| State Tract 38 #442-057-31335 | Neumin Production Company | CalhounLavaca Bay (F-43) | PluggedGas | 12,370 | Jul 16, 1991 | 3 | May 2018 |
| State Tract 260 Unit No. 1 #242-239-31730 | Neumin Production Company | JacksonAppling Point (F-21-A) | PluggedGas | 9,670 | May 28, 1991 | 2 | Sep 1999 |
| Aluminum Co. of America (Fee) #1242-057-31415 | Neumin Production Company | CalhounLavaca Bay (F-39) | PluggedGas | 14,000 | May 24, 1991 | 3 | Jun 2009 |
| State Tract 38 #342-057-31274 | Neumin Production Company | CalhounLavaca Bay (F-46) | PluggedGas | 16,000 | May 3, 1991 | 3 | Aug 2017 |
| State Tract 240 #142-057-00746 | Neumin Production Company | CalhounAppling (Seg 5 7500) | PluggedGas | 9,504 | Sep 4, 1990 | 2 | Nov 1998 |
| Porche Est. #142-239-32473 | Neumin Production Company | JacksonWildcat | PluggedGas | 10,000 | Jul 25, 1990 | 2 | — |
| State Tract 37 #342-057-31495 | Neumin Production Company | CalhounLavaca Bay S.E. (F-23) | PluggedGas | 14,000 | Jun 20, 1990 | 2 | May 1993 |
| Thigpen Louis W. #142-175-32495 | Neumin Production Company | GoliadPerdido Creek (Yegua) | PluggedGas | 6,000 | Mar 5, 1990 | 1 | — |
| Olga Ochterbeck et al Unit #142-239-32530 | Neumin Production Company | JacksonArroyo Rojo (Burgher) | PluggedGas | 6,200 | Feb 13, 1990 | 1 | — |
| Melbourn W.C. #c 242-057-01370 | Neumin Production Company | CalhounMagnolia Beach (7500) | PluggedGas | 8,490 | Jan 16, 1990 | 3 | Jul 2014 |
| Pontious C.B. #242-245-31990 | Neumin Production Company | JeffersonPort Acres (Hack. 9550) | PluggedOil | 4,800 | Jan 16, 1990 | 1 | Jan 1995 |
| Swickheimer #142-175-32456 | Neumin Production Company | GoliadAlkek North (Frio 3700) | PluggedGas | 6,300 | Nov 3, 1989 | 2 | — |
| State Tract 177 #4 D42-057-31219 | Neumin Production Company | CalhounSteamboat Pass ( 2) | PluggedGas | 5,850 | Aug 9, 1989 | 4 | — |
| State Tract 81 #142-057-31463 | Neumin Production Company | CalhounKellers Bay East (8400) | PluggedGas | 8,724 | Oct 25, 1988 | 2 | — |
| State Tract 39 #442-057-31347 | Neumin Production Company | CalhounLavaca Bay (F-36) | PluggedGas | 14,500 | May 2, 1988 | 2 | Nov 2012 |
| State Tract 184 #342-057-31371 | Neumin Production Company | CalhounSteamboat Pass ( 3) | PluggedGas | 6,000 | Mar 25, 1988 | 3 | — |
| Smith Edna et al #142-285-31385 | Neumin Production Company | LavacaSpeaks (2200) | PluggedGas | 6,014 | Mar 15, 1988 | 3 | — |
| State Tract 27 #342-057-31356 | Neumin Production Company | CalhounLavaca Bay (F-31) | PluggedGas | 12,232 | Feb 22, 1988 | 3 | — |
| State Tract 26 #742-057-31416 | Neumin Production Company | CalhounLavaca Bay (F-44) | PluggedGas | 14,000 | Feb 22, 1988 | 2 | Jun 1994 |
| Ingersoll M.E. Gray #242-297-31879 | Neumin Production Company | Live OakOakville-Wilcox (Luling) | PluggedGas | 7,816 | Jan 14, 1988 | 5 | — |
| State Tract 38 #542-057-31393 | Neumin Production Company | CalhounLavaca Bay (F-43) | PluggedGas | 14,000 | Nov 16, 1987 | 3 | — |
| State Tract 184 #2 D42-057-31357 | Neumin Production Company | CalhounSteamboat Pass ( 3) | PluggedGas | 5,856 | Oct 29, 1987 | 3 | — |
| State Tract 42 Unit #1 U42-057-31438 | Neumin Production Company | CalhounLavaca Bay S.E. (Melbourn) | PluggedGas | 9,800 | Sep 4, 1987 | 1 | — |
| State Tract 177 #3 D42-057-31179 | Neumin Production Company | CalhounSteamboat Pass ( 6) | PluggedGas | 6,400 | Jul 13, 1987 | 2 | — |
| State Tract 197 #1 F42-057-31331 | Neumin Production Company | CalhounGrass Island W. (1900) | PluggedGas | 5,800 | Jul 3, 1987 | 2 | — |
| State Tract 36 #142-057-31428 | Neumin Production Company | CalhounLavaca Bay S.E. (F-23) | PluggedGas | 14,000 | May 13, 1987 | 2 | — |
| Melbourn W. C. #c 342-057-01256 | Neumin Production Company | CalhounMagnolia Beach (7500) | PluggedGas | 10,006 | Apr 20, 1987 | 3 | May 2015 |
| State Tract 38 #242-057-01310 | Neumin Production Company | CalhounLavaca Bay (F-34) | PluggedGas | 11,100 | Aug 12, 1986 | 2 | — |
| Clark S. A. #1A42-285-00550 | Neumin Production Company | LavacaSpeaks ( 1800) | PluggedGas | 10,301 | May 12, 1986 | 1 | — |
| State Tract 26 #142-057-01247 | Neumin Production Company | CalhounLavaca Bay (F-25) | PluggedGas | 11,550 | Mar 31, 1986 | 2 | — |
| Aluminum Company of America Fee #342-057-01376 | Neumin Production Company | CalhounLavaca Bay (F-31) | PluggedGas | 11,220 | Mar 28, 1986 | 1 | — |
| State Tract 196 #1 L42-057-31244 | Neumin Production Company | CalhounGrass Island SW. (2900) | PluggedGas | 6,400 | Mar 26, 1986 | 3 | — |
| State Tract 23 #342-057-31403 | Neumin Production Company | CalhounLavaca Bay (F-34) | PluggedGas | 12,428 | Oct 4, 1985 | 1 | Nov 2005 |
| State Tract 37 #242-057-31382 | Neumin Production Company | CalhounLavaca Bay (F-36) | PluggedGas | 12,068 | Jun 19, 1985 | 1 | — |
| State Tract 226 #142-239-32648 | Neumin Production Company | JacksonAppling (Seg 2 Peterson) | PluggedGas | 9,800 | Apr 23, 1985 | 3 | — |
| State Tract 90 #442-057-31376 | Neumin Production Company | CalhounPanther Reef S.W. (Frio 8260) | PluggedGas | 9,800 | Apr 16, 1985 | 1 | — |
| State Tract 177 #642-057-31372 | Neumin Production Company | CalhounSteamboat Pass (10-A) | PluggedGas | 6,000 | Mar 29, 1985 | 1 | — |
| State Tract 258 #142-239-03238 | Neumin Production Company | JacksonAppling (Seg 6 Weed Upper) | PluggedGas | 8,505 | Jan 31, 1985 | 1 | — |
| Coe Caroline #242-239-32102 | Neumin Production Company | JacksonAppling (Kopnicky Upper) | PluggedGas | 10,000 | Oct 19, 1984 | 1 | — |
| State Tract 39 #342-057-31342 | Neumin Production Company | CalhounLavaca Bay (F-40-A) | PluggedGas | 14,500 | Sep 11, 1984 | 1 | — |
| State Tract 175 #242-057-01130 | Neumin Production Company | CalhounSteamboat Pass ( 4) | PluggedGas | 6,000 | Jul 31, 1984 | 3 | — |
| Aluminum Company of America Fee #942-057-31328 | Neumin Production Company | CalhounLavaca Bay (F-40-B) | PluggedGas | 13,411 | Jun 20, 1984 | 1 | Apr 2020 |
| Smith Edna #342-285-31830 | Neumin Production Company | LavacaSpeaks SW. (Yegua 2870) | PluggedGas | 6,500 | Jun 6, 1984 | 1 | — |
| Smith Edna et al #242-285-31416 | Neumin Production Company | LavacaSpeaks SW. (2500) | PluggedGas | 6,000 | May 15, 1984 | 2 | — |
| Clark S.A. #4A42-285-31825 | Neumin Production Company | LavacaSpeaks SW. (Frio 2800) | PluggedGas | 4,013 | May 14, 1984 | 1 | — |
| State Tract 39 #142-057-01309 | Neumin Production Company | CalhounLavaca Bay (F-46) | PluggedGas | 11,577 | May 1, 1984 | 1 | — |
| Teltschick #3 D42-285-30626 | Neumin Production Company | LavacaSpeaks ( 1700) | PluggedGas | 4,014 | May 1, 1984 | 2 | — |
| State Tract 85 #242-057-31318 | Neumin Production Company | CalhounPanther Reef SW. (Frio E-4) | PluggedGas | 9,814 | Apr 20, 1984 | 1 | Jan 2013 |
| State Tract 60 #242-007-30744 | Neumin Production Company | AransasCopano Bay S. (FB-F O-4) | PluggedGas | 9,502 | Apr 17, 1984 | 1 | — |
| State Tract 90 #342-057-31317 | Neumin Production Company | CalhounPanther Reef SW. (Frio G-1) | PluggedGas | 9,820 | Apr 13, 1984 | 1 | — |