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Texas oil lease

No report in 6+ months

OPPENHEIMER-CALVERT UNIT

Oppenheimer-Calvert Unit is an oil lease in Frio County, Texas, operated by Blackbrush O & G, LLC in the Pearsall (Buda, S.) field.

1 well

0bbl oil, last 12 months
Operator
Blackbrush O & G, LLC
County
Frio County
Field
Pearsall (Buda, S.)
RRC lease
01-14398

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Where it sits

This county

Frio CountyFrioZavalaAtascosaUvaldeMedinaBexarFrio County
Frio County
Oil in Jul 2025
0 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

No production to chart

The state shows zero oil and zero gas for all 36 months we hold (Aug 2022 to Jul 2025). A lease that is shut in or newly reported looks like this. The ledger below lists each month.

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 OPPENHEIMER-CALVERT UNIT
API numberWell no.Status
42-163-333041Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Harvest Marketing & Trading, LLCOilGathers100Apr 1, 2025–
Targa Frio Lasalle Pipeline LPCasinghead gasGathers100Aug 1, 2023Apr 1, 2025
Targa Frio Lasalle Pipeline LPCasinghead gasBuys100Aug 1, 2023Apr 1, 2025
Enterprise Crude Oil LLCOilGathers50Aug 1, 2023Apr 1, 2025
Harvest Marketing & Trading, LLCOilGathers50Aug 1, 2023Apr 1, 2025
Enterprise Crude Oil LLCOilGathers100Apr 1, 2023Aug 1, 2023
Harvest Marketing & Trading, LLCOilGathers100Dec 1, 2022Apr 1, 2023

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

Who buys my oilOil price check

640 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Check your decimal on this lease
Permits for Oppenheimer-Calvert Unit
API numberWell no.Acreson the permit
42-163-333041640

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

Unit decimal checker

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36 months, newest first

Ledger for OPPENHEIMER-CALVERT UNIT
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 202500$68.39$3.20
Jun 202500$68.17$3.02
May 202500$62.17$3.12
Apr 2025051$63.54$3.42
Mar 202500$68.24$4.12
Feb 202500$71.53$4.19
Jan 202500$75.74$4.13
Dec 202400$70.12$3.01
Nov 202400$69.95$2.12
Oct 202400$71.99$2.20
Sep 202400$70.24$2.28
Aug 202400$76.68$1.99
Jul 202400$81.80$2.07
Jun 202400$79.77$2.54
May 202400$80.02$2.12
Apr 202400$85.35$1.60
Mar 202400$81.28$1.49
Feb 202400$77.25$1.72
Jan 202400$74.15$3.18
Dec 202300$71.90$2.52
Nov 202300$77.69$2.71
Oct 202300$85.64$2.98
Sep 202300$89.43$2.64
Aug 202300$81.39$2.58
Jul 202300$76.07$2.55
Jun 202300$70.25$2.18
May 202300$71.58$2.15
Apr 202300$79.45$2.16
Mar 202300$73.28$2.31
Feb 202300$76.83$2.38
Jan 202300$78.12$3.27
Dec 202200$76.44$5.53
Nov 202200$84.37$5.45
Oct 202200$87.55$5.66
Sep 202200$84.26$7.88
Aug 202200$93.67$8.81

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

OperatorBlackbrush O & G, LLCFieldPearsall (Buda, S.)CountyFrio County

Blackbrush O & G, LLC in Frio County

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Pearsall (Buda, S.) field

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