COUNTIES · TEXAS GULF COAST · DISTRICT 04 · CODE 007
Aransas County, Texas
Aransas County has had no new drilling permits in the past 90 days; the most recent permit on record was issued April 29, 2026.
Hilcorp Energy Company leads with 3 permits in the past 12 months, the only operator active in the county.
Median permitted depth over the past year is 11,000 ft (prior year: 12,000 ft); 0% of the past year's permits are horizontal.
The county has 6 active disposal and injection permits, with 205K barrels injected in the 12 months reported through June 2025.
668 drilling permits have been issued in Aransas County since 1977.
668 permits on file since 1977 · last issued Apr 29, 2026
Watch Aransas CountyAlso: every Aransas County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 180d
- -100%
- vs prior 180d (3)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 174
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 8, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 3 · prior 12 1(+200%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Hilcorp Energy Company | 3 | 22 |
New entrants, last 12 months
Operators whose first permit in Aransas County came in the last year. None.
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Aransas County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
| Formation | Wells | Permitted last 3 yrs | Median top, ft | P10–P90 |
|---|---|---|---|---|
| Frio | 98 | 2 | 7,622 | 6,422–9,806 |
| Miocene (undifferentiated) | 50 | 1 | 5,289 | 2,725–6,087 |
| Catahoula | 20 | 1 | 6,096 | 4,568–6,500 |
| Anahuac | 16 | 0 | 6,424 | 6,020–6,862 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 6
- active UIC permits of 29
- 18.5K
- permitted bbl/day, active
- 205K
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Aransas 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 |
|---|---|---|---|---|---|---|
| 914728 | Apr 29, 2026 | Apr 29, 2026 | Hilcorp Energy Company | State Tract 356 #2 | 11,000 | 00730939 |
| 914728Amendment | Apr 29, 2026 | Apr 29, 2026 | Hilcorp Energy Company | State Tract 356 #2 | 11,000 | 00730939 |
| 914727 | Apr 20, 2026 | Apr 20, 2026 | Hilcorp Energy Company | St Charles Co #122 | 11,000 | 00730938 |
| 914709 | Apr 17, 2026 | Apr 17, 2026 | Hilcorp Energy Company | St. Charles Co. #121 | 11,000 | 00730937 |
| 908805 | Jul 2, 2025 | Jul 2, 2025 | Hilcorp Energy Company | St Charles Co. #71 | 12,000 | 00730732 |
| 900093 | Jun 3, 2024 | Jun 3, 2024 | Hilcorp Energy Company | St. Charles Co #120 | 11,000 | 00730935 |
| 899950 | May 30, 2024 | May 30, 2024 | Hilcorp Energy Company | St. Charles Co. #119 | 11,000 | 00730934 |
| 898620 | Apr 12, 2024 | Apr 12, 2024 | Hilcorp Energy Company | St. Charles Co #1 | 8,311 | 00700045 |
| 879611 | May 9, 2022 | May 9, 2022 | Hilcorp Energy Company | St. Charles Co. #116 | 12,500 | 00730933 |
| 879609 | May 5, 2022 | May 5, 2022 | Hilcorp Energy Company | St. Charles Co #117 | 13,500 | 00730932 |
Questions about Aransas County
How many drilling permits were issued in Aransas County in the last 12 months?
3 permits were issued in Aransas County in the last 12 months, up 200% from 1 in the 12 months before. 0% were for horizontal wells. The most recent was issued Apr 29, 2026. 668 are on file since 1977.
Every Aransas County permit →Who is the most active operator in Aransas County?
By drilling permits filed in the last 12 months, Hilcorp Energy Company is the most active operator in Aransas County, with 3 of 3. 0 operators filed permits here in the last 90 days.
Operators in Aransas County →How many oil and gas wells are in Aransas County?
896 wells are on file in Aransas County, including 45 active and 420 plugged. 1 is horizontal. The active wells are under 8 operators.
Every well in Aransas County →How much oil and gas does Aransas County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Aransas County is listed with its reported production on the county's Leases tab.
Leases in Aransas County →How much water is injected in Aransas County?
204,887 barrels of water were injected in Aransas County in the 12 months through June 2025, reported on form H-10. 6 of the county's 29 disposal and injection permits are active.
Disposal and injection in Aransas County →What formations are drilled in Aransas County?
Completion filings for wells in Aransas County report tops for 4 formations in at least ten wells each. The most reported are the Frio (98 wells, median top 7,622 ft), the Miocene (undifferentiated) (50 wells, median top 5,289 ft), and the Catahoula (20 wells, median top 6,096 ft).
Formations in Aransas County →What basin is Aransas County in?
Petrora lists Aransas County in the Texas Gulf Coast. It is in the Railroad Commission's District 04.
The Texas Gulf Coast →Have there been earthquakes in Aransas County?
No earthquakes of magnitude 2 or more were located in the area of Aransas County's permitted wells in the last 2 years.
Earthquakes in Aransas 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/aransas?days=180, documented in the API reference.