Skip to content
Royalty Clerk

Texas oil lease

Producing

DUVAL RANCH SEC. 203

Duval Ranch Sec. 203 is an oil lease in Duval County, Texas, operated by Killam Oil Co., Ltd. in the Petrox, N. (Frio 1250) field.

5 wells

1,254bbl oil, last 12 months−30% vs prior year
Operator
Killam Oil Co., Ltd.
County
Duval County
Field
Petrox, N. (Frio 1250)
RRC lease
04-08921

Is your check right?

Check my statement

Where it sits

This county

Duval CountyDuvalJim WellsDuval County
Duval County
Oil in Jul 2026
25 bbl
Reporting since
Jan 2020

Production by month

Oil output fell 30% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production for DUVAL RANCH SEC. 203, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 1,254 bbl in the 12 months through Jul 2026, against 1,783 bbl in the 12 months before.Last 12 months: 1,254 bblbbl per month0100200300400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production for DUVAL RANCH SEC. 203, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 1,254 bbl in the 12 months through Jul 2026, against 1,783 bbl in the 12 months before.Last 12 monthsbbl per month0100200300400Jan 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.

5 wells on this lease

Wells on DUVAL RANCH SEC. 203
API numberWell no.Status
42-131-3209837Shut-in
42-131-3233938Shut-in
42-131-3290739Shut-in
42-131-3519541Active
42-131-3947342Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.OilGathers50Apr 1, 2012
Valero Marketing and Supply Co.OilGathers50Apr 1, 2012

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

Who buys my oilOil price check

480 acres on the newest permit

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Duval Ranch Sec. 203
API numberWell no.Acreson the permit
42-131-3947342480
42-131-3519541480
42-131-3290739480
42-131-3233938480
42-131-3209837480

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for DUVAL RANCH SEC. 203
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 20262514$80.46$2.89
Jun 202600$84.81$3.15
May 2026108169$102.13$2.94
Apr 2026130118$100.32$2.77
Mar 2026131117$91.38$3.04
Feb 2026122116$64.51$3.62
Jan 2026109116$60.04$7.72
Dec 2025134112$57.97$4.26
Nov 2025101110$60.06$3.79
Oct 2025126179$60.89$3.19
Sep 2025136119$63.96$2.97
Aug 2025132119$64.86$2.91
Jul 2025127121$68.39$3.20
Jun 2025150133$68.17$3.02
May 2025124136$62.17$3.12
Apr 2025159205$63.54$3.42
Mar 202511572$68.24$4.12
Feb 2025131131$71.53$4.19
Jan 2025153136$75.74$4.13
Dec 2024163146$70.12$3.01
Nov 2024220248$69.95$2.12
Oct 2024113159$71.99$2.20
Sep 202414878$70.24$2.28
Aug 2024180239$76.68$1.99
Jul 2024181152$81.80$2.07
Jun 2024168148$79.77$2.54
May 2024163228$80.02$2.12
Apr 2024189159$85.35$1.60
Mar 2024179165$81.28$1.49
Feb 20247983$77.25$1.72
Jan 2024184178$74.15$3.18
Dec 2023255282$71.90$2.52
Nov 2023245187$77.69$2.71
Oct 2023160$85.64$2.98
Sep 2023123178$89.43$2.64
Aug 2023240355$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorKillam Oil Co., Ltd.FieldPetrox, N. (Frio 1250)CountyDuval County

Killam Oil Co., Ltd. in Duval County

All Killam Oil Co., Ltd. leases →

Petrox, N. (Frio 1250) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km