| Sacroc Unit O-11-3137 | Kinder Morgan Production Co LLC only | Kelly-Snyder | Scurry | 2,719 | 272M | 1.05B | Jan 1993 – Jul 2026 |
| Kelley Wilson Unit O-1-15919 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 15 | 3.79M | 8.38M | Apr 2012 – Jul 2026 |
| Kelly Unit O-1-17420 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 7 | 2.6M | 1.52M | Mar 2013 – Jul 2026 |
| Keller, P. M. O-14-1464 | Mountainside Energy Operating, L only | Panhandle Wheeler County Field | Wheeler | 28 | 2.02M | 136K | Jan 1993 – Jul 2026 |
| Kellen 36-25-H O-10-52327 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 3 | 1.88M | 2.28M | Dec 2018 – Jul 2026 |
| Carpenter-Kellner Unit O-2-10296 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-2) | Karnes | 6 | 1.6M | 2.26M | Oct 2012 – Jul 2026 |
| Kellen 36-25-A O-10-54587 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 3 | 1.39M | 1.84M | Dec 2019 – Jul 2026 |
| Keller O-1-16954 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | La Salle | 4 | 1.28M | 999K | May 2013 – Jul 2026 |
| Keller, P. M. O-14-1443 | Arcadia Energy Resources, LLC only | Panhandle Wheeler County Field | Wheeler | 47 | 976K | 3.09M | Jan 1993 – Jul 2026 |
| Kelley State 22 O-10-47877 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 2 | 772K | 643K | Jan 2016 – Jul 2026 |
| Kelley State Kamo B 22-23 O-10-52255 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 612K | 793K | Nov 2018 – Jul 2026 |
| Keller "C" O-11-63561 | Finley Resources, Inc. only | Brahaney, W. (Dev) | Yoakum | 3 | 606K | 59.4K | Jan 1993 – Jul 2026 |
| Kelley State Kamo a 22-23 O-10-51871 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 504K | 781K | Nov 2018 – Jul 2026 |
| Kelly-Iverson 5H O-10-60430 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 447K | 584K | Jul 2023 – Jul 2026 |
| Hosey-Driskell Unit O-6-13177 | Wilson Energy Resources LLC only | Hosey-Driskell (Rodessa) | Cass | 28 | 442K | 119K | Jul 1993 – Jul 2026 |
| Keller O-1-15958 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 3 | 402K | 127K | Apr 2012 – Jul 2026 |
| Kelly, Dan O-7-8144 | Linder, John Operating Co., LLC only | East Texas | Rusk | 16 | 384K | 56.2K | Jan 1993 – Jul 2026 |
| Kellner Jonas-Mutz-902 Ltd SA2 O-1-20498 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 383K | 641K | Sep 2021 – Jul 2026 |
| Kellner Jonas-Mutz Unit SA8 O-2-12614 | Verdun Oil & Gas LLC only | Eagleville (Eagle Ford-2) | Live Oak | 1 | 381K | 789K | Aug 2022 – Jul 2026 |
| Kellner Jonas-Mutz Unit SA7 O-2-12679 | Verdun Oil & Gas LLC only | Eagleville (Eagle Ford-2) | Live Oak | 1 | 380K | 865K | Aug 2022 – Jul 2026 |
| Kelley State Kamo 22-23 E O-10-57508 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 363K | 418K | Jun 2020 – Jul 2026 |
| Kelley State Kamo 22-23 D O-10-57403 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 363K | 425K | Jun 2020 – Jul 2026 |
| L Kellner Unit O-1-17039 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-1) | Atascosa | 4 | 358K | 572K | May 2013 – Jul 2026 |
| Kelley State Kamo 22-23 C O-10-57414 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 356K | 520K | Jun 2020 – Jul 2026 |
| Haskell-Sojourner Unit O-8-11326 | S.B. Street Operating, Inc. only | Sojourner (Bursen) | Haskell | 34 | 346K | 48 | Jan 1993 – Jul 2026 |
| Kellner Jonas-Mutz Unit SA3 O-1-20502 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 334K | 574K | Sep 2021 – Jul 2026 |
| C.pfeil-C.kellner-C.hummel Psa O-1-19583 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 324K | 511K | Feb 2019 – Jul 2026 |
| Kellner Jonas-Mutz Unit SA4 O-1-20503 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 314K | 629K | Oct 2021 – Jul 2026 |
| Kellner Jonas-Mutz Unit SA5 O-1-20523 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 303K | 549K | Oct 2021 – Jul 2026 |
| Skelly-Stoker O-11-5138 | Aviator Energy, LLC only | Rocker -A- | Garza | 17 | 279K | 25.8K | Jan 1993 – Jul 2026 |
| Kelly-Iverson 5C O-10-60246 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 275K | 463K | Jul 2023 – Jul 2026 |
| Kellner-Jonas Unit O-1-15566 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 261K | 333K | Jun 2011 – Jul 2026 |
| Kelly-Iverson 5I O-10-60367 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 245K | 370K | Aug 2023 – Jul 2026 |
| Kelly-Iverson 5B O-10-60424 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 235K | 473K | Sep 2023 – Jul 2026 |
| Kelly-Roberts O-10-32327 | Citation Oil & Gas Corp. only | Howard-Glasscock (Wolfcamp 7400) | Howard | 3 | 233K | 1.31M | Jan 1993 – Jul 2026 |
| Kelly-Iverson 5G O-10-60229 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 223K | 525K | Jul 2023 – Jul 2026 |
| Keller, E. O-11-17786 | Hilcorp Energy Company only | Wasson (Wichita Albany) | Yoakum | 3 | 213K | 100K | Jan 1993 – Jul 2026 |
| Kelly-Iverson 5A O-10-60244 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 210K | 312K | Jul 2023 – Jul 2026 |
| Kelly-Iverson 5D O-10-60435 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 200K | 382K | Aug 2023 – Jul 2026 |
| Kelli O-9-18244 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 5 | 194K | 812K | May 2013 – Jul 2026 |
| Kellner Unit O-1-18637 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 185K | 198K | Aug 2015 – Jul 2026 |
| Kelly O-9-16242 | Summit Petroleum LLC only | Spraberry (Trend Area) | Upton | 5 | 182K | 781K | Mar 2007 – Jul 2026 |
| Kelly-Iverson 5E O-10-60387 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 167K | 286K | Aug 2023 – Jul 2026 |
| UP for Grabs O-11-66747 | Raw Oil & Gas, Inc. only | Kelly-Snyder, SE. (Canyon, Mi.) | Scurry | 1 | 165K | 125K | Jan 1993 – Jul 2026 |
| Cunningham, R. W. -A- O-13-4252 | Davis, Kelly J. only | Montague County Regular | Montague | 17 | 164K | 21 | Jan 1993 – Jul 2026 |
| Kelly Snyder 38 O-11-70261 | Sharp Image Energy, Inc. only | Tri-Rue (Reef) | Scurry | 1 | 155K | 114K | Jul 2014 – Jul 2026 |
| Kelley D O-14-9324 | Questa Energy Corporation only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 154K | 590K | Jun 2013 – Jul 2026 |
| Kellner-McMahon Unit O-1-15562 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 153K | 227K | Aug 2011 – Jul 2026 |
| Kelley A O-14-9040 | Questa Energy Corporation only | Lipscomb, S.E. (Cleveland) | Hemphill | 5 | 150K | 401K | May 2012 – Jul 2026 |
| Dspain -C- O-14-1428 | Kellerville Operating, LLC only | Panhandle Wheeler County Field | Wheeler | 8 | 149K | 216K | Jan 1993 – Jul 2026 |