| Pittsburg Unit O-6-3286 | HD Operating Co, LLC only | Pittsburg | Camp | 73 | 3.02M | 436K | by Jan 1993 – Mar 2026 |
| Edwards, C. W., et Al O-10-17577 | Pitts Energy Co. only | Janelle, SE. (Tubb) | Ward | 21 | 830K | 6.39M | by Jan 1993 – Aug 2026 |
| Estes, W. A. O-10-5321 | Pitts Energy Co. only | Sand Hills, West | Crane | 46 | 719K | 1.08M | by Jan 1993 – Aug 2026 |
| Edwards, Jno. Etal -B- O-10-32210 | Pitts Energy Co. only | Janelle, SE. (Tubb) | Ward | 7 | 696K | 4.59M | by Jan 1993 – Aug 2026 |
| Weatherby -A- O-9-4921 | Pitts Energy Co. only | Spraberry (Trend Area) | Reagan | 21 | 659K | 2.47M | by Jan 1993 – Jun 2026 |
| Edwards, Janelle, Etal -B- O-10-17127 | Pitts Energy Co. only | Crawar (Devonian, North) | Crane | 9 | 518K | 4.02M | by Jan 1993 – Aug 2026 |
| Crawar Field Unit O-10-24345 | Pitts Energy Co. only | Crawar (Tubb) | Ward | 15 | 484K | 3.18M | by Jan 1993 – Aug 2026 |
| Stewart, Curtis O-6-11525 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 5 | 453K | 21 | by Jan 1993 – Mar 2026 |
| Crawar Field Unit O-10-983 | Pitts Energy Co. only | Crawar (Glorieta) | Ward | 17 | 446K | 5.53M | by Jan 1993 – Aug 2026 |
| Weatherby -B- O-9-6286 | Pitts Energy Co. only | Spraberry (Trend Area) | Reagan | 11 | 384K | 1.1M | by Jan 1993 – Mar 2026 |
| McGinty O-11-66501 | Pitts Energy Co. only | Block D (Devonian) | Yoakum | 2 | 347K | 21 | by Jan 1993 – Aug 2026 |
| Edwards, C. W., et Al O-10-35453 | Pitts Energy Co. only | Janelle, SE. (Glorieta) | Ward | 7 | 325K | 2.07M | Jul 1997 – Aug 2026 |
| Riddle, Mary Belle, Oil Unit O-6-4908 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 4 | 317K | 21 | by Jan 1993 – Jul 2026 |
| Edwards, J. H., et al -D- O-10-18073 | Pitts Energy Co. only | Crawar (Devonian, North) | Crane | 5 | 292K | 2.31M | by Jan 1993 – Aug 2026 |
| Edwards, F. H., et Al O-10-36347 | Pitts Energy Co. only | Crawar, N. (Tubb) | Crane | 4 | 286K | 254K | Jul 2000 – Aug 2026 |
| Newsome Unit O-6-14931 | Linder, John Operating Co., LLC only | Newsome (Pittsburg 8200) | Camp | 13 | 285K | 0 | Jan 2010 – Aug 2026 |
| Bryant -20- O-10-25794 | Pitts Energy Co. only | Crawar (Devonian, North) | Crane | 4 | 280K | 777K | by Jan 1993 – Aug 2026 |
| Pitts O-11-68153 | Barrett Brothers Oil & Gas, Inc. only | Tucker-West Point (Fusselman) | Lynn | 1 | 262K | 0 | Jan 2000 – May 2009 |
| Stewart, Curtis "A" O-6-13568 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 3 | 189K | 0 | Sep 1996 – Jul 2023 |
| Pitts O-14-903 | D10 Energy LLC only | Panhandle Hutchinson County Fld. | Hutchinson | 102 | 183K | 629K | by Jan 1993 – Aug 2026 |
| Champion, James M., et Al O-6-4189 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 6 | 182K | 21 | by Jan 1993 – Jul 2026 |
| Garrett, C. C. O-6-11208 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 4 | 181K | 21 | by Jan 1993 – Apr 2026 |
| Boyce, L. E. O-6-3064 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 2 | 181K | 20 | by Jan 1993 – Jul 2026 |
| Florence, J. B., Est. O-6-2863 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 6 | 177K | 20 | by Jan 1993 – Jan 2026 |
| Edwards, Jno. Etal -B- O-10-36308 | Pitts Energy Co. only | Janelle (Clear Fork) | Ward | 1 | 177K | 554K | Mar 2000 – Aug 2026 |
| RCC 79 O-11-70694 | Pitts Energy Co. only | Tedbit (San Andres) | Gaines | 2 | 173K | 27.4K | Mar 2018 – Aug 2026 |
| University -Y- O-10-15324 | Pitts Energy Co. only | Dune | Crane | 9 | 172K | 50.7K | by Jan 1993 – Aug 2026 |
| Boyce, Etal Unit O-6-2928 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 3 | 170K | 13 | by Jan 1993 – Aug 2025 |
| University -Z- O-10-15363 | Pitts Energy Co. only | Dune | Crane | 7 | 169K | 12.4K | by Jan 1993 – Aug 2026 |
| Brison Heirs O-6-10726 | Iron Jaw Operating LLC only | Pittsburg | Camp | 1 | 166K | 20 | by Jan 1993 – Jan 2025 |
| Ramsdale, Sam O-6-3001 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 5 | 166K | 11 | by Jan 1993 – Jul 2026 |
| Steenson Unit O-6-4746 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville -B-) | Camp | 1 | 158K | 21 | by Jan 1993 – Jul 2026 |
| Frost, J. O-10-23271 | Pitts Energy Co. only | Waha, W. (Consolidated Delaware) | Reeves | 9 | 158K | 1.93M | by Jan 1993 – May 2020 |
| Loving Fee O-10-33658 | Pitts Energy Co. only | Dimmitt (Cherry Canyon) | Loving | 2 | 154K | 447K | by Jan 1993 – Jun 2007 |
| Edwards, C. W. et Al O-10-36309 | Pitts Energy Co. only | Janelle (Clear Fork) | Ward | 6 | 143K | 1.9M | Mar 2000 – Aug 2026 |
| Perkins, D. E. et Al O-10-27687 | Pitts Energy Co. only | Scott (Delaware) | Reeves | 3 | 141K | 537K | by Jan 1993 – May 2025 |
| Thompson O-11-65618 | Pitts Energy Co. only | Tokio, South (Wolfcamp) | Terry | 1 | 138K | 32K | by Jan 1993 – Aug 2026 |
| University "3-9" O-9-9459 | Pitts Energy Co. only | Spraberry (Trend Area) | Upton | 2 | 138K | 167K | by Jan 1993 – Mar 2024 |
| Stout -A- O-9-1621 | Pitts Energy Co. only | Spraberry (Trend Area) | Reagan | 4 | 134K | 1.68M | by Jan 1993 – Mar 2026 |
| Wilson, J. Wesley, Heirs O-6-5062 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 4 | 132K | 21 | by Jan 1993 – Jul 2026 |
| Kelley O-10-31943 | Pitts Energy Co. only | Scott (Cherry Canyon) | Ward | 2 | 123K | 159K | by Jan 1993 – Jan 2020 |
| Isom, Gilbert, Unit O-6-5057 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville -B-) | Camp | 2 | 117K | 21 | by Jan 1993 – Jul 2026 |
| Puckett, N. O. O-6-10927 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 3 | 117K | 21 | by Jan 1993 – Jul 2026 |
| Williams -A- O-10-32662 | Pitts Energy Co. only | Scott (Cherry Canyon) | Ward | 2 | 114K | 289K | by Jan 1993 – Jan 2020 |
| Allen O-10-35837 | Pitts Energy Co. only | Scott (Cherry Canyon) | Reeves | 1 | 111K | 495K | Jul 1998 – Jan 2020 |
| Lockett, Roy B. O-6-4753 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 1 | 102K | 21 | by Jan 1993 – Jul 2026 |
| Hendon O-11-66380 | Pitts Energy Co. only | Welch | Dawson | 2 | 101K | 24 | by Jan 1993 – Aug 2026 |
| Burke, Royal O-6-5376 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 2 | 99.3K | 10 | by Jan 1993 – Jul 2026 |
| Beaty O-11-66325 | Pitts Energy Co. only | Welch | Dawson | 6 | 93.9K | 24 | by Jan 1993 – Aug 2026 |
| Wilson, Wesley Etal O-6-11351 | HD Operating Co, LLC only | Pittsburg (Sub-Clarksville) | Camp | 4 | 93.2K | 0 | Feb 1998 – Jul 2026 |