| Newberry Unit O-4-12113 | Whiting Oil and Gas Corporation only | Estes Cove (C-1) | Aransas | 1 | 58K | 278K | by Jan 1993 – Dec 1998 |
| State Tract 279 G-4-164696 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "C") | Aransas | 1 | 56.5K | 384K | Aug 1997 – Apr 2003 |
| State Tract 169 O-4-8884 | Petro-Guard Production,l.l.c. only | Nine Mile Point, West (P-1) | Aransas | 1 | 55.8K | 33.8K | by Jan 1993 – Oct 2000 |
| Tatton, V. H. O-4-9227 | Pennzoil Exploration & Prod. Co. only | Virginia (10,800) | Aransas | 3 | 55.4K | 254K | by Jan 1993 – Jul 1997 |
| St. Charles Co. G-4-282442 | Hilcorp Energy Company only | St. Charles (Frio Cons., Upper) | Aransas | 1 | 54.5K | 3.25M | Jun 2017 – Jun 2026 |
| Skipper, C.W. Unit O-4-12162 | Whiting Oil and Gas Corporation only | Estes Cove (7300) | Aransas | 1 | 54K | 174K | Feb 1993 – Apr 2000 |
| State Tract 96 G-4-204685 | Lamar Oil & Gas, Inc. only | Copano Bay, S. (FB-a, H,upper) | Aransas | 1 | 53.3K | 827K | Oct 2004 – Jan 2024 |
| State Tract 279 O-4-13154 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "C") | Aransas | 1 | 53.1K | 423K | May 2003 – Aug 2017 |
| Flinn, et al Unit O-4-13446 | Cabot Oil & Gas Corporation only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 51.5K | 494K | Jul 2007 – Oct 2011 |
| Tatton, V. H. G-4-152613 | Wagner Oil Company only | Virginia (Frio Cons.) | Aransas | 1 | 50.1K | 539K | Dec 1994 – Aug 2026 |
| Tatton, V. H. O-4-6428 | Pennzoil Exploration & Prod. Co. only | Virginia (10,400) | Aransas | 4 | 50K | 118K | by Jan 1993 – Jul 1997 |
| Gibson & Sien G-4-233418 | Millennium Exploration Co. LLC only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 49.6K | 697K | Oct 2007 – Feb 2024 |
| Nine Mile Pt. Fld. Consl. Unit G-4-151428 | Lamar Oil & Gas, Inc. only | Nine Mile Point (Consol. Fld.) | Aransas | 1 | 46.4K | 994K | Sep 1994 – Oct 2024 |
| State Tract 81-82 Unit G-4-221259 | Lamar Oil & Gas, Inc. only | Copano Bay, S. (Frio TX Miss) | Aransas | 1 | 45.4K | 2.51M | Apr 2006 – May 2025 |
| Flinn, et al Unit G-4-267429 | Millennium Exploration Co. LLC only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 44.8K | 1.16M | Feb 2012 – Sep 2023 |
| Grant "A" G-4-189394 | Cabot Oil & Gas Corporation only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 41.5K | 863K | May 2002 – Jan 2006 |
| Sultenfuss, H. A. O-4-11603 | Tidewater Minerals Corporation only | Estes Cove (E-1, Fault Block B) | Aransas | 1 | 41.3K | 97 | by Jan 1993 – Aug 2013 |
| State Tract 84 O-4-9247 | Lamar Oil & Gas, Inc. only | Goose Island (C SD, Lo.) | Aransas | 2 | 40.9K | 46.1K | by Jan 1993 – Feb 2017 |
| Sexton-Mullan Unit O-4-12076 | Whiting Oil and Gas Corporation only | Estes Cove (E-3) | Aransas | 1 | 39.9K | 57.2K | by Jan 1993 – Jun 2010 |
| State Tract 279 O-4-12048 | North Central Oil Corp. only | Conn Brown Harbor (Frio "C") | Aransas | 1 | 37.5K | 916K | by Jan 1993 – Apr 1997 |
| Grant "A" G-4-186062 | Walter Oil & Gas Corporation only | McCampbell (Frio P, Upper) | Aransas | 1 | 37.3K | 949K | Mar 2001 – Feb 2003 |
| State Tract 125 G-4-198587 | Lamar Oil & Gas, Inc. only | Bartell Pass (Frio M) | Aransas | 1 | 37.3K | 1.6M | Sep 2003 – Jun 2024 |
| St. Charles Co. G-4-142096 | Conoco Inc. only | St. Charles ( X) | Aransas | 1 | 37.2K | 1.43M | by Jan 1993 – Jun 1995 |
| Cavasso Creek-A- G-4-226035 | T-C Oil Company, LLC only | Cavasso Creek (Frio 8300) | Aransas | 1 | 36.5K | 1.66M | Mar 2007 – Jul 2011 |
| St. Charles Co. O-4-13798 | Hilcorp Energy Company only | St. Charles (B-1) | Aransas | 2 | 36.2K | 62.6K | Jul 2013 – Jul 2022 |
| St. Charles Co. G-4-280545 | Hilcorp Energy Company only | St. Charles (Frio Cons., Lower) | Aransas | 1 | 35.7K | 1.58M | May 2016 – Apr 2025 |
| Nine Mile Pt.fld.consl. Unit G-4-160285 | Lamar Oil & Gas, Inc. only | Nine Mile Point (Consol. Fld.) | Aransas | 1 | 34.2K | 4.6M | Jun 1996 – Sep 2023 |
| Tatton, V. H. G-4-151775 | Wagner Oil Company only | Virginia (Frio Cons.) | Aransas | 1 | 34.2K | 340K | Nov 1994 – Apr 2011 |
| McCampbell, W. G., Jr. et Al G-4-48439 | XTO Energy Inc. only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 33.7K | 789K | by Jan 1993 – Mar 2010 |
| Conn Brown-State B - G Sand Unit G-4-256497 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "D") | Aransas | 1 | 33.4K | 563K | May 2010 – Aug 2017 |
| Barber, R.R. O-4-9472 | Tare Resources, LLC only | Aransas Pass, East (7930) | Aransas | 1 | 32.5K | 23 | Mar 1993 – Aug 2026 |
| Conn-Brown-State-G Sand Unit O-4-13258 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "E" FB-B | Aransas | 1 | 32.1K | 986K | Sep 2004 – Apr 2010 |
| Bailey, Travis G-4-162085 | Pogo Producing Company LLC only | Rockport, West (-K-2) | Aransas | 1 | 31.2K | 1.25M | Feb 1997 – Oct 2009 |
| St Charles Co. G-4-116714 | Hilcorp Energy Company only | St. Charles (Frio Cons., Lower) | Aransas | 1 | 30.3K | 1.45M | by Jan 1993 – Sep 2025 |
| St. Charles Co. G-4-149503 | Hilcorp Energy Company only | St. Charles (Frio Cons., Upper) | Aransas | 1 | 29.6K | 2.4M | Apr 1994 – Aug 2016 |
| Spencer-Kent-Crane O-4-849 | Omega Energy Corp. only | Fulton Beach (a-4 Miocene) | Aransas | 3 | 29.2K | 11K | by Jan 1993 – Aug 2008 |
| State Tract 62 G-4-284931 | Lamar Oil & Gas, Inc. only | Copano Bay, S. (FB-G, 03) | Aransas | 1 | 28.1K | 859K | Jul 2017 – May 2025 |
| Gibson & Sien G-4-237048 | Millennium Exploration Co. LLC only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 27.3K | 259K | Jan 2008 – Nov 2023 |
| Cavasso Creek -A- O-4-13779 | T-C Oil Company, LLC only | Cavasso Creek (8000) | Aransas | 1 | 25.9K | 47K | Dec 2011 – Jan 2013 |
| Nine Mile Pt. Fld. Consl Unit G-4-160366 | Lamar Oil & Gas, Inc. only | Nine Mile Point (Consol. Fld.) | Aransas | 1 | 25.4K | 3.67M | May 1996 – Sep 2024 |
| State Tract 44 Unit G-2-256493 | Magnum Producing, LP only | Zoller (11,000) | Aransas | 1 | 24.8K | 72.2K | Jan 2010 – Mar 2012 |
| St. Charles Co. G-4-298938 | Hilcorp Energy Company only | St. Charles (Frio Cons., Lower) | Aransas | 1 | 23.7K | 1.88M | Jul 2024 – Jul 2026 |
| Cavasso Creek -A- G-4-224972 | T-C Oil Company, LLC only | Cavasso Creek (8600) | Aransas | 1 | 23.6K | 625K | Jan 2007 – Jul 2011 |
| Nine Mile Point Field Cons. G-4-228871 | Lamar Oil & Gas, Inc. only | Nine Mile Point (Consol. Fld.) | Aransas | 1 | 23.4K | 910K | May 2007 – Jun 2024 |
| Davis G-4-188865 | Millennium Exploration Co. LLC only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 23.3K | 1.27M | Apr 2002 – Jan 2023 |
| City of Aransas Pass O-4-11553 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "D") | Aransas | 2 | 23.3K | 100K | by Jan 1993 – Sep 1995 |
| State Tract 62 G-4-245832 | Lamar Oil & Gas, Inc. only | Copano Bay, S. (TX Miss C) | Aransas | 1 | 22.9K | 801K | Jul 2008 – Feb 2015 |
| Houston Endowment Inc. O-4-13848 | White Oak Operating Company LLC only | Copano Bay, S. (FB-a Cons. G-L) | Aransas | 1 | 22.5K | 57.7K | Aug 2013 – Jun 2014 |
| State Tract 83 O-4-8748 | Hunt Oil Company only | Goose Island (C SD, Lo.) | Aransas | 3 | 22.5K | 27.9K | by Jan 1993 – Nov 1996 |
| State Tract 278 "A" G-4-149044 | Tema Oil and Gas Company only | Conn Brown Barbor (Frio "D" FB-C | Aransas | 1 | 21.9K | 1.17M | Feb 1994 – Mar 2005 |