Starr County Drilling Permits
140 permits from the Texas Railroad Commission
| Operator | Lease | Type | Status | Filed | API # |
|---|---|---|---|---|---|
| Triad O&G, LLC | MONTALVO, N. R. | W-1 | Approved | Mar 24, 2026 | 42-427-0914356 |
| Ilex Energy Corporation | BROCK | W-1 | Approved | Mar 5, 2026 | 42-427-0913943 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'A' | W-1 | Approved | Feb 13, 2026 | 42-427-0913510 |
| Mueller Exploration, Inc. | ALBERTO ALANIZ | W-1 | Approved | Dec 29, 2025 | 42-427-0912483 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Oct 15, 2025 | 42-427-0911185 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Oct 15, 2025 | 42-427-0911186 |
| Mueller Exploration, Inc. | ALBERTO ALANIZ | W-1 | Approved | Sep 1, 2025 | 42-427-0910180 |
| Triad O&G, LLC | MONTALVO, N. R. | W-1 | Approved | Mar 3, 2025 | 42-427-0906366 |
| Triad O&G, LLC | MONTALVO, N. R. | W-1 | Approved | Feb 27, 2025 | 42-427-0906294 |
| Merit Energy Company | BENTSEN BROS. - STATE | W-1 | Approved | Dec 17, 2024 | 42-427-0904745 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Aug 14, 2024 | 42-427-0902050 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Aug 6, 2024 | 42-427-0901825 |
| Southern Tejas Asset Group LLC | R. GARCIA UNIT | W-1 | Approved | Jul 26, 2024 | 42-427-0901637 |
| Triad O&G, LLC | MONTALVO, N. R. | W-1 | Approved | Jul 15, 2024 | 42-427-0897026 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'A' | W-1 | Approved | Jul 8, 2024 | 42-427-0901123 |
| Mortimer Production Company | DORCHESTER MINERALS | W-1 | Approved | Jun 11, 2024 | 42-427-0900374 |
| Royal Production Company, Inc. | SLICK ESTATE | W-1 | Approved | Jun 4, 2024 | 42-427-0900202 |
| Osborn,w.b. Oil & Gas Operations | BLOCK, E. HEIRS 'B' | W-1 | Approved | May 16, 2024 | 42-427-0899782 |
| Royal Production Company, Inc. | SLICK | W-1 | Approved | May 2, 2024 | 42-427-0899417 |
| Dahco Operating, LLC | CAMERON-STATE | W-1 | Approved | Jan 16, 2024 | 42-427-0896543 |
| Dahco Operating, LLC | CAMERON-STATE | W-1 | Approved | Jan 16, 2024 | 42-427-0896560 |
| Mortimer Production Company | DORCHESTER MINERALS | W-1 | Approved | Oct 24, 2023 | 42-427-0894763 |
| Enterprise Products Operatingllc | ZP 50 | W-1 | Approved | Oct 4, 2023 | 42-427-0894308 |
| Fletcher Operating, LLC | GARCIA-GONZALES GAS UNIT | W-1 | Approved | Sep 23, 2023 | 42-427-0893961 |
| Merit Energy Company | YZAGUIRRE | W-1 | Approved | Mar 15, 2023 | 42-427-0889065 |
| Merit Energy Company | SLICK 541 | W-1 | Approved | Feb 17, 2023 | 42-427-0888320 |
| Mortimer Production Company | PLAINS CAPITAL | W-1 | Approved | Jan 17, 2023 | 42-427-0887363 |
| Texas Independent Explor LTD. | MAYFAIR LA BRISA | W-1 | Approved | Dec 27, 2022 | 42-427-0886861 |
| Shor Operating LLC | YTURRIA-GARCIA | W-1 | Approved | Sep 29, 2022 | 42-427-0884431 |
| Overton Park Oil & Gas LP | MCGILL BROS. | W-1 | Approved | Aug 29, 2022 | 42-427-0883504 |
| Urban Oil & Gas Group, LLC | SLICK STATE | W-1 | Approved | Aug 9, 2022 | 42-427-0882887 |
| Royal Production Company, Inc. | SLICK | W-1 | Approved | Aug 3, 2022 | 42-427-0882743 |
| Royal Production Company, Inc. | SLICK | W-1 | Approved | Aug 3, 2022 | 42-427-0882750 |
| Royal Production Company, Inc. | SLICK ESTATE | W-1 | Approved | Jul 11, 2022 | 42-427-0881985 |
| Overton Park Oil & Gas LP | MCGILL BROS. | W-1 | Approved | Jul 11, 2022 | 42-427-0881970 |
| Mortimer Production Company | PLAINS CAPITAL | W-1 | Approved | Jul 6, 2022 | 42-427-0881871 |
| Mortimer Production Company | GUTIERREZ UNIT 3 | W-1 | Approved | May 24, 2022 | 42-427-0880508 |
| Killam Oil Co., LTD. | HALL, J. F. STATE -A- | W-1 | Approved | May 12, 2022 | 42-427-0880104 |
| Killam Oil Co., LTD. | HALL, J. F. STATE -A- | W-1 | Approved | May 4, 2022 | 42-427-0879783 |
| Tam2 Squared Operating, LLC | ELLIOT | W-1 | Approved | May 2, 2022 | 42-427-0879687 |
| Killam Oil Co., LTD. | OLIVARES, A. | W-1 | Approved | Apr 28, 2022 | 42-427-0879589 |
| Merit Energy Company | SLICK, T. B. ESTATE | W-1 | Approved | Apr 12, 2022 | 42-427-0879055 |
| Merit Energy Company | COATES 553 | W-1 | Approved | Apr 5, 2022 | 42-427-0878831 |
| Southern Tejas Asset Group LLC | BROCK, J. D. -A- | W-1 | Approved | Feb 24, 2022 | 42-427-0877424 |
| Mortimer Production Company | GUTIERREZ | W-1 | Approved | Sep 2, 2021 | 42-427-0872483 |
| Killam Oil Co., LTD. | HALL, J. F. STATE -A- | W-1 | Approved | Aug 19, 2021 | 42-427-0872188 |
| Mortimer Production Company | PLAINS CAPITAL | W-1 | Approved | Aug 12, 2021 | 42-427-0871941 |
| Killam Oil Co., LTD. | HALL, C. M. | W-1 | Approved | Jun 25, 2021 | 42-427-0870809 |
| Sage Geosystems LLC | JFB HEARD ESTATE | W-1 | Approved | Jun 2, 2021 | 42-427-0870218 |
| Killam Oil Co., LTD. | MONTALVO 'B' (NORTH) UNIT | W-1 | Approved | Jun 2, 2021 | 42-427-0870208 |
| Black Gold Petroleum, LLC | ROSENDA GARCIA | W-1 | Approved | May 17, 2021 | 42-427-0869911 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | May 5, 2021 | 42-427-0869623 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Apr 7, 2021 | 42-427-0868987 |
| Merit Energy Company | GARZA, A. M. STATE | W-1 | Approved | Mar 26, 2021 | 42-427-0868691 |
| Merit Energy Company | GARZA, A. M. -STATE | W-1 | Approved | Mar 26, 2021 | 42-427-0868683 |
| Merit Energy Company | SLICK, T. B. ESTATE | W-1 | Approved | Jan 28, 2021 | 42-427-0867361 |
| Howitzer Operating, LLC | UNA DE GATO | W-1 | Approved | Jan 7, 2021 | 42-427-0866914 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Jan 5, 2021 | 42-427-0866864 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Dec 4, 2020 | 42-427-0866361 |
| Dahco Operating, LLC | CAMERON-STATE | W-1 | Approved | Nov 25, 2020 | 42-427-0866223 |
| Hilcorp Energy Company | SLICK, T.B. ESTATE 'A' 527 | W-1 | Approved | Oct 5, 2020 | 42-427-0819364 |
| Hilcorp Energy Company | MARTINEZ B | W-1 | Approved | Jun 4, 2020 | 42-427-0863816 |
| Hilcorp Energy Company | MARTINEZ B | W-1 | Approved | Jun 4, 2020 | 42-427-0863818 |
| Strata Operating, Inc. | SALAZAR UNIT | W-1 | Approved | Apr 9, 2020 | 42-427-0863286 |
| Killam Oil Co., LTD. | GARZA | W-1 | Approved | Feb 21, 2020 | 42-427-0862170 |
| Killam Oil Co., LTD. | LAUREL, D. | W-1 | Approved | Feb 14, 2020 | 42-427-0861938 |
| Urban Oil & Gas Group, LLC | SLICK STATE 'B' | W-1 | Approved | Jan 14, 2020 | 42-427-0860932 |
| Killam Oil Co., LTD. | J. M. DE GARZA 'C' | W-1 | Approved | Jan 8, 2020 | 42-427-0860687 |
| Killam Oil Co., LTD. | I. V. MONTALVO 'C' | W-1 | Approved | Jan 2, 2020 | 42-427-0860546 |
| Wagner Oil Company | DE FLORES, M. S. | W-1 | Approved | Dec 18, 2019 | 42-427-0860191 |
| Merit Energy Company | BENTSEN TRACT I | W-1 | Approved | Dec 2, 2019 | 42-427-0859545 |
| Hilcorp Energy Company | MARTINEZ -B- | W-1 | Approved | Nov 4, 2019 | 42-427-0858721 |
| Killam Oil Co., LTD. | I. V. MONTALVO 'C' | W-1 | Approved | Sep 6, 2019 | 42-427-0856865 |
| Merit Energy Company | GUERRA-USA GAS UNIT 'C' | W-1 | Approved | Aug 26, 2019 | 42-427-0856588 |
| L & B Oil And Gas Equipment, LLC | EDGERTON | W-1 | Approved | Jul 29, 2019 | 42-427-0855695 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Jun 14, 2019 | 42-427-0854227 |
| Smith Production Inc. | GARCIA, I. Y. | W-1 | Approved | Apr 23, 2019 | 42-427-0852405 |
| Smith Production Inc. | GARCIA L&L CO. | W-1 | Approved | Apr 11, 2019 | 42-427-0852030 |
| Killam Oil Co., LTD. | GARZA | W-1 | Approved | Apr 10, 2019 | 42-427-0852018 |
| Killam Oil Co., LTD. | SPEER, GEO. H. STATE -D- | W-1 | Approved | Apr 4, 2019 | 42-427-0851821 |
| Rincon Petroleum Corporation | MULHOLLAND | W-1 | Approved | Apr 2, 2019 | 42-427-0851700 |
| Killam Oil Co., LTD. | AMANDA MCKINNEY | W-1 | Approved | Mar 21, 2019 | 42-427-0851312 |
| Killam Oil Co., LTD. | N.R. MONTALVO | W-1 | Approved | Mar 15, 2019 | 42-427-0851088 |
| Black Gold Petroleum, LLC | GARCIA-GUERRA UNIT | W-1 | Approved | Jan 17, 2019 | 42-427-0848912 |
| White Oak Operating Company LLC | VALLE GRANDE | W-1 | Approved | Jan 15, 2019 | 42-427-0848781 |
| White Oak Operating Company LLC | HEARD | W-1 | Approved | Jan 15, 2019 | 42-427-0848770 |
| White Oak Operating Company LLC | CLEOPATRA | W-1 | Approved | Jan 15, 2019 | 42-427-0848779 |
| White Oak Operating Company LLC | ECHOLS | W-1 | Approved | Jan 14, 2019 | 42-427-0848724 |
| Black Gold Petroleum, LLC | NICASIO GUERRA | W-1 | Approved | Dec 19, 2018 | 42-427-0847988 |
| Killam Oil Co., LTD. | N.R. MONTALVO | W-1 | Approved | Nov 16, 2018 | 42-427-0846916 |
| Dewbre Petroleum Corporation | HEARD | W-1 | Approved | Nov 15, 2018 | 42-427-0846866 |
| Trap Rock Oil, LTD. | LA BRISA RANCH BELMONT | W-1 | Approved | Nov 12, 2018 | 42-427-0844904 |
| Killam Oil Co., LTD. | AMANDA MCKINNEY | W-1 | Approved | Nov 7, 2018 | 42-427-0844588 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Nov 1, 2018 | 42-427-0846404 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'A' | W-1 | Approved | Oct 10, 2018 | 42-427-0845590 |
| Metano Energy III, LP | SHEERIN UNIT | W-1 | Approved | Oct 1, 2018 | 42-427-0841160 |
| Merit Energy Company | USA 2 | W-1 | Approved | Sep 28, 2018 | 42-427-0845170 |
| Killam Oil Co., LTD. | M. SAENZ STATE | W-1 | Approved | Sep 10, 2018 | 42-427-0844526 |
| Metano Energy III, LP | VILLA | W-1 | Approved | Sep 4, 2018 | 42-427-0844264 |
| Killam Oil Co., LTD. | I.V. MONTALVO 'C' | W-1 | Approved | Aug 31, 2018 | 42-427-0844252 |