X0206 3 2024-04-10 0 0000788965 HALLADOR ENERGY CO HNRG 0001783211 Hargrave Marjorie Anne 1183 EAST CANVASBACK DRIVE TERRE HAUTE IN 47802 1 Chief Financial Officer Common Stock 0 D Restricted Stock Units Common Stock 20747 D Each Restricted Stock Unit represents a contingent right to receive one share of Hallador Energy Common Stock. The Restricted Stock Units shall vest ratably over three years beginning March 31, 2025 per the terms of the Amended and Restated Restricted Stock Unit Plan. /s/ Marjorie Hargrave 2024-04-19