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Texas oil lease

Producing

DUVAL COUNTY RANCH 578

Duval County Ranch 578 is an oil lease in Duval County, Texas, operated by Killam Oil Co., Ltd. in the Sarnosa, West field.

1 well

410bbl oil, last 12 months+29% vs prior year
Operator
Killam Oil Co., Ltd.
County
Duval County
Field
Sarnosa, West
RRC lease
04-14196

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Where it sits

This county

Duval CountyDuvalJim WellsDuval County
Duval County
Oil in Jul 2026
44 bbl
Reporting since
Feb 2023

Checks stopped on this lease?

  • Sales

    No sales reported for the last 4 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output rose 29% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output rose 29% over the last 12 monthsMonthly oil production for DUVAL COUNTY RANCH 578, Aug 2023 to Jul 2026. Oil output rose 29% over the last 12 months. 410 bbl in the 12 months through Jul 2026, against 318 bbl in the 12 months before.Last 12 months: 410 bblbbl per month01020304050Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 29% over the last 12 monthsMonthly oil production for DUVAL COUNTY RANCH 578, Aug 2023 to Jul 2026. Oil output rose 29% over the last 12 months. 410 bbl in the 12 months through Jul 2026, against 318 bbl in the 12 months before.Last 12 monthsbbl per month01020304050Jan 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.

1 well on this lease

Wells on DUVAL COUNTY RANCH 578
API numberWell no.Status
42-131-396682Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.OilGathers100Jan 13, 2023

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

Who buys my oilOil price check

320 acres on the newest permit

Check your decimal on this lease
Permits for Duval County Ranch 578
API numberWell no.Acreson the permit
42-131-396682320

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for DUVAL COUNTY RANCH 578
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026440$80.46$2.89
Jun 2026360$84.81$3.15
May 2026200$102.13$2.94
Apr 2026290$100.32$2.77
Mar 202621158$91.38$3.04
Feb 2026440$64.51$3.62
Jan 2026350$60.04$7.72
Dec 2025390$57.97$4.26
Nov 202521155$60.06$3.79
Oct 2025420$60.89$3.19
Sep 2025400$63.96$2.97
Aug 2025390$64.86$2.91
Jul 2025220$68.39$3.20
Jun 202500$68.17$3.02
May 20250156$62.17$3.12
Apr 2025320$63.54$3.42
Mar 2025420$68.24$4.12
Feb 2025370$71.53$4.19
Jan 2025310$75.74$4.13
Dec 202439159$70.12$3.01
Nov 2024380$69.95$2.12
Oct 2024260$71.99$2.20
Sep 2024320$70.24$2.28
Aug 202419158$76.68$1.99
Jul 2024220$81.80$2.07
Jun 2024230$79.77$2.54
May 202424155$80.02$2.12
Apr 2024260$85.35$1.60
Mar 2024400$81.28$1.49
Feb 2024470$77.25$1.72
Jan 202460$74.15$3.18
Dec 2023170$71.90$2.52
Nov 2023120$77.69$2.71
Oct 2023220$85.64$2.98
Sep 2023120$89.43$2.64
Aug 202338156$81.39$2.58

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

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Nearby

This lease belongs to

OperatorKillam Oil Co., Ltd.FieldSarnosa, WestCountyDuval County

Killam Oil Co., Ltd. in Duval County

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Sarnosa, West field

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