| S.T. 23-L N/2 SW/4 G-3-246589 | Llog Exploration Texas, L.P. only | Block 23L (LH-13) | High IS-LB | 1 | 735K | 9.61M | Apr 2008 – Mar 2013 |
| Kowalik 228-1R G-2-294680 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 547K | 1.82M | Oct 2018 – Aug 2026 |
| Tarantula Hawk 2-40 B G-10-288040 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 538K | 1.95M | Nov 2019 – Aug 2026 |
| Kowalik 228-1R G-2-294676 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 507K | 1.86M | Oct 2018 – Aug 2026 |
| Bluejack 2H G-1-300609 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 418K | 865K | Jun 2018 – Aug 2026 |
| Kowalik 228-1R G-2-294679 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 414K | 1.57M | Oct 2018 – Aug 2026 |
| Tarantula Hawk 2-40 A G-10-288042 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 351K | 1.06M | Nov 2019 – Sep 2025 |
| State Tract 24-L S/2 SW/4 G-3-230456 | W&T Offshore, Inc. only | High Island BLK 24L (LJ) | High IS-LB | 1 | 319K | 53.8M | Nov 2006 – Aug 2024 |
| Kowalik 228-1R AC G-2-275704 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 298K | 1.49M | Sep 2014 – Aug 2026 |
| WA Blackwell-MCC-BLK 2 (SA) B7 G-2-295523 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 265K | 2.31M | Feb 2024 – Aug 2026 |
| Kowalik 228-1R G-2-265799 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 245K | 740K | Dec 2010 – Nov 2019 |
| Kowalik 228-1R G-2-294681 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 241K | 807K | Sep 2014 – Aug 2026 |
| State Tract 24-L N/2 SW/4 G-3-231670 | W&T Offshore, Inc. only | High Island BLK 24L (LJ) | High IS-LB | 1 | 207K | 28.8M | Apr 2007 – Aug 2026 |
| WA Blackwell-MCC-BLK 2 (SA) B8 G-2-295396 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 189K | 2.12M | Feb 2024 – Aug 2026 |
| Kowalik 228-1R G-2-288734 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 176K | 784K | Sep 2014 – Aug 2026 |
| University BLK 21 G-10-195190 | TS Oil, LLC only | Apollo, East (Wolfcamp) | Winkler | 1 | 83K | 994K | May 2003 – Feb 2025 |
| Kowalik 228-1R AC G-2-281072 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 80.6K | 313K | Nov 2015 – May 2026 |
| University BLK 21 G-10-219151 | TS Oil, LLC only | Apollo, East (Wolfcamp) | Winkler | 1 | 61.2K | 1.49M | Nov 2003 – Aug 2026 |
| Kowalik 228-1R AC G-2-288629 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 59.5K | 264K | Nov 2015 – Apr 2026 |
| University BLK 21 G-10-197443 | Iskandia Energy Operating, Inc. only | Apollo, East (Wolfcamp) | Winkler | 1 | 59.3K | 698K | May 2003 – Aug 2020 |
| High Island 24L SL 59455 G-3-250676 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-DD, HF) | High IS-LB | 1 | 46.8K | 812K | May 2009 – Mar 2013 |
| Galveston Block 278-L(mf-106411) G-3-226926 | Hall-Houston Expl. II, L.P. only | Galveston 278-L (Miocene Cons.) | Galveston-LB | 1 | 25.4K | 1.69M | Jul 2007 – Dec 2008 |
| University BLK 21 G-10-195193 | TS Oil, LLC only | Apollo, East (Wolfcamp) | Winkler | 1 | 24.7K | 287K | May 2003 – Jan 2024 |
| University BLK 21 G-10-219389 | TS Oil, LLC only | Apollo, East (Wolfcamp) | Winkler | 1 | 22.9K | 86.7K | Jun 2006 – Aug 2026 |
| HI 22-L (TX S/L M-95936) G-3-153779 | Global Natural Resources Corp. only | Block 23-L(lh-10) | High IS-LB | 1 | 22.5K | 2.35M | Apr 1995 – May 1996 |
| University BLK 21 G-10-207516 | Sheridan Production Company, LLC only | Apollo, East (Wolfcamp) | Winkler | 1 | 21.4K | 234K | Nov 2003 – Oct 2012 |
| High Island 24-L, N/2, NW/4 G-3-244703 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24-L (FJ Sand) | High IS-LB | 1 | 18.9K | 1.17M | Aug 2008 – Jul 2012 |
| Kowalik 228-1 G-2-246035 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 18.5K | 57.6K | Nov 2008 – Dec 2009 |
| State Lease 59454 G-3-133033 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-D, HC) | High IS-LB | 1 | 18K | 1.55M | by Jan 1993 – Jul 2015 |
| Brown, Herman Gas Unit G-6-170898 | Mmgl East Texas III, LLC only | Carthage (Chadwick 2) | Panola | 1 | 17.6K | 665K | Sep 1998 – Dec 2016 |
| Grant Meek 236 G-14-249606 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 15.6K | 841K | Apr 2009 – Apr 2020 |
| S.T. 218-L S/2 SE/4 G-3-229316 | Apex Oil & Gas, Inc. only | Galveston Block 218-L (Rob M-1) | Galveston-LB | 1 | 13.1K | 2.29M | Jun 2006 – Nov 2008 |
| Westbrook 28 G-10-197846 | Burk Royalty Co., Ltd. only | Conger (Penn) | Sterling | 1 | 12.9K | 342K | Jun 2003 – Aug 2026 |
| Westbrook 21 G-10-171409 | Burk Royalty Co., Ltd. only | Conger (Penn) | Sterling | 1 | 10.2K | 578K | Oct 1998 – Aug 2026 |
| High Island 24L (SL59455) G-3-150773 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-B, GP) | High IS-LB | 1 | 6.64K | 622K | Jun 1994 – Jan 1995 |
| High Island 24L SL59456 G-3-167568 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-E, HF) | High IS-LB | 1 | 5.98K | 690K | Feb 1998 – Mar 1999 |
| High Island 24L (SL 59455) G-3-142347 | Vastar Resources, Inc. only | High Island BLK 24L (FB-B, HC) | High IS-LB | 1 | 5.94K | 1.01M | by Jan 1993 – Jan 1994 |
| High Island 24L SL59456 G-3-180132 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-E, JG) | High IS-LB | 1 | 5.89K | 838K | May 2000 – Apr 2003 |
| Kirk 278 G-14-249439 | BE Anadarko II, LLC only | Trosper (Atoka) | Lipscomb | 1 | 5.89K | 415K | Mar 2009 – Sep 2024 |
| Slick 230 " a " G-4-194399 | Merit Energy Company only | Rincon, N. (Vicksburg Cons.) | Starr | 1 | 5.88K | 924K | Mar 2003 – Mar 2023 |
| Univ. BLK 21 GU G-10-103775 | Forest Oil Corporation only | Apollo (Atoka) | Winkler | 1 | 3.84K | 1.8M | by Jan 1993 – Jul 2002 |
| State Lease 59455 G-3-138259 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-C, GK) | High IS-LB | 1 | 3.72K | 3.9M | by Jan 1993 – May 1998 |
| State Lease 59455 G-3-47122 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-C, HC) | High IS-LB | 1 | 3.72K | 3.08M | by Jan 1993 – Jun 2016 |
| High Island 24L SL59456 G-3-167709 | Vastar Resources, Inc. only | High Is. BLK 24L (FB-F, J-Ser) | High IS-LB | 1 | 3.47K | 1.32M | Sep 1997 – May 1999 |
| S/L 59455, High Island 24L G-3-138911 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-C, HC) | High IS-LB | 1 | 2.76K | 4.06M | by Jan 1993 – Jun 2016 |
| S.T. 218-L S/2 SE/4 G-3-246824 | Hall-Houston Expl. III, L.P. only | Galveston Block 218-L (RL-5SAND) | Galveston-LB | 1 | 2.71K | 653K | Nov 2008 – Mar 2010 |
| Wight, A. W. G-10-166519 | Contango Resources, LLC only | Block 27 (Tubb) | Crane | 1 | 2.62K | 152K | Nov 1997 – Sep 2012 |
| High Island 24L SL 59455 G-3-174818 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-C, GK) | High IS-LB | 1 | 2.58K | 2.84K | Oct 2007 – Mar 2008 |
| Black 23 G-8-260690 | Texxol Operating Company, Inc. only | Buffalo Hill (Congl.) | Stephens | 1 | 2.58K | 604K | Jul 2011 – Aug 2026 |
| Jonesville G-6-111127 | Winchester Production Co., Ltd. only | Waskom (Travis Peak 2) | Harrison | 1 | 2.42K | 243K | by Jan 1993 – Oct 2005 |