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Texas oil lease

Producing

MANKA UNIT 1

Manka Unit 1 is an oil lease in Karnes County, Texas, operated by Silver Hill Energy Operating LLC in the Eagleville (Eagle Ford-2) field.

1 well

4,905bbl oil, last 12 months0% vs prior year
Operator
Silver Hill Energy Operating LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10025

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil in Jul 2026
487 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: Silver Hill Energy Operating LLC took over from 1776 Energy Operators, LLC in Nov 2025.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Mar 31, 2026 (last P-5 filed Jun 10, 2025).

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 MANKA UNIT 1, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 4,905 bbl in the 12 months through Jul 2026, against 4,907 bbl in the 12 months before.Last 12 months: 4,905 bblbbl per month02505007501,0001,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production for MANKA UNIT 1, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 4,905 bbl in the 12 months through Jul 2026, against 4,907 bbl in the 12 months before.Last 12 monthsbbl per month02505007501,0001,250Jan 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.

Who has run this lease

The operator changed once, most recently in Nov 2025

Operators of this lease over time1776 Energy Operators, LLC, Jan 2020 to Oct 2025; Silver Hill Energy Operating LLC, Nov 2025 to Jul 20262020202120222023202420252026Changed Nov 20251776 Energy Operators, LLCJan 2020 to Oct 2025Silver Hill Energy Operating…Nov 2025 to now
Operators of this lease over time1776 Energy Operators, LLC, Jan 2020 to Oct 2025; Silver Hill Energy Operating LLC, Nov 2025 to Jul 20262020202120222023202420252026Changed Nov 20251776 Energy Operators, LLCJan 2020 to Oct 2025Silver Hill Energy Operating LLCNov 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MANKA UNIT 1
API numberWell no.Status
42-255-320071HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Marketing, L.p.OilGathers100Oct 1, 2025–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017Oct 1, 2025
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017Oct 1, 2025
Phillips 66 CompanyOilGathers100Apr 7, 2016Oct 1, 2025

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

Who buys my oilOil price check

268.32 acres on the newest permit

Check your decimal on this lease
Permits for Manka Unit 1
API numberWell no.Acreson the permit
42-255-320071H268.32

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

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Estimate your royalty

36 months, newest first

Ledger for MANKA UNIT 1
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026Silver Hill487364$80.46$2.89
Jun 2026Silver Hill188176$84.81$3.15
May 2026Silver Hill386361$102.13$2.94
Apr 2026Silver Hill419361$100.32$2.77
Mar 2026Silver Hill462507$91.38$3.04
Feb 2026Silver Hill556739$64.51$3.62
Jan 2026Silver Hill1,073922$60.04$7.72
Dec 2025Silver Hill5185$57.97$4.26
Nov 2025Silver Hill182182$60.06$3.79
Oct 20251776 Energy342563$60.89$3.19
Sep 20251776 Energy384557$63.96$2.97
Aug 20251776 Energy421371$64.86$2.91
Jul 20251776 Energy337724$68.39$3.20
Jun 20251776 Energy383542$68.17$3.02
May 20251776 Energy456727$62.17$3.12
Apr 20251776 Energy278182$63.54$3.42
Mar 20251776 Energy431553$68.24$4.12
Feb 20251776 Energy320552$71.53$4.19
Jan 20251776 Energy416547$75.74$4.13
Dec 20241776 Energy403485$70.12$3.01
Nov 20241776 Energy442185$69.95$2.12
Oct 20241776 Energy375725$71.99$2.20
Sep 20241776 Energy547547$70.24$2.28
Aug 20241776 Energy519544$76.68$1.99
Jul 20241776 Energy5660$81.80$2.07
Jun 20241776 Energy567722$79.77$2.54
May 20241776 Energy547543$80.02$2.12
Apr 20241776 Energy509724$85.35$1.60
Mar 20241776 Energy670365$81.28$1.49
Feb 20241776 Energy597533$77.25$1.72
Jan 20241776 Energy744739$74.15$3.18
Dec 20231776 Energy338344$71.90$2.52
Nov 20231776 Energy6811,074$77.69$2.71
Oct 20231776 Energy470144$85.64$2.98
Sep 20231776 Energy643718$89.43$2.64
Aug 20231776 Energy629540$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

OperatorSilver Hill Energy Operating LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Silver Hill Energy Operating LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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