Hallador Energy Co SEC filings HNRG
Hallador Energy Co has 881 filings in SEC EDGAR's recent list, going back to May 12, 1995. Its latest annual report, Form 10-K, was filed on Mar 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 8, 2026 (material agreement, new debt, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 8, 2026 | Oct 7, 2026 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Sep 17, 2026 | Sep 15, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 14, 2026 | Aug 11, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2026 | Aug 10, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 26, 2026 | Jun 25, 2026 |
| 8-K |
Current report
Officer or director change
|
Jun 11, 2026 | Jun 8, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 5, 2026 | Jun 4, 2026 |
| 8-K | Current report | Jun 3, 2026 | May 28, 2026 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jun 2, 2026 | May 30, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 29, 2026 | May 27, 2026 |
| 8-K |
Current report
Officer or director change, Other events
|
May 6, 2026 | May 1, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2026 | Apr 9, 2026 |
| 8-K | Current report | Mar 27, 2026 | Mar 25, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2026 | Mar 12, 2026 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Mar 10, 2026 | Mar 5, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 9, 2026 | Mar 6, 2026 |
| 8-K |
Current report
Agreement ended, Other events
|
Jan 15, 2026 | Jan 13, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 6, 2026 | Dec 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 4, 2025 | Dec 1, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2025 | Nov 10, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2025 | Aug 11, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jun 4, 2025 | Jun 4, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 2, 2025 | May 29, 2025 |
| 8-K |
Current report
Other events
|
May 22, 2025 | May 19, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 17, 2025 | Mar 17, 2025 |
| 8-K |
Current report
Other events
|
Jan 7, 2025 | Jan 2, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 3, 2024 | Sep 27, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Jul 3, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2024 | May 30, 2024 |
| 8-K |
Current report
Results of operations
|
May 7, 2024 | May 6, 2024 |
| 8-K |
Current report
Other events
|
Mar 28, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 25, 2024 | Mar 25, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2024 | Mar 13, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 23, 2024 | Feb 23, 2024 |
| 8-K |
Current report
Material agreement
|
Dec 18, 2023 | Dec 18, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2023 | Nov 6, 2023 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2023 | Sep 5, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 7, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 3, 2023 | Aug 3, 2023 |
| 8-K |
Current report
Other events
|
Jul 19, 2023 | Jul 19, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2023 | Jun 1, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 8, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 17, 2023 | Mar 16, 2023 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Jan 6, 2023 | Oct 21, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 15, 2022 | Nov 14, 2022 |
| 8-K |
Current report
Acquisition or sale of assets, Regulation FD disclosure
|
Oct 21, 2022 | Oct 21, 2022 |
| 8-K |
Current report
Material agreement
|
Oct 4, 2022 | Sep 28, 2022 |
| 8-K |
Current report
Auditor change
|
Oct 3, 2022 | Sep 27, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 16, 2022 | Aug 15, 2022 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 11, 2022 | Aug 5, 2022 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 4, 2022 | Jul 29, 2022 |
| 8-K |
Current report
Other events
|
Jul 8, 2022 | Jul 7, 2022 |
| 8-K |
Current report
Unregistered share sale, Shareholder vote results
|
Jun 15, 2022 | Jun 9, 2022 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure
|
May 6, 2022 | May 2, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 29, 2022 | Mar 28, 2022 |
| 8-K/A |
Amended current report
Material agreement, Regulation FD disclosure
|
Mar 11, 2022 | Feb 14, 2022 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Feb 18, 2022 | Feb 14, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2021 | Nov 8, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2021 | Aug 9, 2021 |
| 8-K |
Current report
Other events
|
Jul 29, 2021 | Jul 23, 2021 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 3, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Results of operations
|
May 4, 2021 | May 4, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2021 | Mar 9, 2021 |
| 8-K |
Current report
Other events
|
Dec 22, 2020 | Dec 17, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2020 | Nov 3, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Oct 14, 2020 | Oct 9, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2020 | Aug 3, 2020 |
| 8-K |
Current report
Results of operations
|
May 11, 2020 | May 11, 2020 |
| 8-K |
Current report
Listing notice
|
May 6, 2020 | Apr 30, 2020 |
| 8-K |
Current report
Other events
|
Apr 29, 2020 | Apr 29, 2020 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Apr 16, 2020 | Apr 15, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 10, 2020 | Mar 9, 2020 |
| 8-K |
Current report
Other events
|
Jan 21, 2020 | Jan 20, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2019 | Nov 4, 2019 |
| 8-K |
Current report
Material agreement
|
Oct 3, 2019 | Oct 2, 2019 |
| 8-K |
Current report
Other events
|
Aug 13, 2019 | Aug 12, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2019 | Aug 5, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 29, 2019 | May 29, 2019 |
| 8-K |
Current report
Other events
|
May 15, 2019 | May 14, 2019 |
| 8-K |
Current report
Results of operations
|
May 8, 2019 | May 6, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 19, 2019 | Mar 13, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2019 | Mar 11, 2019 |
| 8-K |
Current report
Other events
|
Nov 13, 2018 | Nov 12, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2018 | Nov 5, 2018 |
| 8-K |
Current report
Auditor change
|
Oct 4, 2018 | Oct 1, 2018 |
| 8-K | Current report | Oct 3, 2018 | Sep 14, 2018 |
| 8-K |
Current report
Other events
|
Aug 16, 2018 | Aug 15, 2018 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Aug 7, 2018 | Aug 6, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2018 | May 23, 2018 |
| 8-K |
Current report
New debt
|
May 22, 2018 | May 21, 2018 |
| 8-K |
Current report
Other events
|
May 15, 2018 | May 14, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 15, 2018 | Mar 9, 2018 |
| 8-K |
Current report
Other events
|
Jan 5, 2018 | Jan 5, 2018 |
| 8-K |
Current report
Officer or director change
|
Jun 9, 2017 | Jun 6, 2017 |
| 8-K |
Current report
Shareholder vote results, Other events
|
May 31, 2017 | May 25, 2017 |
| 8-K |
Current report
Officer or director change
|
May 17, 2017 | May 16, 2017 |
| 8-K |
Current report
Other events
|
Nov 15, 2016 | Nov 14, 2016 |
| 8-K |
Current report
Other events
|
Aug 18, 2016 | Aug 17, 2016 |
| 8-K |
Current report
Other events
|
May 12, 2016 | May 11, 2016 |
| 8-K |
Current report
Other events
|
May 9, 2016 | May 9, 2016 |
| 8-K |
Current report
Other events
|
Apr 1, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Mar 18, 2016 | Mar 14, 2016 |
| 8-K |
Current report
Results of operations
|
Mar 11, 2016 | Mar 11, 2016 |
| 8-K |
Current report
Other events
|
Nov 19, 2015 | Nov 16, 2015 |
| 8-K |
Current report
Other events
|
Aug 20, 2015 | Aug 19, 2015 |
| 8-K |
Current report
Other events
|
Jul 27, 2015 | Jul 27, 2015 |
| 8-K |
Current report
Other events
|
May 28, 2015 | May 28, 2015 |
| 8-K |
Current report
Other events
|
Mar 18, 2015 | Mar 17, 2015 |
| 8-K | Current report | Feb 20, 2015 | Feb 12, 2015 |
| 8-K/A | Amended current report | Oct 27, 2014 | Aug 29, 2014 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Regulation FD disclosure
|
Sep 3, 2014 | Aug 29, 2014 |
| 8-K |
Current report
Other events
|
Aug 18, 2014 | Aug 15, 2014 |
| 8-K |
Current report
Material agreement
|
Jul 8, 2014 | Jul 1, 2014 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2014 | Feb 28, 2014 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 6, 2014 | Feb 1, 2014 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2013 | Nov 1, 2013 |
| 8-K |
Current report
Other events
|
Oct 16, 2013 | Oct 15, 2013 |
| 8-K |
Current report
Other events
|
Aug 14, 2013 | Aug 13, 2013 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2013 | Aug 2, 2013 |
| 8-K |
Current report
Other events
|
Jul 15, 2013 | Jul 15, 2013 |
| 8-K |
Current report
Other events
|
May 24, 2013 | May 24, 2013 |
| 8-K |
Current report
Other events
|
Apr 5, 2013 | Apr 5, 2013 |
| 8-K |
Current report
Other events
|
Mar 6, 2013 | Mar 5, 2013 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2013 | Mar 1, 2013 |
| 8-K |
Current report
Other events
|
Dec 4, 2012 | Nov 29, 2012 |
| 8-K |
Current report
Other events
|
Nov 20, 2012 | Nov 19, 2012 |
| 8-K |
Current report
Officer or director change
|
Nov 5, 2012 | Oct 31, 2012 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2012 | Nov 1, 2012 |
| 8-K |
Current report
Agreement ended, New debt, Change to shareholder rights, Other events
|
Oct 18, 2012 | Oct 18, 2012 |
| 8-K |
Current report
Other events
|
Aug 22, 2012 | Aug 21, 2012 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2012 | Jul 31, 2012 |
| 8-K |
Current report
Officer or director change
|
Jul 31, 2012 | Jul 31, 2012 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 28, 2012 | Mar 27, 2012 |
| 8-K |
Current report
Other events
|
Mar 7, 2012 | Mar 6, 2012 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 26, 2012 | Jan 25, 2012 |
| 8-K |
Current report
Other events
|
Nov 16, 2011 | Nov 15, 2011 |
| 8-K |
Current report
Officer or director change
|
Aug 10, 2011 | Aug 9, 2011 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 13, 2011 | Jun 9, 2011 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 27, 2011 | May 25, 2011 |
| 8-K |
Current report
Other events
|
May 12, 2011 | May 11, 2011 |
| 8-K |
Current report
Officer or director change
|
Jan 6, 2011 | Jan 4, 2011 |
| 8-K |
Current report
Other events
|
Nov 18, 2010 | Nov 14, 2010 |
| 8-K |
Current report
Other events
|
Aug 25, 2010 | Aug 23, 2010 |
| 8-K |
Current report
Officer or director change
|
Jun 2, 2010 | May 27, 2010 |
| 8-K |
Current report
Other events
|
May 21, 2010 | May 19, 2010 |
| 8-K |
Current report
Other events
|
Jan 25, 2010 | Jan 22, 2010 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 31, 2009 | Dec 24, 2009 |
| 8-K |
Current report
Officer or director change
|
Dec 21, 2009 | Dec 16, 2009 |
| 8-K |
Current report
Other events
|
Oct 6, 2009 | Sep 25, 2009 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Officer or director change, Other events
|
Sep 18, 2009 | Sep 18, 2009 |
| 8-K |
Current report
Material agreement
|
Dec 17, 2008 | Dec 12, 2008 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change
|
Jul 25, 2008 | Jul 21, 2008 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Oct 9, 2007 | Oct 5, 2007 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Sep 20, 2007 | Jul 31, 2006 |
| 8-K |
Current report
Material agreement, New debt, Officer or director change
|
Jul 2, 2007 | Jun 28, 2007 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Oct 16, 2006 | Jul 31, 2006 |
| 8-K |
Current report
Material agreement
|
Aug 2, 2006 | Jul 31, 2006 |
| 8-K |
Current report
Other events
|
Jun 5, 2006 | Jun 5, 2006 |
| 8-K |
Current report
Acquisition or sale of assets
|
May 11, 2006 | May 11, 2006 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 25, 2006 | Apr 19, 2006 |
| 8-K/A | Amended current report | Mar 17, 2006 | Dec 31, 2005 |
| 8-K |
Current report
Unregistered share sale
|
Feb 27, 2006 | Feb 22, 2006 |
| 8-K |
Current report
Other events
|
Jan 6, 2006 | Jan 5, 2006 |
| 8-K |
Current report
Material agreement
|
Jan 3, 2006 | Dec 31, 2005 |
| 8-K/A |
Amended current report
Unregistered share sale
|
Dec 27, 2005 | Dec 20, 2005 |
| 8-K |
Current report
Unregistered share sale
|
Dec 27, 2005 | Dec 20, 2005 |
| 8-K |
Current report
Acquisition or sale of assets
|
Oct 6, 2004 | Sep 30, 2004 |
| 8-K | Current report | Aug 11, 2004 | Aug 10, 2004 |
| 8-K | Current report | Jun 30, 2003 | Jun 24, 2003 |
| 8-K | Current report | Jul 31, 2002 | Jul 24, 2002 |
| 8-K | Current report | Jul 23, 1997 | Jul 21, 1997 |
Showing 175 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- HNRG (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- CO
- Headquarters
- Terre Haute, IN
- SEC filer status
- Accelerated filer
- SEC CIK
- 788965
- Former names
- HALLADOR PETROLEUM CO (until Dec 21, 2009)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.