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Texas gas well

Producing

BIEMER 01

Biemer 01 is a gas well in De Witt County, Texas, operated by Marathon Oil Ef LLC in the De Witt (Eagle Ford Shale) field.

1 well

433mcf gas, last 12 months−79% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-266117

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
25 bbl
Gas in Jul 2026
0 mcf

Checks stopped on this lease?

  • Sales

    Sales over the last 3 months fell to 1% of the 9 months before.

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

See why checks stop on this lease

Production by month

Gas output fell 79% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 79% over the last 12 monthsMonthly gas production and oil for BIEMER 01, Aug 2023 to Jul 2026. Gas output fell 79% over the last 12 months. 433 mcf in the 12 months through Jul 2026, against 2,077 mcf in the 12 months before.Last 12 months: 433 mcfmcf per monthbbl per month00200104002060030800401,00050Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 79% over the last 12 monthsMonthly gas production and oil for BIEMER 01, Aug 2023 to Jul 2026. Gas output fell 79% over the last 12 months. 433 mcf in the 12 months through Jul 2026, against 2,077 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month00200104002060030800401,00050Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the last 12 months

All of the gas went to a processing plant in the last 12 monthsShare of BIEMER 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of BIEMER 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on BIEMER 01
API numberWell no.Status
42-123-3256001HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

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

Who buys my oilOil price check

649.79 acres on the newest permit

Check your decimal on this lease
Permits for Biemer 01
API numberWell no.Acreson the permit
42-123-3256001H649.79

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

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What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for BIEMER 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil00000$80.46$2.89
Jun 2026Marathon Oil00110$84.81$3.15
May 2026Marathon Oil00000$102.13$2.94
Apr 2026Marathon Oil0025250$100.32$2.77
Mar 2026Marathon Oil0036360$91.38$3.04
Feb 2026Marathon Oil1121210$64.51$3.62
Jan 2026Marathon Oil221711710$60.04$7.72
Dec 2025Marathon Oil4493930$57.97$4.26
Nov 2025Marathon Oil00000$60.06$3.79
Oct 2025Marathon Oil4416160$60.89$3.19
Sep 2025Marathon Oil8834340$63.96$2.97
Aug 2025Marathon Oil6636360$64.86$2.91
Jul 2025Marathon Oil22221291290$68.39$3.20
Jun 2025Marathon Oil12121231230$68.17$3.02
May 2025Marathon Oil42422162160$62.17$3.12
Apr 2025Marathon Oil1118180$63.54$3.42
Mar 2025Marathon Oil55880$68.24$4.12
Feb 2025Marathon Oil00990$71.53$4.19
Jan 2025Marathon Oil23239139130$75.74$4.13
Dec 2024Marathon Oil19191091090$70.12$3.01
Nov 2024Marathon Oil1147470$69.95$2.12
Oct 2024Marathon Oil2212120$71.99$2.20
Sep 2024Marathon Oil21212852850$70.24$2.28
Aug 2024Marathon Oil34342082080$76.68$1.99
Jul 2024Marathon Oil1146460$81.80$2.07
Jun 2024Marathon Oil10101851850$79.77$2.54
May 2024Marathon Oil25252992990$80.02$2.12
Apr 2024Marathon Oil23232802800$85.35$1.60
Mar 2024Marathon Oil37372872870$81.28$1.49
Feb 2024Marathon Oil25252762760$77.25$1.72
Jan 2024Marathon Oil39392452450$74.15$3.18
Dec 2023Marathon Oil23233513510$71.90$2.52
Nov 2023Marathon Oil18183623620$77.69$2.71
Oct 2023Marathon Oil18183213210$85.64$2.98
Sep 2023Marathon Oil10102362360$89.43$2.64
Aug 2023Marathon Oil991911910$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

OperatorMarathon Oil Ef LLCFieldDe Witt (Eagle Ford Shale)CountyDe Witt County

Marathon Oil Ef LLC in De Witt County

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De Witt (Eagle Ford Shale) field

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