Bilsland Brent K

Bilsland Brent K

18 May 17

Bilsland Brent K

31 Dec 15

Bilsland Brent K

23 Dec 13

Bilsland Brent K

18 Dec 12

Bilsland Brent K

23 Dec 10

Davis Robert Todd

Davis Robert Todd

28 Dec 23

Davis Robert Todd

02 Aug 23

Davis Robert Todd

20 Jan 23

Davis Robert Todd

28 Jul 20

Annual Statement Of Changes In Beneficial Ownership Of Securities.

14 Feb 20

Dietler Cortlandt S

Dietler Cortlandt S

29 Nov 07

Dietler Cortlandt S

19 Sep 07

Dietler Cortlandt S

25 Aug 05

Dietler Cortlandt S

17 Aug 04

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

13 Jun 96

Gray Zarrell Thomas

Gray Zarrell Thomas

26 Aug 24

Gray Zarrell Thomas

26 Aug 24

Gray Zarrell Thomas

26 Aug 24

Gray Zarrell Thomas

26 Aug 24

Gray Zarrell Thomas

26 Aug 24

Hardie David C

Hardie David C

23 Jul 24

Hardie David C

12 Jul 11

Hardie David C

29 Nov 10

Hardie David C

29 Sep 09

Amended Statement Of Beneficial Ownership Of More Than 5%.

26 Jul 06

Hardie Steven

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

21 Jun 22

Hardie Steven

20 Dec 13

Hardie Steven

05 Jan 12

Hardie Steven

12 Jul 11

Hardie Steven

16 Mar 10

Hargrave Marjorie Anne

Hargrave Marjorie Anne

06 Sep 24

Hargrave Marjorie Anne

19 Apr 24

Hargrave Marjorie Anne

10 Dec 21

Hargrave Marjorie Anne

26 Jul 19

Hargrave Marjorie Anne

26 Jul 19

Heuvelen John Van

Heuvelen John Van

19 Aug 14

Heuvelen John Van

17 Feb 12

Heuvelen John Van

09 Sep 11

Heuvelen John Van

20 Dec 10

Heuvelen John Van

02 Feb 06

Lawrence Bryan H

Lawrence Bryan H

17 Jan 24

Lawrence Bryan H

20 Nov 23

Lawrence Bryan H

03 Jun 22

Lawrence Bryan H

21 Feb 17

Lawrence Bryan H

19 May 10

Lovell Heath Aaron

Lovell Heath Aaron

06 Sep 24

Lovell Heath Aaron

03 Apr 24

Lovell Heath Aaron

04 Apr 23

Lovell Heath Aaron

23 Mar 23

Lubar David J

Lubar David J

03 Nov 10

Lubar David J

06 Jan 10

Lubar David J

06 Jul 09

Lubar David J

06 Oct 08

Lubar David J

26 Apr 07

Lubar Sheldon B

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

18 Jan 12

Lubar Sheldon B

03 Jan 08

Lubar Sheldon B

03 Dec 07

Lubar Sheldon B

14 Feb 05

Lubar Sheldon B

01 Dec 03

Martin Lawrence D

Martin Lawrence D

08 Jun 17

Martin Lawrence D

21 Mar 17

Martin Lawrence D

11 Sep 14

Martin Lawrence D

19 Mar 08

Martin Lawrence D

31 Jan 08

Stabio Victor P

Stabio Victor P

04 Apr 16

Stabio Victor P

18 Dec 15

Stabio Victor P

17 Sep 09

Stabio Victor P

08 Jun 09

Stabio Victor P

29 Jan 08

Wesley Charles Ray Iv

Wesley Charles Ray Iv

08 Oct 24

Wesley Charles Ray Iv

17 Sep 24

Wesley Charles Ray Iv

10 Jun 22

Wesley Charles Ray Iv

29 Dec 20

Wesley Charles Ray Iv

15 Oct 19

Robert C. Hardie L.p.

26 Jul 06

Lubar Equity Fund, Llc

Amended Statement Of Beneficial Ownership Of More Than 5%.

03 Sep 24

Amended Statement Of Beneficial Ownership Of More Than 5%.

02 Apr 24

Lubar Equity Fund, Llc

24 Sep 09

Amended Statement Of Beneficial Ownership Of More Than 5%.

17 Jan 06

01 Apr 05

Yorktown Energy Partners Viii, L.p.

Quarterly Holdings Report

12 May 23

Quarterly Holdings Report

16 May 22

Quarterly Holdings Report

14 Feb 20

Quarterly Holdings Report

14 Aug 19

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

25 Sep 09

Hallador Alternative Assets Fund, Llc

Amended Statement Of Beneficial Ownership Of More Than 5%.

20 Jul 22

Hallador Alternative Assets Fund, Llc

09 May 16

Hallador Alternative Assets Fund, Llc

20 Dec 13

Amended Statement Of Beneficial Ownership Of More Than 5%.

06 Oct 09

Hallador Alternative Assets Fund, Llc

26 Jul 06

Extract Advisors Llc

13 Feb 24

26 Dec 23

Amended Statement Of Beneficial Ownership Of More Than 5%.

04 Feb 21

Amended Statement Of Beneficial Ownership Of More Than 5%.

17 Jan 20

11 Oct 19

Aegis Financial Corp

Quarterly Holdings Report

11 Aug 17

Quarterly Holdings Report

14 Feb 12

12 Feb 09

14 Feb 05

14 Feb 05

Yorktown Energy Partners Ii Lp

Amended Statement Of Beneficial Ownership Of More Than 5%.

30 Dec 05

Yorktown Energy Partners Ii Lp

22 Dec 05

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

27 Feb 98

Amended Statement Of Beneficial Ownership Of More Than 5%.

28 Jan 98

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

26 Nov 97

Yorktown Vi Associates Llc

14 Aug 19

14 Feb 18

Yorktown Vi Associates Llc

23 May 13

Yorktown Vi Associates Llc

24 Oct 12

Yorktown Vi Associates Llc

15 Aug 07

Yorktown Energy Partners Vi Lp

Quarterly Holdings Report

15 Nov 21

Riley Exploration Group, Llc

15 Oct 21

Riley Exploration Group, Llc

01 Mar 21

Yorktown Energy Partners Vi Lp

21 Feb 17

Yorktown Energy Partners Vi Lp

12 May 11

Blackrock Inc.

31 Jan 19

30 Jan 19

08 Jul 16

04 Feb 11

09 Feb 07

Hardie David C

Hardie David C

23 Jul 24

Hardie David C

12 Jul 11

Hardie David C

29 Nov 10

Hardie David C

29 Sep 09

Amended Statement Of Beneficial Ownership Of More Than 5%.

26 Jul 06

Hallador Inc

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

10 Apr 02

Hardie Steven

Acquired More Than 5% Ownership Of Any Class Of A Company's Securities.

21 Jun 22

Hardie Steven

20 Dec 13

Hardie Steven

05 Jan 12

Hardie Steven

12 Jul 11

Hardie Steven

16 Mar 10

Alj Investment Company, Llc

05 Jul 24

Yorktown Energy Partners Vii, L.p.

Quarterly Holdings Report

11 Aug 22

Riley Exploration Group, Llc

01 Mar 21

Quarterly Holdings Report

14 Feb 20

Yorktown Energy Partners Vii, L.p.

15 Mar 19

Quarterly Holdings Report

14 Feb 17

Lubar & Co., Inc

Quarterly Holdings Report

26 Oct 18

Quarterly Holdings Report

07 Feb 18

Quarterly Holdings Report

11 Aug 16

Quarterly Holdings Report

13 May 14

Quarterly Holdings Report

13 May 13