| Thomas & Whittington O-1-3615 | B. J. P. Operating only | Dunlap | Caldwell | 28 | 229K | 261K | Jan 1993 – Apr 2026 |
| Whittington, Otis O-7-8409 | Linder, John Operating Co., LLC only | East Texas | Rusk | 7 | 126K | 18.7K | Jan 1993 – Apr 2026 |
| Cory, Clara O-13-27359 | Whittington Energy Co. only | Walnut Bend, N. (Canyon-Strawn) | Cooke | 2 | 85K | 62.9K | Jan 1993 – Jun 2021 |
| Church, C. B. O-7-8457 | Whittington, G. R. Estate only | East Texas | Gregg | 1 | 60.9K | 19.9K | Jan 1993 – Jan 2002 |
| Bentsen-Whittington GU1 G-4-180445 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 59.9K | 5.22M | Dec 2000 – Apr 2026 |
| Thomas & Whittington Fee O-1-3684 | Shefts & Shefts, Inc. only | Dunlap | Caldwell | 16 | 54.3K | 39.7K | Jan 1993 – Apr 2026 |
| Bentsen-Whittington GU1 G-4-182355 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 46.2K | 5.81M | Mar 2001 – Apr 2026 |
| Bentsen-Whittington GU1 G-4-125864 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 36.3K | 3.56M | Jan 1993 – Apr 2026 |
| Bentsen-Whittington GU1 G-4-186040 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 35.1K | 414K | Jul 2001 – Dec 2017 |
| State of Texas Tr. 284 O-4-9216 | Whittington Operating Company only | Potrero Lopena (7450) | Kenedy | 1 | 32.8K | 203K | Jan 1993 – Oct 2000 |
| Whittington O-1-19390 | CML Exploration, LLC only | Pena Creek (Georgetown) | Zavala | 1 | 24.6K | 531 | Jul 2018 – Apr 2026 |
| Thomas & Whittington -B- O-1-521 | B. J. P. Operating only | Dunlap | Caldwell | 6 | 22.7K | 26.6K | Jan 1993 – Apr 2026 |
| Kuretsch, Raymond O-2-8428 | Whittington Operating Company only | Ganado, West (5500 Duke -A-) | Jackson | 1 | 21.8K | 0 | Feb 1999 – May 2000 |
| Whittington G-2-224964 | Ventex Operating Corp. only | Saint Armo (Mackhank) | Goliad | 1 | 16.9K | 685K | Jul 2006 – Jul 2011 |
| Thomas & Whittington -D- O-1-8064 | Buonadonna Oil LLC only | Dunlap | Caldwell | 7 | 16.6K | 19.6K | Jan 1993 – Apr 2026 |
| Whittington G-2-190498 | Ventex Operating Corp. only | Goliad, West (Wilcox 12,180) | Goliad | 1 | 12K | 1.7M | Apr 2002 – Mar 2017 |
| Whittington -D- O-1-13040 | R & S Oil Production Co. only | Dunlap | Caldwell | 2 | 11.8K | 52 | Jan 1993 – May 2008 |
| Whittington J.C. O-8-13908 | Pearson, Lee Roy III only | Eastland County Regular | Eastland | 3 | 10.6K | 5.83K | Jan 1993 – Sep 2004 |
| Bentsen-Whittington GU1 G-4-188520 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 9.16K | 768K | Apr 2002 – Apr 2026 |
| Bentson-Whittington GU 1 G-4-190481 | Merit Energy Company only | Alvarado (Vicksburg) | Starr | 1 | 7.32K | 441K | Aug 2002 – Feb 2018 |
| Kuretsch, Raymond O-2-8542 | Whittington Operating Company only | Ganado, West (5400 Zone) | Jackson | 1 | 4.17K | 0 | Jun 2000 – Nov 2000 |
| Felderhoff Consolidated O-13-29971 | Whittington Energy Co. only | Gatewood | Cooke | 4 | 3.93K | 47 | Dec 2001 – Nov 2016 |
| Fisher-Garrett O-3-15286 | Whittington Operating Company only | Liberty, South | Liberty | 1 | 2.31K | 16.1K | Jan 1993 – Oct 1995 |
| Thomas & Whittington O-1-3895 | Eagle Ford Oil Co., Inc. only | Dunlap | Caldwell | 3 | 1.94K | 1.62K | May 1993 – Oct 2014 |
| Whittington G-2-183236 | Cico Oil & Gas Company only | Goliad, West (Wilcox) | Goliad | 1 | 1.79K | 115K | Feb 2001 – May 2002 |
| Whittington O-13-30642 | Jones Energy, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 1.54K | 5.16K | Jul 2006 – Feb 2010 |
| J. L. Bell Gas Unit G-4-193541 | Arriola Operating & Consltg Inc. only | Hidalgo (Whittington 7900) | Hidalgo | 1 | 1.53K | 559K | Feb 2003 – Jul 2007 |
| Whittington O-8-16682 | Reo Operating LLC only | Glen Cove, E. (Gardner) | Coleman | 1 | 563 | 5.86K | Jan 1993 – May 2024 |
| Savage Unit "A" G-4-152837 | PI Energy, Inc. only | Hidalgo (Whittington 7900) | Hidalgo | 1 | 415 | 138K | Jan 1995 – Jun 1996 |
| Hatch, G. W., Etal O-4-6558 | Whittington Operating Company only | Corpus Christi (11,850) | Nueces | 1 | 397 | 15 | Jan 1993 – May 1994 |
| Stewart-Whittington O-8-22354 | Richey, Ray Management Co., Inc. only | Reb (Marble Falls) | Eastland | 2 | 318 | 47.1K | Jan 1993 – Apr 1996 |
| Stewart-Whittington G-8-146238 | Texxol Operating Company, Inc. only | Reb (Marble Falls) | Eastland | 1 | 297 | 172K | Aug 1993 – Sep 2019 |
| Whittington G-5-174900 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 257 | 1.46M | Jul 1999 – Apr 2026 |
| Whittington G-5-205541 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 195 | 1.29M | Aug 2004 – Apr 2026 |
| Whittington G-5-166132 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 193 | 1.27M | Sep 1997 – Jan 2024 |
| Whittington G-5-171424 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 192 | 1.38M | Nov 1998 – Apr 2026 |
| Whittington G-5-188740 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 116 | 863K | Mar 2002 – Apr 2025 |
| Whittington G-5-176280 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 114 | 1.44M | Dec 1999 – Jul 2016 |
| Whittington O-8-19013 | Arabie, Inc. only | Glen Cove, S. (Palo Pinto) | Coleman | 2 | 87 | 5.88K | Jan 1993 – Aug 2017 |
| Whittington G-5-188734 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 78 | 1.1M | Apr 2002 – Apr 2026 |
| Whittington "A" O-8-18034 | Arabie, Inc. only | Glen Cove, E. (Gardner) | Coleman | 1 | 63 | 5.86K | Jan 1993 – Mar 1998 |
| Whittington G-5-200429 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 62 | 1.08M | Jan 2004 – Apr 2026 |
| Whittington G-5-204212 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 62 | 597K | Mar 2004 – Apr 2026 |
| Whittington G-8-129047 | Sequoia Energy Resources only | Eastland County Regular | Eastland | 1 | 23 | 6.52K | Jan 1993 – Nov 2002 |
| Whittington G-5-204857 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 16 | 711K | Jul 2004 – Mar 2026 |
| Whittington-Moore G-8-128765 | Pearson, Lee Roy III only | Reb (Marble Falls) | Eastland | 1 | 8 | 17.1K | Jan 1993 – Apr 1996 |
| Stewart-Whittington G-8-158068 | Texxol Operating Company, Inc. only | Reb (Marble Falls) | Eastland | 1 | 5 | 125K | Apr 1996 – Sep 2019 |
| Whittington G-2-221086 | Ventex Operating Corp. only | Herndon (3200 Frio) | Goliad | 1 | 3 | 138K | Jun 2006 – Oct 2015 |
| Hamon Heirs O-2-4784 | Whittington Operating Company only | Ganado, West (4700 Zone) | Jackson | 2 | 0 | 0 | — |
| Kuretsch, R. O-2-7151 | Whittington Operating Company only | Ganado, West | Jackson | 1 | 0 | 0 | — |