| Moore Estate O-3-7353 | Apache Corporation only | Bay City (8650 Frio) | Matagorda | 1 | 199K | 279K | Sep 1994 – Jan 2008 |
| Moore Estate O-3-9467 | Texian Operating Company, LLC only | Bay City (7000 Frio) | Matagorda | 2 | 93.5K | 329K | by Jan 1993 – Aug 2026 |
| Pierce Estate G-3-200393 | Kebo Oil & Gas, Inc. only | Blessing (Frio 8430) | Matagorda | 1 | 46.6K | 315K | Feb 2004 – Jun 2013 |
| Moore Estate O-3-9618 | Apache Corporation only | Bay City (8480 Frio) | Matagorda | 3 | 43K | 73.2K | by Jan 1993 – Mar 1996 |
| Pierce Estate G-3-175341 | Cypress Production, Inc. only | Sugar Valley (Frio 9,000) | Matagorda | 1 | 42.2K | 3.44M | Sep 1999 – Mar 2005 |
| Moore Estate O-3-22791 | Texian Operating Company, LLC only | Bay City (7500 Frio) | Matagorda | 1 | 39K | 68K | Oct 1995 – Aug 2002 |
| Pierce Estate O-3-25050 | Kebo Oil & Gas, Inc. only | Blessing (F-19) | Matagorda | 1 | 35.1K | 33.6K | Jun 2007 – Dec 2010 |
| Pierce Estate G-3-177936 | Cypress Production, Inc. only | Sugar Valley (Frio 9,000) | Matagorda | 1 | 29.1K | 2.45M | Jul 2000 – Sep 2004 |
| Pierce Estate O-3-26169 | Kebo Oil & Gas, Inc. only | Blessing (Frio 8430) | Matagorda | 1 | 20.8K | 8.3K | Jul 2013 – May 2025 |
| State Tract 109 O-3-24987 | Progenies Operating LLC only | Silver Lake (11,700) | Matagorda | 1 | 20.5K | 191K | Aug 2006 – Nov 2018 |
| Richers, E. O-3-23404 | Rosenthal, Stanley H. Estate Of only | Hamman (-P- Sand) | Matagorda | 1 | 10.8K | 0 | Apr 1997 – Jun 2013 |
| Pierce, J.P. Estate O-3-19457 | Unit Petroleum Company only | Palacios (Frio -A-) | Matagorda | 1 | 10.3K | 15K | by Jan 1993 – Jun 1998 |
| Pierce Estates G-3-51155 | Bushmaster Production Comp, LLC only | Duncan Slough, SE. (Frio Lo.) | Matagorda | 1 | 10K | 696K | by Jan 1993 – Mar 2026 |
| State Tract 110 G-3-110845 | Cameron, Paul E., Jr., Inc. only | Turtle Point (1ST Text. Miss SD) | Matagorda | 1 | 9.19K | 32.1K | by Jan 1993 – Apr 1999 |
| Pierce Estate G-3-224241 | Cypress Production, Inc. only | Sugar Valley (Frio 9,000) | Matagorda | 1 | 8.81K | 1.31M | Dec 2006 – Oct 2012 |
| Pierce Estate 'C' G-3-276081 | Ballard Exploration Company,inc. only | Magnet Withers (Martinez SD) | Matagorda | 1 | 5.6K | 943K | Jun 2014 – Dec 2017 |
| Moore Estate O-3-20254 | Apache Corporation only | Bay City (8200 Frio) | Matagorda | 2 | 5.52K | 14.2K | by Jan 1993 – Sep 1994 |
| Hahn Estate G-3-227324 | Denali Oil & Gas Management, LLC only | Hardeman Slough | Matagorda | 1 | 4.45K | 819K | Mar 2007 – Jul 2010 |
| Moore Estate O-3-22553 | Apache Corporation only | Bay City (7900 Frio) | Matagorda | 1 | 4.29K | 11.2K | Oct 1994 – Sep 1995 |
| Nelsen, G. A. et al - State G.U. G-3-147663 | Unit Petroleum Company only | Collegeport, North (C-2 Sand) | Matagorda | 1 | 3.44K | 272K | Sep 1993 – Oct 1997 |
| Reinke Estate G-3-48231 | EOG Resources, Inc. only | Hamman, East (10,100 Frio) | Matagorda | 1 | 2.93K | 223K | by Jan 1993 – Jan 2001 |
| Terry, R.E. Estate G-3-85487 | Brown & Borelli, Inc. only | Blessing, NE. (F-16) | Matagorda | 1 | 2.85K | 395K | by Jan 1993 – Sep 2017 |
| Moore Estates G-3-243799 | Texian Operating Company, LLC only | Bay City (8300) | Matagorda | 1 | 2.67K | 95.6K | Jun 2008 – May 2021 |
| Lake Austin State G-3-201098 | Bexco Operating, Inc. only | Lake Austin State (Mio. 15 SD) | Matagorda | 1 | 1.61K | 2.95M | Feb 2004 – Jun 2013 |
| Moore Estate O-3-12319 | Apache Corporation only | Bay City (8700 Frio) | Matagorda | 1 | 1.56K | 3.19K | by Jan 1993 – Jan 1994 |
| Doss, William G-3-204433 | Bexco Operating, Inc. only | Lake Austin State (Mio. 15 SD) | Matagorda | 1 | 1.46K | 1.88M | Oct 2004 – Jun 2011 |
| Moore Estate G-3-158084 | Apache Corporation only | Bay City (8300) | Matagorda | 1 | 1.14K | 144K | Apr 1996 – Jul 1998 |
| State Tract 110 O-3-23672 | Enertech Resources, Inc. only | Turtle Point (1ST Text. Miss SD) | Matagorda | 1 | 1.13K | 1.18K | May 1999 – Jul 2000 |
| Koch State O-3-20626 | Hugoton Operating Company, Inc. only | Blessing (F-11) | Matagorda | 1 | 1.11K | 1.16K | Feb 1995 – Oct 1998 |
| Lake Austin State G-3-198339 | Bexco Operating, Inc. only | Lake Austin State (Mio. 16.5 SD) | Matagorda | 1 | 100 | 24.9K | Nov 2003 – Feb 2004 |
| Letulle Estate G-3-164232 | Dominion Expl. & Prod., Inc. only | Rusty (1900) | Matagorda | 1 | 47 | 149K | Jun 1997 – Jul 2003 |
| Trull, B.W. Estate O-3-21880 | Sue-Ann Production Company only | Pheasant, SW. (8150 B-1) | Matagorda | 1 | 15 | 1 | Mar 1994 – Mar 1994 |
| Letulle Estate "C" G-3-167561 | Dominion Expl. & Prod., Inc. only | Rusty (2600) | Matagorda | 1 | 1 | 287K | Feb 1998 – Aug 2003 |
| State Tract 193 G-3-86937 | Main Energy, Inc. only | Matagorda Bay, Ne.(miocene 2650) | Matagorda | 1 | 0 | 0 | — |
| State Tract 194 G-3-86448 | Chaparral Energy, L.L.C. only | Matagorda Bay, Ne.(miocene 2650) | Matagorda | 1 | 0 | 0 | — |
| State Tract 194 G-3-77231 | BKN Oil & Gas, Inc. only | Matagorda Bay, Ne.(miocene 2700) | Matagorda | 1 | 0 | 0 | — |
| State Tract 309 G-3-86111 | Burgard, Trustee only | Oliver Point, S (3500) | Matagorda | 1 | 0 | 0 | — |
| State Tract 193 G-3-76952 | BKN Oil & Gas, Inc. only | Matagorda Bay, Ne.(miocene 2650) | Matagorda | 1 | 0 | 0 | — |
| State Tract 182 G-3-54302 | Enserch Exploration, Inc only | Matagorda Bay, S (Miocene 3600) | Matagorda | 1 | 0 | 0 | — |
| State Tract 179 G-3-83244 | BKN Oil & Gas, Inc. only | Matagorda Bay, Ne.(miocene 2650) | Matagorda | 1 | 0 | 0 | — |
| State Tract 159 G-3-83243 | BKN Oil & Gas, Inc. only | Matagorda Bay, S. (Miocene 2700) | Matagorda | 1 | 0 | 0 | — |
| State Tract 159 G-3-74738 | Main Energy, Inc. only | Matagorda Bay, S (Miocene 2800) | Matagorda | 1 | 0 | 19.2K | by Jan 1993 – Jul 1994 |
| State Tract 303 G-3-82972 | BKN Oil & Gas, Inc. only | Oyster Lake, W. (1700) | Matagorda | 1 | 0 | 0 | — |
| State Tract 194 G-3-109886 | Sterling Expl. & Prod. Co., LLC only | Matagorda Bay, NE (Miocene 1400) | Matagorda | 1 | 0 | 119K | by Jan 1993 – Feb 1996 |
| State Tract 303 G-3-82971 | BKN Oil & Gas, Inc. only | Oyster Lake, W. (2900) | Matagorda | 1 | 0 | 0 | — |
| State Tract 193 G-3-73963 | Main Energy, Inc. only | Matagorda Bay, Ne.(miocene 2650) | Matagorda | 1 | 0 | 0 | — |
| Texas State Tract 193 G-3-53936 | BKN Oil & Gas, Inc. only | Matagorda Bay Blk. 193 (2750) | Matagorda | 1 | 0 | 2.91K | by Jan 1993 – Jun 1994 |
| State Tract 194 G-3-110010 | Sterling Expl. & Prod. Co., LLC only | Matagorda Bay, NE (Miocene 2570) | Matagorda | 1 | 0 | 9.66K | by Jan 1993 – Jun 1994 |
| State Tract 174 G-3-106975 | BKN Oil & Gas, Inc. only | Matagorda Bay, Ne.(miocene 1300) | Matagorda | 1 | 0 | 461 | by Jan 1993 – Jun 1994 |
| State Tract 308 G-3-106254 | Eltex Energy Group, Inc. only | Oyster Lake, W. (2790) | Matagorda | 1 | 0 | 0 | — |