COUNTIES · TEXAS GULF COAST · DISTRICT 04 · CODE 505
Zapata County
Zapata County has had no new drilling permits in the past 90 days; the most recent permit on record was issued September 17, 2025.
The county has 22 active disposal and injection permits, with 885K barrels injected in the 12 months reported through June 2025.
8,085 drilling permits have been issued in Zapata County since 1977.
8,085 permits on file since 1977 · last issued Sep 17, 2025
Watch Zapata CountyAlso: every Zapata County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 90d
- —
- vs prior 90d (0)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 383
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 58 MONTHS · BY ISSUE DATE
Last 12 months 43 · prior 12 20(+115%)
Operators by well inventory
No permits in the last year; ranked by wells on the RRC wellbore file instead.
| Operator | Permits | Wells |
|---|---|---|
| Hilcorp Energy Company | — | 2,027 |
| Merit Energy Company | — | 342 |
| Synthetic Energy Corporation | — | 231 |
| Sue-Ann Operating L.C. | — | 217 |
| Mountain V Texas LLC | — | 136 |
| Energy 2000 Inc. | — | 129 |
| Thrash Oil & Gas Co. | — | 109 |
| Varas Energy Operating Company | — | 105 |
| Conocophillips Company | — | 101 |
| Paleo Oil Company LLC | — | 99 |
New entrants, last 12 months
Operators whose first permit in Zapata County came in the last year. None.
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Zapata County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
In Zapata County the Wilcox is reported in 2,118 wells, median top 6,375 ft, highlighted below. Back to the formation →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Wilcox | 2,118 | 10 | 6,375 | 4,050–10,171 |
| Queen City | 1,290 | 2 | 2,750 | 1,710–4,501 |
| Wills Point | 876 | 0 | 10,574 | 9,076–13,068 |
| Carrizo | 187 | 1 | 4,865 | 3,670–5,882 |
| Reklaw | 131 | 0 | 4,380 | 3,540–5,872 |
| Yegua | 128 | 2 | 1,770 | 700–2,836 |
| Cook Mountain | 76 | 2 | 2,900 | 1,678–3,788 |
| Midway | 67 | 0 | 10,215 | 8,240–11,270 |
| Sparta | 57 | 0 | 2,750 | 1,334–4,675 |
| Jackson | 56 | 2 | 370 | 140–1,940 |
| Miocene (undifferentiated) | 35 | 2 | 2,000 | 1,875–2,000 |
| Queen | 17 | 0 | 3,650 | 3,078–4,510 |
| Navarro | 11 | 0 | 9,704 | 9,296–11,670 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 22
- active UIC permits of 330
- 116K
- permitted bbl/day, active
- 885K
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Zapata County →
Permitted volume is a ceiling, not throughput. How to read it →
TexNet catalog via USGS
Seismicity, last 2 years
- 0
- M2+ events in the area
- —
- largest
Monthly counts, magnitudes, and every recent event in the area →
Events are not tagged with a county; this counts M2+ events inside the bounding box of the county’s located permits, padded 0.1°. About TexNet →
Latest permits
NEWEST FIRST BY ISSUE DATE
| Permit | Seen | Issued | Operator | Lease / well | Depth | API |
|---|---|---|---|---|---|---|
| 910364 | Sep 17, 2025 | Sep 17, 2025 | Hilcorp Energy Company | Bustamante Gas Unit 1 #10 | 11,700 | 50535415 |
| 910365 | Sep 12, 2025 | Sep 12, 2025 | Hilcorp Energy Company | Haynes #34 | 14,381 | 50535786 |
| 909959 | Aug 26, 2025 | Aug 26, 2025 | Texas Operating Partners LLC | Rise Singer #1 | 9,500 | 50536666 |
| 909831 | Aug 13, 2025 | Aug 13, 2025 | Eagle 5 Energy Services LLC | STX-CS #C 2P | 300 | 50536665 |
| 909830 | Aug 13, 2025 | Aug 13, 2025 | Eagle 5 Energy Services LLC | STX-CS #C 3P | 300 | 50536664 |
| 909829 | Aug 13, 2025 | Aug 13, 2025 | Eagle 5 Energy Services LLC | STX-CS #C 4P | 300 | 50536663 |
| 909828 | Aug 13, 2025 | Aug 13, 2025 | Eagle 5 Energy Services LLC | STX-CS #F 1P | 300 | 50536662 |
| 909827 | Aug 13, 2025 | Aug 13, 2025 | Eagle 5 Energy Services LLC | STX-CS #F 2P | 300 | 50536661 |
| 909648 | Aug 4, 2025 | Aug 4, 2025 | Eagle 5 Energy Services LLC | STX-CS #G 1I | 300 | 50536660 |
| 909647 | Aug 4, 2025 | Aug 4, 2025 | Eagle 5 Energy Services LLC | STX-CS #C 1I | 300 | 50536659 |
About this data
Drilling permits from the RRC OGA049M master and daily daf420 files, rebuilt nightly into per-county figures; windows are on the date issued. Disposal from UIC permits and H-10 reports at the last settled month; earthquakes from the TexNet catalog inside the county's located-permit footprint.
Developers: this page as JSON is GET /v1/data/counties/tx/zapata?days=90, documented in the API reference.