| Gilliam, C. J. O-13-19688 | Assent Energy Partners, LLC only | Red River (Miss) | Hardeman | 5 | 345K | 195K | Jan 1993 – Jul 2026 |
| Gilliam O-13-33847 | Mito Resources TX LLC only | Groesbeck Creek (Chappel) | Hardeman | 1 | 58.5K | 611 | Sep 2018 – Jul 2026 |
| Carter, Nettie O-13-12804 | Gilliam Partners, L.P. only | Jack County Regular | Jack | 35 | 56.3K | 103 | Jan 1993 – Jul 2026 |
| Gilliam O-1-11579 | Brazos Geological Consulting LT only | Ginny Johnson (Navarro A) | Milam | 2 | 28.8K | 39.4K | Jan 1993 – Jul 2026 |
| Gilliam O-1-17833 | Brazos Geological Consulting LT only | Midway (2300 Oil) | Milam | 4 | 28.5K | 14.5K | Feb 2013 – Jul 2026 |
| Gilliam O-2-8161 | Hyquest Energy, Inc. only | Bonnie View (Frio 5700) | Refugio | 1 | 27.1K | 11.5K | Mar 1996 – Mar 2007 |
| Gilliam, I. E. O-6-13160 | BRG Lone Star Ltd. only | Chapel Hill (Pettit) | Smith | 1 | 15.5K | 373K | Apr 1993 – Sep 2021 |
| Moore O-13-3297 | Gilliam Partners, L.P. only | Jack County Regular | Jack | 25 | 15.2K | 20 | Jan 1993 – Jul 2026 |
| Monohan O-13-28530 | Gilliam Partners, L.P. only | Archer County Regular | Archer | 16 | 10.3K | 70 | Mar 1993 – Jul 2026 |
| Covington -B- O-13-3332 | Gilliam Partners, L.P. only | Jack County Regular | Jack | 15 | 9.94K | 63 | Jan 1993 – Jul 2026 |
| Ector Fee Unit O-10-19819 | Gilliam's Aghorn Energy only | Harper, SE. (Ellen.) | Ector | 2 | 8.38K | 20K | Jan 1993 – Aug 1995 |
| Gilliam O-6-11517 | BRG Lone Star Ltd. only | Chapel Hill (Travis Peak) | Smith | 1 | 6.78K | 40.5K | Jan 1993 – Sep 2021 |
| Gilliam, I.E. O-6-14415 | Atlas Operating LLC only | Chapel Hill (Cotton Valley) | Smith | 1 | 5.87K | 226K | Jul 2005 – Jul 2026 |
| Gilliam, C. J. O-13-33053 | Assent Energy Partners, LLC only | Red River (Atoka Conglomerate) | Hardeman | 1 | 3.43K | 27.7K | Nov 2010 – Jul 2026 |
| Monohan, E. S. O-13-333 | Gilliam Partners, L.P. only | Archer County Regular | Archer | 7 | 2.66K | 78 | Jan 1993 – Jul 2026 |
| Gilliam, I. E. O-6-11550 | Formation Resour Field Svcs, LLC only | Chapel Hill (Travis Peak) | Smith | 1 | 205 | 1.22K | Jan 1993 – Jul 2026 |
| Moore, John A. O-13-3282 | Gilliam, Frank only | Jack County Regular | — | 5 | 130 | 0 | Jan 1993 – Jul 2026 |
| Gilliam, et Al O-6-5995 | Trico Oil & Gas Inc. only | Panola | Panola | 2 | 112 | 21 | Jan 1993 – Jul 2026 |
| Gilliam "C" No. 1 Gas Unit G-5-149583 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Freestone | 1 | 0 | 777K | Apr 1994 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-149546 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Freestone | 1 | 0 | 1.68M | Feb 1994 – Jul 2026 |
| Gilliam "C" G-5-117288 | Hilcorp Energy Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 92.2K | Jan 1993 – Jul 2026 |
| Gilliam "C" G-5-148438 | Marathon Oil Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 351K | Dec 1993 – May 1996 |
| Gilliam "C" No. 1 Gas Unit G-5-156218 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Freestone | 1 | 0 | 1.4M | Sep 1995 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-156082 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Limestone | 1 | 0 | 650K | Aug 1995 – May 2026 |
| Gilliam, J.A. GU II G-5-158083 | Hilcorp Energy Company only | Oaks (Cotton Valley-Travis Peak) | Freestone | 1 | 0 | 1.41M | Feb 1996 – Jul 2026 |
| Gilliam, J.A. GU II G-5-161095 | Hilcorp Energy Company only | Oaks (Cotton Valley-Travis Peak) | Freestone | 1 | 0 | 1.92M | Oct 1996 – Jul 2026 |
| Gilliam, J.A. GU II G-5-182898 | Hilcorp Energy Company only | Oaks (Cotton Valley-Travis Peak) | Freestone | 1 | 0 | 1.29M | Apr 2001 – Jul 2026 |
| J. A. Gilliam Unit G-5-185941 | Hilcorp Energy Company only | Personville, NE. (Cotton Valley) | Freestone | 1 | 0 | 421K | Oct 2001 – Jul 2026 |
| Gilliam Unit 1 G-5-189940 | Encana Oil & Gas(usa) Inc. only | Freestone (Cotton Valley) | Freestone | 1 | 0 | 109K | Apr 2002 – Feb 2006 |
| Gilliam Unit 1 G-5-190542 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 0 | 2.03M | Aug 2002 – Jul 2026 |
| Gilliam "C" No. 1 Gas Unit G-5-148437 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Freestone | 1 | 0 | 1.42M | Dec 1993 – Jul 2026 |
| Gilliam "B" G-5-113473 | Hilcorp Energy Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 101K | Jan 1993 – Jul 2026 |
| Gilliam, J. A. Unit G-5-69388 | Hilcorp Energy Company only | Personville, NE. (Cotton Valley) | Freestone | 1 | 0 | 229K | Jan 1993 – Jul 2026 |
| Gilliam "B" G-5-154807 | Marathon Oil Company only | Pine Oak Creek, N. (Bossier) | Limestone | 1 | 0 | 268K | Feb 1995 – May 1996 |
| Gilliam "B" No. 1 Gas Unit G-5-154747 | Hilcorp Energy Company only | Oaks (Travis Peak 8550) | Limestone | 1 | 0 | 1.11M | Feb 1995 – Jul 2026 |
| Gilliam "C" G-5-146195 | Marathon Oil Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 530K | Jun 1993 – May 1996 |
| Gilliam, J.A. GU II G-5-154677 | Brown, George R. Partnership,the only | Oaks (Travis Peak 8550) | Freestone | 1 | 0 | 146K | May 1995 – Feb 1996 |
| Gilliam "B" No. 1 Gas Unit G-5-194756 | Hilcorp Energy Company only | Oaks (Cotton Valley Lime) | Limestone | 1 | 0 | 1.98M | Feb 2003 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-194755 | XTO Energy Inc. only | Oaks (Cotton Valley-Travis Peak) | Limestone | 1 | 0 | 0 | Feb 2003 – Feb 2006 |
| Gilliam, J.A. GU II G-5-154672 | Hilcorp Energy Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 1.87M | May 1995 – Jul 2026 |
| Gilliam Unit 1 G-5-198034 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 0 | 1.29M | Oct 2003 – Jul 2026 |
| Gilliam Unit 1 G-5-198092 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 0 | 1.91M | Oct 2003 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-199201 | Hilcorp Energy Company only | Oaks (Cotton Valley-Travis Peak) | Limestone | 1 | 0 | 1.1M | Dec 2003 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-199206 | Hilcorp Energy Company only | Oaks (Cotton Valley Lime) | Limestone | 1 | 0 | 1.77M | Nov 2003 – Jul 2026 |
| Gilliam "B" No. 1 Gas Unit G-5-199207 | XTO Energy Inc. only | Oaks (Cotton Valley-Travis Peak) | Limestone | 1 | 0 | 0 | Nov 2003 – Feb 2006 |
| Gilliam Unit 1 G-5-200005 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 0 | 683K | Dec 2003 – Jul 2026 |
| Gilliam, Haskell D. G.U. No. 1 G-5-201634 | Hilcorp Energy Company only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 0 | 737K | Mar 2004 – Jul 2026 |
| Gilliam, Haskell D. G.U. No. 1 G-5-201635 | XTO Energy Inc. only | Oaks (Cotton Valley-Travis Peak) | Freestone | 1 | 0 | 0 | Mar 2004 – Feb 2006 |
| Gilliam, J.A. Unit G-5-202981 | Hilcorp Energy Company only | Oaks (Cotton Valley Lime) | Limestone | 1 | 0 | 1.91M | Jun 2004 – Jul 2026 |
| Gilliam "B" G-5-145672 | Marathon Oil Company only | Pine Oak Creek, N. (Bossier) | Freestone | 1 | 0 | 419K | Apr 1993 – May 1996 |