| University "23" O-10-35027 | Endeavor Energy Resources L.P. only | Block 6 (Strawn) | Andrews | 1 | 2.3K | 0 | Jul 1996 – Mar 1999 |
| State Tract 335-L SW/4 G-3-133912 | Fairways Spec. Sales & Serv Inc only | Brazos Block 335-L (C-54) | Brazos-LB | 1 | 2.3K | 1.75M | Jan 1993 – Nov 1995 |
| Rosborough Gas Unit "B" G-6-142633 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.3K | 749K | Jan 1993 – Apr 2026 |
| Pepper Gas Unit 1 G-6-242057 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.3K | 682K | Nov 2007 – Mar 2026 |
| Hill Unit G-10-195324 | XTO Energy Inc. only | Block 16 (Devonian) | Ward | 1 | 2.29K | 3.59M | Apr 2003 – Apr 2026 |
| Patterson-Herrin Gas Unit G-6-209229 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.29K | 577K | Jan 2005 – May 2022 |
| Block 31 Unit G-10-279627 | Hilcorp Energy Company only | Block 31 (Devonian) | Crane | 1 | 2.29K | 872K | Aug 2015 – Apr 2026 |
| Blocker Ware G-6-234226 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 2.28K | 213K | Sep 2007 – Mar 2026 |
| Brown, Maude B. Gas Unit G-6-88496 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.27K | 841K | Jan 1993 – Apr 2023 |
| University "22" G-9-98612 | Bridwell Oil Co. only | Block 4 (Devonian) | Upton | 1 | 2.23K | 558K | Jan 1993 – Feb 2011 |
| Muley D O-10-61767 | Vin Fisher Operating, Inc. only | Block a-34 (San Andres) | Andrews | 3 | 2.23K | 0 | Oct 2024 – Apr 2026 |
| Anderson G-6-202278 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.23K | 512K | May 2004 – Apr 2026 |
| Cook Gas Unit G-6-222340 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.21K | 550K | Jul 2006 – Mar 2026 |
| Blalock Gas Unit 2 G-6-224244 | TGNR East Texas II LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.21K | 561K | Nov 2006 – Nov 2017 |
| State Lease 103229 G-3-235779 | Anatexas Offshore, Inc. only | Brazos Block 446L SW-4 (M15C) | Brazos-LB | 1 | 2.21K | 2.1M | Feb 2008 – Sep 2011 |
| Harris-Munden Gas Unit G-6-211081 | Encana Oil & Gas(usa) Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.19K | 262K | Nov 2004 – Mar 2007 |
| High Island Block 55-L G-3-139947 | Louisiana Natural Gas E&P Co. only | High Island BLK.55-L (Disc. B-4) | High IS-LB | 1 | 2.19K | 1.63M | Jan 1993 – Mar 1997 |
| State Tract 338-L Unit G-3-143045 | Samson Contour Energy E&P, LLC only | Brazos Block 338-L (Miocene) | Brazos-LB | 1 | 2.19K | 5.69M | Jan 1993 – Apr 2003 |
| Brown, Katherine J. Gas Unit G-6-140296 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.18K | 809K | Jan 1993 – Apr 2026 |
| Chauvin-Landry Gas Unit G-6-142397 | Sponte Operating, Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.16K | 609K | Jan 1993 – Mar 2010 |
| University -12-E- O-10-32159 | Sandridge Expl. and Prod., LLC only | Block 12 (Wolfcamp) | Andrews | 1 | 2.16K | 22.9K | Jan 1993 – Apr 1996 |
| Thelma Mosley Gas Unit G-6-282978 | Valence Operating Company only | Blocker (Cotton Valley) | Harrison | 1 | 2.16K | 1.01M | Aug 2017 – Apr 2026 |
| 9015 JV-P Block -9- B O-10-33409 | BTA Oil Producers only | Block 9, South (Ellenburger) | Andrews | 1 | 2.15K | 2.17K | Jan 1993 – Apr 1994 |
| University "11B" O-10-26155 | Discovery Operating, Inc. only | Block 11 (Wichita, LO) | Andrews | 1 | 2.13K | 1.08K | Jan 1993 – Aug 1994 |
| University -22- O-9-17538 | Bridwell Oil Co. only | Block 4 (Wolfcamp) | Upton | 1 | 2.13K | 959 | Jan 2011 – Sep 2015 |
| Anderson G-6-224720 | Sabine Oil & Gas Corporation only | Blocker (Cotton Valley) | Harrison | 1 | 2.13K | 374K | Dec 2006 – Nov 2017 |
| Roden, Mary L. Gas Unit G-6-142210 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.12K | 752K | Jan 1993 – Aug 2013 |
| Rosborough Gas Unit "B" G-6-142339 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.1K | 710K | Jan 1993 – Aug 2014 |
| University 20-22 O-10-35628 | Pogo Producing Company only | Block 20 (Delaware Cons.) | Winkler | 1 | 2.09K | 0 | Dec 1997 – Apr 2002 |
| Blocker Heirs G-6-232531 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 2.05K | 373K | Jun 2007 – Apr 2026 |
| Water Dog O-9-7927 | Remuda Operating Company only | Block 46, East (Grayburg) | Crockett | 1 | 2.05K | 69 | Jan 1993 – Sep 1998 |
| Dinkle G-6-225122 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.05K | 794K | Dec 2006 – Apr 2026 |
| Cooper-43- G-10-55979 | Arco Permian only | Block 16 (Devonian) | Ward | 1 | 2.04K | 690K | Jan 1993 – Apr 1999 |
| Glasscock "S" Fee G-10-220066 | Burk Royalty Co., Ltd. only | Block 32 (Wolfcamp) | Glasscock | 1 | 2.03K | 86.5K | Sep 2006 – Sep 2024 |
| Dickard G-6-230649 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.03K | 770K | Jun 2007 – Apr 2026 |
| State University DG O-10-34458 | Roca Operating, Inc. only | Block 16 (Cherry Canyon) | Ward | 1 | 2.01K | 23 | Apr 1995 – Feb 2004 |
| Mohon GU G-6-208433 | Soldier Creek Energy, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.01K | 210K | Dec 2004 – Oct 2025 |
| University -12-E- O-10-31765 | Dallas Production, Inc. only | Block 12, East (McKee) | Andrews | 1 | 2.01K | 7.2K | Jan 1993 – Jan 1995 |
| Block 31 Unit G-10-279543 | Hilcorp Energy Company only | Block 31 (Devonian) | Crane | 1 | 2K | 152K | Oct 2015 – Apr 2026 |
| Blalock "A" G-6-222252 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 1.97K | 556K | Jul 2006 – Apr 2026 |
| East Block A G-4-282924 | D. O. G. Operating, LLC only | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 1.95K | 37.5K | Jul 2017 – Mar 2026 |
| Hill Unit G-10-145935 | XTO Energy Inc. only | Block 16 (Montoya) | Ward | 1 | 1.95K | 1.44M | May 1993 – Apr 2026 |
| Block 31 Unit G-10-279748 | Hilcorp Energy Company only | Block 31 (Devonian) | Crane | 1 | 1.95K | 617K | Aug 2015 – Apr 2026 |
| 440L Unit G-3-218420 | Capco Offshore of Texas, Inc. only | Brazos Block 440 (-W- Sd.) | Brazos-LB | 1 | 1.94K | 1.32M | Oct 2005 – May 2009 |
| University "I" O-9-9430 | Vanco Oil & Gas Corp. only | Block 46, East (Grayburg) | Crockett | 1 | 1.93K | 21 | Jan 1993 – Sep 1998 |
| Blalock Gas Unit 2 G-6-225076 | TGNR East Texas II LLC only | Blocker (Cotton Valley) | Harrison | 1 | 1.92K | 499K | Jan 2007 – Apr 2022 |
| Dinkle G-6-222255 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 1.92K | 412K | May 2006 – Apr 2026 |
| Blocker Heirs G-6-237723 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.91K | 341K | May 2008 – Apr 2026 |
| Muley C O-10-62281 | Vin Fisher Operating, Inc. only | Block a-34 (San Andres) | Andrews | 4 | 1.91K | 0 | Mar 2025 – Apr 2026 |
| University 22-18 "B" O-10-35117 | Texaco E & P Inc. only | Block 18 (Cherry Canyon) | Ward | 1 | 1.91K | 45.8K | Aug 1996 – Feb 2000 |