| Moore, H. B., -C- G-8-41333 | Brown Industrial Gas OP, Inc. only | Brownwood, South (Marble Falls) | Brown | 1 | 0 | 28.3K | by Jan 1993 – Dec 2015 |
| Moore, H. B. G-8-41413 | Brown Industrial Gas OP, Inc. only | Brownwood, South (Marble Falls) | Brown | 1 | 0 | 46.7K | by Jan 1993 – Dec 2015 |
| Adams, B. J., -A- G-8-42571 | Brown Industrial Gas OP, Inc. only | Brownwood, South (Marble Falls) | Brown | 1 | 0 | 14.6K | by Jan 1993 – Oct 2015 |
| Baxter & Kirkpatrick G-8-42878 | Cedar Ridge Energy, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 16.1K | Feb 1993 – Feb 2024 |
| Moring, J. E. G-8-42881 | Crossbow Resources, LLC only | X-Ray (Marble Falls) | Erath | 1 | 0 | 10.5K | by Jan 1993 – Aug 2026 |
| Nabers, Ima Lou & Lynn G-8-43155 | G.& S. Landscaping, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 38K | by Jan 1993 – Mar 2021 |
| Nabers, Ima Lou & Lynn G-8-43156 | G.& S. Landscaping, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 9.53K | by Jan 1993 – Mar 2021 |
| Nabers, Ima Lou & Lynn G-8-43157 | G.& S. Landscaping, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 36K | by Jan 1993 – Mar 2021 |
| Ritchie, E. B. G-8-43250 | Ranger Operating Co. only | Norris (Marble Falls) | Palo Pinto | 1 | 0 | 80.3K | by Jan 1993 – Mar 2007 |
| Stuart,j. N. -A- G-8-43276 | Braka Operating, L.L.C. only | Strawn (Marble Falls) | Palo Pinto | 1 | 0 | 289K | by Jan 1993 – Aug 2026 |
| Funderburk, A. C. G-8-43396 | Hane Operating, Inc. only | Brookesmith (Marble Falls Reef) | Brown | 1 | 0 | 5 | May 1999 – May 1999 |
| Stuart, Julia R. G-8-44045 | Stephens & Johnson Operating Co. only | Strawn, NW. (Marble Falls 3960) | Palo Pinto | 1 | 0 | 1.52K | by Jan 1993 – Jun 1993 |
| Newton, L. E. G-8-44850 | Newton, L. E. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Lewis-Nabers Unit G-8-45444 | G.& S. Landscaping, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 47.9K | by Jan 1993 – Mar 2021 |
| Nabers, Ima Lou & Lynn G-8-45445 | Nabers, Lynn only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 1.5K | by Jan 1993 – Nov 1999 |
| Reid, Grady G-8-46230 | Levisay Operating Co. only | M.j.reid (Marble Falls) | Brown | 1 | 0 | 31.2K | by Jan 1993 – Dec 2023 |
| Truehart, A. V. G-8-47207 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 6.72K | by Jan 1993 – Mar 1998 |
| Burchard, F. B. -543- G-8-47510 | Hogan, Wayne Oil Co. only | Burchard (Marble Falls Congl) | Shackelford | 1 | 0 | 47.5K | by Jan 1993 – Mar 1996 |
| Seagram, Joseph E. & Sons G-8-47795 | Shaida, John H. only | Strawn (Marble Falls) | Palo Pinto | 1 | 0 | 457K | by Jan 1993 – Aug 2026 |
| Noah, Mamie Estate G-8-48727 | Texcolada Oil Co. only | Desdemona, E. (Marble Falls) | Erath | 1 | 0 | 0 | — |
| Coats, S. T. G-8-49191 | Maverick Petroleum Corporation only | Desdemona, E. (Marble Falls) | Erath | 1 | 0 | 0 | — |
| Holloway & Mosterson G-8-49264 | Brown Industrial Gas OP, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 18.6K | by Jan 1993 – Mar 2007 |
| Summers, Stella M. G-8-49357 | North Ridge Corporation only | Bibb, West (Marble Falls) | Comanche | 1 | 0 | 0 | — |
| Boyd, R. G-8-49645 | Crt's, Inc. only | R. B. (Marble Falls 2420) | Brown | 1 | 0 | 12.8K | by Jan 1993 – Sep 2001 |
| Turpin, Emma G-8-50098 | Maverick Petroleum Corporation only | Desdemona, E. (Marble Falls) | Erath | 1 | 0 | 0 | — |
| Gailey, N. C. et al Unit G-8-52618 | Braka Operating, L.L.C. only | Gailey-Allen (Marble Falls) | Eastland | 1 | 0 | 53.8K | by Jan 1993 – Apr 2019 |
| Einstein Medical School G-8-52672 | Crt's, Inc. only | R. B. (Marble Falls 2420) | Brown | 1 | 0 | 14.6K | by Jan 1993 – Dec 1996 |
| Jones & Burroughs G-8-53131 | Otex LLC only | J. S. Lewis (Marble Falls) | Brown | 1 | 0 | 23.2K | by Jan 1993 – May 2020 |
| Moore, Ben H. G-8-53160 | SO Operating Company only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 622 | by Jan 1993 – Mar 1993 |
| Stewart, Billy V. G-8-53994 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 72 | by Jan 1993 – Dec 1998 |
| Mercer, Nell G-8-54156 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 3.63K | by Jan 1993 – Aug 2000 |
| Cole, O. B. G-8-54350 | Circle D Oil & Gas, Inc. only | Zourette (Marble Falls | Comanche | 1 | 0 | 5.57K | by Jan 1993 – Apr 2026 |
| Petross -B- G-8-54482 | Wilson, Olan Max only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Alexander, Lloyd C. G-8-54659 | Conquistador Petroleum,inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 324 | by Jan 1993 – May 1994 |
| Grelle, D. G-8-54932 | Brown Industrial Gas OP, Inc. only | Brookesmith,e(marble Falls Reef) | Brown | 1 | 0 | 8.25K | by Jan 1993 – Jun 2006 |
| Jones-Burroughs G-8-55004 | Sundial Resources, Inc. only | J. S. Lewis (Marble Falls) | Brown | 1 | 0 | 0 | — |
| Keith G-8-55147 | Toc Energy Resources, LLC only | Duster, South (Marble Falls) | Comanche | 1 | 0 | 177K | by Jan 1993 – Jul 2018 |
| Sanders, H. J. G-8-55309 | Rutledge, Kenny only | Duster, South (Marble Falls) | Comanche | 1 | 0 | 47.3K | by Jan 1993 – Aug 2026 |
| Murphree, W.E. G-8-55428 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 85.7K | by Jan 1993 – Aug 2026 |
| Day, Dolores G-8-55554 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 116K | by Jan 1993 – Aug 2026 |
| Keith G-8-55609 | Toc Energy Resources, LLC only | Duster, South (Marble Falls, UP) | Comanche | 1 | 0 | 51.8K | by Jan 1993 – Jul 2018 |
| Mitcham G.P. G-8-56802 | Levisay Operating Co. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 25.3K | by Jan 1993 – Dec 2023 |
| Hays, Tom -A- G-8-56824 | Cedar Ridge Energy, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 67K | by Jan 1993 – Jan 2017 |
| Lutheran Trinity Church G-8-56983 | Glover, Michael C. only | Laverrell (Marble Falls) | Shackelford | 1 | 0 | 53 | by Jan 1993 – Feb 1993 |
| McCleery Melvin & Uel G-8-57326 | Southwest Gas Systems, Inc. only | May-Grant (Marble Falls) | Brown | 1 | 0 | 6K | by Jan 1993 – Dec 2000 |
| Kilgore, W. F. G-8-57439 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 62.3K | by Jan 1993 – Aug 2026 |
| Mills G-8-57969 | Mills, A. only | R. B. (Marble Falls 2420) | Brown | 1 | 0 | 0 | — |
| Smith, J. Estate G-8-57970 | Excel Energy, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 11.2K | by Jan 1993 – Jun 1999 |
| Nichols Dorothy G-8-58278 | Southwest Gas Systems, Inc. only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 47.2K | by Jan 1993 – Aug 2026 |
| Fortner, Ed G-8-58743 | Barron, Franklin only | Brown Co. Regular (Marble Falls) | Brown | 1 | 0 | 0 | — |