Form type | Sec Links | Description | Filing date | Reporting date |
---|---|---|---|---|
10-K | Report | Data | FORM 10-K | Apr 17, 2023 | Dec 31, 2022 |
10-K | Report | Data | FORM 10-K | Apr 15, 2022 | Dec 31, 2021 |
10-K | Report | Data | FORM 10-K | Mar 30, 2021 | Dec 31, 2020 |
10-K | Report | Data | FORM 10-K | Mar 10, 2020 | Dec 31, 2019 |
10-K | Report | Data | FORM 10-K | Mar 8, 2019 | Dec 31, 2018 |
10-K | Report | Data | 10-K | Mar 16, 2018 | Dec 31, 2017 |
10-K | Report | Data | 10-K | Apr 17, 2017 | Dec 31, 2016 |
10-K | Report | Data | 10-K | Jun 6, 2016 | Dec 31, 2015 |
10-K | Report | Data | 10-K | Oct 27, 2015 | Dec 31, 2014 |
10-K | Report | Data | 10-K | Mar 31, 2014 | Dec 31, 2013 |
10-K | Report | Data | Mar 26, 2013 | Dec 31, 2012 | |
10-K | Report | Data | Mar 29, 2012 | Dec 31, 2011 | |
10-K/A | Report | Sep 29, 2011 | Dec 31, 2010 | |
10-K | Report | CLEAN COAL 10DEC 10K | Mar 25, 2011 | Dec 31, 2010 |
10-K | Report | CLEAN COAL 09DEC 10K | Mar 29, 2010 | Dec 31, 2009 |