Skip to content
Royalty Clerk

Texas oil lease

Producing

DINSMOOR -B-

Dinsmoor -B- is an oil lease in Atascosa County, Texas, operated by Brymer Contracting Incorporated in the Dinsmoor (Carrizo) field.

1 well

1,087bbl oil, last 12 months+9% vs prior year
RRC lease
01-00511

Is your check right?

Check my statement

Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Oil in Jul 2026
93 bbl
Reporting since
Jan 2020

Production by month

Oil output rose 9% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output rose 9% over the last 12 monthsMonthly oil production for DINSMOOR -B-, Aug 2023 to Jul 2026. Oil output rose 9% over the last 12 months. 1,087 bbl in the 12 months through Jul 2026, against 994 bbl in the 12 months before.Last 12 months: 1,087 bblbbl per month0255075100125Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 9% over the last 12 monthsMonthly oil production for DINSMOOR -B-, Aug 2023 to Jul 2026. Oil output rose 9% over the last 12 months. 1,087 bbl in the 12 months through Jul 2026, against 994 bbl in the 12 months before.Last 12 monthsbbl per month0255075100125Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed once, most recently in Nov 2023

Operators of this lease over timeBay Rock Operating Company, Jan 2020 to Oct 2023; Brymer Contracting Incorporated, Nov 2023 to Jul 20262020202120222023202420252026Changed Nov 2023Bay Rock Operating CompanyJan 2020 to Oct 2023Brymer Contracting Incorporat…Nov 2023 to now
Operators of this lease over timeBay Rock Operating Company, Jan 2020 to Oct 2023; Brymer Contracting Incorporated, Nov 2023 to Jul 20262020202120222023202420252026Changed Nov 2023Bay Rock Operating CompanyJan 2020 to Oct 2023Brymer Contracting IncorporatedNov 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on DINSMOOR -B-
API numberWell no.Status
42-013-008681Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Gulfmark Energy, Inc.OilGathers100Jan 22, 2024–
Eastex Crude Company, LLCOilGathers100Nov 1, 2023Jan 22, 2024
Eastex Crude CompanyOilGathers100Feb 1, 2010Nov 1, 2023

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

What the drilling permits say

Permits for Dinsmoor -B-
API numberWell no.Acreson the permit
42-013-008681–

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Estimate your royalty

36 months, newest first

Ledger for DINSMOOR -B-
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026Brymer Contracting9397$80.46$2.89
Jun 2026Brymer Contracting9097$84.81$3.15
May 2026Brymer Contracting7749$102.13$2.94
Apr 2026Brymer Contracting95135$100.32$2.77
Mar 2026Brymer Contracting9148$91.38$3.04
Feb 2026Brymer Contracting8386$64.51$3.62
Jan 2026Brymer Contracting8994$60.04$7.72
Dec 2025Brymer Contracting6992$57.97$4.26
Nov 2025Brymer Contracting10894$60.06$3.79
Oct 2025Brymer Contracting8994$60.89$3.19
Sep 2025Brymer Contracting8993$63.96$2.97
Aug 2025Brymer Contracting11493$64.86$2.91
Jul 2025Brymer Contracting3939$68.39$3.20
Jun 2025Brymer Contracting8181$68.17$3.02
May 2025Brymer Contracting9594$62.17$3.12
Apr 2025Brymer Contracting9495$63.54$3.42
Mar 2025Brymer Contracting9794$68.24$4.12
Feb 2025Brymer Contracting8290$71.53$4.19
Jan 2025Brymer Contracting9992$75.74$4.13
Dec 2024Brymer Contracting8793$70.12$3.01
Nov 2024Brymer Contracting10293$69.95$2.12
Oct 2024Brymer Contracting101142$71.99$2.20
Sep 2024Brymer Contracting8145$70.24$2.28
Aug 2024Brymer Contracting3646$76.68$1.99
Jul 2024Brymer Contracting4150$81.80$2.07
Jun 2024Brymer Contracting7098$79.77$2.54
May 2024Brymer Contracting8349$80.02$2.12
Apr 2024Brymer Contracting8385$85.35$1.60
Mar 2024Brymer Contracting6093$81.28$1.49
Feb 2024Brymer Contracting50$77.25$1.72
Jan 2024Brymer Contracting50$74.15$3.18
Dec 2023Brymer Contracting20$71.90$2.52
Nov 2023Brymer Contracting20$77.69$2.71
Oct 2023Bay Rock00$85.64$2.98
Sep 2023Bay Rock30$89.43$2.64
Aug 2023Bay Rock10$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

How to check your stub against this lease

Do your checks match this lease?

Nearby

Dinsmoor (Carrizo) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km