| Karen P1 Unit O-9-19882 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 3 | 784K | 4.48M | Feb 2018 – Apr 2026 |
| Karen Unit O-9-19374 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 2 | 699K | 3.04M | Aug 2016 – Apr 2026 |
| Karen O-9-16447 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 9 | 541K | 1.47M | Dec 2007 – Apr 2026 |
| Karen Kennedy Unit B G-2-271125 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 360K | 4.71M | Oct 2013 – Apr 2026 |
| Karen Fee 17 G-10-277679 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 311K | 4.4M | Apr 2015 – Apr 2026 |
| Karen O-9-16478 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 3 | 293K | 487K | Dec 2007 – Apr 2026 |
| Karen -A- O-14-1677 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 3 | 160K | 6.75K | by Jan 1993 – Apr 2026 |
| Wheeler, Karen O-1-14886 | GTG Operating, LLC only | A.W.P. (Olmos) | McMullen | 6 | 149K | 283K | Dec 2007 – Feb 2026 |
| Karen O-10-34405 | Surge Solutions, Inc. only | Toborg | Pecos | 11 | 143K | 0 | Jan 1995 – Mar 2026 |
| Karen (Occidental) O-10-39193 | West Oil Resources, LLC only | Toborg | Pecos | 28 | 136K | 0 | Nov 2008 – Apr 2026 |
| Karen Wheeler Unit 2 G-1-272014 | BPX Operating Company only | Eagleville (Eagle Ford-1) | McMullen | 1 | 132K | 1.3M | Oct 2013 – Apr 2026 |
| Karen Kennedy Unit B G-2-297381 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 131K | 2.04M | Sep 2022 – Mar 2026 |
| Karen Kennedy Unit B G-2-297456 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 123K | 1.93M | Sep 2022 – Apr 2026 |
| Karen Wheeler Unit 2 G-1-274701 | BPX Operating Company only | Eagleville (Eagle Ford-1) | McMullen | 1 | 122K | 1.27M | Oct 2013 – Apr 2026 |
| Karen Wheeler Unit 1 G-1-270652 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 117K | 980K | Feb 2013 – Apr 2023 |
| Karen Wheeler Unit 1 G-1-273535 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 115K | 1.04M | Oct 2013 – Apr 2026 |
| Karen Wheeler Unit 1 G-1-273420 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 115K | 908K | Oct 2013 – Apr 2026 |
| Karen "A" O-9-16883 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 3 | 95.3K | 181K | Jan 2009 – Apr 2026 |
| Wheeler, Karen -A- O-1-4868 | GTG Operating, LLC only | Wheeler (Olmos) | McMullen | 2 | 95.2K | 141K | by Jan 1993 – Jan 2023 |
| Karen Kennedy Unit A G-2-272854 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 78.4K | 4.52M | Jun 2014 – Jun 2025 |
| Karen Wheeler G-1-266131 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 74.1K | 1.61M | Apr 2012 – Apr 2026 |
| Wheeler, Karen et Al O-1-9402 | Welhausen Operating Company, LP only | Wheeler (Olmos) | McMullen | 4 | 73.9K | 49.4K | by Jan 1993 – Feb 2008 |
| Meek, Karen 71 G-14-267215 | Mmgl Txph, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 37K | 2.07M | Jul 2011 – Apr 2026 |
| Dougherty, James R. -K- O-4-2058 | Quinn, Karen only | Parilla (2200 Sand) | Duval | 2 | 31.2K | 21 | by Jan 1993 – Dec 2013 |
| Karen O-14-1602 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 1 | 29.2K | 4.5K | by Jan 1993 – Jan 2018 |
| Karen Kennedy Unit A G-2-298231 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 28.9K | 1.39M | Feb 2024 – Apr 2026 |
| Luecke, Karen O-3-12561 | Tex-Lee Operating Company only | Giddings (Austin Chalk-3) | Lee | 2 | 27.8K | 752K | by Jan 1993 – Apr 2026 |
| Karen Kennedy Unit A G-2-298235 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 23.8K | 1.35M | Feb 2024 – Apr 2026 |
| Karen Kennedy Unit A G-2-298233 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 21.2K | 1.32M | Feb 2024 – Apr 2026 |
| Karen Kennedy Unit A G-2-297801 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 18.8K | 1.2M | Feb 2024 – Apr 2026 |
| Karen Kennedy Unit A G-2-266284 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 17.9K | 1.87M | Oct 2012 – Apr 2026 |
| Karen Kennedy Unit A G-2-298234 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 16.6K | 1.33M | Feb 2024 – Apr 2026 |
| Karen Kennedy Unit A G-2-298236 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Bee | 1 | 15.9K | 1.42M | Feb 2024 – Apr 2026 |
| University Karen O-10-56544 | Bam Permian Operating, LLC only | University 31 West (U. Devonian) | Crane | 1 | 10.2K | 32.8K | Oct 2021 – Apr 2026 |
| Karen O-14-44 | Ponderosa TX Operating LLC only | Panhandle Carson County Field | Carson | 7 | 9.01K | 135K | by Jan 1993 – Sep 2019 |
| Meek, Karen G-14-205491 | Tecolote Energy Operating, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 6.58K | 297K | Sep 2004 – Jul 2011 |
| Meek, Karen 71 G-14-208962 | Mmgl Txph, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 5.17K | 226K | Jul 2004 – Mar 2015 |
| Roudon O-2-11109 | B.P. Productions Inc. only | Karen Beauchamp (Yegua 4747) | Goliad | 1 | 2.85K | 13.4K | Feb 2015 – Sep 2016 |
| Karen Ann G-3-163064 | Cox & Perkins Exploration, Inc. only | Hillje, N. (5050) | Wharton | 1 | 1.57K | 822K | Aug 1996 – Oct 2000 |
| Karen Wheeler G-1-268411 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 1.36K | 1.5M | Dec 2012 – Apr 2026 |
| Karen Terrell O-1-14729 | Sheldon Resources, L.P. only | Cherokee (Navarro) | Milam | 1 | 602 | 0 | Jul 2006 – Dec 2013 |
| Karen O-1-13089 | U. S. Operating, Inc. only | Thirteen, W. (Olmos 3450) | Dimmit | 1 | 519 | 822 | by Jan 1993 – Jun 1993 |
| Reid, Karen G-5-227313 | Diversified Production LLC only | Bald Prairie (CV Consolidated) | Robertson | 1 | 433 | 14.1M | Mar 2007 – Apr 2026 |
| Karen O-9-11275 | Sha-Jam Operating Corp. only | Menard, W. (Palo Pinto) | Menard | 1 | 376 | 20 | by Jan 1993 – Oct 1994 |
| Harris Unit O-1-13604 | Karenco Energy, Incorporated only | Jayeddie, South | Guadalupe | 1 | 355 | 8 | by Jan 1993 – Aug 1993 |
| Gohlke G-2-188648 | Houston Gulf Energy Corporation only | Karen Beauchamp (1650) | Goliad | 1 | 18 | 12.4K | Nov 2001 – Jun 2002 |
| Fly, D. G-2-184295 | Westport Oil and Gas Company, LP only | Karen Beauchamp (2600) | Goliad | 1 | 10 | 131K | May 2001 – Sep 2003 |
| Loehr G-2-232508 | Geiser Operating, Inc. only | Karen Beauchamp (3000) | Goliad | 1 | 7 | 211K | Oct 2007 – Dec 2010 |
| Shipley, Karen GU G-13-231117 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1 | 1.33M | May 2007 – Jun 2023 |
| Gohlke, M. F. G-2-96748 | Laguna Oil & Gas Corp. only | Karen Beauchamp (2500) | Goliad | 1 | 1 | 30.8K | Jun 1994 – Nov 1999 |