| Keystone Cattle Company G-10-228722 | BCP Resources, LLC only | Keystone, South (Devonian) | Winkler | 1 | 712 | 501K | Jun 2007 – Feb 2018 |
| Reed G-14-101054 | Apache Corporation only | Key (Morrow, Up.) | Wheeler | 1 | 706 | 594K | Jan 1993 – May 2006 |
| Kurth, E. L. G-5-41654 | Spence, Ralph Oil Company, Inc. only | Pokey (Rodessa) | Limestone | 1 | 698 | 25.8K | Jan 1993 – Apr 1995 |
| West Turkey Track G-14-141176 | Plains Exploration & Prod. Co. only | Arrington (Morrow) | Hutchinson | 1 | 691 | 1.36M | Jan 1993 – Apr 2011 |
| Capps, R. T. G-5-184304 | Linn Operating, LLC only | Pokey (Travis Peak Lower 1) | Limestone | 1 | 690 | 357K | Jul 2001 – Aug 2014 |
| Lovett, H. E.-A- O-10-27960 | Finaly Resources LLC only | Keystone (Colby) | Winkler | 2 | 690 | 13.2K | Jan 1993 – Jun 1998 |
| State-Walton 'E' G-10-183074 | Formentera Operations LLC only | Keystone (Consolidated) | Winkler | 1 | 682 | 424K | May 2001 – Jul 2018 |
| Wild Turkey G-5-168081 | Diversified Production LLC only | Pokey (Travis Peak Lower 1) | Limestone | 1 | 674 | 174K | Feb 1998 – Jun 2012 |
| Simons, K. O-2-7511 | Carter Exploration Company only | Buckeye Knoll (Yegua 4760) | Live Oak | 1 | 669 | 542 | Jan 1993 – Jan 1994 |
| McClain -A- G-14-74802 | King Operating Corporation only | Ellis Ranch (Keys) | Ochiltree | 1 | 664 | 298K | Jan 1993 – May 2022 |
| Keystone Cattle Co. O-10-36297 | Bopco, L.P. only | Keystone (Devonian) | Winkler | 1 | 664 | 1.05K | Mar 2000 – Oct 2000 |
| Markey #1 G-6-209855 | Sabine Energy Inc. only | Minden (Cotton Valley Cons.) | Rusk | 1 | 663 | 798K | Mar 2005 – Apr 2026 |
| Paekey "B-13-H" O-13-29569 | Rogers Drilling Co. only | H. F. F. (Caddo) | Archer | 1 | 662 | 0 | Jan 1999 – Oct 1999 |
| Hickey, T. J. O-5-279 | Crow Oil Co. only | Corsicana (Shallow) | Navarro | 10 | 660 | 126 | Jan 1993 – Dec 2003 |
| Lackey G-14-59780 | Kodiak Oil & Gas, Inc. only | Hansford (Morrow, Upper) | Hansford | 1 | 659 | 1.15M | Jan 1993 – Mar 2026 |
| Hickey Estate G-6-191060 | Pedernales Petroleum OP, LLC only | Carthage, North (Cotton Valley) | Panola | 1 | 657 | 1.28M | Dec 2001 – Apr 2026 |
| Ellis Estate O-6-14083 | Key Production Company, Inc. only | Henderson (Rusk Co. Travis Peak) | Rusk | 1 | 650 | 0 | Oct 2001 – May 2002 |
| Hoard, Kate Mrs. et Vir G-6-65568 | Key Energy of Colorado, Inc. only | Paxton (Hill) | Panola | 1 | 643 | 267K | Jan 1993 – Jan 2008 |
| Motley, Luke G-6-149082 | Key Production Company, Inc. only | Carthage (Pettit, Lower Gas) | Panola | 1 | 642 | 77.4K | Mar 1994 – Dec 1996 |
| Askey, W. A. "B" G-13-136965 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 642 | 1.89M | Jan 1993 – Apr 2026 |
| Casteberry G-6-105463 | Cook Exploration Co. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 639 | 57.1K | Jul 1993 – Jun 2009 |
| Starkey, A. I. "A" G-13-115763 | Devon Energy Production Co, L.P. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 637 | 225K | Jan 1993 – Jan 2015 |
| Hickey, F.S. et Al G-6-142105 | SM Energy Company only | Centennial, E. (Cotton Valley) | Panola | 1 | 634 | 132K | Jan 1993 – Nov 2006 |
| Parsons, I.M. "F" O-8-25920 | Sun-Key Oil Co., Inc. only | Parsons (Gray) | Callahan | 1 | 627 | 21.3K | Jan 1993 – May 2001 |
| Smith-Key Unit O-13-27648 | Pitcock, Inc. only | C-L-W (Mississippian) | Archer | 1 | 609 | 12 | Jan 1993 – Dec 1993 |
| Brushy Creek Gas Unit G-2-107269 | Key Energy Services, LLC only | Brushy Creek (Yegua 5050) | Lavaca | 1 | 608 | 127K | Jan 1993 – Dec 2000 |
| Hillert "A" O-9-17054 | Cazar Energy Inc only | Menard, W. (Harkey) | Menard | 1 | 603 | 0 | Jan 2010 – Sep 2012 |
| Pogo Walton C G-10-139861 | Bass Enterprises Production Co. only | Keystone (Yates) | Winkler | 1 | 596 | 37.4K | Jan 1993 – Jan 2000 |
| Markey #2 G-6-208481 | Sabine Energy Inc. only | Minden (Cotton Valley Cons.) | Rusk | 1 | 595 | 617K | Jan 2005 – Apr 2026 |
| Faulconer-Key G-6-146519 | Smith Resources, L.L.C. only | Ware (Cotton Valley) | Harrison | 1 | 592 | 322K | Aug 1993 – Feb 2014 |
| Keystone Mills Co. O-3-24431 | Exxon Mobil Corporation only | Conroe (Middle Wilcox Cons.) | Montgomery | 1 | 592 | 22.2K | Aug 2003 – Jun 2004 |
| Osborne G-14-61582 | Presidio Petroleum LLC only | Shreikey (Morrow) | Roberts | 1 | 575 | 961K | Jan 1993 – Apr 2026 |
| Mackey, L.L. O-6-16004 | Buffco Production Inc. only | Willow Springs (Travis Peak) | Gregg | 1 | 572 | 12K | Nov 2023 – Jun 2025 |
| McMillan, C. L. G-9-155339 | TXP, Incorporated only | R. E. G. (Harkey) | Schleicher | 1 | 561 | 1.12K | Aug 1995 – Apr 1997 |
| March-Dickey Gas Unit G-6-267361 | O'Ryan Oil and Gas only | Trawick (Pettit-TP Cons.) | Rusk | 1 | 545 | 247K | Sep 2011 – Apr 2026 |
| Key Ranch 34 O-11-70192 | Apache Corporation only | Rafter Cross (Mississippian) | Borden | 1 | 545 | 0 | Apr 2014 – May 2014 |
| Walton, J. B. G-10-142752 | Hilcorp Energy Company only | Keystone (Ellenburger) | Winkler | 1 | 542 | 3.22M | Jan 1993 – Apr 2026 |
| Bell-Berman "A" O-11-60844 | Neff, Mickey Oil Company Inc. only | Sharon Ridge (1700) | Mitchell | 1 | 539 | 17 | Mar 1993 – Sep 1994 |
| Lokey G-13-228285 | XTO Energy Inc. only | Newark, East (Barnett Shale) | Hood | 1 | 531 | 187K | Jan 2007 – Mar 2011 |
| West Turkey Track G-14-129138 | Arrington CJM, Inc. only | Arrington (Morrow) | Hutchinson | 1 | 530 | 270K | Jan 1993 – Feb 1996 |
| Coles, Arthur Ray Jr. G-2-176704 | Hankey Oil Company only | Marshall, East (Yegua 5523) | Goliad | 1 | 529 | 29.3K | Jan 2000 – May 2001 |
| Favors, C. C. "B" G-5-197849 | Spence, Ralph Oil Company, Inc. only | Pokey (Travis Peak Lower 1) | Limestone | 1 | 515 | 930K | Sep 2003 – Feb 2023 |
| Hawkeye Unit G-13-237628 | Diversified Production LLC only | Newark, East (Barnett Shale) | Hood | 1 | 513 | 461K | Mar 2008 – Apr 2020 |
| Fain-Parkey O-13-12549 | Taylor Properties only | Archer County Regular | Archer | 3 | 511 | 21 | Jan 1993 – May 2001 |
| Rosenbaum O-3-22972 | Key Operating & Equipment, Inc. only | Clay Creek | Washington | 1 | 510 | 154 | Mar 1996 – Jul 2000 |
| Stuart Estate "60" G-8-151152 | Cumming Company, Inc. The only | Iona Hickey (Conglomerate) | Palo Pinto | 1 | 503 | 126K | Sep 1994 – Jan 1996 |
| Lavender #2 O-10-31433 | Endeavor Energy Resources L.P. only | Keystone (Holt) | Winkler | 1 | 497 | 8 | Jan 1993 – Nov 1996 |
| Turkey Track Ranch G-14-122602 | Palo Duro Resources LLC only | W. T. Coble (Morrow Upper) | Hutchinson | 1 | 494 | 405K | Jan 1993 – Jun 2024 |
| Lackey G-14-59779 | Kodiak Oil & Gas, Inc. only | Hansford (Morrow, Lower) | Hansford | 1 | 491 | 171K | Jan 1993 – Jan 1999 |
| Key, Clifton O-13-21720 | Embassy Oil Company only | Key (Gunsight) | Archer | 2 | 491 | 35 | Jan 1993 – Nov 1997 |