Petrora

COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 039

Brazoria County, Texas

The RRC's county figures put Brazoria County at 1,883,990 bbl of oil and 3,847,663 Mcf of gas in the twelve months through August 2026; oil is down 9% on the twelve months before.

150 leases under 35 operators had production in those months.

2 drilling permits were issued in Brazoria County in the past 90 days, 12 in the 90 days before.

Denbury Onshore, LLC leads with 16 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 6,300 ft (prior year: 9,130 ft); 0% of the past year's permits are horizontal.

The county has 177 active disposal and injection permits of 739 on file, with 24.9M barrels injected in the 12 months reported through September 2025.

3,741 drilling permits have been issued in Brazoria County since 1977.

3,741 permits on file since 1977 · last issued Sep 22, 2026

Email me new permits

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

500
active wells · 4,826 on file
35
producing operators, 12 months
150
producing leases, 12 months
1.9M
bbl oil, 12 months through Aug 2026 · −9%
3.8M
Mcf gas, same 12 months · +12%

RRC COUNTY FIGURES · NO. 52 IN OIL AND NO. 107 IN GAS OF 219 PRODUCING TEXAS COUNTIES

Brazoria County oil and gas production

RRC COUNTY FIGURES · THROUGH AUG 2026

Texas operators report production by lease, and the Railroad Commission totals it by county. Where a lease lies in more than one county, the split between them is the RRC's. Oil includes condensate; gas includes casinghead gas.

12 months through Aug 2026 1,883,990 · prior 12 2,064,028(-9%)

0200K400K2017201820192020202120222023202420252026

Latest months

MonthOilGas
Aug 2026144,050 bbl332,525 Mcf
Jul 2026154,480 bbl338,293 Mcf
Jun 2026151,530 bbl299,885 Mcf
May 2026156,697 bbl318,460 Mcf
Apr 2026153,776 bbl335,588 Mcf
Mar 2026172,106 bbl342,651 Mcf
Feb 2026145,087 bbl322,942 Mcf
Jan 2026161,742 bbl330,352 Mcf
Dec 2025166,126 bbl324,990 Mcf
Nov 2025156,772 bbl309,573 Mcf
Oct 2025161,019 bbl307,856 Mcf
Sep 2025160,605 bbl284,548 Mcf

Operators by production

12 MONTHS THROUGH AUG 2026

  1. Denbury Onshore, LLC20 leases

    1.53M bbl · 119K Mcf

  2. Hilcorp Energy Company43 leases

    39.2K bbl · 2.16M Mcf

  3. Cimarron Engineering, LLC2 leases

    47.6K bbl · 669K Mcf

  4. Sue-Ann Operating, L.C.4 leases

    66.5K bbl · 0 Mcf

  5. Bluestem Natural Gas LLC4 leases

    1.48K bbl · 340K Mcf

  6. Kaler Energy Corp.2 leases

    29.6K bbl · 44.5K Mcf

  7. Tri-C Resources, LLC1 lease

    8.35K bbl · 154K Mcf

  8. Goldking Minerals Mgmt, L.L.C.1 lease

    28.5K bbl · 23.7K Mcf

35 operators had production here in the twelve months. Each month is credited to the operator that reported it; ranked by barrels of oil equivalent, 6 Mcf to the barrel.

Every operator in Brazoria County →

Largest leases

150 LEASES WITH PRODUCTION · 12 MONTHS THROUGH AUG 2026

LeaseOperatorFieldOil, 12 moGas, 12 mo
West Hasting UnitOil 19054Denbury Onshore, LLCHastings, West1,452,070 bbl118,327 Mcf
H. BlackstoneGas 296708Cimarron Engineering, LLCPegasus Gulf Coast (Grubbs)42,954 bbl547,146 Mcf
Old Ocean UnitGas 48883Hilcorp Energy CompanyOld Ocean (Larsen)7,932 bbl595,360 Mcf
ScoutGas 297176Tri-C Resources Partners I, LLCIowa Colony (9050 Vicksburg)14,850 bbl279,648 Mcf
HCLOil 26729Denbury Onshore, LLCHastings, West60,034 bbl0 Mcf
Old Ocean UnitGas 194351Hilcorp Energy CompanyOld Ocean (Larsen)4,130 bbl310,366 Mcf
RaynorGas 290381Bluestem Natural Gas LLCFour Corners (Frio F-28)1,253 bbl301,716 Mcf
Abrams, W. H.Oil 4505Sue-Ann Operating, L.C.West Columbia New37,902 bbl0 Mcf
Old Ocean UnitGas 175016Hilcorp Energy CompanyOld Ocean (Larsen)2,800 bbl209,780 Mcf
Old Ocean UnitGas 223381Hilcorp Energy CompanyOld Ocean (Larsen)2,728 bbl203,939 Mcf
Force, E.J. UnitOil 19559Goldking Minerals Mgmt, L.L.C.Alvin, North (8100)28,454 bbl23,733 Mcf
Blackstone 156Gas 289172Cimarron Engineering, LLCRattlesnake Mound (6400)4,687 bbl122,120 Mcf
Old Ocean UnitGas 249557Hilcorp Energy CompanyOld Ocean (Larsen)1,864 bbl138,995 Mcf
Halls Bayou ''A''Oil 27355Kaler Energy Corp.Rattlesnake Mound (Big Gas Sand)19,159 bbl13,409 Mcf
Old Ocean UnitGas 204028Hilcorp Energy CompanyOld Ocean (Larsen)1,453 bbl109,127 Mcf

Ranked by barrels of oil equivalent, 6 Mcf to the barrel. A lease in two counties is listed with its share in this one.

Every lease in Brazoria County →

Wells by status

4,826 WELLBORES ON FILE

  1. Plugged

    2,750

  2. Not on schedule

    865

  3. Shut In

    427

  4. Producing

    251

  5. Temp Abandoned

    197

  6. Injection

    107

  7. Lpg Storage

    94

  8. No Production

    44

From the RRC wellbore file and the permit record. Other sites count the RRC's map locations, which include dry holes and locations this file does not hold, so their totals differ.

Wells spudded, by year

HorizontalVertical and directional

0204060802002200420062008201020122014201620182020202220242026

Drilling permits

Window30 days90 days180 days365 days
2
permits issued, 90d
-83%
vs prior 90d (12)
2
operators filing
0%
horizontal
3,250
avg permitted depth, ft

WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 12, 2026 · WHY ISSUE AND SEEN DATES DIFFER

Permits issued by month

LAST 120 MONTHS · BY ISSUE DATE

Last 12 months 21 · prior 12 5(+320%)

05102017201820192020202120222023202420252026

Operators by permits, last 12 months

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

OperatorPermitsWells
Denbury Onshore, LLC16802
Chisos, Ltd.20
HG Operating LLC140
Cimarron Engineering, LLC14
Zachry Exploration, LLC11

Full operator directory: 679 operators have filed a permit here since 1977 →

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
Drill2122,170

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 →

In Brazoria County the Caprock is reported in 125 wells, median top 863 ft, highlighted below. Back to the formation →

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

177
active UIC permits of 739
3.32M
permitted bbl/day, active
24.9M
bbl injected, last 12 reported months
Sep 2025
reported through

Every active well, operator, and daily reporter in Brazoria 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

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 →

Questions about Brazoria County

How many drilling permits were issued in Brazoria County in the last 12 months?

21 permits were issued in Brazoria County in the last 12 months, up 250% from 6 in the 12 months before. 0% were for horizontal wells. The most recent was issued Sep 22, 2026. 3,741 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 16 of 21, 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, including 500 active, 2,751 plugged, and 12 permitted and not yet drilled. 9 are horizontal. The active wells are under 44 operators.

Every well in Brazoria County →

How much oil and gas does Brazoria County produce?

The Railroad Commission's county figures show 1.9 million barrels of oil and 3.8 million Mcf of gas in Brazoria County in the 12 months through August 2026, from 150 leases under 35 operators. Texas operators report production by lease; where a lease lies in more than one county, the split between them is the RRC's.

Production by month in Brazoria County →

Who are the largest producers in Brazoria County?

By oil and gas produced in Brazoria County in the 12 months through August 2026, the largest operator is Denbury Onshore, LLC, with 1.5 million barrels of oil and 118,935 Mcf of gas from 20 leases, followed by Hilcorp Energy Company and Cimarron Engineering, LLC. 35 operators had production here in those months.

Operators in Brazoria County →

How much water is injected in Brazoria County?

24.9 million barrels of water were injected in Brazoria County in the 12 months through September 2025, reported on form H-10. 177 of the county's 739 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?

No earthquakes of magnitude 2 or more were located in the area of Brazoria County's permitted wells in the last 2 years.

Earthquakes in Brazoria County →

About this data

Oil and gas are the Railroad Commission's county figures from its Production Data Query, through Aug 2026: Texas files production by lease, and where a lease lies in more than one county the split is the RRC's. Nothing here is estimated by Petrora. Wells from the RRC wellbore file and the permit record. 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.