| McNurlen G-8-83572 | Subsurface Production, Inc. only | Brookesmith (Marble Falls Reef) | Brown | 1 | 0 | 10.2K | Jun 2007 – Jan 2021 |
| Shelton, R.D. G-8-83575 | Nm&o Operating Company only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 5.01K | by Jan 1993 – Apr 1994 |
| Clark, Bobby G-8-83611 | Brown Industrial Gas OP, Inc. only | Brownwood, South (Marble Falls) | Brown | 1 | 0 | 50.5K | by Jan 1993 – Dec 2015 |
| Parkey Ranch G-8-83789 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 7.59K | by Jan 1993 – Aug 1998 |
| Nichols, Gladys -A- G-8-84144 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 61.6K | by Jan 1993 – Aug 2026 |
| Jay, M. L. Mrs. G-8-84186 | Petex only | Duster, NE. (Marble Falls 2750) | Comanche | 1 | 0 | 94.3K | by Jan 1993 – Dec 2007 |
| Indianola Railroad G-8-84277 | Cumming Company, Inc. The only | Indianola (Marble Falls) | Erath | 1 | 0 | 214K | by Jan 1993 – Dec 2008 |
| Higginbottom G-8-84600 | Smith Pipe of Abilene only | Duster, NE. (Marble Falls 2750) | Eastland | 1 | 0 | 5.69K | by Jan 1993 – Mar 2004 |
| Young & Yarbrough G-8-84692 | Shady Oil Co. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 36.8K | by Jan 1993 – Jul 2026 |
| Larry, George G-8-84762 | Eliteenergyholdings LLC only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 26.6K | Jun 1993 – Apr 2024 |
| Henderson, Lewis G-8-84763 | Rice Drilling Company only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Vieth G-8-84798 | Gonzenbach, Glen D only | Millsap (Marble Falls) | Parker | 1 | 0 | 28.9K | by Jan 1993 – Mar 1998 |
| Robertson Heirs G-8-84819 | Sequoia Energy Resources only | Bbb&c, BLK.3 (Marble Falls) | Comanche | 1 | 0 | 9.28K | by Jan 1993 – Sep 1998 |
| Greenman B G-8-85026 | Case Resources, LLC only | Poolville, SW (Marble Falls) | Parker | 1 | 0 | 0 | — |
| Herpel-Murphy G-8-85029 | Mosaic Texas LLC only | Morgan Mill (Marble Falls) | Hood | 1 | 0 | 73.5K | by Jan 1993 – Mar 2023 |
| Beaty, J. C. G-8-85179 | Smith Pipe of Abilene only | Duster, NE. (Marble Falls 2750) | Comanche | 1 | 0 | 9.29K | by Jan 1993 – Mar 2004 |
| Chambers, R. G. G-8-85180 | R & D Operating, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 3.21K | by Jan 1993 – Jan 1995 |
| Nanny G-8-85181 | Smith Pipe of Abilene only | Hill City, W. (Marble Falls) | Hood | 1 | 0 | 31.9K | by Jan 1993 – Oct 2004 |
| Crenshaw, Frank G-8-85190 | Hane Operating, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 705 | Aug 1993 – May 1994 |
| Tongate, Jerry C. G-8-85224 | Bruce Ogletree LLC only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 41.9K | by Jan 1993 – Aug 2022 |
| Davis G-8-85233 | Spindletop Oil & Gas Company only | X-Ray (Marble Falls) | Erath | 1 | 0 | 24K | by Jan 1993 – Oct 2013 |
| Cole, Bert B. "B" G-8-85499 | Cole, Bert only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Cole, Bert B. "B" G-8-85500 | Cole, Bert only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Rush, Jerry G-8-85501 | Jam Oil & Gas Company only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Rush, Jerry G-8-85502 | Jam Oil & Gas Company only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Armstrong, A. F. G-8-85782 | KLH Oil & Gas, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Popnoe, B.W. G-8-85794 | Family Trust B, The only | Camp Colorado, S. (Marble Falls) | Coleman | 1 | 0 | 97.6K | by Jan 1993 – Apr 2016 |
| Sullivan, Ben G-8-86104 | Sullivan, Ben only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| E.L. Rhoades Unit G-8-86150 | Sun-Key Oil Co., Inc. only | Bratten (Marble Falls) | Hood | 1 | 0 | 0 | — |
| Atkinson, Joe G-8-86267 | Western American Expl. Co.,inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Burcham G-8-86509 | Anderson Production only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 107K | by Jan 1993 – Aug 2026 |
| Stroud, J.A. G-8-86664 | Dabb Energy Company only | Buckner (Marble Falls) | Parker | 1 | 0 | 8.56K | May 1993 – Jan 1998 |
| Bucy, Betty "A" G-8-86674 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 106K | by Jan 1993 – Aug 2026 |
| Kingsberry,c.e. "C" G-8-87287 | Santa Anna Operating 3, LLC only | Santa Anna (Marble Falls) | Coleman | 1 | 0 | 33K | by Jan 1993 – Dec 2022 |
| Harris "D" G-8-87288 | E.C. Hindman Oil and Gas only | Rocky Ridge (Marble Falls) | Stephens | 1 | 0 | 420K | by Jan 1993 – Jul 2026 |
| McInroe C. G-8-87547 | Miller Operating Company LLC only | X-Ray (Marble Falls) | Erath | 1 | 0 | 11.6K | by Jan 1993 – Sep 1998 |
| Seward G-8-87693 | Los Hijos de Sanchez J LLC only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 3.25K | Feb 2006 – Jan 2013 |
| Lusby, C. C. G-8-87727 | Galleria Oil Company, Inc. only | Lusby (Marble Falls Lime) | Erath | 1 | 0 | 1.88K | Jul 1994 – Dec 1994 |
| Boysen, S.F. G-8-87859 | R & D Operating, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 8.86K | by Jan 1993 – Feb 2016 |
| Thompson G-8-87876 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 65.5K | by Jan 1993 – Aug 2026 |
| Boysen, S.F. G-8-87877 | R & D Operating, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 7.85K | by Jan 1993 – Feb 2016 |
| Boysen, S.F. G-8-87878 | R & D Operating, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 15.1K | by Jan 1993 – Feb 2016 |
| Tanton G-8-87982 | G & F Oil, Inc. only | Granbury, NE. (Marble Falls) | Hood | 1 | 0 | 72K | Nov 1993 – Apr 2012 |
| Leach-Nichols G.V. G-8-87984 | Marshall, Sam only | Granbury, NE. (Marble Falls) | Hood | 1 | 0 | 4.66K | by Jan 1993 – Jun 1994 |
| Perry, Jack G-8-87985 | Watson Oil & Gas, Inc. only | Duster, NE. (Marble Falls 2750) | Comanche | 1 | 0 | 62.3K | Jun 1993 – Aug 2026 |
| Waynick G-8-88146 | Cumming Company, Inc. The only | Indianola (Marble Falls) | Erath | 1 | 0 | 112K | by Jan 1993 – Jun 2008 |
| Pipes, W.B. Gas Unit G-8-88175 | Crossbow Resources, LLC only | X-Ray (Marble Falls) | Erath | 1 | 0 | 220K | by Jan 1993 – Aug 2026 |
| McClellan G-8-88254 | Gregory, J. Russell Inc. only | Brookesmith (Marble Falls Reef) | Brown | 1 | 0 | 0 | — |
| Geer, J.R. G-8-88320 | Harmony Oil and Gas, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Covington G-8-88485 | 9K Investments LLC only | Morgan Mill (Marble Falls) | Erath | 1 | 0 | 57.8K | Feb 1993 – Jun 2026 |