| Tank Farm #742-329-34772 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Nov 21, 2002 | — | — |
| Tank Farm #842-329-34773 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Nov 21, 2002 | — | — |
| Tank Farm #942-329-34774 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Nov 21, 2002 | — | — |
| Tank Farm #342-329-34730 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Jun 17, 2002 | — | — |
| Tank Farm #442-329-34731 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Jun 17, 2002 | — | — |
| Tank Farm #542-329-34729 | Hamman Oil & Refining Company | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,000 | Jun 14, 2002 | — | — |
| Austin #442-247-32250 | Hamman Oil & Refining Company | Jim Hogg, TXJaron (Queen City) | PluggedGas | 10,000 | May 28, 2002 | — | — |
| Austin #342-247-32247 | Hamman Oil & Refining Company | Jim Hogg, TXJaron (Queen City) | PluggedGas | 10,000 | May 8, 2002 | — | — |
| Austin a #242-247-32241 | Hamman Oil & Refining Company | Jim Hogg, TXJaron (Queen City) | PluggedGas | 10,000 | Jan 17, 2002 | — | — |
| Austin #142-247-32236 | Hamman Oil & Refining Company | Jim Hogg, TXJaron (Queen City) | PluggedGas | 10,500 | Dec 21, 2001 | — | — |
| Weil #142-247-32232 | Hamman Oil & Refining Company | Jim Hogg, TXT-Bird (Queen City) | PluggedGas | 11,000 | Nov 7, 2001 | — | — |
| Josey L. #542-201-32256 | Hamman Oil & Refining Company | Harris, TXJosey Ranch (6450) | PluggedOil | 7,000 | Jan 10, 2001 | — | — |
| Wheat -88- #242-137-31566 | Hamman Oil & Refining Company | Edwards, TXFrances Hill (Penn) | PluggedGas | 8,000 | Aug 14, 2000 | — | — |
| Longenbaugh #842-201-32079 | Hamman Oil & Refining Company | Harris, TXCypress (Y-4) | PluggedGas | 7,559 | Jul 25, 2000 | — | — |
| Longenbaugh A. G. #1242-201-32565 | Hamman Oil & Refining Company | Harris, TXCypress (Y-9) | PluggedOil | 7,500 | Jan 28, 1999 | — | — |
| Longenbaugh #342-201-30882 | Hamman Oil & Refining Company | Harris, TXCypress (Cockfield B) | PluggedGas | 8,000 | Dec 22, 1998 | — | — |
| Wilkinson -24- #542-431-32904 | Hamman Oil & Refining Company | Sterling, TXCredo E. (Cisco Up.) | PluggedGas | 8,000 | Nov 19, 1997 | — | — |
| Bauer Chato #3D42-025-30094 | Hamman Oil & Refining Company | Bee, TXMedio Creek (3350) | PluggedOil | 3,500 | Nov 5, 1997 | — | — |
| Wilkinson -24- #342-431-32892 | Hamman Oil & Refining Company | Sterling, TXCredo E. (Cisco Up.) | PluggedGas | 8,000 | Oct 7, 1997 | — | — |
| Wilkinson -24- #142-431-32876 | Hamman Oil & Refining Company | Sterling, TXCredo E. (Cisco Up.) | PluggedGas | 8,000 | Jun 24, 1997 | — | — |
| Bauer Chato #242-025-32801 | Hamman Oil & Refining Company | Bee, TXMedio Creek East (4730) | PluggedGas | 5,400 | Jan 22, 1997 | — | — |
| Harkins #242-175-32941 | Hamman Oil & Refining Company | Goliad, TXSarco Creek (4870) | PluggedOil | 5,400 | Sep 13, 1996 | — | — |
| Bauer Chato #142-025-32772 | Hamman Oil & Refining Company | Bee, TXMedio Creek (3900) | PluggedGas | 5,400 | Jun 28, 1996 | — | — |
| Longenbaugh H. J. #942-201-32207 | Hamman Oil & Refining Company | Harris, TXCypress (Y-1) | PluggedGas | 8,000 | Jun 13, 1996 | — | — |
| Miller L. H. Gas Unit #242-321-31705 | Hamman Oil & Refining Company | Matagorda, TXJennings Lake (Frio 9500) | PluggedGas | 10,000 | Sep 2, 1994 | — | — |
| Weil C #342-247-32029 | Hamman Oil & Refining Company | Jim Hogg, TXWeil (Hockley) | PluggedOil | 5,500 | May 2, 1994 | — | — |
| Bryan E. Fee #342-157-31921 | Hamman Oil & Refining Company | Fort Bend, TXBig Creek | PluggedOil | 4,500 | Apr 29, 1994 | — | — |
| Alexander C. D. #142-195-00036 | Hamman Oil & Refining Company | Hansford, TXClementine (Novi) | PluggedGas | 6,870 | Jun 15, 1992 | — | — |
| Camp et al #142-321-31664 | Hamman Oil & Refining Company | Matagorda, TXMarkham East (6900) | PluggedOil | 8,000 | Sep 30, 1991 | — | — |
| Josey L. #142-201-30452 | Hamman Oil & Refining Company | Harris, TXJosey Ranch (Yegua 6900) | PluggedGas | 7,512 | Aug 20, 1991 | — | — |
| Matula #242-255-31264 | Hamman Oil & Refining Company | Karnes, TXPorter N. (Reklaw) | PluggedGas | 13,500 | Jul 5, 1991 | — | — |
| Lutenbacher Mary #842-175-01222 | Hamman Oil & Refining Company | Goliad, TXBerclair (2800) | PluggedGas | 3,163 | Apr 23, 1991 | — | — |
| Terrell Etta #742-175-01251 | Hamman Oil & Refining Company | Goliad, TXBerclair (2700) | PluggedOil | 3,161 | Feb 12, 1991 | — | — |
| Mitchell Development Fee #242-167-30619 | Hamman Oil & Refining Company | Galveston, TXPelican Island (FR10 11500) | PluggedOil | 13,000 | Dec 1, 1989 | — | — |
| Josey L. #442-201-32170 | Hamman Oil & Refining Company | Harris, TXJosey Ranch (6450) | PluggedOil | 7,500 | Mar 2, 1989 | — | — |
| Alexander-Odc #142-195-00025 | Hamman Oil & Refining Company | Hansford, TXClementine (Morrow Upper) | PluggedOil | 6,900 | Jan 5, 1989 | — | — |
| Matula #142-255-31210 | Hamman Oil & Refining Company | Karnes, TXPorter N. (Reklaw) | PluggedGas | 7,500 | Nov 30, 1988 | — | — |
| Josey L. #342-201-30491 | Hamman Oil & Refining Company | Harris, TXJosey Ranch | PluggedGas | 7,612 | Aug 29, 1988 | — | — |
| Kirby Lumber Company #242-373-30640 | Hamman Oil & Refining Company | Polk, TXAce North (3200) | PluggedGas | 5,000 | Feb 4, 1988 | — | — |
| Carter W.T. a #242-373-30695 | Hamman Oil & Refining Company | Polk, TXCamp Ruby (Hockley 3000) | PluggedOil | 9,500 | Dec 17, 1987 | — | — |
| Longenbaugh #142-201-30779 | Hamman Oil & Refining Company | Harris, TXCypress (Y-1) | PluggedGas | 7,600 | Oct 20, 1987 | — | — |
| NG-46 #142-173-31990 | Hamman Oil & Refining Company | Glasscock, TXSpraberry (Trend Area) | PluggedOil | 10,800 | Jul 22, 1987 | — | — |
| Anderson B. D. #242-089-31341 | Hamman Oil & Refining Company | Colorado, TXChesterville North (Yegua 6400) | PluggedGas | 7,000 | Jul 13, 1987 | — | — |
| Wilcox Heirs #442-071-31304 | Hamman Oil & Refining Company | Chambers, TXTrinity River Delta (F-12) | PluggedGas | 10,000 | Jun 4, 1987 | — | — |
| Bunger 30 #142-465-30460 | Hamman Oil & Refining Company | Val Verde, TXBaxter-Wentworth (Canyon Sand) | PluggedGas | 5,000 | Jun 27, 1986 | — | — |
| H. Massey #142-089-31589 | Hamman Oil & Refining Company | Colorado, TXRock Island W. (8230) | PluggedGas | 10,600 | May 20, 1986 | — | — |
| Rauch #342-071-31774 | Hamman Oil & Refining Company | Chambers, TXCotton Lake North (MARG.6280) | PluggedGas | 8,000 | Mar 31, 1986 | — | — |
| Bunger 6 #142-465-30466 | Hamman Oil & Refining Company | Val Verde, TXBaxter-Wentworth (Canyon Sand) | PluggedGas | 4,500 | Feb 10, 1986 | — | — |
| McFaddin W.H.P. #1 L42-245-31868 | Hamman Oil & Refining Company | Jefferson, TXPort Acres (Frio 1) | PluggedOil | 8,500 | Dec 30, 1985 | — | — |
| Miller L. H. Gas Unit #142-321-31316 | Hamman Oil & Refining Company | Matagorda, TXJennings Lake (Frio 9500) | PluggedGas | 12,500 | Nov 20, 1985 | — | — |