| Robertson I. W. Estate #2242-093-31513 | Brown Industrial Gas OP Inc. | ComancheBbb&c BLK.3 (Marble Falls) | PluggedOil | 3,000 | Feb 19, 2004 | 1 | Jul 2013 |
| Bramlet a #742-093-31479 | Formation Recovery LLC | ComancheBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,000 | May 11, 1999 | 1 | Jan 2017 |
| Spence #142-049-33532 | Formation Recovery LLC | BrownBbb&c BLK.3 (Marble Falls) | Temporarily abandonedGas | 2,902 | Jan 26, 1984 | 2 | Dec 2016 |
| I.w.robertson Estate #1A42-093-80168 | White Horse Oil Company | ComancheBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,000 | Jan 5, 1983 | 1 | — |
| Lee Weldon #342-049-32590 | KLH Oil & Gas Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedOil | 3,200 | Dec 31, 1980 | 1 | — |
| Barr C.A. #242-049-32336 | KLH Oil & Gas Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,000 | May 27, 1980 | 1 | — |
| Lee Weldon #142-049-32298 | KLH Oil & Gas Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,200 | Apr 7, 1980 | 1 | — |
| Maxwell #142-093-30684 | Maxwell Rex | ComancheBbb&c BLK.3 (Marble Falls) | PluggedOil | 3,400 | Oct 15, 1979 | 1 | May 2004 |
| Bramlet a #242-093-30663 | Formation Recovery LLC | ComancheBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,400 | Sep 6, 1979 | 1 | Jan 2017 |
| Bramlet B #142-093-30660 | Formation Recovery LLC | ComancheBbb&c BLK.3 (Marble Falls) | PluggedOil | 3,400 | Aug 23, 1979 | 1 | Aug 2007 |
| Robertson Heirs #142-093-30633 | Sequoia Energy Resources | ComancheBbb&c BLK.3 (Marble Falls) | Temporarily abandonedGas | 3,160 | Apr 27, 1979 | 1 | Sep 1998 |
| West a #142-093-30580 | Bryco Gas Co. | ComancheBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,100 | Nov 21, 1978 | 1 | — |
| Maxwell #342-093-30578 | Maxwell Rex | ComancheBbb&c BLK.3 (Marble Falls) | Shut inOil | 3,247 | Nov 8, 1978 | 1 | May 2004 |
| Bramlet a #142-093-30521 | Formation Recovery LLC | ComancheBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,750 | Dec 29, 1977 | 1 | Feb 2017 |
| Lee Weldon #242-049-31540 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,875 | Oct 19, 1977 | 1 | Aug 2026 |
| Lee Weldon #142-049-31473 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 3,200 | Sep 23, 1977 | 1 | Aug 2026 |
| Palmore J.B. #142-049-31474 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,880 | Jul 12, 1977 | 1 | Aug 2026 |
| Palmore J.B. #342-049-31479 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveOil | 2,866 | Jul 12, 1977 | 1 | Aug 2026 |
| Palmore J.B. #242-049-31480 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveOil | 2,938 | Jul 12, 1977 | 1 | Aug 2026 |
| Ringhoffer A. H. #642-049-31472 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,903 | Jul 7, 1977 | 1 | Aug 2026 |
| Woods Maudie a #142-049-31457 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,850 | Jun 21, 1977 | 1 | Aug 2026 |
| Ringhoffer A. H. #542-049-31454 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,861 | Jun 17, 1977 | 1 | Aug 2026 |
| Nunnally T.R. #142-049-31374 | Santa Anna Energy Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | 3,500 | Jun 14, 1977 | 1 | — |
| Ringhoffer A. H. #342-049-31440 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,800 | Jun 6, 1977 | 1 | Aug 2026 |
| Spence Robert J. #142-049-30898 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | — | — | 0 | — |
| Moore Ben H #142-049-30908 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveOil | 3,363 | — | 0 | — |
| Spence Robert J. #242-049-30918 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,922 | — | 0 | — |
| Rankin Ray #142-049-30930 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,890 | — | 0 | — |
| Wright Bess L. a #142-049-30937 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | — | — | 0 | — |
| Spence Robert J. #342-049-30961 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,891 | — | 0 | — |
| Lester Unit #142-049-30969 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,880 | — | 0 | — |
| Moore Ben H #242-049-30973 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveOil | 2,900 | — | 0 | — |
| Murphree W.E. a #142-049-30979 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,930 | — | 0 | — |
| Moore Ben H #342-049-30986 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveOil | 3,045 | — | 0 | — |
| Rankin Ray #242-049-30989 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,875 | — | 0 | — |
| Woods H.T. #142-049-30996 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,860 | — | 0 | — |
| Wright Bess L. #142-049-31000 | Bayou Operating Company Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,950 | — | 0 | — |
| Moore Ben H #442-049-31009 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | Not on scheduleOil | — | — | 0 | — |
| Newman Thomas #142-049-31026 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,851 | — | 0 | — |
| Murphree W.E. a #242-049-31029 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,880 | — | 0 | — |
| Wood Maudie #142-049-31058 | Southwest Gas Systems Inc. | BrownBrown County Regular | ActiveGas | 3,850 | — | 0 | — |
| Taylor #142-049-31118 | Wylie Jerry E. Oil Drilling Co. | BrownBbb&c BLK.3 (Marble Falls) | Not on scheduleOil | — | — | 0 | — |
| Taylor #242-049-31149 | Wylie Jerry E. Oil Drilling Co. | BrownBbb&c BLK.3 (Marble Falls) | Not on scheduleOil | — | — | 0 | — |
| Williams Willie #242-049-31163 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,885 | — | 0 | — |
| Newman Thomas #242-049-31207 | Wilson Well Service Inc. | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | — | — | 0 | — |
| Spence A. P. #342-049-31211 | Pickett Oil Company | BrownBbb&c BLK.3 (Marble Falls) | PluggedGas | — | — | 0 | — |
| Murphree W.E. a #342-049-31219 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,960 | — | 0 | — |
| Lester Unit #242-049-31246 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,850 | — | 0 | — |
| Williams Willie #442-049-31247 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,838 | — | 0 | — |
| Rankin Ray #342-049-31250 | Southwest Gas Systems Inc. | BrownBbb&c BLK.3 (Marble Falls) | ActiveGas | 2,900 | — | 0 | — |