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COUNTIES · TEXAS GULF COAST · DISTRICT 03 · CODE 455

Trinity County, Texas

The RRC's county figures put Trinity County at 10,113 bbl of oil and 46,661 Mcf of gas in the twelve months through August 2026; oil is down 20% on the twelve months before.

8 leases under 4 operators had production in those months.

1 drilling permit was issued in Trinity County in the past 90 days, 1 in the 90 days before.

Walker Operating Company leads with 11 permits in the past 12 months, the only operator active in the county.

One operator filed a first Trinity County permit in the past year.

Median permitted depth over the past year is 2,075 ft; 0% of the past year's permits are horizontal.

The county has 3 active disposal and injection permits of 7 on file, with 236K barrels injected in the 12 months reported through September 2025.

278 drilling permits have been issued in Trinity County since 1977.

278 permits on file since 1977 · last issued Sep 24, 2026

Email me new permits

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

28
active wells · 264 on file
4
producing operators, 12 months
8
producing leases, 12 months
10,113
bbl oil, 12 months through Aug 2026 · −20%
46,661
Mcf gas, same 12 months · +47%

RRC COUNTY FIGURES · NO. 190 IN OIL AND NO. 185 IN GAS OF 219 PRODUCING TEXAS COUNTIES

Trinity 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. Leases are still filing for Oct 2025 and Nov 2025 and Jul 2026 and Aug 2026, so those months and the twelve-month totals will rise.

12 months through Aug 2026 10,113 · prior 12 12,627(-20%)

02K4K2017201820192020202120222023202420252026

Latest months

MonthOilGas
Aug 2026still arriving662 bbl3,366 Mcf
Jul 2026still arriving733 bbl3,621 Mcf
Jun 2026513 bbl4,300 Mcf
May 20261,073 bbl4,748 Mcf
Apr 2026206 bbl4,602 Mcf
Mar 20261,138 bbl4,113 Mcf
Feb 20261,109 bbl3,028 Mcf
Jan 20261,124 bbl3,301 Mcf
Dec 2025849 bbl3,267 Mcf
Nov 2025still arriving546 bbl3,615 Mcf
Oct 2025still arriving808 bbl4,096 Mcf
Sep 20251,352 bbl4,604 Mcf

Operators by production

12 MONTHS THROUGH AUG 2026

  1. Parten Operating Inc.1 lease

    1.15K bbl · 46.7K Mcf

  2. HD Operating Co, LLC6 leases

    4.22K bbl · 0 Mcf

  3. Upstream Resource Partners, LLC1 lease

    3.83K bbl · 0 Mcf

  4. 84 Energy LLC6 leases

    915 bbl · 0 Mcf

4 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 Trinity County →

Largest leases

8 LEASES WITH PRODUCTION · 12 MONTHS THROUGH AUG 2026

LeaseOperatorFieldOil, 12 moGas, 12 mo
Champion International Corp.Gas 225153Parten Operating Inc.Tantabogue Creek (Dexter)1,150 bbl46,661 Mcf
1966 PartnershipOil 21140Upstream Resource Partners, LLCM. Gaston (Carrizo -B-)3,830 bbl0 Mcf
SimmsOil 24449HD Operating Co, LLCM. Gaston (Carrizo -B-)2,319 bbl0 Mcf
McClainOil 24358HD Operating Co, LLCM. Gaston (Carrizo -B-)1,057 bbl0 Mcf
ReynoldsOil 21159HD Operating Co, LLCM. Gaston (Carrizo -B-)630 bbl0 Mcf
Gaston, L. W.Oil 22924HD Operating Co, LLCM. Gaston (Carrizo -B-)572 bbl0 Mcf
EdinburghOil 25769HD Operating Co, LLCM. Gaston (Carrizo -B-)351 bbl0 Mcf
C & E TrustOil 24732HD Operating Co, LLCM. Gaston (Carrizo -B-)204 bbl0 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 Trinity County →

Wells by status

264 WELLBORES ON FILE

  1. Plugged

    163

  2. Not on schedule

    51

  3. Producing

    26

  4. Permitted

    7

  5. Temp Abandoned

    5

  6. Spudded

    5

  7. Shut In

    3

  8. No Production

    2

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

024682002200420062008201020122014201620182020202220242026

Drilling permits

Window30 days90 days180 days365 days
1
permits issued, 90d
+0%
vs prior 90d (1)
1
operators filing
0%
horizontal
1,850
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 11 · prior 12 0

02462017201820192020202120222023202420252026

Operators by permits, last 12 months

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

OperatorPermitsWells
Walker Operating Company110

Full operator directory: 92 operators have filed a permit here since 1977 →

New entrants, last 12 months

Operators whose first permit in Trinity County came in the last year. 1 in total.

Permit types, 90d

TypeWindowPriorAll time
Drill11240

What the types mean →

Formations in completed wells

RRC WELLBORE FILE · ≥10 WELLS

Tops reported on completion filings for wells in Trinity County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →

In Trinity County the Woodbine is reported in 26 wells, median top 9,544 ft, highlighted below. Back to the formation →

FormationWellsPermitted last 3 yrsMedian top, ftP10–P90
Carrizo3801,8301,792–2,279
Queen City3701,5541,377–1,860
Wilcox3202,7921,912–3,146
Austin Chalk2809,2327,449–9,703
Woodbine2609,5447,780–9,974
Sparta2401,108687–1,500
Buda21010,3258,074–10,540
Georgetown14010,3839,409–10,581
Weches1401,3761,343–1,433

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Disposal and injection

3
active UIC permits of 7
10.5K
permitted bbl/day, active
236K
bbl injected, last 12 reported months
Sep 2025
reported through

Every active well, operator, and daily reporter in Trinity 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
918801Sep 26, 2026Sep 24, 2026Walker Operating CompanyDue #21,85045530534
916438AmendmentJun 22, 2026Jun 22, 2026Walker Operating CompanyDue #11,80045530533
916438Jun 22, 2026Jun 22, 2026Walker Operating CompanyDue #11,80045530533
913824Mar 9, 2026Mar 9, 2026Walker Operating CompanyFry #32,95045530532
913821Mar 9, 2026Mar 9, 2026Walker Operating CompanyFry #22,55045530531
913779AmendmentMar 4, 2026Mar 4, 2026Walker Operating CompanyFry #12,67545530530
913826Mar 4, 2026Mar 4, 2026Walker Operating CompanyLittle #52,07545530528
913779Mar 4, 2026Mar 4, 2026Walker Operating CompanyFry #13,00045530530
913827Mar 3, 2026Mar 3, 2026Walker Operating CompanyLittle #62,07545530529
913825Mar 3, 2026Mar 3, 2026Walker Operating CompanyLittle #42,07545530527

All Trinity County permits →

Questions about Trinity County

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

11 permits were issued in Trinity County in the last 12 months. 0% were for horizontal wells. The most recent was issued Sep 24, 2026. 278 are on file since 1977.

Every Trinity County permit →

Who is the most active operator in Trinity County?

By drilling permits filed in the last 12 months, Walker Operating Company is the most active operator in Trinity County, with 11 of 11. 1 operator filed permits here in the last 90 days.

Operators in Trinity County →

How many oil and gas wells are in Trinity County?

264 wells are on file in Trinity County, including 28 active, 163 plugged, and 7 permitted and not yet drilled. 9 are horizontal. The active wells are under 5 operators.

Every well in Trinity County →

How much oil and gas does Trinity County produce?

The Railroad Commission's county figures show 10,113 barrels of oil and 46,661 Mcf of gas in Trinity County in the 12 months through August 2026, from 8 leases under 4 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 Trinity County →

Who are the largest producers in Trinity County?

By oil and gas produced in Trinity County in the 12 months through August 2026, the largest operator is Parten Operating Inc., with 1,150 barrels of oil and 46,661 Mcf of gas from 1 lease, followed by HD Operating Co, LLC and Upstream Resource Partners, LLC. 4 operators had production here in those months.

Operators in Trinity County →

How much water is injected in Trinity County?

236,056 barrels of water were injected in Trinity County in the 12 months through September 2025, reported on form H-10. 3 of the county's 7 disposal and injection permits are active.

Disposal and injection in Trinity County →

What formations are drilled in Trinity County?

Completion filings for wells in Trinity County report tops for 9 formations in at least ten wells each. The most reported are the Carrizo (38 wells, median top 1,830 ft), the Queen City (37 wells, median top 1,554 ft), and the Wilcox (32 wells, median top 2,792 ft).

Formations in Trinity County →

What basin is Trinity County in?

Petrora lists Trinity County in the Texas Gulf Coast. It is in the Railroad Commission's District 03.

The Texas Gulf Coast →

Have there been earthquakes in Trinity County?

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

Earthquakes in Trinity 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/trinity?days=90, documented in the API reference.