COUNTIES · TEXAS GULF COAST · DISTRICT 04 · CODE 505
Zapata County, Texas
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.
6,890 drilling permits have been issued in Zapata County since 1977.
6,890 permits on file since 1977 · last issued Sep 17, 2025
Email me new permitsAlso: 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
- 377
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 9, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 0 · prior 12 30(-100%)
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 | — | 2,202 |
| Merit Energy Company | — | 403 |
| Synthetic Energy Corporation | — | 231 |
| Sue-Ann Operating L.C. | — | 230 |
| Mountain V Texas LLC | — | 142 |
| Varas Energy Operating Company | — | 134 |
| Energy 2000 Inc. | — | 130 |
| Thrash Oil & Gas Co. | — | 109 |
| Paleo Oil Company LLC | — | 107 |
| Conocophillips Company | — | 103 |
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 Jackson is reported in 56 wells, median top 370 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 →
USGS catalog, Texas
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 |
Questions about Zapata County
How many drilling permits were issued in Zapata County in the last 12 months?
0 permits were issued in Zapata County in the last 12 months, down 100% from 30 in the 12 months before. The most recent was issued Sep 17, 2025. 6,890 are on file since 1977.
Every Zapata County permit →Which operator has the most wells in Zapata County?
No operator has filed a drilling permit in Zapata County in the last 12 months. By wells on file, the largest is Hilcorp Energy Company, with 2,202, followed by Merit Energy Company (403) and Synthetic Energy Corporation (231).
Operators in Zapata County →How many oil and gas wells are in Zapata County?
7,034 wells are on file in Zapata County, including 2,686 active, 2,716 plugged, and 2 permitted and not yet drilled. 26 are horizontal. The active wells are under 52 operators.
Every well in Zapata County →How much oil and gas does Zapata County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Zapata County is listed with its reported production on the county's Leases tab.
Leases in Zapata County →How much water is injected in Zapata County?
884,821 barrels of water were injected in Zapata County in the 12 months through June 2025, reported on form H-10. 22 of the county's 330 disposal and injection permits are active.
Disposal and injection in Zapata County →What formations are drilled in Zapata County?
Completion filings for wells in Zapata County report tops for 13 formations in at least ten wells each. The most reported are the Wilcox (2,118 wells, median top 6,375 ft), the Queen City (1,290 wells, median top 2,750 ft), and the Wills Point (876 wells, median top 10,574 ft).
Formations in Zapata County →What basin is Zapata County in?
Petrora lists Zapata County in the Texas Gulf Coast. It is in the Railroad Commission's District 04.
The Texas Gulf Coast →Have there been earthquakes in Zapata County?
No earthquakes of magnitude 2 or more were located in the area of Zapata County's permitted wells in the last 2 years.
Earthquakes in Zapata County →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.