Skip to content
Royalty Clerk

Texas oil lease

Producing

DCR 579

DCR 579 is an oil lease in Duval County, Texas, operated by Killam Oil Co., Ltd. in the Cedro Hill field.

1 well

2,119bbl oil, last 12 months−18% vs prior year
RRC lease
04-14239

Is your check right?

Check my statement

Where it sits

This county

Duval CountyDuvalJim WellsDuval County
Duval County
Oil in Jul 2026
203 bbl
Reporting since
Apr 2024

Production by month

Oil output fell 18% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output fell 18% over the last 12 monthsMonthly oil production for DCR 579, Apr 2024 to Jul 2026. Oil output fell 18% over the last 12 months. 2,119 bbl in the 12 months through Jul 2026, against 2,583 bbl in the 12 months before.Last 12 months: 2,119 bblbbl per month0100200300400Apr 24JulOctJan 25AprJulOctJan 26AprJul
Oil output fell 18% over the last 12 monthsMonthly oil production for DCR 579, Apr 2024 to Jul 2026. Oil output fell 18% over the last 12 months. 2,119 bbl in the 12 months through Jul 2026, against 2,583 bbl in the 12 months before.Last 12 monthsbbl per month0100200300400Jul 24Jan 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 DCR 579
API numberWell no.Status
42-131-396841Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.OilGathers100Apr 15, 2024

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

672.84 acres on the newest permit

Permits for DCR 579
API numberWell no.Acreson the permit
42-131-396841672.84

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

Estimate your royalty

28 months, newest first

Ledger for DCR 579
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026203154$80.46$2.89
Jun 2026185161$84.81$3.15
May 2026132161$102.13$2.94
Apr 2026143155$100.32$2.77
Mar 2026163152$91.38$3.04
Feb 2026161157$64.51$3.62
Jan 2026192161$60.04$7.72
Dec 2025193154$57.97$4.26
Nov 2025165159$60.06$3.79
Oct 2025197313$60.89$3.19
Sep 2025204160$63.96$2.97
Aug 2025181155$64.86$2.91
Jul 2025231317$68.39$3.20
Jun 2025202161$68.17$3.02
May 2025202153$62.17$3.12
Apr 2025187310$63.54$3.42
Mar 2025276155$68.24$4.12
Feb 2025221307$71.53$4.19
Jan 2025251156$75.74$4.13
Dec 2024201161$70.12$3.01
Nov 2024235315$69.95$2.12
Oct 2024251316$71.99$2.20
Sep 2024163161$70.24$2.28
Aug 2024163160$76.68$1.99
Jul 2024116160$81.80$2.07
Jun 202400$79.77$2.54
May 20241480$80.02$2.12
Apr 2024860$85.35$1.60

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

Leases within 10 km

Drilling permits within 10 km