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Texas gas well

Producing

COSTLOW 01

Costlow 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

5,214mcf gas, last 12 months0% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-268205

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Gas in Jul 2026
0 mcf
Reporting since
Jan 2020

Production by month

Gas output held steady over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output held steady over the last 12 monthsMonthly gas production and oil for COSTLOW 01, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 5,214 mcf in the 12 months through Jul 2026, against 5,206 mcf in the 12 months before.Last 12 months: 5,214 mcfmcf per monthbbl per month00500501,0001001,5001502,000200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output held steady over the last 12 monthsMonthly gas production and oil for COSTLOW 01, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 5,214 mcf in the 12 months through Jul 2026, against 5,206 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month00500501,0001001,5001502,000200Jan 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 COSTLOW 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 COSTLOW 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 COSTLOW 01
API numberWell no.Status
42-123-3264702HActive

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 LLCCondensateGathers25Oct 27, 2023–
Gulfmark Energy, Inc.CondensateGathers25Oct 27, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023Oct 27, 2023
Ensign Operating LLCCondensateGathers50Jul 22, 2021Mar 1, 2023
Enterprise Crude Oil LLCCondensateGathers25Jul 22, 2021Mar 1, 2023
Enterprise Crude Pipeline LLCCondensateGathers25Jul 22, 2021Mar 1, 2023
Ensign Operating LLCGas-well gasGathers50Jul 22, 2021Mar 1, 2023
Enterprise Products Operating LLCGas-well gasGathers50Jul 22, 2021Mar 1, 2023

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

Who buys my oilOil price check

643.78 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 Costlow 01
API numberWell no.Acreson the permit
42-123-3264702H643.78

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

Unit decimal checker

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 COSTLOW 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil00000$80.46$2.89
Jun 2026Marathon Oil002342340$84.81$3.15
May 2026Marathon Oil006106100$102.13$2.94
Apr 2026Marathon Oil00000$100.32$2.77
Mar 2026Marathon Oil001,8021,8020$91.38$3.04
Feb 2026Marathon Oil003823820$64.51$3.62
Jan 2026Marathon Oil0086860$60.04$7.72
Dec 2025Marathon Oil0039390$57.97$4.26
Nov 2025Marathon Oil004994990$60.06$3.79
Oct 2025Marathon Oil006496490$60.89$3.19
Sep 2025Marathon Oil005565560$63.96$2.97
Aug 2025Marathon Oil003573570$64.86$2.91
Jul 2025Marathon Oil002582580$68.39$3.20
Jun 2025Marathon Oil00220$68.17$3.02
May 2025Marathon Oil001,1221,1220$62.17$3.12
Apr 2025Marathon Oil006316310$63.54$3.42
Mar 2025Marathon Oil001091090$68.24$4.12
Feb 2025Marathon Oil0021210$71.53$4.19
Jan 2025Marathon Oil003363360$75.74$4.13
Dec 2024Marathon Oil001,1121,1120$70.12$3.01
Nov 2024Marathon Oil004114110$69.95$2.12
Oct 2024Marathon Oil003313310$71.99$2.20
Sep 2024Marathon Oil003843840$70.24$2.28
Aug 2024Marathon Oil004894890$76.68$1.99
Jul 2024Marathon Oil003333330$81.80$2.07
Jun 2024Marathon Oil003633630$79.77$2.54
May 2024Marathon Oil1791796456450$80.02$2.12
Apr 2024Marathon Oil003763760$85.35$1.60
Mar 2024Marathon Oil005935930$81.28$1.49
Feb 2024Marathon Oil007687680$77.25$1.72
Jan 2024Marathon Oil006806800$74.15$3.18
Dec 2023Marathon Oil005305300$71.90$2.52
Nov 2023Marathon Oil005245240$77.69$2.71
Oct 2023Marathon Oil007837830$85.64$2.98
Sep 2023Marathon Oil005595590$89.43$2.64
Aug 2023Marathon Oil006246240$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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