Texas Mineral Radar → counties → Starr
Starr County, Texas
A full read of activity around your Starr County tract
Recent permits, completions, active operators, horizontal mix, nearby producing wellbores, production on matched leases, and the Rule 37/38 exceptions on record through 2024 — in one report, with sources.
Weighing an offer to sell your Starr County minerals?
Buyers make unsolicited offers on mineral rights constantly, and the activity on record here is the context that tells you whether an offer is well-timed. Starr County has 3 new drilling permits in the last year, 776 producing wells, 0 horizontal permits and 9 active operators on record. New drilling — especially horizontal wells that can drain a tract from a mile away — is what moves both a mineral tract's value and your leverage in a sale. This page shows that activity free; watching the county tells you the moment it changes, so an offer never lands before you know what's driving it.
This is public Railroad Commission activity — the same data a mineral buyer looks at, in your hands. It is not an appraisal, and not a record of who owns the minerals.
Recent drilling permits in Starr County
| Filed | Operator | Lease | Type | Flags |
|---|---|---|---|---|
| 2026-04-21 | PETROVYBE OPCO LLC | RICHMOND | Drill | |
| 2026-03-24 | TRIAD O&G, LLC | MONTALVO, N. R. | Recompletion | |
| 2026-03-05 | ILEX ENERGY CORPORATION | BROCK | Drill | |
| 2021-01-07 | HOWITZER OPERATING, LLC | UNA DE GATO | Drill | |
| 2020-12-04 | KILLAM OIL CO., LTD. | I.V. MONTALVO 'C' | Recompletion | |
| 2020-11-25 | DAHCO OPERATING, LLC | CAMERON-STATE | Drill | |
| 2019-12-18 | WAGNER OIL COMPANY | DE FLORES, M. S. | Recompletion | |
| 2019-12-02 | MERIT ENERGY COMPANY | BENTSEN TRACT I | Drill | Rule 37 |
| 2018-12-19 | BLACK GOLD PETROLEUM, LLC | NICASIO GUERRA | Re-enter | |
| 2017-12-11 | KILLAM OIL CO., LTD. | M. SAENZ STATE | Recompletion | |
| 2017-12-07 | KILLAM OIL CO., LTD. | MONTALVO 'B' UNIT | Recompletion | |
| 2017-12-01 | KILLAM OIL CO., LTD. | GEO. H. SPEER | Drill |
Who is drilling in Starr County
9 companies hold drilling permits in Starr County, Texas. These are the ones on record, by permits filed. Open a company to see every county it drills in and every permit it has filed.
| Operator | Permits here | Horizontal | Last filed | Wells on record |
|---|---|---|---|---|
| KILLAM OIL CO., LTD. | 4 | 0 | 2020-12-04 | 1,110 |
| PETROVYBE OPCO LLC | 1 | 0 | 2026-04-21 | — |
| TRIAD O&G, LLC | 1 | 0 | 2026-03-24 | — |
| ILEX ENERGY CORPORATION | 1 | 0 | 2026-03-05 | — |
| HOWITZER OPERATING, LLC | 1 | 0 | 2021-01-07 | 3 |
| DAHCO OPERATING, LLC | 1 | 0 | 2020-11-25 | — |
| WAGNER OIL COMPANY | 1 | 0 | 2019-12-18 | 885 |
| MERIT ENERGY COMPANY | 1 | 0 | 2019-12-02 | 2,695 |
| BLACK GOLD PETROLEUM, LLC | 1 | 0 | 2018-12-19 | 1 |