| Conroe Field Unit O-3-11659 | Highmark Energy Operating, LLC | Conroe | 664 | 26.7M | 61.4M | Jan 1993 – Jul 2026 |
| Lake Creek Unit O-3-22828 | Daylight Petroleum LLC | Lake Creek (Chase) | 46 | 2.52M | 6.02M | Nov 1995 – Jul 2026 |
| Pabst Unit O-3-23439 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 3 | 1.25M | 879K | Oct 1997 – Jul 2026 |
| Baldwin O-3-15046 | Eros Operating LLC | Kuhlman | 2 | 545K | 34.5K | Jan 1993 – Jul 2026 |
| Hooper, Fannie -A- O-3-979 | Wheeler Operating Corporation | Conroe | 11 | 443K | 504K | Jan 1993 – Jul 2026 |
| Conroe Field Unit O-3-11664 | Exxon Corp. | Conroe ( Cockfield Upper) | 28 | 261K | 2.84M | Jan 1993 – Oct 1997 |
| Hill O-3-23263 | Daylight Petroleum LLC | Lake Creek (Chase) | 1 | 200K | 1.31M | Mar 1997 – Jul 2026 |
| (M/SW) Wildwood Estates O-3-24622 | Daylight Petroleum LLC | Pinehurst (Wilcox Cons.) | 1 | 159K | 512K | Jul 2004 – Jul 2026 |
| Hooper, Fannie -A- O-3-820 | Wheeler Operating Corporation | Conroe | 3 | 154K | 195K | Jan 1993 – Jul 2026 |
| Lake Creek Unit O-3-22827 | Daylight Petroleum LLC | Lake Creek (Wilcox Consolidated) | 9 | 137K | 3.47M | Nov 1995 – Jul 2026 |
| Lake Creek Unit O-3-9092 | Mitchell Energy Corporation | Lake Creek (No. 5 Sand) | 10 | 128K | 200K | Jan 1993 – Mar 1996 |
| Hill O-3-20610 | Rana Energy Company | Lake Creek (Wilcox, NO.1) | 1 | 119K | 124K | Jan 1993 – Mar 2008 |
| King, R.V. O-3-23265 | Daylight Petroleum LLC | Lake Creek (Chase) | 2 | 114K | 477K | Mar 1997 – Jul 2026 |
| Hutcheson O-3-23262 | Daylight Petroleum LLC | Lake Creek (Chase) | 1 | 114K | 277K | Mar 1997 – Jul 2026 |
| King, R.V. O-3-18492 | Rana Energy Company | Lake Creek (Wilcox, NO.1) | 2 | 95.6K | 363K | Jan 1993 – Sep 1997 |
| Keystone Mills O-3-25398 | Highmark Energy Operating, LLC | Conroe (Middle Wilcox Cons.) | 1 | 74.2K | 163K | May 2009 – Jul 2026 |
| Hutcheson O-3-23684 | Daylight Petroleum LLC | Lake Creek (Wilcox Consolidated) | 1 | 73.1K | 76.7K | Jul 1999 – Jul 2026 |
| Fitch, Mary Louise O-3-345 | Geosouthern Energy Corporation | Bender (Yegua y-5 Sand) | 2 | 59.7K | 19 | Jan 1993 – Aug 2010 |
| Dockins, Jimmie et UX O-3-20493 | Lewis Oil and Gas, Inc. | Bender (Yegua y-5 Sand) | 1 | 59.4K | 6.47K | Jan 1993 – Feb 2003 |
| Hutcheson O-3-19586 | Rana Energy Company | Lake Creek (Wilcox, NO.1) | 1 | 53.4K | 55.4K | Jan 1993 – Mar 2008 |
| Hutcheson O-3-19891 | Mitchell Energy Corporation | Lake Creek, E. (FB "A") | 1 | 53.2K | 102K | Jan 1993 – Oct 1999 |
| Moody, E. O-3-24294 | Highmark Energy Operating, LLC | Conroe (Cons. L) | 1 | 49.5K | 1.3M | Aug 2002 – Jul 2026 |
| (M/SW) Wildwood Estates O-3-24379 | Devon Energy Production Co, L.P. | Pinehurst (Upper Wilcox) | 1 | 44.5K | 278K | Apr 2003 – Mar 2005 |
| King. R.V. "B" O-3-23733 | Sydri Operating, LLC | Lake Creek (Wilcox Consolidated) | 1 | 42.8K | 1.67M | Jul 1999 – Dec 2019 |
| Doggett, Wendell J. O-3-22229 | Mitchell Energy Corporation | Pinehurst (Wilcox G) | 1 | 42.8K | 492K | Oct 1993 – May 1998 |
| Moody, E. O-3-24369 | Highmark Energy Operating, LLC | Conroe (Cons. U) | 2 | 41.8K | 7.22K | Apr 2003 – Jul 2026 |
| Keystone Mills GU O-3-19170 | Magnum Producing & Operating Co. | Conroe, S. (Wilcox 8060) | 1 | 37.7K | 47.1K | Jan 1993 – Jun 2001 |
| H.N. Moore O-3-25259 | Highmark Energy Operating, LLC | Conroe, S. (Wilcox 1) | 1 | 30.8K | 578K | Jun 2008 – Jul 2026 |
| Doggett, Wendell J. O-3-23456 | Devon Energy Production Co, L.P. | Pinehurst (Middle Wilcox) | 1 | 28.8K | 653K | Jan 1998 – Sep 2004 |
| Winslow, J. R. O-3-13694 | Durango Resources Corp. | Tamina (Chase Sand) | 1 | 27.8K | 611 | Jan 1993 – Jun 2015 |
| Lake Creek Unit O-3-9089 | Mitchell Energy Corporation | Lake Creek (No. 1 Sand) | 4 | 22.2K | 89.9K | Jan 1993 – Mar 1996 |
| Hoke, E.C. O-3-23253 | Paragon Energy, Inc. | Giddings (Austin Chalk-3) | 1 | 19.2K | 287K | Mar 1997 – Jul 2026 |
| King, R.V. "A" O-3-23686 | Daylight Petroleum LLC | Lake Creek (Wilcox Consolidated) | 1 | 19K | 337K | Jul 1999 – Jul 2026 |
| (M/SW) Wildwood Estates O-3-23291 | Devon Energy Operating Co., L.P. | Pinehurst (Wilcox G) | 1 | 18.9K | 160K | Apr 1997 – Aug 2003 |
| Dobbins, C L O-3-24599 | Highmark Energy Operating, LLC | Conroe (Cons. U) | 2 | 16K | 35.8K | Aug 2004 – Jul 2026 |
| King, R. V. O-3-21919 | Mitchell Energy Corporation | Lake Creek, E. (Wilcox "E") | 1 | 12.5K | 22.4K | Feb 1993 – Jul 1999 |
| Pinehurst O-3-12592 | Daylight Petroleum LLC | Pinehurst | 2 | 11.8K | 18.1K | Jan 1993 – Jul 2026 |
| Champion O-3-20941 | Black Jack Services, L.L.C. | Splendora, East (7000 Yegua) | 1 | 10.5K | 328 | Jan 1993 – Jul 2026 |
| Dunn -B- O-3-24793 | Wheeler Operating Corporation | Conroe (Cons. U) | 1 | 10.4K | 8 | Nov 2005 – Jul 2026 |
| Keystone Mills Co. O-3-15711 | Tahiti Ptrs Enrgy Solutions Corp | Conroe, S. (Wilcox 8900) | 1 | 9.17K | 117 | Jan 1993 – Sep 2019 |
| M & M Minerals O-3-17249 | O'Sand Production, Inc. | Indian Hills, North (G Sand) | 1 | 8.19K | 42.6K | Jan 1993 – Jul 1997 |
| Madeley, AA & DA O-3-24498 | Denbury Onshore, LLC | Conroe (Cons. U) | 1 | 7.21K | 3.45K | Jan 2004 – Nov 2013 |
| Pinehurst O-3-23823 | Mitchell Energy Company L.P. | Pinehurst (Middle Wilcox) | 1 | 6.41K | 374K | Aug 1999 – Mar 2002 |
| McComb, W. P. Etal O-3-822 | Diasu Oil & Gas Co., Inc. | Conroe | 1 | 4.88K | 18 | Jan 1993 – Mar 1998 |
| Pinehurst O-3-23225 | Mitchell Energy Corporation | Pinehurst (Middle Wilcox) | 1 | 4.87K | 63.1K | Jul 1996 – Feb 1999 |
| Winslow Gas Unit 'C' O-3-27678 | Daylight Petroleum LLC | Pinehurst (Chase) | 1 | 4.31K | 45.6K | Jan 2020 – Jul 2026 |
| King, R. V. "A" O-3-23631 | Mitchell Energy Corporation | Lake Creek, E. (Wilcox "E") | 1 | 4.05K | 69.6K | Nov 1998 – Oct 1999 |
| Texas A&m O-3-21017 | Petroleum Capital, L.C. | Springer (Yegua Y-2) | 1 | 4.02K | 7 | Jan 1993 – Mar 1997 |
| Brautigam Gas Unit O-3-17274 | Atasca Resources, Inc. | Deckers Prairie (Wilcox) | 1 | 3.88K | 17.1K | Jan 1993 – Aug 2003 |
| Winslow "A" O-3-24226 | Devon Energy Production Co, L.P. | Pinehurst (Middle Wilcox) | 1 | 3.37K | 75.6K | Aug 2001 – Mar 2005 |