 1307, Ltd. in which he does not have a pecuniary interest. Mr. McManemin is the sole manager of Cabana Management LLC, the sole general partner of 1307, Ltd. Held by SAM Partners Management, Inc. Mr. McManemin disclaims beneficial ownership of those common units owned by SAM Partners Management, Inc. in which he does not have a pecuniary interest. Mr. McManemin is the Vice President and a shareholder of SAM Partners Management, Inc. Held by Smith Allen Oil & Gas, LLP. Mr. McManemin disclaims beneficial ownership of those common units owned by Smith Allen Oil & Gas, LLP in which he does not have a pecuniary interest. Mr. McManemin is the Vice President and a shareholder of Smith Allen Oil & Gas, LLP. Exhibit List Exhibit 24 - Power of Attorney /s/ William Casey McManemin 2020-03-10