| Shell-Clayton #2012R42-105-37709 | Zachry Oil and Gas Properties | CrockettOzona NE. (Canyon 7520) | ActiveGas | 7,810 | May 21, 1997 | 1 | Aug 2026 |
| Mayer Ranch #1442-413-31636 | Zachry Oil and Gas Properties | SchleicherMayer Ranch (Canyon) | ActiveGas | 8,354 | May 3, 1996 | 2 | Aug 2026 |
| Reed #142-371-36131 | Zachry Oil and Gas Properties | PecosChenot (Wolfcamp) | PluggedOil | 5,300 | Jan 5, 1989 | 1 | Oct 1999 |
| Mayer Ranch #1942-435-33441 | Zachry Oil and Gas Properties | SuttonMayer Ranch (Canyon) | PluggedGas | 8,700 | Oct 21, 1988 | 3 | May 1996 |
| Mayer Ranch #1842-435-33422 | Zachry Oil and Gas Properties | SuttonMayer Ranch (Canyon) | ActiveGas | 8,300 | Jun 24, 1988 | 2 | Aug 2026 |
| Mayer Ranch #1642-413-31639 | Zachry Oil and Gas Properties | SchleicherSawyer (Strawn North) | ActiveGas | 8,317 | Aug 13, 1987 | 1 | Aug 2026 |
| Mayer Ranch #1742-413-31637 | Zachry Oil and Gas Properties | SchleicherMayer Ranch (Canyon) | ActiveGas | 8,312 | Aug 11, 1987 | 2 | Aug 2026 |
| Mayer Ranch #1542-435-33364 | Zachry Oil and Gas Properties | SuttonMayer Ranch (Canyon) | ActiveGas | 8,310 | Aug 11, 1987 | 3 | Aug 2026 |
| Mayer Ranch #1342-435-33355 | Zachry Oil and Gas Properties | SuttonMayer Ranch (Canyon) | ActiveGas | 8,228 | Jul 24, 1987 | 2 | Aug 2026 |
| Noelke a #242-235-32723 | Zachry Oil and Gas Properties | IrionMertzon (Canyon) | PluggedOil | 7,200 | Dec 30, 1985 | 1 | Feb 2002 |
| Texaco 213 #442-235-32693 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,750 | Nov 8, 1985 | 1 | Oct 2022 |
| Texaco 215 #442-235-32694 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,750 | Nov 8, 1985 | 1 | Oct 2022 |
| Texaco 213 #342-235-32685 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,750 | Oct 31, 1985 | 1 | Oct 2022 |
| Texaco 215 #342-235-32686 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,620 | Oct 31, 1985 | 1 | Oct 2022 |
| Noelke a #142-235-32582 | Zachry Oil and Gas Properties | IrionMertzon (Canyon) | PluggedOil | 7,200 | May 7, 1985 | 1 | Feb 2002 |
| Texaco 217 #242-235-32494 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,700 | Dec 31, 1984 | 1 | Oct 2022 |
| Texaco 215 #242-235-32495 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,700 | Dec 31, 1984 | 1 | Oct 2022 |
| Texaco 213 #242-235-32496 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,700 | Dec 31, 1984 | 1 | Oct 2022 |
| Texaco 213 #142-235-32388 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,670 | Aug 22, 1984 | 1 | Oct 2022 |
| Texaco 217 #142-235-32389 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Temporarily abandonedOil | 6,670 | Aug 22, 1984 | 1 | Oct 2022 |
| Texaco 215 #142-235-32390 | Zachry Oil and Gas Properties | IrionSpraberry (Trend Area) | Shut inOil | 6,670 | Aug 22, 1984 | 1 | Oct 2022 |
| Probandt #242-451-31405 | Zachry Oil and Gas Properties | Tom GreenProbandt (Canyon) | PluggedOil | 7,400 | Apr 10, 1984 | 1 | Oct 1999 |
| Toyah C #142-389-31448 | Zachry Oil and Gas Properties | ReevesToyah (Devonian) | PluggedGas | 15,300 | Dec 6, 1983 | 1 | — |
| Reed J.C. Estate #10942-431-31318 | Zachry Oil and Gas Properties | SterlingSterling N. (Canyon Sd.) | PluggedOil | 9,000 | May 23, 1983 | 1 | Sep 1994 |
| Reynolds a #142-413-31315 | Zachry Oil and Gas Properties | SchleicherKlatt (Canyon) | PluggedGas | 8,000 | Apr 15, 1983 | 1 | Jun 2002 |
| Bruton 27 #142-413-31243 | Zachry Oil and Gas Properties | SchleicherGeneva (Ellenburger) | PluggedGas | 7,790 | Apr 13, 1982 | 1 | Apr 2001 |
| Murphy -a- #742-235-31916 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,406 | Mar 30, 1982 | 1 | Aug 2026 |
| Murphy -B- #342-235-31917 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | Shut inOil | 6,550 | Mar 19, 1982 | 1 | Oct 2022 |
| XQZ C #142-451-30540 | Zachry Oil and Gas Properties | Tom GreenXQZ (Palo Pinto) | PluggedOil | 6,250 | May 1, 1980 | 2 | Jun 2000 |
| University -31- E #142-475-32005 | Zachry Oil and Gas Properties | WardWar-Wink (Cherry Canyon 6570) | PluggedOil | 7,200 | Dec 20, 1979 | 1 | — |
| XQZ B #142-451-30484 | Zachry Oil and Gas Properties | Tom GreenXQZ (Palo Pinto) | PluggedOil | 6,250 | Jun 11, 1979 | 1 | Jun 2000 |
| Murphy -B- #242-235-31365 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | PluggedOil | 7,000 | Mar 23, 1979 | 1 | Oct 2022 |
| Murphy -B- #142-235-31361 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | Shut inOil | 6,570 | Mar 9, 1979 | 1 | Oct 2022 |
| Ogden #142-413-30736 | Zachry Oil and Gas Properties | SchleicherHenry-Speck (Canyon) | ActiveGas | 7,200 | Sep 21, 1978 | 1 | Feb 2026 |
| Mayer Ranch #1242-413-30718 | Zachry Oil and Gas Properties | SchleicherMayer Ranch (Canyon) | ActiveGas | 7,320 | Aug 1, 1978 | 1 | Aug 2026 |
| Mayer Ranch #1042-413-30422 | Zachry Oil and Gas Properties | SchleicherMayer Ranch (Canyon) | ActiveGas | 8,456 | Sep 26, 1977 | 1 | Aug 2026 |
| King #142-165-31191 | Zachry Oil and Gas Properties | GainesLoop NE. (Yates) | PluggedGas | 3,500 | Aug 4, 1977 | 1 | — |
| Clayton #142-105-10741 | Zachry Oil and Gas Properties | CrockettOzona NE. (Canyon 7520) | Temporarily abandonedGas | 8,013 | — | 0 | — |
| Sinclair-Clayton #11042-105-11036 | Zachry Oil and Gas Properties | CrockettOzona NE. (Canyon 7520) | Temporarily abandonedGas | 7,820 | — | 0 | — |
| Sinclair-Clayton #11142-105-11037 | Zachry Oil and Gas Properties | CrockettOzona NE. (Canyon 7520) | ActiveGas | 7,520 | — | 0 | — |
| Shell-Clayton #11242-105-11039 | Zachry Oil and Gas Properties | CrockettOzona NE. (Canyon 7520) | ActiveGas | 7,821 | — | 0 | — |
| Murphy -a- #242-235-30250 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,370 | — | 0 | — |
| Murphy -a- #142-235-30251 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,350 | — | 0 | — |
| Murphy -a- #342-235-30364 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,340 | — | 0 | — |
| Murphy -a- #442-235-30369 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,300 | — | 0 | — |
| Murphy -a- #542-235-30402 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,320 | — | 0 | — |
| Murphy -a- #642-235-30411 | Zachry Oil and Gas Properties | IrionDow-Mayer (Spraberry Dean) | ActiveOil | 6,300 | — | 0 | — |
| Noelke M.B. et al #142-235-30696 | Zachry Oil and Gas Properties | IrionMonument (Spraberry) | PluggedOil | — | — | 0 | — |
| Shell-Clayton #142-413-10412 | Zachry Oil and Gas Properties | SchleicherOzona NE. (Canyon 7520) | Temporarily abandonedGas | 7,816 | — | 0 | — |
| Mayer Ranch #942-413-30376 | Zachry Oil and Gas Properties | SchleicherMayer Ranch (Canyon) | ActiveGas | 8,300 | — | 0 | — |