| Stickline G-10-289121 | MCM Operating, LLC only | Phantom (Wolfcamp) | Ward | 1 | 431K | 4.86M | Oct 2019 – Jul 2026 |
| Chalkline Ghost A G-1-299001 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 319K | 1.33M | Jan 2025 – Aug 2026 |
| Berryman, et al Unit G-4-172812 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 288K | 10.5M | Feb 1999 – Dec 2025 |
| Beaurline, A. W. G-4-164781 | Merit Energy Company only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 263K | 9.96M | Jul 1997 – May 2017 |
| Pipeline State Unit 58 10-03 G-10-287596 | EOG Resources, Inc. only | Ford, West (Wolfcamp) | Reeves | 1 | 263K | 2.6M | Oct 2018 – Aug 2026 |
| Valley G-4-206475 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 243K | 4.69M | Nov 2004 – Aug 2026 |
| Beaurline, A. W. G-4-163926 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 233K | 10.1M | Apr 1997 – Sep 2001 |
| Chalkline Ghost B G-1-298924 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 227K | 955K | Jan 2025 – Aug 2026 |
| Beaurline, A. W. G-4-165269 | Merit Energy Company only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 222K | 2.74M | Aug 1997 – Aug 2026 |
| Madeline 55-26 G-14-282856 | Presidio Petroleum LLC only | Hemphill (Douglas) | Hemphill | 1 | 214K | 3.12M | Jan 2017 – Aug 2026 |
| Chapman Ranch G-4-190455 | Proline Energy Resources Inc only | Mobil-David (Anderson) | Nueces | 1 | 202K | 3.79M | Jul 2002 – Dec 2010 |
| Apex GU G-4-199536 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 195K | 5.01M | Nov 2003 – Aug 2026 |
| Chapman Ranch C G-4-259450 | Proline Energy Resources Inc only | Mobil-David (Anderson) | Nueces | 1 | 191K | 11.8M | Feb 2011 – Feb 2020 |
| Stone Gas Unit G-4-43621 | Proline Energy Resources Inc only | La Sal Vieja (Frio Cons) | Willacy | 1 | 186K | 5.29M | by Jan 1993 – Apr 2021 |
| Madeline G-3-288420 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Washington | 1 | 173K | 5.83M | Jul 2018 – Jul 2026 |
| Pipeline State Unit G-10-297811 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 169K | 1.82M | Sep 2024 – Aug 2026 |
| Koster-Vastar G-3-178495 | Dominion Expl. & Prod., Inc. only | Red Line (Hartburg, Upper) | Orange | 1 | 167K | 483K | Mar 2000 – Aug 2003 |
| Valley G-4-200931 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 165K | 1.36M | Mar 2004 – Dec 2025 |
| Crites A G-4-212182 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 158K | 3.48M | Jun 2005 – Dec 2025 |
| Kampfenkel, et al G. U. G-4-174485 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 154K | 4.17M | Aug 1999 – Jul 2017 |
| Pipeline State Unit G-10-297952 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 153K | 1.67M | Sep 2024 – Aug 2026 |
| Escondido CRK-Evangeline (SA) B2 G-2-288655 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 148K | 3.54M | Jan 2020 – Apr 2026 |
| Madeline 55-26 A G-14-284457 | Presidio Petroleum LLC only | Hemphill (Douglas) | Hemphill | 1 | 147K | 2.48M | Oct 2017 – Aug 2026 |
| Madeline 26 G-14-281290 | Presidio Petroleum LLC only | Hemphill (Douglas) | Hemphill | 1 | 135K | 1.81M | May 2016 – Aug 2026 |
| Farms, I. P. G-3-155093 | Proline Energy Resources Inc only | Chocolate Bayou (IP) | Brazoria | 1 | 134K | 12.3M | Mar 1995 – Sep 1999 |
| Smith L G-4-205634 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 129K | 3.39M | Oct 2004 – Jun 2026 |
| Beaurline, A. W. G-4-167447 | Merit Energy Company only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 128K | 2.59M | Feb 1998 – Aug 2026 |
| Berryman et al Unit G-4-175113 | Proline Energy Resources Inc only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 126K | 4.33M | Nov 1999 – Dec 2025 |
| La Blanca Gas Unit G-4-163818 | Proline Energy Resources Inc only | La Blanca ( 9400) | Hidalgo | 1 | 121K | 7.63M | May 1997 – Mar 2010 |
| Pipeline State Unit G-10-297953 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 118K | 3.07M | Sep 2024 – Aug 2026 |
| Pearline G-3-277052 | Square Mile Energy, L.L.C. only | Glasscock (Wilcox 11,200) | Colorado | 1 | 114K | 3.23M | Aug 2014 – Sep 2018 |
| Henderson, Catherine -a- Unit G-3-213204 | Sideline Oil & Gas, L.P. only | Willis Marsh (11,900 Yegua) | Liberty | 1 | 110K | 1.45M | Nov 2005 – Feb 2020 |
| Priday Unit G-4-164809 | Proline Energy Resources Inc only | Geronimo (Frio Lower) | San Patricio | 1 | 110K | 1.22M | Sep 1997 – Jun 2026 |
| Stickline G-10-299937 | MCM Operating, LLC only | Phantom (Wolfcamp) | Ward | 1 | 108K | 957K | Jul 2025 – Jul 2026 |
| Knipe Gas Unit G-4-135931 | Proline Energy Resources Inc only | Midway, East (10700) | San Patricio | 1 | 107K | 6.09M | by Jan 1993 – Aug 2024 |
| Crites G.U. G-4-269762 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 107K | 1.19M | Dec 2012 – Dec 2019 |
| Shell "C" G-4-209899 | Proline Energy Resources Inc only | Midway, South (Consolidated) | San Patricio | 1 | 104K | 1.72M | May 2005 – Aug 2026 |
| Ybanez G-2-107031 | Sandel Operating Company only | Charline (Forney) | Live Oak | 1 | 102K | 2.19M | by Jan 1993 – Jun 2018 |
| Gas Storage Unit #2 G-13-48408 | Atmos Pipeline - Texas only | La-Pan (Mississippian) | Clay | 1 | 98.2K | 26.8K | by Jan 1993 – Mar 2026 |
| East Blessing Unit G-3-214571 | Baseline Oil & Gas Corp. only | Potthast (Middle Tex Miss) | Matagorda | 1 | 96.7K | 1.33M | Nov 2005 – Feb 2009 |
| Pipeline State Unit G-10-297810 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 96.5K | 2.84M | Sep 2024 – Aug 2026 |
| Tourmaline Unit G-3-149733 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 90.4K | 3.36M | May 1994 – May 2026 |
| Houdmann Gas Unit G-2-106980 | McCombs Energy, Ltd. only | Charline (Forney) | Live Oak | 1 | 84.8K | 1.9M | by Jan 1993 – May 2011 |
| Peterson-Nuss Unit G-4-148986 | Proline Energy Resources Inc only | Corpus Christi, W (Consolidated) | Nueces | 1 | 84.4K | 1.4M | Mar 1994 – Aug 2026 |
| Farms, I. P. Unit A G-3-163888 | Proline Energy Resources Inc only | Chocolate Bayou (Andrau) | Brazoria | 1 | 81.8K | 2.43M | May 1997 – May 2001 |
| Lyne Gas Unit -A- G-2-101345 | Sandel Operating Company only | Charline (Forney) | Live Oak | 1 | 79.6K | 6.76M | by Jan 1993 – Jul 2025 |
| La Blanca Gas Unit G-4-11352 | Proline Energy Resources Inc only | La Blanca ( 9400) | Hidalgo | 1 | 78.7K | 2.6M | by Jan 1993 – Aug 2026 |
| Caroline Pielop Unit 5 G-1-260230 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 76.5K | 4.66M | Apr 2011 – Aug 2026 |
| Holmes G-3-209682 | Proline Energy Resources Inc only | Rankin (Cook Mtn. IV) | Harris | 1 | 76.5K | 6.47M | May 2005 – Jul 2024 |
| Jones-Liner (Alloc) G-6-286070 | Diversified Production LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 75.3K | 4.7M | Nov 2018 – Aug 2026 |