| Dcrc Sec. 152 O-4-8648 | Killam Oil Co., Ltd. only | Charamousca (Wilcox 5400, E.) | Duval | 2 | 626K | 2.35K | Jan 1993 – Apr 2026 |
| Dcrc MF NCT-25 O-4-3795 | Reserve Operating Corp. only | Eagle Hill | Duval | 19 | 480K | 21 | Jan 1993 – Apr 2026 |
| Dcrc -a- NCT-12 O-4-2878 | Hilcorp Energy Company only | Seventy-Six, West | Duval | 10 | 193K | 111 | Jan 1993 – Apr 2026 |
| Dcrc MF NCT-64 O-4-7931 | Hilcorp Energy Company only | Lundell | Duval | 10 | 175K | 111 | Jan 1993 – Apr 2026 |
| West 76 Dcrc State Oil Unit O-4-7400 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 11 | 140K | 21 | Jan 1993 – Feb 2026 |
| Dcrc "3B" O-4-12663 | Killam Oil Co., Ltd. only | Moca | Webb | 2 | 103K | 155K | Mar 1997 – Apr 2026 |
| Dcrc "101F" O-4-12555 | Killam Oil Co., Ltd. only | Moca | Webb | 4 | 98.4K | 134K | Apr 1996 – Jan 2001 |
| Dcrc - Section 295 O-4-13744 | Mountain V Texas, LLC only | Casa Blanca, West | Duval | 4 | 93.5K | 0 | Oct 2012 – Apr 2026 |
| Dcrc -a- NCT-2 O-4-9175 | Hilcorp Energy Company only | Hagist Ranch ( Argo) | Duval | 11 | 46.8K | 19 | Jan 1993 – Apr 2026 |
| Dcrc "101B" O-4-12519 | Killam Oil Co., Ltd. only | Moca | Webb | 1 | 41.2K | 390 | Jan 1996 – Sep 2023 |
| Dcrc MF NCT-32 O-4-5536 | Hilcorp Energy Company only | Petrox, N. (Frio 1250) | Duval | 6 | 39.1K | 111 | Jan 1993 – Mar 2026 |
| Dcrc NCT-29 O-4-9826 | Caribbean Energy LLC II only | Brelum (Chernosky) | Duval | 1 | 33.3K | 19 | Jan 1993 – Apr 2026 |
| Dcrc NCT-29 O-4-9671 | Caribbean Energy LLC II only | Brelum (Chernosky, N.) | Duval | 1 | 33.3K | 19 | Jan 1993 – Apr 2026 |
| Dcrc Section 102 O-4-13811 | Dewbre, Jerry C., Trustee only | Brelum (Chernosky) | Duval | 1 | 33K | 0 | Jul 2013 – Apr 2026 |
| Dcrc "3" O-4-12342 | Killam Oil Co., Ltd. only | Moca (Wilcox Sand 2) | Webb | 1 | 30.6K | 199K | Apr 1994 – Jan 1998 |
| Dcrc Sec. 95 O-4-9298 | Killam Oil Co., Ltd. only | Petrox, N. (Frio 1250) | Duval | 1 | 28.9K | 21 | Jan 1993 – Dec 2020 |
| Dcrc Sec. 95 O-4-9366 | Killam Oil Co., Ltd. only | Piedre Lumbre | Duval | 1 | 28.6K | 21 | Jan 1993 – Apr 2026 |
| Dcrc "3E" G-4-148560 | Killam Oil Co., Ltd. only | Moca (Sand 4, Seg. 2) | Webb | 1 | 24.8K | 3.09M | Mar 1994 – Feb 2000 |
| Dcrc "3D" G-4-148539 | Killam Oil Co., Ltd. only | Moca (Sand 4, Seg. 2) | Webb | 1 | 24.4K | 2.51M | Feb 1994 – Feb 2001 |
| Dcrc-Sec. 3A O-4-12313 | Tri-C Resources, Inc. only | Moca (Wilcox 4700) | Webb | 1 | 24.4K | 52.1K | Mar 1994 – Jun 1995 |
| Dcrc -52- O-4-7540 | Eldon Oil Co. only | Lundell, N. (Chernosky 1800) | Duval | 1 | 24K | 21 | May 1993 – Apr 2026 |
| Dcrc Section 76 O-4-13310 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 3 | 22.8K | 0 | May 2005 – Apr 2026 |
| Dcrc "3E" O-4-12529 | Killam Oil Co., Ltd. only | Moca | Webb | 1 | 20.2K | 8 | Feb 1996 – Apr 2026 |
| Dcrc - Section 295 O-4-13930 | Mountain V Texas, LLC only | Charamousca (Cole Cons.) | Duval | 3 | 20.1K | 0 | Nov 2014 – Dec 2024 |
| Dcrc Section 194 O-4-13767 | Dewbre, Jerry C., Trustee only | Lopez, North (Lopez) | Duval | 3 | 19.5K | 0 | Mar 2013 – Apr 2026 |
| Dcrc MF NCT-1 O-4-426 | Hilcorp Energy Company only | Casa Blanca | Duval | 9 | 18.2K | 111 | Jan 1993 – Dec 2012 |
| Dcrc "4" G-4-156953 | Apache Corporation only | Moca | Webb | 1 | 17.1K | 339K | Nov 1995 – Apr 1998 |
| Dcrc -MF- NCT-64 O-4-7199 | Hilcorp Energy Company only | Lundell (Queen City #4) | Duval | 1 | 15.8K | 94 | Jan 1993 – Oct 2000 |
| Dcrc "3" O-4-12683 | Killam Oil Co., Ltd. only | Moca | Webb | 1 | 15.4K | 105K | Feb 1997 – Mar 2001 |
| Dcrc "3D" G-4-148544 | Killam Oil Co., Ltd. only | Moca (Wilcox Sand 3, Seg. 2) | Webb | 1 | 15.1K | 1.79M | Feb 1994 – Apr 2000 |
| Dcrc-Sec. 3 O-4-12223 | Tri-C Resources, Inc. only | Moca (Wilcox 4700) | Webb | 1 | 13.8K | 25.3K | Jul 1993 – Apr 1994 |
| Dcrc-Sec. 101F O-4-12530 | Union Pacific Resources Company only | Moca (Sand 4, Seg. 6) | Webb | 1 | 13.7K | 16.2K | Oct 1995 – Mar 1997 |
| Dcrc MF NCT-38 O-4-630 | Hilcorp Energy Company only | Dejay (Chernosky) | Duval | 1 | 12K | 0 | Mar 2012 – Apr 2026 |
| Dcrc "3E" G-4-164152 | Killam Oil Co., Ltd. only | Moca | Webb | 1 | 11.6K | 1.87M | Mar 1997 – Feb 2009 |
| Dcrc Section 102 O-4-13858 | Dewbre, Jerry C., Trustee only | Hagist Ranch ( Argo) | Duval | 2 | 11K | 0 | Jan 2014 – Apr 2026 |
| Dcrc "3E" G-4-149093 | Killam Oil Co., Ltd. only | Moca (Wilcox Sand 3, Seg. 3) | Webb | 1 | 9.58K | 804K | Mar 1994 – Aug 1999 |
| Dcrc-Sec. 3B O-4-12392 | Collins & Ware, Inc. only | Moca (Sand 1, Seg. 5) | Webb | 1 | 8.25K | 71.3K | Jul 1994 – Jan 1996 |
| Dcrc-Tendido Gas Unit No. 1 G-4-151330 | Rattlesnake Operating Co, LLC only | Ellie C. (Wilcox) | Duval | 1 | 7.55K | 546K | Aug 1994 – Dec 2024 |
| Dcrc 366 G-4-148719 | Hilcorp Energy Company only | Ellie C. (Wilcox) | Duval | 1 | 7.44K | 947K | Feb 1994 – Aug 2000 |
| Dcrc "3" G-4-157381 | Killam Oil Co., Ltd. only | Moca | Webb | 1 | 7.35K | 1.84M | Dec 1995 – Sep 2010 |
| Dcrc Delta O-4-1898 | Killam Oil Co., Ltd. only | Moca | Webb | 7 | 6.42K | 1.04K | Jan 1993 – Jan 1995 |
| Dcrc-Sec. 3A O-4-12258 | Tri-C Resources, Inc. only | Moca (Wilcox Sand 5) | Webb | 2 | 6.42K | 46.8K | Sep 1993 – Oct 1994 |
| Dcrc-SEC.4 O-4-12569 | Union Pacific Resources Company only | Moca | Webb | 2 | 5.99K | 11.3K | Nov 1995 – Mar 1996 |
| Dcrc #59 G-4-195081 | Hilcorp Energy Company only | Tyler T (Wilcox) | Duval | 1 | 5.48K | 949K | Feb 2003 – Jun 2013 |
| Dcrc - State 50 G-4-160156 | Killam Oil Co., Ltd. only | Lundell, NE. (Wilcox 7400) | Duval | 1 | 5.26K | 450K | Jun 1996 – Jan 2002 |
| Dcrc "3E" G-4-149490 | Killam Oil Co., Ltd. only | Moca (Wilcox Sand 2, Seg. 3) | Webb | 1 | 5.07K | 723K | Mar 1994 – Jun 1997 |
| Dcrc "196" NCT-12 G-4-184302 | Killam Oil Co., Ltd. only | Tiger (Queen City) | Duval | 1 | 4.94K | 200K | Jul 2001 – Jan 2004 |
| Dcrc MF NCT-38 O-4-13621 | Hilcorp Energy Company only | Petrox (Frio 1200 -B-) | Duval | 2 | 4.35K | 0 | Aug 2010 – Nov 2012 |
| Dcrc "3A" G-4-146618 | Killam Oil Co., Ltd. only | Moca (Wilcox Sand 4) | Webb | 1 | 4.06K | 228K | Aug 1993 – Feb 2000 |
| Dcrc G-4-177299 | Rodessa Operating Company only | Rich Hurt (Wx. 4TH Hinnant) | Duval | 1 | 3.97K | 1.18M | Mar 2000 – Jan 2005 |