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Royalty Clerk

Texas oil lease

Producing

TUMLINSON

Tumlinson is an oil lease in Dimmit County, Texas, operated by McDay Energy Corp. in the Blakeway (Olmos A) field.

2 wells

15bbl oil, last 12 months0% vs prior year
Operator
McDay Energy Corp.
County
Dimmit County
Field
Blakeway (Olmos A)
RRC lease
01-11353

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Where it sits

This county

Dimmit CountyDimmitLa SalleZavalaFrioMaverickDimmit County
Dimmit County
Oil in Jul 2026
1 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Sales

    No sales reported for the last 12 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 held steady over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production for TUMLINSON, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 15 bbl in the 12 months through Jul 2026, against 15 bbl in the 12 months before.Last 12 months: 15 bblbbl per month01122Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production for TUMLINSON, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 15 bbl in the 12 months through Jul 2026, against 15 bbl in the 12 months before.Last 12 monthsbbl per month01122Jan 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.

2 wells on this lease

Wells on TUMLINSON
API numberWell no.Status
42-127-3271314Active
42-127-331711Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Shell Trading (Us) CompanyOilGathers50Dec 1, 2021–
Midcon Gathering LLCOilGathers40Dec 1, 2021–
Sunray Marketing, LLCOilGathers10Dec 1, 2021–
Sunray Marketing, LLCOilGathers100Jan 15, 2018Dec 1, 2021

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

Who buys my oilOil price check

2,105.40 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 1,305 and 2,105.4 acres. Use the acres from your own division order for the well you are paid on.

  • 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 Tumlinson
API numberWell no.Acreson the permit
42-127-3317112,105.40
42-127-32713141,305

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

Unit decimal checker

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36 months, newest first

Ledger for TUMLINSON
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 202610$80.46$2.89
Jun 202610$84.81$3.15
May 202610$102.13$2.94
Apr 202610$100.32$2.77
Mar 202620$91.38$3.04
Feb 202610$64.51$3.62
Jan 202610$60.04$7.72
Dec 202520$57.97$4.26
Nov 202520$60.06$3.79
Oct 202510$60.89$3.19
Sep 202510$63.96$2.97
Aug 202510$64.86$2.91
Jul 202520$68.39$3.20
Jun 202510$68.17$3.02
May 202510$62.17$3.12
Apr 202520$63.54$3.42
Mar 202510$68.24$4.12
Feb 202510$71.53$4.19
Jan 202510$75.74$4.13
Dec 202420$70.12$3.01
Nov 202410$69.95$2.12
Oct 202410$71.99$2.20
Sep 202410$70.24$2.28
Aug 202410$76.68$1.99
Jul 202420$81.80$2.07
Jun 202410$79.77$2.54
May 202410$80.02$2.12
Apr 202410$85.35$1.60
Mar 202410$81.28$1.49
Feb 202400$77.25$1.72
Jan 202410$74.15$3.18
Dec 202320$71.90$2.52
Nov 202310$77.69$2.71
Oct 202300$85.64$2.98
Sep 202310$89.43$2.64
Aug 202320$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

OperatorMcDay Energy Corp.FieldBlakeway (Olmos A)CountyDimmit County

McDay Energy Corp. in Dimmit County

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Blakeway (Olmos A) field

No other producing leases in this field are in our data yet.

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