COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 039
Brazoria County, Texas
Brazoria County permitting is running 0.7 permits a month over the trailing 90 days (2 total, down 85% on the prior quarter).
Denbury Onshore, LLC leads with 17 permits in the past 12 months, one of 5 operators active in the county.
2 operators filed a first Brazoria County permit in the past year.
Median permitted depth over the past year is 6,298 ft (prior year: 8,860 ft); 0% of the past year's permits are horizontal.
The county has 352 active disposal and injection permits, with 27.6M barrels injected in the 12 months reported through June 2025.
4,177 drilling permits have been issued in Brazoria County since 1977.
4,177 permits on file since 1977 · last issued Sep 22, 2026
Watch Brazoria CountyAlso: every Brazoria County well in the statewide list, searchable → · a year of permits on the map →
- 0
- permits issued, 30d
- -100%
- vs prior 30d (1)
- 0
- operators filing
- —
- horizontal
- —
- avg permitted depth, ft
- 687
- operators, all time
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 6, 2026 · WHY ISSUE AND SEEN DATES DIFFER
Permits issued by month
LAST 120 MONTHS · BY ISSUE DATE
Last 12 months 22 · prior 12 6(+267%)
Top operators, last 12 months
By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.
| Operator | Permits | Wells |
|---|---|---|
| Denbury Onshore, LLC | 17 | 802 |
| Chisos, Ltd. | 2 | 0 |
| HG Operating LLC | 1 | 40 |
| Cimarron Engineering, LLC | 1 | 4 |
| Zachry Exploration, LLC | 1 | 1 |
New entrants, last 12 months
Operators whose first permit in Brazoria County came in the last year. 2 in total.
- Chisos, Ltd.2 permitsAug 4, 2026 · active elsewhere first
- Zachry Exploration, LLC1 permitMar 20, 2026 · active elsewhere first
Formations in completed wells
RRC WELLBORE FILE · ≥10 WELLS
Tops reported on completion filings for wells in Brazoria County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 352
- active UIC permits of 993
- 8.71M
- permitted bbl/day, active
- 27.6M
- bbl injected, last 12 reported months
- Jun 2025
- reported through
Every active well, operator, and daily reporter in Brazoria 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 |
|---|---|---|---|---|---|---|
| 917877 | Sep 24, 2026 | Sep 22, 2026 | HG Operating LLC | Bennett Estate #27 | 2,000 | 03933397 |
| 918321 | Sep 6, 2026 | Sep 4, 2026 | Chisos, Ltd. | Elder #1 | 4,500 | 03933398 |
| 917545 | Aug 7, 2026 | Aug 5, 2026 | Cimarron Engineering, LLC | Blackstone 369 #1 | 5,500 | 03933396 |
| 917523 | Aug 6, 2026 | Aug 4, 2026 | Chisos, Ltd. | Perry #1 | 4,000 | 03933395 |
| 916503 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #8210 | 6,380 | 03933390 |
| 916505 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #8140 | 6,314 | 03933392 |
| 916504 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #7929 | 6,380 | 03933391 |
| 916499 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #7712 | 6,380 | 03933388 |
| 916501 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #6939 | 6,380 | 03933389 |
| 916580 | Jun 22, 2026 | Jun 22, 2026 | Denbury Onshore, LLC | West Hastings Unit #6938 | 6,380 | 03933394 |
Questions about Brazoria County
How many drilling permits were issued in Brazoria County in the last 12 months?
22 permits were issued in Brazoria County in the last 12 months, up 214% from 7 in the 12 months before. 0% were for horizontal wells. The most recent was issued Sep 22, 2026. 4,177 are on file since 1977.
Every Brazoria County permit →Who is the most active operator in Brazoria County?
By drilling permits filed in the last 12 months, Denbury Onshore, LLC is the most active operator in Brazoria County, with 17 of 22, followed by Chisos, Ltd. (2) and HG Operating LLC (1). 2 operators filed permits here in the last 90 days.
Operators in Brazoria County →How many oil and gas wells are in Brazoria County?
4,826 wells are on file in Brazoria County: 500 active, 2,751 plugged, and 14 permitted and not yet drilled. 9 are horizontal, and 44 operators hold them.
Every well in Brazoria County →How much oil and gas does Brazoria County produce?
The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Brazoria County is listed with its reported production on the county's Leases tab.
Leases in Brazoria County →How much water is injected in Brazoria County?
27.6 million barrels of water were injected in Brazoria County in the 12 months through June 2025, reported on form H-10. 352 of the county's 993 disposal and injection permits are active.
Disposal and injection in Brazoria County →What formations are drilled in Brazoria County?
Completion filings for wells in Brazoria County report tops for 6 formations in at least ten wells each. The most reported are the Frio (606 wells, median top 6,896 ft), the Miocene (undifferentiated) (380 wells, median top 3,000 ft), and the Anahuac (168 wells, median top 5,246 ft).
Formations in Brazoria County →What basin is Brazoria County in?
Petrora lists Brazoria County in the Texas Gulf Coast. It is in the Railroad Commission's District 03.
The Texas Gulf Coast →Have there been earthquakes in Brazoria County?
TexNet located no earthquakes of magnitude 2 or more in the area of Brazoria County's permitted wells in the last 2 years.
Earthquakes in Brazoria 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/brazoria?days=30, documented in the API reference.