| Ladoga 143-142 Unit O-10-56972 | Permian Resources Operating, LLC only | Hoefs T-K (Wolfcamp) | Reeves | 3 | 1.2M | 4.51M | Dec 2020 – Aug 2026 |
| Kate 143 Unit O-10-48210 | Strawn Petroleum Operating, LLC only | Garden City, S. (Wolfcamp) | Scurry | 2 | 794K | 2.52M | May 2016 – Aug 2026 |
| State Bubblin' Crude 0807B-143 O-10-51196 | Swordfish Energy Operating, LLC only | Phantom (Wolfcamp) | Pecos | 2 | 682K | 969K | Oct 2018 – Aug 2026 |
| State Big Tex South 781615-143 O-10-52938 | Swordfish Energy Operating, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 477K | 698K | Aug 2019 – Aug 2026 |
| Lupin Dora 3143 I O-10-60145 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 372K | 443K | Sep 2023 – Aug 2026 |
| Lupin Dora 3143 B O-10-60128 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 353K | 344K | Sep 2023 – Aug 2026 |
| Lupin Dora 3143 G O-10-60143 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 324K | 464K | Oct 2023 – Aug 2026 |
| Lupin Dora 3143 E O-10-60130 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 321K | 550K | Sep 2023 – Aug 2026 |
| Lupin Dora 3143 H O-10-60144 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 313K | 474K | Sep 2023 – Aug 2026 |
| Bengal D 169-143 LB O-9-22366 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 312K | 893K | Nov 2023 – Aug 2026 |
| Adams D 3143DP O-10-56032 | OXY USA Inc. only | Spraberry (Trend Area) | Howard | 1 | 308K | 999K | May 2021 – Aug 2026 |
| State B&B Sisters 0833B-143 O-10-51062 | Swordfish Energy Operating, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 307K | 414K | Oct 2018 – Aug 2026 |
| Lupin Dora 3143 C O-10-60129 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 307K | 494K | Sep 2023 – Aug 2026 |
| Bengal E 169-143 UB O-9-22367 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 305K | 936K | Nov 2023 – Aug 2026 |
| Lupin Dora 3143 F O-10-60166 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 302K | 441K | Sep 2023 – Aug 2026 |
| Section 143 Unit O-11-64076 | Schlachter Operating Corporation only | Sharon Ridge (1700) | Scurry | 79 | 287K | 2.59K | by Jan 1993 – Aug 2026 |
| Lupin Dora 3143 A O-10-60146 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 1 | 274K | 410K | Sep 2023 – Aug 2026 |
| Bengal C 169-143 UB O-9-22374 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 255K | 924K | Nov 2023 – Aug 2026 |
| Bengal B 169-143 LB O-9-22373 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 252K | 959K | Nov 2023 – Aug 2026 |
| Bengal a 169-143 UB O-9-22310 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 244K | 823K | Nov 2023 – Aug 2026 |
| Fasken ZB 4143 O-10-61062 | Fasken Oil and Ranch, Ltd. only | Emma (Barnett Shale) | Andrews | 1 | 238K | 563K | Jan 2024 – Aug 2026 |
| Thurman 143-13 O-10-46415 | Perun Energy LLC only | Hoefs T-K (Wolfcamp) | Reeves | 1 | 213K | 376K | Jun 2015 – May 2021 |
| State B&B Sisters 0833A-143 O-10-48906 | Swordfish Energy Operating, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 172K | 384K | Apr 2017 – Jul 2026 |
| Burrell State 34-143 Unit O-10-44806 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Ward | 1 | 154K | 183K | Dec 2013 – Oct 2016 |
| South Guava 3143DP O-10-63455 | OXY USA Inc. only | Spraberry (Trend Area) | Howard | 1 | 148K | 303K | Mar 2025 – Aug 2026 |
| Burrell 34-143 O-10-48562 | Anadarko E&P Onshore LLC only | Sandbar (Bone Spring) | Ward | 1 | 124K | 153K | Nov 2016 – Aug 2026 |
| Fasken ZA 4143 O-10-61132 | Fasken Oil and Ranch, Ltd. only | Emma (Barnett Shale) | Andrews | 1 | 109K | 218K | Jan 2024 – Nov 2024 |
| Philipp 143 O-14-8036 | Courson Oil & Gas, Inc. only | Pan Petro (Cleveland) | Ochiltree | 2 | 106K | 848K | Aug 2009 – Aug 2026 |
| Fasken ZA 4143 G-10-298974 | Fasken Oil and Ranch, Ltd. only | Emma (Barnett Shale) | Andrews | 1 | 91.8K | 328K | Nov 2024 – Aug 2026 |
| Champion Int'l. A-143 O-6-14041 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 88.5K | 854K | Sep 2000 – Jun 2026 |
| Phillip 143 O-14-7944 | Holmes Exploration, LLC only | Ellis Ranch (Cleveland) | Ochiltree | 1 | 78.6K | 356K | Jan 2009 – Apr 2011 |
| Sec 143-1 O-11-65636 | Sojourner Drilling Corporation only | Michelle Kay (Cisco) | Dickens | 2 | 78.1K | 14.5K | by Jan 1993 – Jul 2026 |
| Lindsey-Bledsoe A-143 G-3-261183 | Samson Exploration, LLC only | Hartburg, S.E. (Yegua EY-2) | Orange | 1 | 53.2K | 670K | Jul 2010 – Aug 2012 |
| Flat Top (143-B) O-8-22794 | Quail Well Service, Inc. only | Flat Top 143 (Swastika) | Stonewall | 1 | 35.6K | 56 | by Jan 1993 – Nov 2012 |
| University "143" O-10-24645 | Highmark Energy Operating, LLC only | Shafter Lake (San Andres) | Andrews | 1 | 33K | 13.6K | by Jan 1993 – Feb 2023 |
| Champion Int'l Unit A-143 G-6-157886 | Swift Energy Company only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 26.1K | 152K | Jan 1996 – Feb 1999 |
| University -143- O-10-11775 | Henry Petroleum Corp. only | Shafter Lake (Clear Fork) | Andrews | 4 | 14.1K | 15.8K | by Jan 1993 – Jan 1995 |
| Parnell "143" G-14-187308 | Mewbourne Oil Company only | Parsell (Morrow, Lower) | Ochiltree | 1 | 14K | 971K | Jan 2002 – Aug 2026 |
| Champion Int'l Unit A-143 O-6-13909 | Prize Exploration & Prod, LLC only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 10.5K | 68.1K | Mar 1999 – Jun 2018 |
| Kirby-Holy Cross G-3-213394 | Basa Resources, Inc. only | Wadsworth, S. (Discorbis 14390) | Matagorda | 1 | 8.59K | 1.01M | Jun 2005 – Oct 2010 |
| Hardy Gas Unit G-3-212831 | Devon Energy Production Co, L.P. only | Wadsworth, S. (Discorbis 14390) | Matagorda | 1 | 7.78K | 4.81M | May 2005 – Mar 2012 |
| Texas State Tract 143 G-4-45176 | Petro-Hunt, L.L.C. only | Nine Mile Point (Consol. Fld.) | Aransas | 1 | 7.31K | 1.98M | by Jan 1993 – Sep 2012 |
| BP America A-3 G-3-206247 | Petro-Smith Operating LLC only | Bankston (14300 Sand) | Hardin | 1 | 7.29K | 42.2K | Nov 2004 – Nov 2008 |
| Snyder Mineral Trust 143 O-8-20715 | L.C.S. Production Company only | SMT (Cross Cut) | Callahan | 2 | 5.91K | 5.16K | by Jan 1993 – Dec 2000 |
| Snyder Mineral Trust 143 O-8-20673 | L.C.S. Production Company only | SMT (Palo Pinto) | Callahan | 1 | 4.35K | 254 | by Jan 1993 – Dec 2000 |
| Snyder Mineral Trust 143 O-8-20859 | L.C.S. Production Company only | Callahan County Regular | Callahan | 2 | 2.26K | 194 | by Jan 1993 – Dec 2000 |
| Sawyer 143 G-9-147582 | Robert C. Brower, LLC only | Sawyer (Canyon) | Sutton | 1 | 1.75K | 574K | Nov 1993 – Aug 2026 |
| Sid "143" G-14-222867 | Mewbourne Oil Company only | Roadside (Atoka) | Ochiltree | 1 | 1.65K | 207K | Oct 2006 – Aug 2026 |
| Emil J. Ottis Heirs Gas Unit G-3-242064 | Devon Energy Production Co, L.P. only | Wadsworth, S. (Discorbis 14390) | Matagorda | 1 | 1.53K | 118K | Apr 2008 – Sep 2008 |
| Conroe Townsite Oil Unit #143 O-3-10287 | Comet Oil & Gas, Inc. only | Conroe Townsite (CKFLD.2ND,UP) | Montgomery | 1 | 1.5K | 10 | Feb 1993 – Feb 1999 |