| Settles, W. R. -A- O-10-2704 | Conocophillips Company only | Howard Glasscock | Howard | 138 | 3.07M | 72.3K | by Jan 1993 – Nov 2011 |
| Settles, W. R. -A- O-10-41251 | Citation Oil & Gas Corp. only | Howard Glasscock (Consolidated) | Howard | 118 | 1.82M | 91.7K | Dec 2011 – Aug 2026 |
| Settles, W. R. O-10-41250 | Citation Oil & Gas Corp. only | Howard Glasscock (Consolidated) | Howard | 76 | 1.55M | 85.7K | Dec 2011 – Aug 2026 |
| Settles,w.r. O-10-23286 | Endeavor Energy Resources L.P. only | Howard Glasscock | Howard | 69 | 1.54M | 70.2K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-2706 | Conocophillips Company only | Howard Glasscock | Howard | 62 | 1.35M | 59.2K | by Jan 1993 – Nov 2011 |
| Settles-Yates Unit O-10-20060 | Conocophillips Company only | Howard Glasscock | Howard | 84 | 1.08M | 34.3K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-2825 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 24 | 971K | 9.18K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-41272 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 47 | 431K | 0 | Dec 2011 – Aug 2026 |
| Settles, W. R. -A- O-10-10445 | Wash, Robert C. Inc. only | Howard Glasscock | Howard | 14 | 234K | 118 | by Jan 1993 – Nov 2011 |
| Settles -a- & -B- O-10-2816 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 4 | 230K | 3.95K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-41059 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 21 | 213K | 35 | Dec 2011 – Aug 2026 |
| Settles -D- O-10-18985 | Sheridan Production Company, LLC only | Howard-Glasscock (Glorieta) | Howard | 2 | 191K | 1.44K | by Jan 1993 – Nov 2011 |
| Settles -D- O-10-2734 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 21 | 175K | 7.85K | by Jan 1993 – Mar 2011 |
| Settles O-10-2740 | Wash, Robert C. Inc. only | Howard Glasscock | Howard | 4 | 148K | 149 | by Jan 1993 – Nov 2011 |
| Settles, W. R. -B- O-10-2705 | Conocophillips Company only | Howard Glasscock | Howard | 11 | 133K | 4.65K | by Jan 1993 – Nov 2011 |
| Settles-Yates Unit O-10-41256 | Conocophillips Company only | Howard Glasscock (Consolidated) | Howard | 34 | 131K | 1.05K | Dec 2011 – Aug 2014 |
| Settles -D- O-10-41060 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 15 | 125K | 0 | Dec 2011 – Aug 2026 |
| Settles -A- O-10-2731 | Legacy Reserves Operating LP only | Howard Glasscock | Howard | 8 | 122K | 187 | by Jan 1993 – Nov 2011 |
| Settles, W. R. -C- O-10-10806 | Conocophillips Company only | Howard Glasscock | Howard | 24 | 102K | 8.18K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-19040 | Sheridan Production Company, LLC only | Howard-Glasscock (Glorieta) | Howard | 4 | 100K | 127 | by Jan 1993 – May 2009 |
| Settles, W. R. -A- O-10-2729 | Taylor Two Energy, LLC only | Howard Glasscock | Howard | 3 | 92.2K | 260 | by Jan 1993 – Sep 2014 |
| Settles -B- O-10-2732 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 13 | 75.9K | 2.84K | by Jan 1993 – Nov 2011 |
| Settles, W. R. -A- O-10-48220 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 11 | 63.6K | 121 | Dec 2011 – Jul 2026 |
| Settles, W. R. -A- O-10-18995 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 5 | 46.8K | 621 | Aug 1994 – Nov 2011 |
| Settles O-10-47958 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 3 | 45.6K | 121 | Dec 2011 – Jul 2026 |
| Settles -A-&-B- O-10-41285 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 4 | 33K | 35 | Dec 2011 – Aug 2026 |
| Settles, W. R. -B- O-10-2730 | Taylor Two Energy, LLC only | Howard Glasscock | Howard | 2 | 24.3K | 259 | by Jan 1993 – Aug 2014 |
| Settles, W.R. -a- TT O-10-47927 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 2 | 21.3K | 88 | Sep 2014 – Jul 2026 |
| Settles -B- O-10-18984 | Aethon I LP only | Howard-Glasscock (Glorieta) | Howard | 1 | 17.1K | 21 | by Jan 1993 – Feb 2000 |
| Settles -B- O-10-41284 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 11 | 16.5K | 35 | Dec 2011 – Aug 2026 |
| Settles 'C' Cities O-10-43841 | Citation Oil & Gas Corp. only | Howard Glasscock (Consolidated) | Howard | 1 | 16.1K | 142 | May 2013 – Jul 2016 |
| Settles West O-10-41643 | RCW Oil, LLC only | Howard Glasscock (Consolidated) | Howard | 3 | 15.7K | 0 | Dec 2011 – Jul 2026 |
| Settles, W. R.-C- O-10-41254 | Conocophillips Company only | Howard Glasscock (Consolidated) | Howard | 11 | 9.33K | 192 | Dec 2011 – Aug 2014 |
| Settles, W. R.-B- O-10-41253 | Conocophillips Company only | Howard Glasscock (Consolidated) | Howard | 5 | 6.93K | 122 | Dec 2011 – Aug 2014 |
| Settles -C- Cities O-10-2733 | Conocophillips Company only | Howard Glasscock | Howard | 3 | 2.01K | 346 | by Jan 1993 – Apr 1994 |
| Settles, W.R. -B- TT O-10-47928 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 2 | 1.12K | 88 | Sep 2014 – Jul 2026 |
| Settles, W. R. "A" O-10-35528 | Wash, Robert C. Inc. only | Howard-Glasscock (Glorieta) | Howard | 1 | 0 | 0 | — |
| Settles A O-10-28030 | Legacy Reserves Operating LP only | Howard-Glasscock (Glorieta) | Howard | 1 | 0 | 0 | — |
| Settles, W.R. "C" O-10-24763 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Glasscock | 1 | 0 | 0 | — |
| Settles, W. R. O-10-48358 | Golden Specialties Oil & Gas only | Howard Glasscock (Consolidated) | Glasscock | 4 | 0 | 0 | — |
| Settles, W. R. O-10-2735 | Golden Specialties Oil & Gas only | Howard Glasscock | Glasscock | 4 | 0 | 2 | Mar 1993 – Jul 1993 |
| Settles, W.R. "B" O-10-41280 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 1 | 0 | 0 | — |