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COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 039

Brazoria County

Brazoria County permitting is running 1.3 permits a month over the trailing 90 days (4 total, down 64% 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 County

Also: every Brazoria County well in the statewide list, searchable → · a year of permits on the map →

Window30 days90 days180 days365 days
4
permits issued, 90d
-64%
vs prior 90d (11)
3
operators filing
0%
horizontal
4,000
avg permitted depth, ft
687
operators, all time

WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026 · WHY ISSUE AND SEEN DATES DIFFER

Permits issued by month

LAST 82 MONTHS · BY ISSUE DATE

Last 12 months 29 · prior 12 17(+71%)

0510152017201820192020202120222023202420252026

Top operators, last 12 months

By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.

OperatorPermitsWells
Denbury Onshore, LLC17414
Chisos, Ltd.20
HG Operating LLC134
Cimarron Engineering, LLC14
Zachry Exploration, LLC11

Full operator directory →

New entrants, last 12 months

Operators whose first permit in Brazoria County came in the last year. 2 in total.

Permit types, 90d

TypeWindowPriorAll time
Drill2132,520

What the types mean →

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 →

FormationWellsPermitted last 3 yrsMedian top, ftP10–P90
Frio60686,8964,819–9,665
Miocene (undifferentiated)38063,0001,063–6,429
Anahuac16805,2464,833–7,376
Caprock1253863580–1,908
Barnett4105,8085,492–6,335
Vicksburg1218,2853,598–10,425

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

PermitSeenIssuedOperatorLease / wellDepthAPI
917877Sep 24, 2026Sep 22, 2026HG Operating LLCBennett Estate #272,00003933397
918321Sep 6, 2026Sep 4, 2026Chisos, Ltd.Elder #14,50003933398
917545Aug 7, 2026Aug 5, 2026Cimarron Engineering, LLCBlackstone 369 #15,50003933396
917523Aug 6, 2026Aug 4, 2026Chisos, Ltd.Perry #14,00003933395
916503Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #82106,38003933390
916505Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #81406,31403933392
916504Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #79296,38003933391
916499Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #77126,38003933388
916501Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #69396,38003933389
916580Jun 22, 2026Jun 22, 2026Denbury Onshore, LLCWest Hastings Unit #69386,38003933394

All Brazoria County permits →

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=90, documented in the API reference.