| Citizens National Bank O-11-6138 | OXY USA Inc. only | Slaughter | — | 10 | 972K | 244K | Jan 1993 – Sep 2016 |
| International Unit O-10-48671 | Apache Corporation only | Spraberry (Trend Area) | Howard | 3 | 637K | 1.11M | May 2017 – Jul 2026 |
| First National Waterflood Unit O-13-12417 | R2Q Operating LLC only | K-M-A | Wichita | 36 | 463K | 235K | Jan 1993 – Jul 2026 |
| Moody National Bank O-6-12673 | Atlantis Oil Company, Inc. only | Good Springs, W. (Woodbine) | Rusk | 3 | 444K | 16.4K | Jan 1993 – Jul 2026 |
| National Forest O-6-11686 | HD Operating Co, LLC only | Laura la Velle, S. (1600) | Houston | 21 | 384K | 27 | Jan 1993 – Jul 2026 |
| West Texas National Bank O-11-5635 | Crossroads Operating, LLC only | Sharon Ridge (Clear Fork) | Scurry | 9 | 331K | 39.1K | Jan 1993 – Jul 2026 |
| Carlinville National Bank O-10-15281 | Formentera Operations LLC only | Yarbrough & Allen (Devonian) | Ector | 5 | 283K | 396K | Jan 1993 – Jul 2026 |
| First National Bank of Snyder O-11-67079 | Crossroads Operating, LLC only | Sharon Ridge (Clear Fork) | Scurry | 12 | 259K | 12.4K | Apr 1993 – Jul 2026 |
| First National Trust O-14-4807 | Courson Oil & Gas, Inc. only | Pshigoda (Douglas) | Ochiltree | 7 | 254K | 34.8K | Jan 1993 – Jul 2026 |
| Moody National Bank O-3-21298 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 1 | 239K | 144K | Jan 1993 – Jan 2009 |
| First National Bank O-11-60457 | Unitex Oil & Gas, L.L.C. only | Sharon Ridge (Clear Fork) | Scurry | 8 | 198K | 21 | Jan 1993 – Jul 2026 |
| First National Trust O-14-6986 | Courson Oil & Gas, Inc. only | Wolfcreek (Douglas) | Ochiltree | 1 | 186K | 90.9K | May 1994 – Jul 2026 |
| American National Life Ins. Co O-10-31768 | Crescent Energy Operating, LLC only | Estes Block 34 (Wolfcamp, Gas) | Ward | 8 | 178K | 2.97M | Jan 1993 – Jul 2026 |
| First National Shallow A O-13-28362 | R2Q Operating LLC only | Wichita County Regular | Wichita | 35 | 175K | 21 | Jan 1993 – Jul 2026 |
| Blackstone O-3-25119 | Muroz International Group Inc only | Cleveland (Cockfield 5600) | Liberty | 1 | 156K | 0 | Sep 2007 – Jul 2026 |
| Champion International D 1 O-3-24212 | Parten Operating Inc. only | Ft. Trinidad, SW. (Buda) | Houston | 1 | 127K | 177K | Jun 2002 – Oct 2016 |
| First National Co. -B- O-13-16135 | Ross, Dwight M. Drlg. Co., Inc. only | Bowers (Granite Wash) | — | 3 | 125K | 35 | Jan 1993 – Jul 2026 |
| Carlinville National Bank O-10-8075 | Apache Corporation only | Yarbrough & Allen (Ellenburger) | Ector | 9 | 106K | 102K | Jan 1993 – Jul 2010 |
| Holliman O-13-31667 | Ridge Petroleum Inc. only | National (Ellenburger) | Wilbarger | 2 | 105K | 0 | Jul 2010 – Jul 2026 |
| Stuart Estate "61" O-8-27407 | International Western Oil Corp only | Stuart (Marble Falls 3700) | Palo Pinto | 4 | 104K | 527K | Dec 1994 – Jul 2026 |
| Royall National Bank -B- O-6-4240 | Pride Energy Company only | Purt | — | 5 | 103K | 70 | Jan 1993 – Jul 2026 |
| First National Company O-13-4954 | Newport Operating, LLC only | Wichita County Regular | Wichita | 36 | 99.7K | 21 | Jan 1993 – Jul 2026 |
| Champion International O-3-19136 | Delta Exploration Company, Inc. only | Sheraliz (Wilcox 2) | Newton | 1 | 96.2K | 110K | Jan 1993 – May 2008 |
| Stuart "60" O-8-27847 | International Western Oil Corp only | Strawn, NW. (Conglomerate) | Palo Pinto | 2 | 82.6K | 22.8K | May 1996 – Jul 2026 |
| Blalock, Alvin O-6-3455 | Muroz International Group Inc only | Trix-Liz, East (Woodbine -B-) | — | 2 | 80.5K | 410 | Jan 1993 – Jul 2026 |
| Marshall, Fannie O-7-7413 | International Western Oil Corp only | East Texas | — | 9 | 80.4K | 52.8K | Jan 1993 – Jul 2026 |
| Cleveland Crest O-3-25824 | Muroz International Group Inc only | Cleveland (Wilcox 9000) | Liberty | 1 | 80.3K | 0 | Jul 2010 – Jul 2026 |
| First National Bank O-3-23014 | Sue-Ann Operating, L.C. only | Midfields (Betts, L.) | Matagorda | 2 | 74.5K | 98.5K | Jul 1996 – Jul 2004 |
| Champion International Corp. "F" O-6-14050 | Parten Operating Inc. only | Kittrell (Dexter) | Houston | 1 | 72K | 93.6K | Nov 2000 – Jul 2026 |
| Champion International Corp 320 O-3-20280 | Old Pine Energy Corporation only | Goodrich, E. (Sparta) | Polk | 2 | 65.7K | 21K | Jan 1993 – Jul 2026 |
| Champion International Unit O-6-13212 | Hunt Petroleum Corporation only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 65.1K | 435K | Jun 1993 – Mar 2008 |
| First National (Shallow) O-13-17833 | Newport Operating, LLC only | Wichita County Regular | Wichita | 28 | 59.9K | 21 | Jan 1993 – Jul 2026 |
| National Forest (19739) "A" O-6-13135 | HD Operating Co, LLC only | Laura la Velle, S. (1600) | Houston | 2 | 59.6K | 27 | Jan 1993 – Jul 2026 |
| Begeman A O-13-31971 | Ridge Petroleum Inc. only | National (Caddo) | Wilbarger | 3 | 59.2K | 0 | Dec 2010 – Dec 2021 |
| International Shoe O-3-24442 | Martineau Petroleum, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 55.8K | 424K | Sep 2003 – Jun 2008 |
| Teichleman, B. O-8-19029 | Rister Oil&gas International LLC only | Sagerton, South (King Sand) | Haskell | 2 | 53.6K | 0 | Jan 1993 – Jul 2026 |
| First National Bank-Jacksboro C O-13-29351 | Moriah Resources, Inc. only | Pursley (Caddo Lime) | Jack | 1 | 52.6K | 79.5K | Apr 1997 – May 2003 |
| Champion International Corp. "E" O-6-13633 | Parten Operating Inc. only | Kittrell (Dexter) | Houston | 1 | 51.6K | 714K | Mar 1997 – Jul 2026 |
| First National Bank "C" O-13-16449 | Ross, Dwight M. Drlg. Co., Inc. only | Bowers (Granite Wash) | Montague | 2 | 50.8K | 35 | Jan 1993 – Jul 2026 |
| Dyco O-3-25670 | Muroz International Group Inc only | Cleveland (Yegua 5800) | Liberty | 1 | 50.1K | 0 | Jan 2011 – Jul 2026 |
| Begeman O-13-31160 | Ridge Petroleum Inc. only | National (Caddo) | Wilbarger | 4 | 49.9K | 2.04K | Nov 2008 – Jul 2026 |
| First National Shallow O-13-5594 | R2Q Operating LLC only | Wichita County Regular | — | 1 | 49.2K | 21 | Jan 1993 – Jul 2026 |
| Doege, Alfred O-1-850 | Muroz International Group Inc only | La Vernia | Guadalupe | 29 | 47.1K | 59 | Jan 1993 – Jul 2026 |
| Flusche Kelly Estate O-13-12307 | Quatro Oil and Gas, Inc. only | National (Ellenburger) | — | 4 | 44K | 22 | Jan 1993 – Jul 2026 |
| Bonnett, Norman N. O-9-6883 | Texas International Resource LLC only | Lena Clayton (Serratt) | Runnels | 6 | 43.4K | 1.39K | Jan 1993 – Jul 2026 |
| First National O-13-6233 | Newport Operating, LLC only | K-M-A | Wichita | 19 | 41.2K | 16.1K | Jan 1993 – Jul 2026 |
| Sammy Moore O-13-31917 | Quatro Oil and Gas, Inc. only | National (Ellenburger) | Wilbarger | 1 | 39.4K | 0 | Jul 2010 – Jul 2026 |
| Frost National Bank Unit O-1-13320 | Sage Energy Company only | Pearsall (Austin Chalk) | Zavala | 1 | 38.9K | 149K | Jan 1993 – Jul 2002 |
| Kelly Estate O-13-31571 | Quatro Oil and Gas, Inc. only | National (Ellenburger) | Wilbarger | 5 | 38K | 0 | Dec 2009 – Jul 2026 |
| Lyall-Seaboard O-14-1582 | PG-M International Operating,llc only | Panhandle Hutchinson County Fld. | Hutchinson | 6 | 37.2K | 48.4K | Jan 1993 – Apr 2015 |