| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13D/A | Report | SC 13D/A | Apr 5, 2024 | |
| SC 13D | Report | SC 13D | Nov 14, 2022 | |
| SC 13G/A | Report | SC 13G/A | Feb 16, 2021 | |
| SC 13G/A | Report | AMENDMENT NO. 1 | Feb 13, 2020 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Dec 26, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Jul 19, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Jul 16, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Jul 8, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Jun 27, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | May 21, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Apr 17, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Apr 4, 2019 | |
| SC 13D/A | Report | CHAPARRAL ENERGY, INC. | Mar 20, 2019 | |
| SC 13G | Report | SCHEDULE 13G | Feb 14, 2019 | |
| SC 13G/A | Report | Dec 18, 2018 | ||
| SC 13D | Report | SC 13D | Oct 26, 2018 | |
| SC 13D | Report | SC 13D | Jan 8, 2018 | |
| SC 13G | Report | SC 13G | Jan 8, 2018 |