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Texas gas well

Producing

THREE SISTERS 01

Three Sisters 01 is a gas well in Live Oak County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

71,848mcf gas, last 12 months+999% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-281147

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
12,940 bbl
Gas in Jul 2026
3,589 mcf

Production by month

Gas output rose 17,773% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 17,773% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output rose 17,773% over the last 12 months. 71,848 mcf in the 12 months through Jul 2026, against 402 mcf in the 12 months before.Last 12 months: 71,848 mcfmcf per monthbbl per month002,5005005,0001,0007,5001,50010k2,00012.5k2,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 17,773% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output rose 17,773% over the last 12 months. 71,848 mcf in the 12 months through Jul 2026, against 402 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,5005005,0001,0007,5001,50010k2,00012.5k2,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

97% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
97% of the gas went to a processing plant in the last 12 monthsShare of THREE SISTERS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 97% 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
97% of the gas went to a processing plant in the last 12 monthsShare of THREE SISTERS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 97% 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.

  • Processing plant (3)

    97% · 69,920 mcf

  • Lease fuel (1)

    2.7% · 1,928 mcf

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 THREE SISTERS 01
API numberWell no.Status
42-297-3578034HActive

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

6,372.87 acres on the newest permit

Check your decimal on this lease
Permits for Three Sisters 01
API numberWell no.Acreson the permit
42-297-3578034H6,372.87

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 THREE SISTERS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil1,6991,6993,5893,4760$80.46$2.89
Jun 2026Marathon Oil1,0841,0844,1544,0050$84.81$3.15
May 2026Marathon Oil1,2031,2035,2935,1160$102.13$2.94
Apr 2026Marathon Oil1,0621,0625,9755,7950$100.32$2.77
Mar 2026Marathon Oil9889886,1315,9590$91.38$3.04
Feb 2026Marathon Oil7037036,4306,2430$64.51$3.62
Jan 2026Marathon Oil9099095,3485,1980$60.04$7.72
Dec 2025Marathon Oil9799798938930$57.97$4.26
Nov 2025Marathon Oil7557555,6375,4910$60.06$3.79
Oct 2025Marathon Oil1,4031,4037,9177,7160$60.89$3.19
Sep 2025Marathon Oil8978978,9048,6920$63.96$2.97
Aug 2025Marathon Oil1,2581,25811,57711,3360$64.86$2.91
Jul 2025Marathon Oil98983573500$68.39$3.20
Jun 2025Marathon Oil00000$68.17$3.02
May 2025Marathon Oil00000$62.17$3.12
Apr 2025Marathon Oil00000$63.54$3.42
Mar 2025Marathon Oil6612120$68.24$4.12
Feb 2025Marathon Oil6633330$71.53$4.19
Jan 2025Marathon Oil00000$75.74$4.13
Dec 2024Marathon Oil00000$70.12$3.01
Nov 2024Marathon Oil00000$69.95$2.12
Oct 2024Marathon Oil00000$71.99$2.20
Sep 2024Marathon Oil00000$70.24$2.28
Aug 2024Marathon Oil00000$76.68$1.99
Jul 2024Marathon Oil00000$81.80$2.07
Jun 2024Marathon Oil00000$79.77$2.54
May 2024Marathon Oil00000$80.02$2.12
Apr 2024Marathon Oil00000$85.35$1.60
Mar 2024Marathon Oil2210100$81.28$1.49
Feb 2024Marathon Oil664704670$77.25$1.72
Jan 2024Marathon Oil663333310$74.15$3.18
Dec 2023Marathon Oil1140400$71.90$2.52
Nov 2023Marathon Oil686886860$77.69$2.71
Oct 2023Marathon Oil89891001000$85.64$2.98
Sep 2023Marathon Oil2112111,1891,1850$89.43$2.64
Aug 2023Marathon Oil1321321,3601,3550$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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This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Eagle Ford)CountyLive Oak County

Marathon Oil Ef LLC in Live Oak County

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Sugarkane (Eagle Ford) field

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