| De Los Santos Gas Unit 1 #342-505-32478 | Marwell Petroleum Ltd Partnrship | ZapataHaynes (Middle Wilcox Cons.) | ActiveGas | 11,803 | Aug 9, 1988 | 1 | Aug 2026 |
| Hilbrich-Sellers -B- #242-255-31128 | Marwell Petroleum Ltd Partnrship | KarnesBirdie (7100 Carrizzo) | ActiveGas | 7,520 | Dec 9, 1985 | 2 | Aug 2026 |
| Guerra H.P. Jr et al #142-427-31444 | Marwell Petroleum Ltd Partnrship | StarrRoma W. (Queen City 5700) | Temporarily abandonedGas | 12,500 | Oct 21, 1985 | 2 | Feb 2023 |
| Crow #142-175-32075 | Marwell Petroleum Ltd Partnrship | GoliadCircle -B- (4820) | PluggedGas | 5,308 | Jul 25, 1985 | 1 | May 2012 |
| Smith #342-237-36663 | Marwell Petroleum Ltd Partnrship | JackMatlock | ActiveOil | 5,751 | Feb 12, 1985 | 1 | Aug 2026 |
| Seiler Frieda #142-123-30120 | Marwell Petroleum Ltd Partnrship | De WittArneckeville S. (Y-6) | Temporarily abandonedGas | 5,450 | May 14, 1984 | 1 | Jan 2013 |
| Houdmann #142-297-33435 | Marwell Petroleum Ltd Partnrship | Live OakLimes S. (Wilcox 10750) | PluggedGas | 10,900 | Apr 17, 1984 | 1 | Dec 2019 |
| Rupp #342-249-31398 | Marwell Petroleum Ltd Partnrship | Jim WellsFalfurrias (9200 Vicksburg) | PluggedGas | 9,600 | Sep 6, 1983 | 2 | Feb 2022 |
| Gabriel F. G. #1A42-175-31753 | Marwell Petroleum Ltd Partnrship | GoliadRichie (4150) | PluggedGas | 4,800 | May 31, 1983 | 1 | Jul 2014 |
| McClelland E #142-297-33317 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | PluggedGas | 10,100 | May 26, 1983 | 1 | May 2024 |
| Kingery F. G. #142-297-33274 | Marwell Petroleum Ltd Partnrship | Live OakHarris (Wilcox-12050) | ActiveGas | 13,089 | Dec 20, 1982 | 1 | Jul 2026 |
| Bolting Georgia Faye et al #142-123-31275 | Marwell Petroleum Ltd Partnrship | De WittSpeary East (Wilcox 9800) | Temporarily abandonedGas | 9,862 | Dec 7, 1982 | 1 | Aug 2026 |
| McClelland #2042-297-33252 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | ActiveGas | 9,950 | Dec 6, 1982 | 1 | Aug 2026 |
| McClelland #1842-297-33201 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | Temporarily abandonedGas | 10,064 | Jul 22, 1982 | 1 | Dec 2004 |
| Hines E. A. #1 L42-297-32614 | Marwell Petroleum Ltd Partnrship | Live OakMountain View N.E. (Wilcox) | PluggedGas | 10,500 | Mar 1, 1982 | 2 | Mar 2010 |
| McClelland #1742-297-32952 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | ActiveGas | 11,000 | Dec 18, 1981 | 1 | Aug 2026 |
| McClelland C #142-297-32845 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | ActiveGas | 10,013 | Oct 16, 1981 | 1 | Aug 2026 |
| Wilkinson #142-175-31532 | Marwell Petroleum Ltd Partnrship | GoliadBerclair Northwest (Yegua 4700) | PluggedGas | 4,960 | Aug 25, 1981 | 1 | Apr 2015 |
| Hilbrich-Seller #3 L42-255-30162 | Marwell Petroleum Ltd Partnrship | KarnesMcCaskill (Wilcox Slick 7400) | PluggedGas | 9,711 | Jun 15, 1981 | 1 | Dec 2012 |
| McClelland G. U. B #142-297-32700 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | ActiveGas | 13,800 | May 20, 1981 | 1 | Aug 2026 |
| Griffith & Assoc. -a- #242-409-31215 | Marwell Petroleum Ltd Partnrship | San PatricioPapalote West (4120) | PluggedGas | 6,300 | Mar 3, 1981 | 2 | Jun 2011 |
| Reilly Gas Unit #442-427-31497 | Marwell Petroleum Ltd Partnrship | StarrReilly (Vicksburg) | PluggedGas | 5,150 | Jan 20, 1981 | 1 | Jun 2014 |
| Heard Georgie #1 T42-025-31394 | Marwell Petroleum Ltd Partnrship | BeeGeorgie Heard (3700) | PluggedGas | 5,300 | Jul 25, 1980 | 1 | Jun 2009 |
| McClelland #1542-297-32415 | Marwell Petroleum Ltd Partnrship | Live OakOakville (Wilcox Cons.) | ActiveGas | 11,020 | May 20, 1980 | 1 | Aug 2026 |
| Gafford H. B. #142-249-30483 | Marwell Petroleum Ltd Partnrship | Jim WellsHobby (F-30) | ActiveOil | 5,575 | Feb 14, 1980 | 1 | Aug 2026 |
| Cooley M. E. #942-469-31528 | Marwell Petroleum Ltd Partnrship | VictoriaMission Valley W. (1350 Stray) | PluggedGas | 2,000 | Nov 29, 1979 | 1 | Dec 2008 |
| Foster Wm. C. #342-123-31024 | Marwell Petroleum Ltd Partnrship | De WittMooney E.(yegua 5450) | ActiveGas | 5,659 | Nov 21, 1979 | 1 | Aug 2026 |
| O Hare et al #142-481-31673 | Marwell Petroleum Ltd Partnrship | WhartonBernard East (7700) | ActiveGas | 10,820 | Aug 25, 1978 | 1 | Aug 2026 |
| Jacob Matilda #242-175-31124 | Marwell Petroleum Ltd Partnrship | GoliadMission Valley W.(miocene 1350) | PluggedGas | 2,000 | Jul 11, 1978 | 1 | May 2011 |
| Janik et al #142-481-31641 | Marwell Petroleum Ltd Partnrship | WhartonBernard East (7700) | PluggedGas | 8,112 | Jun 12, 1978 | 1 | Feb 2020 |
| Palafox 21 #142-479-32040 | Marwell Petroleum Ltd Partnrship | WebbLas Tiendas (Olmos) | PluggedGas | 7,500 | May 22, 1978 | 1 | Jun 2011 |
| Ruschhaupt W. H. Jr. -a- #142-123-00685 | Marwell Petroleum Ltd Partnrship | De WittMeyersville East (8225) | PluggedGas | — | — | 0 | — |
| Connell C #142-169-30576 | Marwell Petroleum Ltd Partnrship | GarzaGreg-John (Strawn) | ActiveOil | 8,220 | — | 0 | — |
| Jacobs Matilda Estate #1A42-175-30334 | Marwell Petroleum Ltd Partnrship | GoliadMission Valley W.(miocene 1350) | PluggedGas | — | — | 0 | — |
| Hidalgo Willacy Unit #1 U42-215-01058 | Marwell Petroleum Ltd Partnrship | HidalgoElsa South (Frio Consolidated) | PluggedGas | — | — | 0 | — |
| Shaeffer Ranch -a- #1042-249-01167 | Marwell Petroleum Ltd Partnrship | Jim WellsRowena (Hockley) | ActiveGas | 5,100 | — | 0 | — |
| Bonorden-Clark Gas Unit #142-285-00163 | Marwell Petroleum Ltd Partnrship | LavacaProvident City (Wilcox 8 600) | PluggedGas | — | — | 0 | — |
| Camp #142-291-30099 | Marwell Petroleum Ltd Partnrship | LibertyHull | ActiveOil | 7,452 | — | 0 | — |
| Ferrell Isabel R. Mrs. -C- #142-297-02108 | Marwell Petroleum Ltd Partnrship | Live OakRamirena (Yegua #2) | ActiveOil | 4,804 | — | 0 | — |
| Renfro Oscie Dobie #142-297-02285 | Marwell Petroleum Ltd Partnrship | Live OakDinero West (Hockley) | ActiveOil | 4,400 | — | 0 | — |
| Lennox Emma B. -a- #2 C42-297-30065 | Marwell Petroleum Ltd Partnrship | Live OakKitty Burns ( Queen City) | PluggedGas | — | — | 0 | — |
| Wofford - E - #242-355-05242 | Marwell Petroleum Ltd Partnrship | NuecesAgua Dulce | PluggedGas | — | — | 0 | — |
| Atkinson Mary E. #142-469-00806 | Marwell Petroleum Ltd Partnrship | VictoriaRichard Adcock (5500) | ActiveGas | 8,832 | — | 0 | — |
| Cooley M. E. et al #242-469-01131 | Marwell Petroleum Ltd Partnrship | VictoriaMission Valley W. (Yegua 5000) | PluggedGas | — | — | 0 | — |
| Moritz Willie H. Gas Unit #142-469-01142 | Marwell Petroleum Ltd Partnrship | VictoriaMeyersville (Massive I) | PluggedGas | — | — | 0 | — |
| Sklar Charles #142-469-01927 | Marwell Petroleum Ltd Partnrship | VictoriaPlacedo (5700 West) | ActiveOil | 5,713 | — | 0 | — |
| Weaver Estate #142-481-01788 | Marwell Petroleum Ltd Partnrship | WhartonLouise | ActiveOil | 6,996 | — | 0 | — |