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Texas oil lease

Producing

OLDJAMIE OIL

Oldjamie Oil is an oil lease in Atascosa County, Texas, operated by Calk, Roger D. in the Somerset field.

6 wells

227bbl oil, last 12 months+73% vs prior year
Operator
Calk, Roger D.
County
Atascosa County
Field
Somerset
RRC lease
01-10143

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Oil in Jun 2026
20 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Sales

    No sales reported for the last 5 months of state data (through Jul 2026).

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

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Production by month

Oil output rose 73% over the last 12 months

Jul 2026 was not reported.

  • Oil (bars)
  • Last 12 months
Oil output rose 73% over the last 12 monthsMonthly oil production for OLDJAMIE OIL, Aug 2023 to Jul 2026. Oil output rose 73% over the last 12 months. 207 bbl in the 12 months through Jul 2026, against 120 bbl in the 12 months before.Last 12 months: 207 bblbbl per month020406080Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 73% over the last 12 monthsMonthly oil production for OLDJAMIE OIL, Aug 2023 to Jul 2026. Oil output rose 73% over the last 12 months. 207 bbl in the 12 months through Jul 2026, against 120 bbl in the 12 months before.Last 12 monthsbbl per month020406080Jan 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.

6 wells on this lease

Wells on OLDJAMIE OIL
API numberWell no.Status
42-013-329941Active
42-013-330522Active
42-013-333443Active
42-013-334584Active
42-013-335455Active
42-013-338066Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.OilGathers50Jan 1, 2018
Shell Trading (Us) CompanyOilGathers50Jun 1, 2013

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

Who buys my oilOil price check

105 acres on the newest permit

Check your decimal on this lease
Permits for Oldjamie Oil
API numberWell no.Acreson the permit
42-013-338066105
42-013-335455105
42-013-334584105
42-013-333443105
42-013-330522105
42-013-329941105

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

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36 months, newest first

Ledger for OLDJAMIE OIL
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026No report filed––$80.46$2.89
Jun 2026200$84.81$3.15
May 2026200$102.13$2.94
Apr 2026200$100.32$2.77
Mar 2026200$91.38$3.04
Feb 202657157$64.51$3.62
Jan 2026100$60.04$7.72
Dec 2025100$57.97$4.26
Nov 2025100$60.06$3.79
Oct 2025100$60.89$3.19
Sep 2025100$63.96$2.97
Aug 2025200$64.86$2.91
Jul 2025200$68.39$3.20
Jun 2025100$68.17$3.02
May 202515150$62.17$3.12
Apr 202550$63.54$3.42
Mar 202550$68.24$4.12
Feb 202550$71.53$4.19
Jan 202550$75.74$4.13
Dec 202450$70.12$3.01
Nov 202450$69.95$2.12
Oct 202450$71.99$2.20
Sep 2024200$70.24$2.28
Aug 2024200$76.68$1.99
Jul 2024200$81.80$2.07
Jun 2024200$79.77$2.54
May 2024200$80.02$2.12
Apr 20248148$85.35$1.60
Mar 2024200$81.28$1.49
Feb 2024100$77.25$1.72
Jan 2024100$74.15$3.18
Dec 2023200$71.90$2.52
Nov 2023200$77.69$2.71
Oct 2023200$85.64$2.98
Sep 2023200$89.43$2.64
Aug 2023200$81.39$2.58

No report filed

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

OperatorCalk, Roger D.FieldSomersetCountyAtascosa County

Calk, Roger D. in Atascosa County

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Somerset field

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