X0306 4 2019-05-14 0 0000788965 HALLADOR ENERGY CO HNRG 0001210010 LAWRENCE BRYAN H 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022-4407 1 0 0 0 Common Stock, par value $0.01 per share 2019-05-14 4 J 0 7351 0.00 A 493132 D Common Stock, par value $0.01 per share 2019-05-14 4 J 0 500000 0.00 D 450000 I See footnote Common Stock, par value $0.01 per share 604904 I See footnote Common Stock, par value $0.01 per share 361094 I See footnote Pro rata distributions from Yorktown Energy Partners VIII, L.P., Yorktown VIII Company LP and Yorktown VIII Associates LLC. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose. These securities are owned directly by Yorktown Energy Partners VIII, L.P. The reporting person is a member and a manager of Yorktown VIII Associates LLC, the general partner of Yorktown VIII Company LP, the general partner of Yorktown Energy Partners VIII, L.P. These securities are owned directly by Yorktown Energy Partners VI, L.P. The reporting person is a member and a manager of Yorktown VI Associates LLC, the general partner of Yorktown VI Company LP, the general partner of Yorktown Energy Partners VI, L.P. These securities are owned directly by Yorktown Energy Partners VII, L.P. The reporting person is a member and a manager of Yorktown VII Associates LLC, the general partner of Yorktown VII Company LP, the general partner of Yorktown Energy Partners VII, L.P. /s/ Bryan H. Lawrence 2019-05-16