| Bryan E. Fee #1742-157-30259 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | 2,794 | Jan 31, 2014 | 1 | Aug 2026 |
| Davis T. W. #29142-157-32807 | Hamman Oil & Refining Company | Fort BendBig Creek | Shut inOil | 3,443 | Mar 14, 2012 | 1 | Aug 2026 |
| Longenbaugh A.G. #1342-201-32578 | Hamman Oil & Refining Company | HarrisCypress (Y-6) | PluggedOil | 7,500 | Dec 16, 2005 | 2 | Mar 2018 |
| University 57-4 #142-413-31089 | Hamman Oil & Refining Company | SchleicherUniversity 101 (Leonard) | PluggedOil | 8,185 | Nov 9, 2004 | 2 | Jul 2005 |
| Longenbaugh #15 T42-201-32615 | Hamman Oil & Refining Company | HarrisCypress (Y-6) | PluggedOil | 8,000 | Mar 19, 2004 | 4 | Sep 2005 |
| Longenbaugh #1042-201-32436 | Hamman Oil & Refining Company | HarrisCypress (Y-1) | PluggedGas | 8,000 | Feb 6, 2004 | 3 | Aug 2005 |
| Harkins #142-175-32877 | Hamman Oil & Refining Company | GoliadSarco Creek (4700) | PluggedGas | 5,500 | Apr 9, 2003 | 3 | Aug 2005 |
| Josey L. #542-201-32256 | Hamman Oil & Refining Company | HarrisJosey Ranch (6450) | PluggedOil | 7,000 | Jan 10, 2001 | 3 | Nov 2016 |
| Wheat -88- #242-137-31566 | Hamman Oil & Refining Company | EdwardsFrances Hill (Penn) | PluggedGas | 8,000 | Aug 14, 2000 | 1 | — |
| Longenbaugh #842-201-32079 | Hamman Oil & Refining Company | HarrisCypress (Y-4) | PluggedGas | 7,559 | Jul 25, 2000 | 6 | Feb 2001 |
| Longenbaugh A. G. #1242-201-32565 | Hamman Oil & Refining Company | HarrisCypress (Y-9) | PluggedOil | 7,500 | Jan 28, 1999 | 1 | Jul 2014 |
| Longenbaugh #342-201-30882 | Hamman Oil & Refining Company | HarrisCypress (Cockfield B) | PluggedGas | 8,000 | Dec 22, 1998 | 4 | Mar 2004 |
| Wilkinson -24- #542-431-32904 | Hamman Oil & Refining Company | SterlingCredo E. (Cisco Up.) | PluggedGas | 8,000 | Nov 19, 1997 | 1 | Aug 2004 |
| Bauer Chato #3D42-025-30094 | Hamman Oil & Refining Company | BeeMedio Creek (3350) | PluggedOil | 3,500 | Nov 5, 1997 | 1 | — |
| Wilkinson -24- #342-431-32892 | Hamman Oil & Refining Company | SterlingCredo E. (Cisco Up.) | PluggedGas | 8,000 | Oct 7, 1997 | 1 | Sep 2004 |
| Wilkinson -24- #142-431-32876 | Hamman Oil & Refining Company | SterlingCredo E. (Cisco Up.) | PluggedGas | 8,000 | Jun 24, 1997 | 1 | Sep 2004 |
| Bauer Chato #242-025-32801 | Hamman Oil & Refining Company | BeeMedio Creek East (4730) | PluggedGas | 5,400 | Jan 22, 1997 | 2 | Jan 1999 |
| Harkins #242-175-32941 | Hamman Oil & Refining Company | GoliadSarco Creek (4870) | PluggedOil | 5,400 | Sep 13, 1996 | 2 | Jun 2002 |
| Bauer Chato #142-025-32772 | Hamman Oil & Refining Company | BeeMedio Creek (3900) | PluggedGas | 5,400 | Jun 28, 1996 | 2 | Dec 1998 |
| Longenbaugh H. J. #942-201-32207 | Hamman Oil & Refining Company | HarrisCypress (Y-1) | PluggedGas | 8,000 | Jun 13, 1996 | 5 | May 1997 |
| Miller L. H. Gas Unit #242-321-31705 | Hamman Oil & Refining Company | MatagordaJennings Lake (Frio 9500) | PluggedGas | 10,000 | Sep 2, 1994 | 1 | Nov 1997 |
| Weil C #342-247-32029 | Hamman Oil & Refining Company | Jim HoggWeil (Hockley) | PluggedOil | 5,500 | May 2, 1994 | 1 | Feb 1999 |
| Bryan E. Fee #342-157-31921 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | 4,500 | Apr 29, 1994 | 1 | Aug 2026 |
| Alexander C. D. #142-195-00036 | Hamman Oil & Refining Company | HansfordClementine (Novi) | PluggedGas | 6,870 | Jun 15, 1992 | 1 | Dec 2015 |
| Camp et al #142-321-31664 | Hamman Oil & Refining Company | MatagordaMarkham East (6900) | PluggedOil | 8,000 | Sep 30, 1991 | 1 | — |
| Josey L. #142-201-30452 | Hamman Oil & Refining Company | HarrisJosey Ranch (Yegua 6900) | PluggedGas | 7,512 | Aug 20, 1991 | 3 | Nov 2016 |
| Matula #242-255-31264 | Hamman Oil & Refining Company | KarnesPorter N. (Reklaw) | PluggedGas | 13,500 | Jul 5, 1991 | 3 | Dec 1999 |
| Lutenbacher Mary #842-175-01222 | Hamman Oil & Refining Company | GoliadBerclair (2800) | PluggedGas | 3,163 | Apr 23, 1991 | 2 | Feb 2020 |
| Terrell Etta #742-175-01251 | Hamman Oil & Refining Company | GoliadBerclair (2700) | PluggedOil | 3,161 | Feb 12, 1991 | 1 | Aug 2023 |
| Mitchell Development Fee #242-167-30619 | Hamman Oil & Refining Company | GalvestonPelican Island (FR10 11500) | PluggedOil | 13,000 | Dec 1, 1989 | 3 | — |
| Josey L. #442-201-32170 | Hamman Oil & Refining Company | HarrisJosey Ranch (6450) | PluggedOil | 7,500 | Mar 2, 1989 | 1 | Nov 2016 |
| Alexander-Odc #142-195-00025 | Hamman Oil & Refining Company | HansfordClementine (Morrow Upper) | PluggedOil | 6,900 | Jan 5, 1989 | 1 | Apr 2020 |
| Matula #142-255-31210 | Hamman Oil & Refining Company | KarnesPorter N. (Reklaw) | PluggedGas | 7,500 | Nov 30, 1988 | 1 | — |
| Josey L. #342-201-30491 | Hamman Oil & Refining Company | HarrisJosey Ranch | PluggedGas | 7,612 | Aug 29, 1988 | 3 | — |
| Kirby Lumber Company #242-373-30640 | Hamman Oil & Refining Company | PolkAce North (3200) | PluggedGas | 5,000 | Feb 4, 1988 | 3 | — |
| Carter W.T. a #242-373-30695 | Hamman Oil & Refining Company | PolkCamp Ruby (Hockley 3000) | PluggedOil | 9,500 | Dec 17, 1987 | 2 | — |
| Longenbaugh #142-201-30779 | Hamman Oil & Refining Company | HarrisCypress (Y-1) | PluggedGas | 7,600 | Oct 20, 1987 | 5 | — |
| NG-46 #142-173-31990 | Hamman Oil & Refining Company | GlasscockSpraberry (Trend Area) | PluggedOil | 10,800 | Jul 22, 1987 | 2 | Sep 2017 |
| Anderson B. D. #242-089-31341 | Hamman Oil & Refining Company | ColoradoChesterville North (Yegua 6400) | PluggedGas | 7,000 | Jul 13, 1987 | 4 | — |
| Wilcox Heirs #442-071-31304 | Hamman Oil & Refining Company | ChambersTrinity River Delta (F-12) | PluggedGas | 10,000 | Jun 4, 1987 | 2 | Jul 1998 |
| Bunger 30 #142-465-30460 | Hamman Oil & Refining Company | Val VerdeBaxter-Wentworth (Canyon Sand) | PluggedGas | 5,000 | Jun 27, 1986 | 2 | Feb 2019 |
| H. Massey #142-089-31589 | Hamman Oil & Refining Company | ColoradoRock Island W. (8230) | PluggedGas | 10,600 | May 20, 1986 | 3 | — |
| Rauch #342-071-31774 | Hamman Oil & Refining Company | ChambersCotton Lake North (MARG.6280) | PluggedGas | 8,000 | Mar 31, 1986 | 2 | — |
| Bunger 6 #142-465-30466 | Hamman Oil & Refining Company | Val VerdeBaxter-Wentworth (Canyon Sand) | PluggedGas | 4,500 | Feb 10, 1986 | 1 | Aug 2004 |
| McFaddin W.H.P. #1 L42-245-31868 | Hamman Oil & Refining Company | JeffersonPort Acres (Frio 1) | PluggedOil | 8,500 | Dec 30, 1985 | 1 | — |
| Miller L. H. Gas Unit #142-321-31316 | Hamman Oil & Refining Company | MatagordaJennings Lake (Frio 9500) | PluggedGas | 12,500 | Nov 20, 1985 | 3 | Jan 1996 |
| Mitchell W. C. #142-041-31344 | Hamman Oil & Refining Company | BrazosMillican E (Queen City) | PluggedGas | 4,000 | Sep 19, 1985 | 1 | — |
| Alexander C. D. -C- #402042-195-30956 | Hamman Oil & Refining Company | HansfordClementine (Des Moines) | PluggedGas | 7,300 | May 31, 1985 | 2 | Apr 2020 |
| Tank Farm #242-329-31517 | Hamman Oil & Refining Company | MidlandBrasher (Atoka) | PluggedOil | 12,700 | May 2, 1985 | 1 | — |
| Wilcox Heirs #2A42-071-31161 | Hamman Oil & Refining Company | ChambersTrinity River Delta (Marg. A) | PluggedGas | 9,040 | Jan 15, 1985 | 3 | — |