| Brown-Mauch Unit #142-409-33082 | Welderxp Ltd. only | San PatricioPlymouth | Shut inOil | 5,917 | Sep 30, 2018 | 1 | — |
| Welder Efh Unit #642-409-33077 | Welderxp Ltd. only | San PatricioPlymouth | Shut inOil | 6,000 | Nov 30, 2017 | 1 | Dec 2020 |
| Welder Efh #542-409-33048 | Welderxp Ltd. only | San PatricioPlymouth | Shut inOil | 6,650 | Jan 18, 2017 | 3 | Dec 2020 |
| Cryer-Douglas Unit #142-409-33001 | Welderxp Ltd. only | San PatricioPlymouth | Shut inOil | 7,001 | Oct 24, 2014 | 4 | Dec 2014 |
| Welder Efh #442-409-33032 | Welderxp Ltd. only | San PatricioPlymouth | Shut inOil | 6,650 | May 27, 2014 | 2 | Dec 2020 |
| Welder E. H. -C- #10R42-409-01563 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 5,648 | Jul 31, 2013 | 1 | Apr 2026 |
| Welder E. H. -C- #17R42-409-01268 | McGowan Working Partners Inc. only | San PatricioPlymouth | ActiveOil | 5,653 | Jun 25, 2013 | 2 | Apr 2026 |
| Welder E. H. -C- #3842-409-02142 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 5,647 | Jun 19, 2013 | 1 | Apr 2026 |
| Welder E. H. -C- #6142-409-01819 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 5,798 | Apr 26, 2013 | 1 | Apr 2026 |
| E. H. Welder C #13542-409-01589 | McGowan Working Partners Inc. only | San PatricioPlymouth (6100 Sand) | ActiveOil | 6,162 | Apr 23, 2013 | 4 | Apr 2026 |
| E. H. Welder C #97W42-409-01265 | McGowan Working Partners Inc. only | San PatricioPlymouth | ActiveInjection | 5,875 | Apr 9, 2013 | 3 | Jul 2011 |
| Welder E. H. -C- #10542-409-01885 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 6,856 | Mar 26, 2013 | 2 | Apr 2026 |
| Welder E. H. -C- #4442-409-01864 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 5,920 | Mar 15, 2013 | 1 | Apr 2026 |
| Welder E. H. -C- #1442-409-01557 | McGowan Working Partners Inc. only | San PatricioPlymouth | PluggedOil | 5,800 | Jan 7, 2013 | 2 | Apr 2026 |
| Welder E. H. -C- #8042-409-01898 | McGowan Working Partners Inc. only | San PatricioPlymouth | ActiveInjection | 5,750 | Jun 6, 2012 | 1 | Apr 2026 |
| Welder E. H. -C- #8942-409-01842 | McGowan Working Partners Inc. only | San PatricioPlymouth | ActiveInjection | 5,778 | May 11, 2012 | 1 | Apr 2026 |
| Welder E. H. C #16942-409-32493 | McGowan Working Partners Inc. only | San PatricioPlymouth (5390) | ActiveOil | 5,950 | Mar 17, 2004 | 4 | Apr 2026 |
| Hunt J. M. #1142-409-31458 | Wallis Energy Inc. only | San PatricioPlymouth | ActiveOil | 6,820 | Oct 8, 2001 | 5 | Apr 2026 |
| Dimmick A. J. #12B42-409-32365 | Penn Virginia Oil & Gas Corp. only | San PatricioPlymouth East (5300 Sand) | PluggedOil | 6,700 | Dec 6, 1999 | 4 | Oct 2001 |
| Welder E. H. -C- #16642-409-32044 | McGowan Working Partners Inc. only | San PatricioPlymouth (3550) | Temporarily abandonedGas | 7,210 | Jul 1, 1998 | 4 | Apr 2026 |
| Welder E.H. -C- #5642-409-01558 | McGowan Working Partners Inc. only | San PatricioPlymouth (6000 -B- Sand) | ActiveOil | 6,151 | Jan 30, 1996 | 1 | Apr 2026 |
| Welder E. H. -C- #16442-409-31681 | McGowan Working Partners Inc. only | San PatricioPlymouth (6000 -B- Sand) | Temporarily abandonedGas | 7,215 | May 1, 1995 | 6 | Apr 2026 |
| Welder E. H. -C- #10642-409-01272 | McGowan Working Partners Inc. only | San PatricioPlymouth | Not on scheduleOil | 5,884 | Oct 10, 1994 | 1 | — |
| Welder E.H. C #15142-409-01561 | McGowan Working Partners Inc. only | San PatricioPlymouth (6000 -A-) | Temporarily abandonedGas | 6,149 | Jun 23, 1994 | 1 | Apr 2026 |
| Welder E. H. C #11342-409-01572 | McGowan Working Partners Inc. only | San PatricioPlymouth (3600 A) | Temporarily abandonedGas | 9,510 | Mar 17, 1994 | 1 | Jan 1996 |
| Welder E.H. C #14242-409-01592 | McGowan Working Partners Inc. only | San PatricioPlymouth (6000) | Shut inOil | 6,844 | Dec 17, 1993 | 1 | Apr 2026 |
| Dimmick A.J. #1042-409-32037 | Penn Virginia Oil & Gas L.P. only | San PatricioPlymouth | PluggedOil | 7,600 | Mar 20, 1991 | 3 | Apr 2000 |
| Hunt J. M. #942-409-01453 | Wallis Energy Inc. only | San PatricioPlymouth | ActiveInjection | 6,966 | Nov 1, 1989 | 3 | Apr 2026 |
| Hunt J. M. #242-409-01446 | Wallis Energy Inc. only | San PatricioPlymouth | Shut inOil | 5,611 | Oct 11, 1989 | 1 | Apr 2026 |
| Welder E. H. -C- #16542-409-31856 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 7,212 | Apr 24, 1987 | 3 | Apr 2026 |
| Welder E. H. -C- #16742-409-32080 | McGowan Working Partners Inc. only | San PatricioPlymouth | PluggedOil | 7,300 | Sep 17, 1985 | 1 | Apr 2026 |
| Welder E. H. -C- #13642-409-01590 | McGowan Working Partners Inc. only | San PatricioPlymouth | ActiveOil | 6,154 | Feb 24, 1983 | 2 | Apr 2026 |
| Chiltipin State Tract #3 #442-409-01796 | Green Exploration Company only | San PatricioPlymouth | ActiveInjection | 5,617 | Oct 5, 1982 | 2 | Sep 2017 |
| Bevly W. M. #1D42-409-01916 | Diversified O&G Prod. Co. Inc. only | San PatricioPlymouth | PluggedOil | 5,650 | Apr 16, 1982 | 1 | Feb 1997 |
| Welder E.H. C #1542-409-01565 | EOG Resources Inc. only | San PatricioPlymouth (5500) | PluggedGas | 5,626 | Dec 7, 1981 | 1 | Sep 1994 |
| Welder E.A. C #4642-409-01570 | McGowan Working Partners Inc. only | San PatricioPlymouth (5150) | Temporarily abandonedGas | 5,647 | Dec 1, 1981 | 1 | — |
| Welder E. H. C #842-409-01556 | EOG Resources Inc. only | San PatricioPlymouth (5410) | PluggedGas | 5,640 | Sep 24, 1981 | 1 | Nov 1994 |
| Chiltipin Creek St TR 3 #242-409-01795 | Green Exploration Company only | San PatricioPlymouth (5120) | Shut inOil | 5,612 | Aug 14, 1981 | 1 | Aug 2017 |
| Welder E. H. -C- #13442-409-01559 | McGowan Working Partners Inc. only | San PatricioPlymouth | Shut inOil | 6,162 | Aug 13, 1981 | 1 | Apr 2026 |
| Hunt J. M. #5D42-409-01449 | Wallis Energy Inc. only | San PatricioPlymouth | PluggedOil | 5,630 | Jan 28, 1980 | 1 | Apr 2026 |
| Welder E.H. C #14442-409-01560 | McGowan Working Partners Inc. only | San PatricioPlymouth | Temporarily abandonedGas | 6,150 | Feb 23, 1979 | 2 | Apr 2026 |
| Welder E.H. C #1142-409-01580 | EOG Resources Inc. only | San PatricioPlymouth (3550) | PluggedGas | 5,651 | Oct 18, 1978 | 1 | — |
| Welder E. H. -C- #1242-409-01564 | McGowan Working Partners Inc. only | San PatricioPlymouth | PluggedOil | 5,650 | Apr 7, 1978 | 1 | Apr 2026 |
| Hunt J. M. #1042-409-01444 | Wallis Energy Inc. only | San PatricioPlymouth | Shut inOil | 2,180 | — | 0 | — |
| Hunt J. M. #142-409-01445 | Wallis Energy Inc. only | San PatricioPlymouth | Shut inOil | 5,601 | — | 0 | — |
| Hunt J. M. #342-409-01447 | Wallis Energy Inc. only | San PatricioPlymouth | ActiveOil | 5,612 | — | 0 | — |
| Hunt J. M. #442-409-01448 | Wallis Energy Inc. only | San PatricioPlymouth | PluggedOil | — | — | 0 | — |
| Hunt J. M. #642-409-01450 | Wallis Energy Inc. only | San PatricioPlymouth | Shut inOil | 5,625 | — | 0 | — |
| Hunt J. M. #742-409-01451 | Wallis Energy Inc. only | San PatricioPlymouth | PluggedOil | — | — | 0 | — |
| Hunt J. M. #842-409-01452 | Wallis Energy Inc. only | San PatricioPlymouth | Shut inOil | 5,627 | — | 0 | — |