| University Lands 19-33 #5942-105-40779 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 10,000 | Jul 18, 2008 | 1 | Sep 2023 |
| University Land 30-30 #6042-105-40679 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Jul 9, 2008 | 1 | Oct 2021 |
| Henderson Trust #240142-105-39919 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 7,325 | Jun 23, 2006 | 1 | Mar 2026 |
| Henderson Trust O #142-105-34777 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,780 | Feb 23, 2006 | 3 | Apr 2026 |
| Hutchings Sealy #142-105-34773 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,250 | Jan 27, 2006 | 2 | Mar 2026 |
| Henderson Trust #242-105-35863 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,050 | Aug 15, 2005 | 3 | Mar 2026 |
| University 16-33 #342-105-39201 | WTG Exploration only | CrockettHowards Creek (Canyon) | ActiveGas | 8,875 | Jan 29, 2004 | 1 | Apr 2026 |
| University Land 30-30 #5542-105-39083 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,800 | Aug 26, 2003 | 1 | Oct 2021 |
| University Land 17-33 #5242-105-39064 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,800 | Jun 12, 2003 | 1 | Feb 2019 |
| University Land 17-33 #5342-105-39065 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,800 | Jun 12, 2003 | 1 | Jan 2019 |
| University Land 19-30S #5042-105-38920 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,950 | Oct 7, 2002 | 1 | Oct 2021 |
| University Land 19-30 #4942-105-38918 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,800 | Sep 25, 2002 | 1 | Oct 2021 |
| University 16-33 #142-105-32546 | WTG Exploration only | CrockettHowards Creek (Canyon) | PluggedGas | 8,900 | Dec 3, 1999 | 2 | Aug 2020 |
| University 18-33 Gas Unit North #4542-105-37461 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,850 | Nov 18, 1996 | 1 | Oct 2021 |
| University Land 31-30 #4842-105-37447 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,850 | Nov 14, 1996 | 1 | Oct 2021 |
| University Land 30-30A #4642-105-37041 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Sep 13, 1995 | 1 | Oct 2021 |
| University 20-30A #4742-105-37042 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Sep 13, 1995 | 1 | Oct 2021 |
| University Land 30-30 #4442-105-37030 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,700 | Aug 24, 1995 | 1 | Oct 2021 |
| University Land 20-30 #4242-105-36766 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,200 | Jan 9, 1995 | 1 | Oct 2021 |
| University Land 30-30A #4142-105-36760 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,850 | Jan 5, 1995 | 1 | Oct 2021 |
| University Land 31-30 #4342-105-36761 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,850 | Jan 4, 1995 | 1 | Oct 2021 |
| University Land 30-30 #4042-105-36749 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,900 | Dec 21, 1994 | 1 | Jan 2020 |
| University Block 33 17 & 18 G.U. #3842-105-36015 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,000 | Jan 20, 1993 | 3 | Jan 2022 |
| Henderson Trust #1U42-105-32685 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,837 | Dec 3, 1992 | 2 | Mar 2026 |
| Henderson Trust D #1 U42-105-33365 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,150 | Oct 27, 1992 | 2 | Mar 2026 |
| University 18-33 Gas Unit North #2342-105-33501 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,000 | Oct 26, 1992 | 2 | Jan 2022 |
| Henderson Trust #342-105-36145 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 7,372 | Aug 20, 1992 | 1 | Mar 2026 |
| Henderson Trust #442-105-36146 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 7,331 | Aug 20, 1992 | 1 | Sep 2025 |
| University Land 30-30 #3342-105-36030 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,200 | Oct 16, 1991 | 1 | Oct 2021 |
| University Land 30-30A #3642-105-36029 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,400 | Oct 15, 1991 | 1 | Oct 2021 |
| University Land 20-30 #3242-105-36019 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,350 | Oct 7, 1991 | 1 | Oct 2021 |
| University 18-33 Gas Unit North #3442-105-36012 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,000 | Oct 3, 1991 | 2 | Jan 2022 |
| Henderson 35-6 #342-105-34783 | Red Stag Operating LLC only | CrockettUniversity 31 (Strawn-Detrital) | ActiveGas | 9,246 | Oct 25, 1990 | 3 | Apr 2026 |
| University Land 17-33 #2542-105-35111 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,200 | Aug 26, 1985 | 2 | May 2019 |
| Henderson Trust N #142-105-34778 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,670 | Mar 20, 1984 | 1 | Mar 2026 |
| University Land 21-30 #1942-105-32707 | Harrison Interests Ltd. only | CrockettHowards Creek (Canyon) | PluggedGas | 9,500 | Sep 19, 1983 | 2 | Mar 2004 |
| Henderson Trust E #142-105-33978 | Apache Corporation only | CrockettHowards Creek (Canyon) | ActiveGas | 9,170 | Apr 6, 1982 | 1 | Mar 2026 |
| University 31-6 W #342-105-33615 | Thompson J. Cleo only | CrockettHowards Creek (Canyon) | PluggedGas | 8,900 | Aug 25, 1981 | 1 | Oct 2012 |
| Henderson 30 #142-105-33474 | Red Stag Operating LLC only | CrockettHowards Creek (Canyon) | ActiveGas | 10,350 | Jun 18, 1981 | 1 | Apr 2026 |
| University Land 19-30 #2242-105-33291 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,400 | Feb 24, 1981 | 1 | Oct 2021 |
| University Land 32-30 #2142-105-33273 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,400 | Feb 5, 1981 | 1 | Oct 2021 |
| University Land 3-32 #18A42-105-32541 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,200 | Nov 14, 1979 | 1 | Jan 2022 |
| University Land 30-30A #1742-105-32459 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 9,500 | Sep 19, 1979 | 1 | Oct 2021 |
| University 20-30A #1142-105-32171 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,800 | Dec 4, 1978 | 1 | Oct 2021 |
| University Block 33 17 & 18 G.U. #1042-105-32156 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,704 | Nov 27, 1978 | 1 | Jan 2022 |
| University 29-30A #742-105-32118 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Nov 1, 1978 | 1 | Oct 2021 |
| University Land 20-30 #642-105-32119 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Nov 1, 1978 | 1 | Jun 2021 |
| University 31-30A #542-105-32113 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 7,000 | Oct 30, 1978 | 1 | Oct 2021 |
| University 31-30 #442-105-32114 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,713 | Oct 30, 1978 | 1 | Oct 2021 |
| University Land 29-30 #142-105-32101 | DJH Oil & Gas LLC only | CrockettHowards Creek (Canyon) | PluggedGas | 6,900 | Oct 17, 1978 | 1 | Oct 2021 |