| Palo-Tommye Boothe S O-9-8353 | H&H Operating only | Barnhart, NE. (Grayburg) | Reagan | 2 | 13.1K | 137 | by Jan 1993 – Nov 2018 |
| Ashby O-14-5826 | Dalf Energy LLC only | Panhandle Gray County Field | Gray | 8 | 13.1K | 911K | by Jan 1993 – Jun 2018 |
| Yturria, H. G-4-206465 | Apollo Petro Fuels LLC only | Raymondville (Consolidated) | Willacy | 1 | 13.1K | 2.41M | Sep 2004 – May 2023 |
| National O-14-222 | Borger Resources 4 LLC only | Panhandle Gray County Field | Gray | 8 | 13.1K | 9 | by Jan 1993 – Dec 2016 |
| Edwards, W. P. G-10-167030 | Citation Oil & Gas Corp. only | Waddell (Grayburg) | Crane | 1 | 13.1K | 574K | Aug 1997 – Dec 2015 |
| Sealy Smith O-8-22656 | Encon Services, Inc. only | A.R.S. (Gray, Upper) | Coleman | 1 | 13K | 158K | by Jan 1993 – Oct 2007 |
| University Block 46 O-9-11783 | Mariah Energy Corp. only | Block 46, East (Grayburg) | Crockett | 11 | 13K | 3.72K | by Jan 1993 – Sep 1998 |
| Wright, C. (Gryphon) O-14-410 | Legacy Reserves Operating LP only | Panhandle Gray County Field | Gray | 3 | 13K | 400 | by Jan 1993 – Mar 2007 |
| McKay -A- O-14-5573 | Helton, Pat A. & Alberta only | Panhandle Gray County Field | Gray | 2 | 13K | 118K | by Jan 1993 – Aug 2026 |
| Worley-Combs O-14-315 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 16 | 12.9K | 921 | by Jan 1993 – Jun 2012 |
| Simmonds & Perry G-4-264339 | EOG Resources, Inc. only | Brayton, N. (Vicksburg 10,000) | Nueces | 1 | 12.9K | 132K | Dec 2011 – Oct 2013 |
| Gray O-8-17741 | Encon Services, Inc. only | Longworth, W. (Canyon) | Fisher | 2 | 12.9K | 19.7K | by Jan 1993 – Sep 2000 |
| Tanqueray Unit G-3-193240 | EOG Resources, Inc. only | Mossy Grove (Glen Rose) | Walker | 1 | 12.9K | 3.76M | Dec 2002 – Aug 2026 |
| Dickey O-14-2799 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 1 | 12.9K | 33.7K | by Jan 1993 – Aug 2026 |
| Woods, Ray O-1-4048 | Shoreham Oil & Gas Company, Inc. only | Cherokee (Navarro) | Milam | 11 | 12.8K | 84 | by Jan 1993 – Aug 2005 |
| Scherer, Mrs. Lula Ray O-3-20547 | Harrison, Dan J Iii&bruce F Est only | Mayes, West (F-1) | Chambers | 2 | 12.8K | 76.8K | by Jan 1993 – Feb 2017 |
| Fitzsimmons Mews G-4-221458 | Noble Energy Inc only | Parr Sunray (Yegua Consolidated) | Duval | 1 | 12.8K | 545K | Jun 2006 – Jul 2011 |
| Bender O-14-226 | Trejim Operators, LLC only | Panhandle Gray County Field | Gray | 8 | 12.7K | 83.2K | by Jan 1993 – Aug 2026 |
| Thomasma, Ray J. "B" G-4-223916 | Hilcorp Energy Company only | Zwebb (10350) | Webb | 1 | 12.7K | 2.06M | May 2004 – Aug 2026 |
| Parr Kibbe Molina G-4-208805 | Welderxp Ltd. only | Parr Sunray (Yegua Consolidated) | Duval | 1 | 12.7K | 711K | Mar 2005 – Oct 2020 |
| University Lands O-9-13237 | Rocanville Corporation only | Weger, SW. (Grayburg-San Andres) | Crockett | 1 | 12.7K | 47.1K | Nov 1994 – Oct 2004 |
| Morse -B- O-14-320 | Wischkaemper, Kenneth only | Panhandle Gray County Field | Gray | 1 | 12.6K | 244 | by Jan 1993 – Aug 2026 |
| Npu ( Ray-8) G-2-148558 | Pennzenergy Exp. & Prod., L.L.C. only | Tulsita-Wilcox ( 7,700) | Bee | 1 | 12.5K | 925K | Jan 1994 – Nov 1997 |
| Slovacek, Rayfield O-3-13639 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Burleson | 1 | 12.5K | 33.5K | by Jan 1993 – Sep 1994 |
| Npu (Ray-8) G-2-173248 | Legend Natural Gas II, LP only | Tulsita-Wilcox ( Massive) | Bee | 1 | 12.5K | 849K | Apr 1999 – May 2003 |
| Ray, George A. G-2-210454 | Paleo Oil Company LLC only | Tulsita-Wilcox ( Slick) | Bee | 1 | 12.5K | 503K | Jun 2004 – Jul 2005 |
| Mitchell, Theo G-3-44645 | Western Energy Group, LLC only | Raywood (Yegua 10,700) | Liberty | 1 | 12.5K | 1.25M | by Jan 1993 – Apr 2019 |
| Palo-Boothe G O-9-8854 | H&H Operating only | Barnhart, NE. (Grayburg) | Reagan | 2 | 12.4K | 136 | by Jan 1993 – Nov 2018 |
| Thomasma, Ray J. O-4-8646 | Hilcorp Energy Company only | Davis, South (1350) | Zapata | 1 | 12.4K | 2.68K | by Jan 1993 – Jul 2016 |
| Gray, Sanford O-10-19680 | Permian Resources, Inc. only | Pecos Valley (Montoya) | Pecos | 1 | 12.4K | 21 | by Jan 1993 – Nov 2000 |
| Brown "A" O-14-7031 | Large Operating LLC only | Panhandle Gray County Field | Gray | 7 | 12.4K | 2.91K | Sep 1994 – Jul 2026 |
| McMurray GU 'A' G-13-275183 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 12.4K | 476K | Nov 2013 – Sep 2017 |
| Bishop, A. J. O-9-8434 | Rayco Operating, Inc. only | Spike, North (Palo Pinto) | Runnels | 1 | 12.4K | 21 | by Jan 1993 – Feb 2009 |
| Bull, B-Rose O-14-5216 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 1 | 12.3K | 152K | by Jan 1993 – Aug 2026 |
| Edwards Ranch -32- O-10-13516 | Baker Operating, Inc. only | Double -H- (Grayburg) | Ector | 1 | 12.3K | 46 | by Jan 1993 – Aug 2026 |
| Dorris, T. P. O-13-6138 | Raymond's Operating, Inc. only | K-M-A | Wichita | 4 | 12.3K | 141 | by Jan 1993 – Sep 2004 |
| Sunray Bowers O-14-3391 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 1 | 12.3K | 375K | Jun 1995 – Aug 2026 |
| Shaw O-14-5812 | Walls, G. M. & Frances, Inc. only | Panhandle Gray County Field | Gray | 4 | 12.3K | 92.6K | by Jan 1993 – Nov 2005 |
| Waggoner -Eee- O-13-15340 | Pace and Ray Oil Co. only | Wichita County Regular | Wichita | 5 | 12.2K | 20 | by Jan 1993 – Dec 2013 |
| English, W.L. "A" O-8-15892 | Ray - a Operating Inc. only | Shackelford County Regular | Shackelford | 11 | 12.2K | 21 | by Jan 1993 – Feb 2019 |
| Dodge, Granville M., Est. O-10-52980 | Grayrock Energy II, LLC only | Iatan (San Andres) | Howard | 3 | 12.1K | 0 | Jul 2019 – Aug 2026 |
| Traylor, Maude B. O-2-1118 | Prize Operating Company only | Olivia (8300) | Calhoun | 4 | 12.1K | 78.7K | by Jan 1993 – May 1997 |
| Univ. "29-K" O-9-11916 | Vinson Exploration only | Bachelor Hill (Grayburg) | Crockett | 2 | 12.1K | 56.7K | by Jan 1993 – May 2024 |
| Trayler O-8-18389 | G & F Oil, Inc. only | Jones County Regular | Jones | 2 | 12.1K | 311 | by Jan 1993 – Jul 2026 |
| Wiser Unit O-13-23455 | Grayson Petroleum Company only | Two Eds (Hester Sand) | Grayson | 1 | 12.1K | 21 | by Jan 1993 – Mar 2000 |
| University -P- O-10-9972 | Sunray Energy, Inc. only | Embar (5600) | Andrews | 3 | 12.1K | 206K | by Jan 1993 – Jul 2008 |
| Haynes, Ethel B. O-13-2041 | Grayson Petroleum Company only | Cooke County Regular | Cooke | 2 | 12.1K | 21 | by Jan 1993 – Dec 2021 |
| Johnson -#179- O-14-3770 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 3 | 12.1K | 55.5K | by Jan 1993 – Dec 2018 |
| Thess G-3-199205 | Elliott Oil & Gas Operating Co. only | Chocolate Bayou,n.(andrau Stray) | Brazoria | 1 | 12K | 770K | Dec 2003 – Apr 2010 |
| Denman, Dan J. O-1-2949 | Delray Oil, Inc. only | Darst Creek (Buda) | Guadalupe | 4 | 12K | 104 | by Jan 1993 – Aug 2026 |