| Yturria L&C Co. NCT-2 G-4-126935 | Apollo Petro Fuels LLC only | Raymondville (Consolidated) | Willacy | 1 | 1.58K | 1.09M | by Jan 1993 – Dec 2024 |
| Smith, Mary O-13-28706 | Raylee Operating Company only | Barnett (Marble Falls, Oil) | Young | 1 | 1.58K | 21.4K | Feb 1994 – Feb 2005 |
| Edwards, W. P. G-10-172118 | Citation Oil & Gas Corp. only | Waddell (Grayburg) | Crane | 1 | 1.58K | 30.5K | Dec 1998 – Feb 2003 |
| Coates Energy Trust et Al G-4-130863 | Magnum Engineering Company only | Rincon, North (Stray 3300) | Starr | 1 | 1.58K | 98.3K | by Jan 1993 – Apr 1998 |
| Ray O-13-17338 | Burk Royalty Co., Ltd. only | Morris (Consolidated Congl.) | Wise | 1 | 1.57K | 8 | Aug 1993 – Mar 2009 |
| Wolters, R. A. O-9-5551 | Kindred Petroleum Company only | John Scott (Grayburg) | Reagan | 1 | 1.56K | 28 | by Jan 1993 – Jun 1998 |
| Bray O-3-27548 | Contrast Energy, LLC only | Fort Trinidad (Dexter) | Houston | 1 | 1.56K | 1.08K | Jul 2018 – Jul 2020 |
| Texfel-Harrell G-8-148362 | Richey, Ray Management Co., Inc. only | Reb (Marble Falls) | Eastland | 1 | 1.56K | 13.6K | Feb 1994 – Sep 1995 |
| McMurray, C. G-13-99780 | Texxol Operating Company, Inc. only | Alvord, South (Atoka) | Wise | 1 | 1.56K | 1.07M | by Jan 1993 – Aug 2026 |
| State Tract 42 G-2-235574 | Chesapeake Operating, Inc. only | Maude B. Traylor (F-41-61, Deep) | Calhoun | 1 | 1.55K | 148K | Apr 2008 – Aug 2008 |
| Ray, Lee G-8-171023 | Cumming Company, Inc. The only | Lee Ray (Caddo) | Stephens | 1 | 1.55K | 14.1K | Nov 1998 – Sep 1999 |
| Plaster O-13-27659 | Herring, Ray only | Jack County Regular | Jack | 1 | 1.53K | 46 | by Jan 1993 – Jan 1999 |
| Lloyd O-14-5042 | Adobe Operating Company only | Panhandle Gray County Field | Gray | 4 | 1.52K | 21 | by Jan 1993 – Feb 1996 |
| Wray, Jimmie et Al O-13-20217 | Remington Oil only | Young County Regular | Young | 4 | 1.51K | 22 | by Jan 1993 – Apr 1995 |
| Pembrook -A- O-9-4492 | Endeavor Energy Resources L.P. only | John Scott (Grayburg) | Reagan | 3 | 1.51K | 56 | by Jan 1993 – Mar 2001 |
| Yturria, H. G-4-201305 | Apollo Petro Fuels LLC only | Raymondville (Consolidated) | Willacy | 1 | 1.5K | 485K | Mar 2004 – Oct 2021 |
| Gray O-13-28665 | Exorare Energy, Inc. only | Clay County Regular | Clay | 1 | 1.49K | 24 | Sep 1993 – Aug 1995 |
| Traylor, Maude B. G-2-126871 | Meridian Oil Production Inc. only | Maude B. Traylor, North (84) | Calhoun | 1 | 1.49K | 114K | by Jan 1993 – Feb 1994 |
| Crawford, C. E. G-13-166678 | Richey, Ray Management Co., Inc. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 1.49K | 310K | Jan 1998 – Nov 2007 |
| Haun, Elena et Al G-2-120554 | Apache Corporation only | Gun Point (Wilcox Lower, Gray) | De Witt | 1 | 1.48K | 2.74M | by Jan 1993 – Jan 1999 |
| State Tract 59 G-2-229647 | Remora Operating, LLC only | Maude B. Traylor (F-41-61, Deep) | Calhoun | 1 | 1.48K | 43.5K | Feb 2007 – Oct 2014 |
| Praying Mantis G-13-227181 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Hood | 1 | 1.47K | 193K | Apr 2007 – Mar 2011 |
| Brown, W.L. et Al O-8-13315 | Delray Oil, Inc. only | Coleman County Regular | Coleman | 4 | 1.47K | 21.5K | by Jan 1993 – Sep 2011 |
| Cook G-14-184306 | Raydon Exploration, Inc. only | Laketon (Delp) | Gray | 1 | 1.46K | 74.6K | Jun 2001 – Dec 2001 |
| Ray "A" G-10-177002 | Range Production Company only | Conger (Penn) | Sterling | 1 | 1.46K | 54.2K | Apr 2000 – Sep 2011 |
| Morgan-Sunray O-4-14040 | Welder Exploration & Prod., Inc. only | Jaboncillos (Stillwell) | Duval | 1 | 1.46K | 113K | Feb 2017 – Dec 2017 |
| Eaton-Williams G-10-136405 | Soil Energy, Inc. only | T. C. I. (Grayburg Zone) | Pecos | 1 | 1.45K | 1.11M | by Jan 1993 – Aug 2026 |
| Williamson Unit G-6-181266 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.45K | 181K | Dec 2000 – Aug 2026 |
| Anp -176- O-8-28204 | Richey, Ray Management Co., Inc. only | Throckmorton L&C 116 (Miss.) | Throckmorton | 3 | 1.45K | 431 | May 1997 – Aug 1997 |
| Ray "A" G-10-140922 | Wagner & Brown, Ltd. only | Conger (Penn) | Sterling | 1 | 1.44K | 124K | by Jan 1993 – Jan 1997 |
| Traylor, Maude B. G-2-203117 | Silverbrook Operating, LLC only | Maude B. Traylor (7500) | Calhoun | 1 | 1.44K | 109K | Apr 2004 – Aug 2026 |
| Holzheauser G-2-202849 | Brayton Operating Corp. only | Inez (Yegua 9060) | Victoria | 1 | 1.43K | 175K | Jan 2004 – Apr 2008 |
| State University -AO- O-10-37216 | XTO Energy Inc. only | Triple-N (Grayburg) | Andrews | 2 | 1.43K | 634 | Oct 2003 – Apr 2004 |
| Sells, Traylor D. G-2-142466 | Kaiser-Francis Oil Company only | Kellers Creek, S. (7530) | Calhoun | 1 | 1.43K | 126K | by Jan 1993 – Dec 1994 |
| Pierce Sunray G-9-153247 | Scout Energy Management LLC only | Ozona (Canyon Sand) | Crockett | 1 | 1.43K | 408K | Jan 1995 – Jan 2019 |
| Bryan Estate #1 O-9-12737 | Ducky Oil Corporation only | Wingate, NW (Gray) | Runnels | 1 | 1.42K | 21 | by Jan 1993 – Sep 1994 |
| Cross -A- O-10-13437 | R. K. G. Engineering, Inc. only | Moss (Grayburg) | Ector | 2 | 1.42K | 20 | by Jan 1993 – Aug 1995 |
| Dean, Hollis O-9-10497 | Dean, John Hollis only | Fritzess (Gray Sand) | Runnels | 2 | 1.42K | 9.86K | by Jan 1993 – Feb 1995 |
| Hutchings, J. Unit G-6-232070 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.42K | 1.78M | Aug 2007 – Aug 2026 |
| Marlett, T. W. et Al O-13-17940 | Richey, Ray Management Co., Inc. only | Chico, West (Conglomerate 5700) | Wise | 1 | 1.41K | 141K | by Jan 1993 – May 1998 |
| Sabine G-3-158663 | Famcor Oil, Inc. only | Patrick P. Ray (Wilcox 10,000) | Montgomery | 1 | 1.41K | 83K | Jan 1996 – Dec 1996 |
| Nixon & Dillard -E- O-1-9082 | Wooldridge Oil & Gas only | Fair Ray | Frio | 3 | 1.41K | 15 | by Jan 1993 – Apr 1994 |
| Gray Gas Unit G-6-177774 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.41K | 1.29M | May 2000 – Nov 2013 |
| Willis, S. -A- O-13-18572 | Raylee Operating Company only | Wil-Nat (3200) | Jack | 1 | 1.41K | 2.17K | by Jan 1993 – Jun 2003 |
| Welder "B" G-2-144266 | TE-Ray Resources, Inc. only | Heyser, SE. (6250) | Calhoun | 1 | 1.4K | 124K | by Jan 1993 – Apr 1996 |
| Spade Ranch 1 O-10-46570 | Crownquest Operating, LLC only | Ray Albaugh (Wolfcamp) | Mitchell | 1 | 1.4K | 8 | Feb 2015 – Mar 2016 |
| Bobby O-14-5056 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 2 | 1.4K | 169K | by Jan 1993 – Dec 2013 |
| Allyn O-8-18785 | Masters Rat Hole Service, Inc. only | Allyn (Gray) | Taylor | 1 | 1.39K | 14K | Jul 1994 – Sep 1997 |
| Taylor "F" G-13-206715 | Richey, Ray Management Co., Inc. only | Newark, East (Barnett Shale) | Wise | 1 | 1.37K | 304K | Jan 2005 – Feb 2011 |
| Minor, A. Gas Unit G-6-249656 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.37K | 1.07M | Jun 2009 – Aug 2026 |