| O'Conner, Mary Ellen O-2-6698 | Mary Ellen Oconnor (FQ-30) | Refugio | 3 | 174K | 391K | Jan 1993 – Jul 2026 |
| EL Oso Cattle Company O-2-5199 | Woodsboro, South (4200) | Refugio | 12 | 111K | 145K | Jan 1993 – Jul 2026 |
| O'Conner, Mary Ellen O-2-5612 | Mary Ellen Oconnor (D-1) | Refugio | 12 | 86.9K | 486K | Jan 1993 – Jul 2026 |
| Oconnor, Mary Ellen O-2-5253 | Mary Ellen Oconnor (Stray A) | Refugio | 6 | 57.1K | 261K | Jan 1993 – Jul 2026 |
| Oconnor, Mary Ellen O-2-5502 | Woodsboro, South (4200) | Refugio | 9 | 44.4K | 123K | Jan 1993 – Jul 2026 |
| O'Conner, Mary Ellen O-2-5905 | Mary Ellen Oconnor (FQ-25) | Refugio | 2 | 32.2K | 80K | Jan 1993 – Jul 2026 |
| Oconnor, Mary Ellen O-2-5404 | Mary Ellen Oconnor (5000) | Refugio | 2 | 31.6K | 99.2K | Jan 1993 – Jul 2026 |
| Oconnor, Mary Ellen O-2-2708 | Mary Ellen Oconnor (FS-96) | Refugio | 6 | 30.8K | 102K | Jan 1993 – Jul 2026 |
| Oconnor, Mary Ellen O-2-3126 | Mary Ellen Oconnor (FQ- 9) | Refugio | 3 | 19.1K | 45.2K | Jan 1993 – Jul 2026 |
| O'Connor, Mary Ellen O-2-5592 | Mary Ellen O'Connor (FS 97) | Refugio | 1 | 10.9K | 83.3K | Jan 1993 – Jul 2026 |
| Flinn Heirs O-4-12784 | Taft, South (6820) | San Patricio | 1 | 6.42K | 2.43K | May 1998 – Jul 2026 |
| Oconnor, Mary Ellen O-2-5588 | Mary Ellen Oconnor (8200) | Refugio | 1 | 6.16K | 79.7K | Jan 1993 – Jul 2026 |
| EL Oso Cattle Company O-2-5415 | Mary Ellen Oconnor (Stray A) | Refugio | 1 | 4.75K | 34.9K | Jan 1993 – Jul 2026 |
| Dodd, Leona O-4-10858 | Captain Lucey (5150 Jose) | Jim Wells | 1 | 4.41K | 2.07K | Jan 1993 – Jul 2026 |
| O'Conner, Mary Ellen O-2-7277 | Mary Ellen Oconnor (Stray 5400) | Refugio | 1 | 104 | 2.82K | Jan 1993 – Jul 2026 |
| Yzaguirre, J G-4-167250 | Wildcat | Zapata | 1 | 0 | 1.46K | Jun 1995 – Jul 2026 |
| Dodd, Leona Estate G-4-9744 | Captain Lucey (4000) | — | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Yzaguirre J. G-4-155369 | Bob West (L-27, 28, 29) | Zapata | 1 | 0 | 460K | Dec 1994 – Jul 2026 |
| Yzaguirre J. G-4-155371 | Bob West (L-30, 31, 32, 33) | Zapata | 1 | 0 | 0 | Apr 1995 – Jul 2026 |
| Yzaguirre, J. G-4-167088 | Wildcat | Zapata | 1 | 0 | 13K | Mar 1996 – Jul 2026 |
| Yzaguirre, J G-4-167131 | Bob West (L-7) | Zapata | 1 | 0 | 3.02K | Jun 1995 – Jul 2026 |
| EL Oso Cattle Company O-2-5517 | Mary Ellen Oconnor (5000) | Refugio | 2 | 0 | 0 | Jan 1993 – Jul 2026 |
| EL Oso Cattle Co. O-2-5560 | Mary Ellen Oconnor (FQ-30) | Refugio | 2 | 0 | 0 | Jan 1993 – Jul 2026 |
| O'Connor, Mary Ellen O-2-7433 | Wildcat | Refugio | 2 | 0 | 0 | Jan 1993 – Jul 2026 |
| Oconnor, M. E. G-2-45119 | Mary Ellen Oconnor (FS-1) | Refugio | 1 | 0 | 34.8K | Jan 1993 – Oct 2022 |
| Oconnor, Mary Ellen G-2-79074 | Mary Ellen Oconnor (D-1) | Refugio | 1 | 0 | 7.07K | Jan 1993 – Aug 2022 |
| Oconnor, Mary Ellen G-2-49774 | Mary Ellen Oconnor (FQ-25) | Refugio | 1 | 0 | 6.26K | Jan 1993 – May 2022 |
| Oconnor, Mary Ellen G-2-130673 | Mary Ellen Oconnor (5000) | Refugio | 1 | 0 | 7.58K | Jan 1993 – May 2022 |
| EL Oso Cattle Company G-2-154721 | Mary Ellen Oconnor (3100) | Refugio | 1 | 0 | 4.6K | Jun 1995 – Feb 2022 |
| Scull G-4-162303 | Odem, East (3200) | San Patricio | 1 | 0 | 817K | Nov 1996 – Nov 2020 |
| Whatley G-4-125366 | Odem (3425) | San Patricio | 1 | 0 | 138K | Jan 1993 – Oct 2020 |
| Ramirez SWD G-4-152506 | Bob West (L-12, 13, 14, 15) | Zapata | 1 | 0 | 0 | Dec 1994 – Mar 2020 |
| Dodd, Leona Estate G-4-147743 | Captain Lucey (3800) | Jim Wells | 1 | 0 | 175K | Jan 1994 – Dec 2019 |
| Dodd, Leona G-4-111547 | Captain Lucey (5440) | Jim Wells | 1 | 0 | 124K | Jan 1993 – Dec 2019 |
| Dodd, Leona Estate G-4-9751 | Captain Lucey (4100) | Jim Wells | 1 | 0 | 8.95K | Jan 1993 – Dec 2019 |
| Oconnor, Mary Ellen G-2-51007 | Mary Ellen Oconnor (Stray A) | Refugio | 1 | 0 | 88.5K | Jan 1993 – Apr 2009 |
| Garza G-2-157772 | Clegg (Wilcox 8800) | Live Oak | 1 | 0 | 948K | Mar 1994 – Feb 2009 |