| Wheat -88- #242-137-31566 | Hamman Oil & Refining Company | EdwardsFrances Hill (Penn) | PluggedGas | 8,000 | Aug 14, 2000 | 1 | — |
| Bauer Chato #3D42-025-30094 | Hamman Oil & Refining Company | BeeMedio Creek (3350) | PluggedOil | 3,500 | Nov 5, 1997 | 1 | — |
| Camp et al #142-321-31664 | Hamman Oil & Refining Company | MatagordaMarkham East (6900) | PluggedOil | 8,000 | Sep 30, 1991 | 1 | — |
| Mitchell Development Fee #242-167-30619 | Hamman Oil & Refining Company | GalvestonPelican Island (FR10 11500) | PluggedOil | 13,000 | Dec 1, 1989 | 3 | — |
| 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 | — |
| Anderson B. D. #242-089-31341 | Hamman Oil & Refining Company | ColoradoChesterville North (Yegua 6400) | PluggedGas | 7,000 | Jul 13, 1987 | 4 | — |
| 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 | — |
| McFaddin W.H.P. #1 L42-245-31868 | Hamman Oil & Refining Company | JeffersonPort Acres (Frio 1) | PluggedOil | 8,500 | Dec 30, 1985 | 1 | — |
| Mitchell W. C. #142-041-31344 | Hamman Oil & Refining Company | BrazosMillican E (Queen City) | PluggedGas | 4,000 | Sep 19, 1985 | 1 | — |
| 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 | — |
| Blackburn J. #1142-175-01174 | Hamman Oil & Refining Company | GoliadBerclair (1550) | PluggedGas | 1,800 | Aug 7, 1984 | 1 | — |
| State Tract 36 #142-071-31367 | Hamman Oil & Refining Company | ChambersLake Anahuac (F-16) | PluggedGas | 10,800 | May 31, 1984 | 2 | — |
| Evoritt #142-089-31472 | Hamman Oil & Refining Company | ColoradoStarr-Lite North (Wilcox A-3) | PluggedGas | 9,510 | Mar 8, 1984 | 1 | — |
| Witter #142-089-31411 | Hamman Oil & Refining Company | ColoradoChesterville North (Yegua 6000) | PluggedGas | 7,000 | Sep 1, 1983 | 1 | — |
| Anderson B. D. #1 A42-089-31398 | Hamman Oil & Refining Company | ColoradoStarr-Lite North (Wilcox A-2) | PluggedGas | 9,500 | Jun 10, 1983 | 1 | — |
| State Tract 37 #142-071-31407 | Hamman Oil & Refining Company | ChambersLake Anahuac (9700) | PluggedGas | 11,000 | Dec 17, 1982 | 1 | — |
| Stevens H. #342-089-31318 | Hamman Oil & Refining Company | ColoradoChesterville North (Yegua 6000) | PluggedGas | 7,000 | Jul 13, 1982 | 1 | — |
| Cranz #142-089-31310 | Hamman Oil & Refining Company | ColoradoStarr-Lite North (Wilcox A-2) | PluggedGas | 9,500 | Jun 22, 1982 | 1 | — |
| Hannah B #242-291-31510 | Hamman Oil & Refining Company | LibertyHull | PluggedOil | 3,900 | Mar 30, 1982 | 1 | — |
| South Texas Syndicate #1-3142-283-30845 | Hamman Oil & Refg. Co.permit operator | La Salle | Drilled | 6,000 | Nov 20, 1981 | 1 | — |
| Anderson B.D. #1 T42-089-31277 | Hamman Oil & Refining Company | ColoradoChesterville North (6700) | PluggedOil | 6,800 | Oct 20, 1981 | 1 | — |
| South Texas Syndicate #102942-311-31607 | Hamman Oil & Refining Company | McMullenMula Pasture (Wilcox Lower) | PluggedGas | 6,000 | Jul 9, 1981 | 1 | — |
| Terrell Etta #442-175-01248 | Hamman Oil & Refining Company | GoliadBerclair (1550) | PluggedGas | 3,173 | Mar 9, 1981 | 1 | — |
| Neal J. M. Estate #142-291-31413 | Hamman Oil & Refining Company | LibertyNeal Hill (Yegua 1 Sand) | PluggedGas | 8,500 | Feb 2, 1981 | 1 | — |
| Jewish Home for the Aged #242-201-31131 | Hamman Oil & Refg. Co.permit operator | HarrisCypress (Cockfield A) | Drilled | 7,500 | Oct 20, 1980 | 1 | — |
| Johnson Ida Sue #142-263-30650 | Hamman Oil & Refining Company | KentIda Sue (Strawn) | PluggedOil | 7,700 | Apr 17, 1980 | 2 | — |
| Rauch Leonard Trustee #2D42-071-31024 | Hamman Oil & Refining Company | ChambersCotton Lake North (MARG.6280) | PluggedOil | 2,500 | Mar 10, 1980 | 1 | — |
| Lutenbacher-Blackburn Frio Unit #2142-175-01226 | Hamman Oil & Refining Company | GoliadBerclair (2200 Frio) | PluggedOil | 3,185 | Nov 14, 1979 | 2 | — |
| Mandell David M. #242-201-31012 | Hamman Oil & Refining Company | HarrisCypress (Cockfield A) | PluggedGas | 7,500 | Oct 30, 1979 | 1 | — |
| Barg-Miller Unit #142-071-30914 | Hamman Oil & Refining Company | ChambersCotton Lake North (MARG.6280) | PluggedOil | 7,000 | Dec 27, 1978 | 1 | — |
| Davis T. W. #14542-157-02950 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | 4,410 | Jul 6, 1978 | 1 | — |
| Brinson, H.L. #142-433-30814 | Hamman Oil & Refg. Co.permit operator | Stonewall | Drilled | 7,000 | Feb 24, 1978 | 1 | — |
| Rauch Leonard Trustee #142-071-30807 | Hamman Oil & Refining Company | ChambersCotton Lake North (MARG.6280) | PluggedOil | 7,000 | Jan 5, 1978 | 1 | — |
| Mitchell Development Fee #142-167-30591 | Hamman Oil & Refining Company | GalvestonPelican Island (FR10 11500) | PluggedOil | 12,200 | Oct 4, 1977 | 1 | — |
| Grawunder Ed #142-015-00786 | Hamman Oil & Refining Company | AustinRaccoon Bend | PluggedGas | — | — | 0 | — |
| Epstine Geramino #142-029-80655 | Hamman Oil & Refining Company | BexarVon Ormy | PluggedOil | — | — | 0 | — |
| Epstine Geramino #242-029-80656 | Hamman Oil & Refining Company | BexarVon Ormy | PluggedOil | — | — | 0 | — |
| Cherry Everett #142-149-30005 | Hamman Oil & Refining Company | FayetteMuldoon NE. (Brownlow Sand) | PluggedOil | — | — | 0 | — |
| Davis T. W. #1842-157-01793 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | — | — | 0 | — |
| Davis T. W. #6942-157-01820 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | — | — | 0 | — |
| Davis T. W. #8742-157-01828 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | — | — | 0 | — |
| Davis T. W. #8942-157-01830 | Hamman Oil & Refining Company | Fort BendBig Creek | Not on scheduleOil | — | — | 0 | — |
| Davis T. W. #9042-157-01831 | Hamman Oil & Refining Company | Fort BendBig Creek | Not on scheduleOil | — | — | 0 | — |
| Davis T. W. #9242-157-01833 | Hamman Oil & Refining Company | Fort BendBig Creek | PluggedOil | — | — | 0 | — |