    <SEC-DOCUMENT>0001437749-23-010779-index.html : 20230421
    <SEC-HEADER>0001437749-23-010779.hdr.sgml : 20230421
    <ACCEPTANCE-DATETIME>20230421092108
    ACCESSION NUMBER:		0001437749-23-010779
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20230421
    DATE AS OF CHANGE:		20230421

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HALLADOR ENERGY CO
    		CENTRAL INDEX KEY:			0000788965
    		STANDARD INDUSTRIAL CLASSIFICATION:	BITUMINOUS COAL & LIGNITE MINING [1220]
    		IRS NUMBER:				841014610
    		STATE OF INCORPORATION:			CO
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34743
    		FILM NUMBER:		23834824

    	BUSINESS ADDRESS:
    		STREET 1:		1183 EAST CANVASBACK DRIVE
    		CITY:			TERRE HAUTE
    		STATE:			IN
    		ZIP:			47802
    		BUSINESS PHONE:		303-839-5504

    	MAIL ADDRESS:
    		STREET 1:		1183 EAST CANVASBACK DRIVE
    		CITY:			TERRE HAUTE
    		STATE:			IN
    		ZIP:			47802

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	HALLADOR PETROLEUM CO
    		DATE OF NAME CHANGE:	19920703

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	KIMBARK OIL & GAS CO /CO/
    		DATE OF NAME CHANGE:	19900102

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	KIMBARK INC
    		DATE OF NAME CHANGE:	19860624
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>hnrg20230420_defa14a.htm
    <DESCRIPTION>FORM DEFA14A
    <TEXT>
    Document 1 - file: hnrg20230420_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>pc01.jpg
    <TEXT>
    Document 2 - file: pc01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>pc02.jpg
    <TEXT>
    Document 3 - file: pc02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>pc03.jpg
    <TEXT>
    Document 4 - file: pc03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>pc04.jpg
    <TEXT>
    Document 5 - file: pc04.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>