Texas county · RRC district 03

Galveston County

Galveston County reported 431,408 barrels of oil and 1.6 million mcf of gas in the last 12 months. That ranks 102nd of 224 Texas counties by oil.

County dossier

431,408bbl oil, last 12 months+25% vs prior year

Producing leases: 42of 114 on record
Operators: 11
Fields: 22
Top operator: Hilcorp Energy Company

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Where it sits

This county

Galveston County · RRC district 03

Gas, last 12 months: 1,560,696 mcf
Share of Texas oil: <0.1%
Data through: Jul 2026
Top field: League City, West (Anomalina)

Five years of output in Galveston County

Oil output in Galveston County rose 25% over the last 12 months

431k bbl through Jul 2026, against 346k bbl a year earlier. Peak Sep 2025: 41.2k bbl.

Gas output in Galveston County fell 22% over the last 12 months

1.6M mcf through Jul 2026, against 2M mcf a year earlier. Peak Feb 2025: 222k mcf.

SourceTexas Railroad Commission Production Data Query, county totals, through Jul 2026, file dated Sep 18, 2026.

The biggest leases in Galveston County

Find a leaseOperatorSort

Under each volume: change on the year before.

TIDWELL
03-28171Kaler Energy Corp.League City (9700)
58,932bbl oil+40%
JEWELS UNIT A
03-296199Kaler Energy Corp.League City, West (Anomalina)
1,057,909mcf gas−25%
STEWART TITLE
03-28196Frio Resources, LLCLeague City (9275)
42,354bbl oiln/a
STEWART, MACO -A- 300
03-01631Gcows Operating LLCGillock (Big Gas)
40,887bbl oil+6%
E.W. CRAIG
03-28284Hilcorp Energy CompanySarah White (Frio 9225)
37,802bbl oiln/a
CADE, E. K.
03-02095Big Lake CorporationHigh Island
32,162bbl oil+15%
TRUST UNIT
03-22288Hilcorp Energy CompanyFranks, NW. (8900)
25,022bbl oil−35%
FEDERAL GAYATT
03-22502Hilcorp Energy CompanyFranks, NW. (8900)
19,520bbl oil+75%
TIDWELL
03-28168Kaler Energy Corp.League City (9000 Best)
18,816bbl oil−53%
FRANKS /8900 SAND/ UNIT
03-06493Hilcorp Energy CompanyFranks (8900 Sand)
17,780bbl oiln/a
TIDWELL
03-293296Kaler Energy Corp.League City, West (Anomalina)
236,336mcf gas−31%
STATE TRACT 118
03-28007Big Lake CorporationHigh Island
9,006bbl oil−18%
STEWART
03-28009Hilcorp Energy CompanyFranks, NW. (8900)
8,810bbl oil+140%
CADE, E. KER -A- R/A -A-
03-02103Sandpoint Texas LLCHigh Island
8,809bbl oil+9%
MOODY ESTATE TRUSTEE
03-28301Sandpoint Texas LLCSweetwater Lake (Miocene D-5)
7,653bbl oiln/a
MCLEAN, MARRS D
03-25028Sandpoint Texas LLCHigh Island
5,872bbl oiln/a
OUTTERSIDE, A. J.
03-01269Redbird Oilfield Services Corp.Dickinson
5,649bbl oil−4%
TACQUARD
03-201777Hilcorp Energy CompanyAlta Loma, Ne. (U. Mdl. Andrau)
116,041mcf gas−3%
M. GILBY ET AL OIL UNIT
03-24870Hilcorp Energy CompanyFranks (Rycade)
3,913bbl oiln/a
CAMP WALLACE
03-24461Houston Oil Prod Enterprises,incFranks, NW. (8900)
2,707bbl oil−5%
DEATS-HOLMES
03-11665STS Petroleum LLCGillock (Big Gas, FB-A)
2,415bbl oil+18%
OVERTON CADE
03-24335Sandpoint Texas LLCHigh Island
1,882bbl oil−12%
STEWART, MACO /A/ 390
03-01633Gcows Operating LLCGillock (Big Gas)
1,867bbl oil+15%
SAN LEON FARMS ETAL UNIT
03-01263Houston Oil Prod Enterprises,incDickinson
1,744bbl oil−1%
GORDON
03-27381Hilcorp Energy CompanyFranks (Banfield)
1,531bbl oil+79%

Producing leases in Galveston County

TIDWELL03-28171Kaler Energy Corp.League City (9700)	58,932bbl oil	+40%
JEWELS UNIT A03-296199Kaler Energy Corp.League City, West (Anomalina)	1,057,909mcf gas	−25%
STEWART TITLE03-28196Frio Resources, LLCLeague City (9275)	42,354bbl oil	n/a
STEWART, MACO -A- 30003-01631Gcows Operating LLCGillock (Big Gas)	40,887bbl oil	+6%
E.W. CRAIG03-28284Hilcorp Energy CompanySarah White (Frio 9225)	37,802bbl oil	n/a
CADE, E. K.03-02095Big Lake CorporationHigh Island	32,162bbl oil	+15%
TRUST UNIT03-22288Hilcorp Energy CompanyFranks, NW. (8900)	25,022bbl oil	−35%
FEDERAL GAYATT03-22502Hilcorp Energy CompanyFranks, NW. (8900)	19,520bbl oil	+75%
TIDWELL03-28168Kaler Energy Corp.League City (9000 Best)	18,816bbl oil	−53%
FRANKS /8900 SAND/ UNIT03-06493Hilcorp Energy CompanyFranks (8900 Sand)	17,780bbl oil	n/a
TIDWELL03-293296Kaler Energy Corp.League City, West (Anomalina)	236,336mcf gas	−31%
STATE TRACT 11803-28007Big Lake CorporationHigh Island	9,006bbl oil	−18%
STEWART03-28009Hilcorp Energy CompanyFranks, NW. (8900)	8,810bbl oil	+140%
CADE, E. KER -A- R/A -A-03-02103Sandpoint Texas LLCHigh Island	8,809bbl oil	+9%
MOODY ESTATE TRUSTEE03-28301Sandpoint Texas LLCSweetwater Lake (Miocene D-5)	7,653bbl oil	n/a
MCLEAN, MARRS D03-25028Sandpoint Texas LLCHigh Island	5,872bbl oil	n/a
OUTTERSIDE, A. J.03-01269Redbird Oilfield Services Corp.Dickinson	5,649bbl oil	−4%
TACQUARD03-201777Hilcorp Energy CompanyAlta Loma, Ne. (U. Mdl. Andrau)	116,041mcf gas	−3%
M. GILBY ET AL OIL UNIT03-24870Hilcorp Energy CompanyFranks (Rycade)	3,913bbl oil	n/a
CAMP WALLACE03-24461Houston Oil Prod Enterprises,incFranks, NW. (8900)	2,707bbl oil	−5%
DEATS-HOLMES03-11665STS Petroleum LLCGillock (Big Gas, FB-A)	2,415bbl oil	+18%
OVERTON CADE03-24335Sandpoint Texas LLCHigh Island	1,882bbl oil	−12%
STEWART, MACO /A/ 39003-01633Gcows Operating LLCGillock (Big Gas)	1,867bbl oil	+15%
SAN LEON FARMS ETAL UNIT03-01263Houston Oil Prod Enterprises,incDickinson	1,744bbl oil	−1%
GORDON03-27381Hilcorp Energy CompanyFranks (Banfield)	1,531bbl oil	+79%

Showing 25 of 42, ranked by output value.

Every lease in Galveston County, A to Z →

SourceTexas Railroad Commission Production Data Query.

Who runs the leases, and what they produce

Operators in Galveston County, by oil

Hilcorp Energy leads

Fields in Galveston County, by oil

High Island leads

More operators here

OperatorSTS Petroleum LLC1 OperatorOrangefield East Corp1 OperatorHome Petroleum Corp.1

Search this county →

Recent drilling permits in Galveston County

GALVESTON 215 #9
new drill · Emerald Gather and Trans, LLC · Galveston County
Permit 0918401 · Sep 15, 2026
GALVESTON 215 #4
new drill · Emerald Gather and Trans, LLC · Galveston County
Permit 0918402 · Sep 15, 2026
S.T. 186-L S/2 SE/4 #2
new drill · Emerald Gather and Trans, LLC · Galveston County
Permit 0918403 · Sep 9, 2026
STEWART TITLE #1
recompletion · Frio Resources, LLC · Galveston County
Permit 0916817 · Jul 6, 2026
MOODY ESTATE TRUSTEE #1
recompletion · Sandpoint Texas LLC · Galveston County
Permit 0914839 · Apr 16, 2026
TIDWELL #3
recompletion · Kaler Energy Corp. · Galveston County
Permit 0913807 · Mar 3, 2026