| Filed On | Filing |
|---|---|
| 05 Jan 2022 | SC 13G |
| 11 Feb 2021 | SC 13G |
| 29 Jan 2021 | SC 13G |
| 14 Feb 2020 | SC 13G |
| 18 Mar 2019 | HECK, CHRIS HGTXU 13G FILING |
| 04 Nov 2015 | SC 13G |
| 14 Feb 2012 | HUGOTON ROYALTY TRUST 13G |
| 18 Apr 2007 | SC 13G |
| 20 Feb 2007 | SC 13G |
| 10 Jun 1999 | SCHEDULE 13G |
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